/* Fonts are loaded via <link> in the page <head> (see templates/layout/header.php
   and admin-header.php) so they are not render-blocking behind this stylesheet. */

@layer reset, tokens, base, layout, components, pages, admin, responsive;

@layer tokens {
  :root {
    --op-navy: #102963;
    --op-blue: #0f97ed;
    --op-blue-700: #0a6fb8;
    --text-brand: #0866a5; /* Compliant brand blue for light mode text */
    --op-blue-soft: rgba(15, 151, 237, 0.1);
    --op-gold: #f0a500;
    --op-elite-gold: #f0a500;
    --op-green: #16a34a;
    --op-success: #16a34a;
    --op-red: #dc2626;
    --op-danger: #dc2626;
    --op-ink: #0d1626;
    --op-slate: #334155;
    --op-muted: #64748b;
    --surface: #f4f7fb;
    --surface-alt: #ffffff;
    --card: #ffffff;
    --card-hover: #f8fafc;
    --border: #dce5f2;
    --text-heading: #0d1626;
    --text-body: #334155;
    --text-muted: #505f73; /* Darkened to satisfy WCAG AA contrast ratio */
    --success-bg: rgba(22, 163, 74, 0.11);
    --warning-bg: rgba(240, 165, 0, 0.14);
    --danger-bg: rgba(220, 38, 38, 0.1);
    --op-success-bg: var(--success-bg);
    --op-elite-gold-bg: var(--warning-bg);
    --font-display: 'Plus Jakarta Sans', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    --space-20: 80px;
    --space-24: 96px;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-pill: 999px;
    --shadow-sm: 0 1px 3px rgba(16, 41, 99, 0.06);
    --shadow-md: 0 4px 12px rgba(16, 41, 99, 0.08);
    --shadow-lg: 0 16px 40px rgba(16, 41, 99, 0.12);
    --focus: 0 0 0 3px rgba(15, 151, 237, 0.24);
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 0.2s var(--ease);
    --op-blue-light: rgba(15, 151, 237, 0.1);
    --z-toolbar: 20;
    --z-header: 30;
    --z-dropdown: 40;
    --z-overlay: 50;
  }

  [data-theme="dark"] {
    --surface: #0d1626;
    --surface-alt: #101b31;
    --card: #141f38;
    --card-hover: #192744;
    --border: #1E2E4A;
    --text-heading: #f5f8ff;
    --text-body: #c7d2e6;
    --text-muted: #8ea0bf;
    --text-brand: var(--op-blue); /* Compliant brand blue for dark mode text */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 24px 70px rgba(0, 0, 0, 0.38);
  }
}

@layer components {
  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
  }

  .nav-dropdown-toggle {
    border: 0;
    background: transparent;
  }

  .nav-dropdown-toggle::after {
    content: "";
    width: 7px;
    height: 7px;
    margin-left: 8px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg) translateY(-2px);
  }

  .nav-link {
    display: inline-flex;
    align-items: center;
  }

  .nav-mega {
    width: min(520px, calc(100vw - 32px));
    display: none;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-2);
    padding: var(--space-3);
  }

  .nav-item-dropdown:hover .nav-mega,
  .nav-item-dropdown.dropdown-open .nav-mega {
    display: grid;
  }

  .nav-mega .dropdown-link {
    border-radius: var(--radius-md);
    padding: var(--space-4);
  }

  .nav-mega .dropdown-link strong {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--text-heading);
    font-size: 0.94rem;
  }

  .nav-mega .dropdown-link span {
    display: block;
    margin-top: 4px;
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 500;
    line-height: 1.4;
  }

  .footer-topline {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, 430px);
    gap: var(--space-8);
    align-items: end;
    margin-bottom: var(--space-10);
    padding-bottom: var(--space-8);
    border-bottom: 1px solid var(--border);
  }

  .footer-update-form {
    display: grid;
    gap: var(--space-3);
  }

  .footer-update-form label {
    color: var(--text-heading);
    font-weight: 800;
  }

  .footer-update-form > div {
    display: flex;
    gap: var(--space-2);
  }

  .footer-update-form input,
  .plugin-search input {
    width: 100%;
    min-height: 42px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--card);
    color: var(--text-body);
    padding: 0 var(--space-4);
  }

  .outbound-icon {
    margin-left: 6px;
    color: var(--text-muted);
    font-size: 0.8em;
  }
}

@layer pages {
  .section-header-left {
    margin-inline: 0;
    text-align: left;
  }

  .plugins-hero-v2,
  .checkout-store-hero,
  .sponsor-hero {
    padding: var(--space-24) 0 var(--space-16);
    background:
      linear-gradient(135deg, color-mix(in srgb, var(--op-blue) 10%, transparent), transparent 42%),
      var(--surface);
  }

  .plugins-hero-grid,
  .checkout-store-grid,
  .sponsor-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
    gap: var(--space-12);
    align-items: center;
  }

  .plugins-hero-grid .hero-title,
  .checkout-store-grid .hero-title,
  .sponsor-hero-grid .hero-title {
    max-width: 760px;
    text-align: left;
    margin-inline: 0;
  }

  .plugin-hero-panel,
  .checkout-trust-card,
  .sponsor-impact-panel {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--card);
    padding: var(--space-8);
    box-shadow: var(--shadow-lg);
  }

  .plugin-hero-panel {
    display: grid;
    gap: var(--space-5);
  }

  .plugin-hero-panel div {
    display: flex;
    justify-content: space-between;
    gap: var(--space-5);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--border);
  }

  .plugin-hero-panel strong {
    color: var(--text-heading);
    font-family: var(--font-display);
    font-size: 2.6rem;
    line-height: 1;
  }

  .plugin-catalog-toolbar {
    position: sticky;
    top: 86px;
    z-index: var(--z-toolbar);
    display: grid;
    grid-template-columns: auto minmax(260px, 420px);
    gap: var(--space-4);
    align-items: center;
    margin-bottom: var(--space-10);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: color-mix(in srgb, var(--card) 94%, transparent);
    padding: var(--space-4);
    box-shadow: var(--shadow-sm);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
  }

  .segmented-control {
    display: inline-flex;
    gap: 4px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface-alt);
    padding: 4px;
  }

  .segmented-control button {
    min-height: 34px;
    border: 0;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-body);
    padding: 0 var(--space-4);
    font-weight: 800;
  }

  .segmented-control button.active {
    background: var(--op-blue);
    color: #fff;
    box-shadow: var(--shadow-sm);
  }

  .plugin-catalog-group {
    margin-top: var(--space-16);
  }

  .plugin-catalog-group:first-of-type {
    margin-top: 0;
  }

  .plugin-catalog-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-5);
  }

  .plugin-catalog-card {
    display: grid;
    grid-template-rows: auto 1fr auto;
    min-height: 310px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--card);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  }

  .plugin-catalog-card:hover {
    transform: translateY(-3px);
    border-color: color-mix(in srgb, var(--op-blue) 42%, var(--border));
    box-shadow: var(--shadow-md);
  }

  .plugin-catalog-logo {
    width: 74px;
    height: 74px;
    display: grid;
    place-items: center;
    margin-bottom: var(--space-5);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface-alt);
  }

  .plugin-catalog-logo img {
    width: 54px;
    height: 54px;
    object-fit: contain;
  }

  .plugin-catalog-logo span {
    color: var(--op-blue);
    font-family: var(--font-display);
    font-size: 1.6rem;
  }

  .plugin-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    align-items: center;
    margin-bottom: var(--space-3);
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 700;
  }

  .plugin-catalog-body {
    display: grid;
    align-content: start;
    gap: var(--space-2);
  }

  .plugin-catalog-card > .btn {
    margin-top: var(--space-5);
    justify-self: start;
  }

  .sponsor-hero .hero-subtitle,
  .plugins-hero-v2 .hero-subtitle,
  .checkout-store-hero .hero-subtitle {
    margin-inline: 0;
    text-align: left;
  }

  .plugins-hero-v2 .hero-actions,
  .checkout-store-hero .hero-actions,
  .sponsor-hero .hero-actions {
    justify-content: flex-start;
  }

  .sponsor-impact-panel {
    display: grid;
    gap: var(--space-4);
  }

  .sponsor-impact-panel div {
    padding: var(--space-4);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface-alt);
  }

  .sponsor-impact-panel strong,
  .sponsor-impact-panel span {
    display: block;
  }

  .sponsor-impact-panel strong {
    color: var(--text-heading);
    margin-bottom: var(--space-1);
  }

  .flash-container {
    margin-top: var(--space-6);
  }

  .sponsor-tier-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.18fr) minmax(280px, 0.82fr);
    gap: var(--space-6);
    align-items: stretch;
  }

  .sponsor-tier-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--card);
    padding: var(--space-8);
    box-shadow: var(--shadow-sm);
  }

  .sponsor-tier-elite {
    border-color: color-mix(in srgb, var(--op-gold) 62%, var(--border));
    background:
      linear-gradient(135deg, rgba(240, 165, 0, 0.14), transparent 38%),
      var(--card);
    box-shadow: var(--shadow-lg);
  }

  .sponsor-tier-card ul {
    display: grid;
    gap: var(--space-3);
    list-style: none;
  }

  .sponsor-tier-card li {
    position: relative;
    padding-left: 24px;
  }

  .sponsor-tier-card li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.7em;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--op-blue);
  }

  .sponsor-forms-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.78fr);
    gap: var(--space-6);
    align-items: start;
  }

  .sponsor-form,
  .sponsor-alt-form,
  .review-form,
  .checkout-panel {
    display: grid;
    gap: var(--space-4);
    padding: var(--space-8);
  }

  .elite-sponsor-grid,
  .home-elite-sponsors {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-6);
  }

  .elite-sponsor-profile,
  .home-elite-sponsor-card {
    border: 1px solid color-mix(in srgb, var(--op-gold) 55%, var(--border));
    border-radius: var(--radius-lg);
    background: var(--card);
    padding: var(--space-8);
    text-align: center;
    box-shadow: var(--shadow-md);
  }

  .sponsor-logo-frame-premium {
    width: 170px;
    height: 94px;
    margin-inline: auto;
    margin-block: var(--space-5);
  }

  .community-sponsor-wall,
  .home-community-sponsors {
    margin-top: var(--space-10);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--card);
    padding: var(--space-6);
    text-align: center;
  }

  .community-sponsor-wall > div,
  .home-community-sponsors > div {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-4);
    margin-top: var(--space-4);
  }

  .home-community-sponsors > span,
  .community-sponsor-wall h3 {
    color: var(--text-heading);
    font-weight: 800;
  }

  .checkout-store-grid {
    align-items: stretch;
  }

  .checkout-trust-card {
    align-self: center;
  }

  .checkout-trust-card strong,
  .checkout-trust-card span {
    display: block;
  }

  .store-product-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-6);
  }

  .store-product-card {
    display: grid;
    grid-template-rows: auto 1fr auto;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--card);
    box-shadow: var(--shadow-sm);
  }

  .store-product-media {
    display: grid;
    min-height: 160px;
    place-items: center;
    background:
      linear-gradient(135deg, color-mix(in srgb, var(--op-blue) 16%, transparent), transparent),
      var(--surface-alt);
  }

  .store-product-media span,
  .demo-product-visual span {
    color: var(--op-blue);
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
  }

  .store-product-body,
  .store-product-footer {
    padding: var(--space-5);
  }

  .store-product-footer {
    display: flex;
    justify-content: space-between;
    gap: var(--space-4);
    align-items: center;
    border-top: 1px solid var(--border);
  }

  .premium-checkout-layout,
  .ownpay-hosted-frame,
  .premium-success-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.72fr);
    gap: var(--space-8);
    align-items: start;
  }

  .checkout-panel,
  .premium-order-summary,
  .ownpay-payment-main,
  .ownpay-merchant-summary,
  .premium-success-card,
  .verification-card,
  .checkout-result-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--card);
    box-shadow: var(--shadow-md);
  }

  .ownpay-payment-main,
  .ownpay-merchant-summary,
  .premium-success-card,
  .verification-card,
  .checkout-result-card {
    padding: var(--space-8);
  }

  .payment-choice-selected {
    display: flex;
    justify-content: space-between;
    gap: var(--space-5);
    align-items: center;
    border: 1px solid color-mix(in srgb, var(--op-blue) 36%, var(--border));
    border-radius: var(--radius-lg);
    background: var(--op-blue-soft);
    padding: var(--space-5);
  }

  .checkout-assurance-list,
  .verification-steps {
    display: grid;
    gap: var(--space-2);
    margin-top: var(--space-5);
  }

  .checkout-assurance-list span,
  .verification-steps span {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface-alt);
    padding: var(--space-3);
    color: var(--text-heading);
    font-weight: 750;
  }

  .ownpay-payment-brand {
    display: flex;
    justify-content: space-between;
    gap: var(--space-4);
    align-items: center;
    margin-bottom: var(--space-6);
  }

  .gateway-ecosystem-premium {
    overflow: hidden;
  }

  .gateway-marquee {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--card);
    padding: var(--space-4);
    box-shadow: var(--shadow-sm);
  }

  .gateway-marquee::before,
  .gateway-marquee::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    z-index: 2;
    width: 80px;
    pointer-events: none;
  }

  .gateway-marquee::before {
    left: 0;
    background: linear-gradient(90deg, var(--card), transparent);
  }

  .gateway-marquee::after {
    right: 0;
    background: linear-gradient(270deg, var(--card), transparent);
  }

  .gateway-marquee-track {
    display: flex;
    width: max-content;
    gap: var(--space-3);
    animation: gateway-marquee 34s linear infinite;
  }

  .gateway-marquee-chip {
    display: inline-flex;
    min-width: max-content;
    align-items: center;
    gap: var(--space-3);
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    background: var(--surface-alt);
    padding: 10px 16px;
    color: var(--text-heading);
  }

  .gateway-marquee-chip img {
    width: 28px;
    height: 28px;
    object-fit: contain;
  }

  @keyframes gateway-marquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
  }

  .review-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, 420px);
    gap: var(--space-8);
    align-items: start;
  }

  .review-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-5);
  }

  .review-card {
    display: grid;
    gap: var(--space-4);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--card);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
  }

  .review-stars {
    color: var(--op-gold);
    font-weight: 900;
    letter-spacing: 2px;
  }

  .review-card footer {
    display: grid;
    gap: 2px;
    border-top: 1px solid var(--border);
    padding-top: var(--space-4);
  }

  .review-card footer strong {
    color: var(--text-heading);
  }

  .review-card footer span {
    color: var(--text-muted);
    font-size: 0.86rem;
  }
}

@layer responsive {
  @media (max-width: 1080px) {
    .nav-mega {
      position: static;
      width: 100%;
      transform: none;
      grid-template-columns: 1fr;
      border: 0;
      box-shadow: none;
      background: transparent;
      padding: var(--space-2) 0 var(--space-4);
    }

    .nav-item-dropdown .nav-mega {
      display: none;
    }

    .nav-item-dropdown.dropdown-open .nav-mega {
      display: grid;
    }

    .plugins-hero-grid,
    .checkout-store-grid,
    .sponsor-hero-grid,
    .premium-checkout-layout,
    .ownpay-hosted-frame,
    .premium-success-layout,
    .review-layout,
    .sponsor-forms-layout {
      grid-template-columns: 1fr;
    }

    .plugin-catalog-grid,
    .store-product-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }

  @media (max-width: 860px) {
    .footer-topline,
    .plugin-catalog-toolbar,
    .sponsor-tier-layout,
    .elite-sponsor-grid,
    .home-elite-sponsors,
    .review-grid {
      grid-template-columns: 1fr;
    }

    .plugin-catalog-toolbar {
      position: static;
    }

    .payment-choice-selected,
    .store-product-footer {
      align-items: stretch;
      flex-direction: column;
    }
  }

  @media (max-width: 560px) {
    .plugin-catalog-grid,
    .store-product-grid {
      grid-template-columns: 1fr;
    }

    .footer-update-form > div {
      flex-direction: column;
    }

    .segmented-control {
      width: 100%;
      overflow-x: auto;
    }

    .segmented-control button {
      flex: 1;
      min-width: max-content;
    }
  }
}

@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  * { margin: 0; padding: 0; }
  html { min-height: 100%; scroll-behavior: smooth; }
  body { min-height: 100vh; }
  img, svg, video, canvas { display: block; max-width: 100%; }
  input, button, textarea, select { font: inherit; }
  button { cursor: pointer; }
}

@layer base {
  body {
    background: var(--surface);
    color: var(--text-body);
    font-family: var(--font-body);
    line-height: 1.55;
    text-rendering: optimizeLegibility;
  }

  body:not(.admin-shell) {
    display: flex;
    min-height: 100vh;
    flex-direction: column;
  }

  a {
    color: var(--text-brand);
    text-decoration: none;
    transition: color var(--transition), border-color var(--transition), background-color var(--transition);
  }

  a:hover { color: var(--op-blue); }

  h1, h2, h3, h4, h5, h6 {
    color: var(--text-heading);
    font-family: var(--font-display);
    font-weight: 800;
    line-height: 1.13;
    letter-spacing: 0;
  }

  h1 { font-size: clamp(2.2rem, 5vw, 4.35rem); }
  h2 { font-size: clamp(1.7rem, 3vw, 2.7rem); }
  h3 { font-size: clamp(1.1rem, 2vw, 1.45rem); }
  p { margin-bottom: var(--space-4); }
  p:last-child { margin-bottom: 0; }
  code, pre { font-family: var(--font-mono); }
  pre { overflow-x: auto; white-space: pre; }
  .muted { color: var(--text-muted); }
  .text-sm { font-size: 0.9rem; }
  .text-center { text-align: center; }
}

@layer layout {
  .container {
    width: min(100% - 32px, 1180px);
    margin-inline: auto;
  }

  .narrow { width: min(100% - 32px, 760px); margin-inline: auto; }
  .section { padding: var(--space-20) 0; }
  .section-tight { padding: var(--space-12) 0; }
  .section-band { background: var(--surface-alt); border-block: 1px solid var(--border); }
  .section-header { max-width: 720px; margin: 0 auto var(--space-10); text-align: center; }
  .section-eyebrow {
    display: inline-flex;
    margin-bottom: var(--space-3);
    color: var(--text-brand);
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
  }

  .grid { display: grid; gap: var(--space-6); }
  .grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .split { display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.98fr); gap: var(--space-12); align-items: center; }
  .cluster { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; }
}

@layer components {
  .logo-img { width: auto; height: 38px; }
  .logo-dark-theme { display: none; }
  [data-theme="dark"] .logo-light-theme { display: none; }
  [data-theme="dark"] .logo-dark-theme { display: block; }
  .footer-logo { margin-bottom: var(--space-4); }

  .site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    background: color-mix(in srgb, var(--surface-alt) 92%, transparent);
    border-bottom: 1px solid var(--border);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
  }

  .site-nav {
    display: flex;
    min-height: 74px;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-5);
  }

  .logo-link { display: inline-flex; align-items: center; }
  .nav-menu { display: flex; list-style: none; align-items: center; gap: var(--space-5); }
  .nav-link { color: var(--text-body); font-size: 0.94rem; font-weight: 700; }
  .nav-link:hover { color: var(--op-blue); }
  .nav-actions { display: flex; align-items: center; gap: var(--space-3); }

  .nav-item-dropdown { position: relative; }
  .dropdown-menu {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    display: none;
    width: 240px;
    transform: translateX(-50%);
    list-style: none;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--card);
    box-shadow: var(--shadow-lg);
  }
  .nav-item-dropdown:hover .dropdown-menu { display: block; }
  .dropdown-link { display: block; padding: 10px 14px; color: var(--text-body); font-weight: 650; }
  .dropdown-link:hover { background: var(--card-hover); color: var(--op-blue); }

  .mobile-menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--card);
    color: var(--text-heading);
  }
  .mobile-menu-toggle span { width: 19px; height: 2px; background: currentColor; border-radius: var(--radius-pill); }

  .btn {
    display: inline-flex;
    min-height: 42px;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 10px 18px;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-body);
    font-size: 0.94rem;
    font-weight: 800;
    line-height: 1;
    transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), border-color var(--transition), color var(--transition);
  }
  .btn:hover { transform: translateY(-1px); }
  .btn:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, button:focus-visible { outline: 0; box-shadow: var(--focus); }
  .btn-primary { background: var(--op-blue-700); color: #fff; box-shadow: 0 10px 22px rgba(10, 111, 184, 0.24); }
  .btn-primary:hover { background: var(--op-navy); color: #fff; }
  .btn-outline { border-color: var(--border); background: var(--surface-alt); }
  .btn-outline:hover { border-color: var(--op-blue-700); color: var(--text-brand); }
  .btn-secondary { background: var(--op-blue-soft); color: var(--text-brand); }
  .btn-danger { background: var(--op-red); color: #fff; }
  .btn-danger:hover { color: #fff; filter: brightness(0.95); }
  .btn-sm { min-height: 34px; padding: 7px 11px; font-size: 0.82rem; }
  .btn-lg { min-height: 50px; padding-inline: 24px; }
  .btn-theme-toggle {
    width: 42px;
    height: 42px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--card);
    color: var(--text-heading);
  }

  .card, .admin-card, .form-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--card);
    box-shadow: var(--shadow-sm);
  }
  .card { padding: var(--space-6); transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition); }
  .card:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--op-blue) 45%, var(--border)); box-shadow: var(--shadow-md); }
  .card-icon, .op-icon {
    display: inline-flex;
    width: 46px;
    height: 46px;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-4);
    border-radius: var(--radius-md);
    background: var(--op-blue-soft);
    color: var(--op-blue);
    font-weight: 900;
    flex-shrink: 0;
  }
  .card-icon svg, .op-icon svg { width: 24px; height: 24px; display: block; }

  .badge, .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    border-radius: var(--radius-pill);
    padding: 5px 10px;
    background: var(--op-blue-soft);
    color: var(--op-blue);
    font-size: 0.78rem;
    font-weight: 800;
  }
  .badge-success { background: var(--success-bg); color: var(--op-green); }
  .badge-warning { background: var(--warning-bg); color: var(--op-gold); }
  .badge-danger { background: var(--danger-bg); color: var(--op-red); }

  .alert {
    margin-bottom: var(--space-6);
    padding: var(--space-4);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-weight: 700;
  }
  .alert-success { border-color: color-mix(in srgb, var(--op-green) 45%, var(--border)); background: var(--success-bg); color: var(--op-green); }
  .alert-error { border-color: color-mix(in srgb, var(--op-red) 45%, var(--border)); background: var(--danger-bg); color: var(--op-red); }

  .field { display: grid; gap: var(--space-2); }
  .field label, .check-field { color: var(--text-heading); font-size: 0.88rem; font-weight: 800; }
  input, textarea, select {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface-alt);
    color: var(--text-body);
    padding: 11px 12px;
  }
  textarea { resize: vertical; }
  input:focus, textarea:focus, select:focus { border-color: var(--op-blue); box-shadow: var(--focus); outline: 0; }
  input:disabled, textarea:disabled, select:disabled { opacity: 0.55; cursor: not-allowed; background: var(--surface); }
  input:invalid:not(:placeholder-shown), textarea:invalid:not(:placeholder-shown) { border-color: var(--op-red); }
  .check-field { display: inline-flex; align-items: center; gap: var(--space-2); }
  .check-field input { width: auto; }
  .form-card { padding: var(--space-6); }
  .form-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; margin-top: var(--space-4); }

  .admin-table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
  .admin-table th, .admin-table td { padding: 13px 14px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
  .admin-table th { background: var(--surface); color: var(--text-heading); font-size: 0.78rem; font-weight: 900; text-transform: uppercase; }
  .table-scroll { overflow-x: auto; }
  .table-actions { display: flex; flex-wrap: wrap; gap: var(--space-2); }
  .table-actions form { display: inline-flex; }
}

@layer pages {
  .hero-section, .home-hero {
    position: relative;
    overflow: hidden;
    padding: var(--space-24) 0 var(--space-20);
    background:
      linear-gradient(180deg, color-mix(in srgb, var(--op-blue) 8%, transparent), transparent 62%),
      radial-gradient(circle at 10% 15%, rgba(15,151,237,0.12), transparent 32%),
      radial-gradient(circle at 90% 5%, rgba(16,41,99,0.12), transparent 30%);
  }
  .hero-section::before, .home-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image: radial-gradient(color-mix(in srgb, var(--border) 85%, transparent) 1px, transparent 1px);
    background-size: 26px 26px;
    opacity: 0.55;
  }
  .home-hero .container, .hero-section .container { position: relative; }
  .hero-title { max-width: 880px; margin: var(--space-4) auto; text-align: center; }
  .hero-subtitle { max-width: 720px; margin: 0 auto var(--space-8); color: var(--text-muted); font-size: 1.16rem; text-align: center; }
  .hero-actions { display: flex; justify-content: center; gap: var(--space-3); flex-wrap: wrap; margin-bottom: var(--space-10); }
  .hero-proof {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-3);
    max-width: 920px;
    margin: 0 auto;
  }
  .proof-pill {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: color-mix(in srgb, var(--card) 88%, transparent);
    padding: var(--space-4);
    text-align: center;
    box-shadow: var(--shadow-sm);
  }
  .proof-pill strong { display: block; color: var(--text-heading); font-family: var(--font-display); font-size: 1.45rem; }
  .proof-pill span { color: var(--text-muted); font-size: 0.82rem; font-weight: 800; text-transform: uppercase; }

  .demo-band {
    background: linear-gradient(135deg, var(--op-navy), #123a85 58%, var(--op-blue));
    color: #fff;
    padding: var(--space-12) 0;
  }
  .demo-band h2, .demo-band p { color: #fff; }
  .demo-band p { color: rgba(255,255,255,0.78); }
  .demo-shell {
    border: 1px solid rgba(255,255,255,0.18);
    border-radius: var(--radius-lg);
    background: rgba(255,255,255,0.1);
    padding: var(--space-4);
  }
  .browser-bar { display: flex; gap: 6px; margin-bottom: var(--space-4); }
  .browser-bar i { width: 9px; height: 9px; border-radius: 50%; background: rgba(255,255,255,0.62); }
  .demo-panel { display: grid; gap: var(--space-3); }
  .demo-row { display: grid; grid-template-columns: 1fr auto; gap: var(--space-4); align-items: center; padding: var(--space-3); border-radius: var(--radius-md); background: rgba(255,255,255,0.1); }

  .value-card h3, .feature-row h3 { margin-bottom: var(--space-3); }
  .ownership-section { background: var(--surface); }
  .ownership-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
    gap: var(--space-12);
    align-items: center;
  }
  .ownership-layout h2 { margin-bottom: var(--space-4); }
  .ownership-proof {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3);
    margin-top: var(--space-8);
  }
  .ownership-proof div {
    border-left: 3px solid var(--op-blue);
    background: var(--surface-alt);
    padding: var(--space-4);
    box-shadow: var(--shadow-sm);
  }
  .ownership-proof strong {
    display: block;
    color: var(--text-heading);
    font-family: var(--font-display);
    font-size: 2rem;
  }
  .ownership-proof span {
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 800;
    text-transform: uppercase;
  }
  .ownership-stack {
    display: grid;
    gap: var(--space-4);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--card);
    padding: var(--space-5);
    box-shadow: var(--shadow-md);
  }
  .ownership-row {
    display: grid;
    grid-template-columns: 54px minmax(0, 1fr);
    gap: var(--space-4);
    align-items: start;
    border-bottom: 1px solid var(--border);
    padding: var(--space-4) 0;
  }
  .ownership-row:first-child { padding-top: 0; }
  .ownership-row:last-child { border-bottom: 0; padding-bottom: 0; }
  .ownership-row .op-icon { margin-bottom: 0; }
  .ownership-row h3 { margin-bottom: var(--space-2); }
  .flow-section { overflow: hidden; }
  .flow-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.86fr) minmax(440px, 1.14fr);
    gap: var(--space-12);
    align-items: start;
  }
  .flow-layout h2 { margin-bottom: var(--space-4); }
  .flow-timeline {
    display: grid;
    gap: var(--space-5);
    counter-reset: none;
    list-style: none;
  }
  .flow-timeline li {
    position: relative;
    display: grid;
    grid-template-columns: 72px minmax(0, 1fr);
    gap: var(--space-5);
    align-items: start;
  }
  .flow-timeline li:not(:last-child)::after {
    content: "";
    position: absolute;
    left: 35px;
    top: 70px;
    bottom: -28px;
    width: 2px;
    background: var(--border);
  }
  .flow-timeline span {
    position: relative;
    z-index: 1;
    display: grid;
    width: 72px;
    height: 72px;
    place-items: center;
    border: 1px solid color-mix(in srgb, var(--op-blue) 45%, var(--border));
    border-radius: 50%;
    background: var(--card);
    color: var(--op-blue);
    font-family: var(--font-display);
    font-weight: 800;
    box-shadow: var(--shadow-sm);
  }
  .flow-timeline div {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--card);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
  }
  .flow-timeline h3 { margin-bottom: var(--space-2); }
  .steps { counter-reset: step; }
  .step-card { position: relative; padding-top: var(--space-8); }
  .step-card::before {
    counter-increment: step;
    content: counter(step);
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    color: var(--op-blue);
    font-family: var(--font-display);
    font-size: 2.3rem;
    opacity: 0.28;
  }
  .code-window {
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--op-ink);
    color: #dce8ff;
    box-shadow: var(--shadow-lg);
  }
  .code-window pre { padding: var(--space-6); font-size: 0.9rem; line-height: 1.8; }
  .code-window strong { color: #7bd2ff; }
  .gateway-strip { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-3); }
  .gateway-chip { border: 1px solid var(--border); border-radius: var(--radius-pill); background: var(--card); padding: 9px 14px; color: var(--text-heading); font-weight: 800; }
  .avatar-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-3); }
  .avatar-grid img { width: 48px; height: 48px; border: 2px solid var(--border); border-radius: 50%; background: var(--card); object-fit: cover; }
  .elite-sponsor-card { border-color: var(--op-gold); box-shadow: 0 18px 50px rgba(240, 165, 0, 0.13); }
  .stats-bar { padding: var(--space-12) 0; background: var(--op-navy); color: #fff; }
  .stat-num { color: #fff; font-family: var(--font-display); font-size: clamp(2rem, 4vw, 3.1rem); font-weight: 800; }
  .stat-label { color: rgba(255,255,255,0.72); font-weight: 800; text-transform: uppercase; font-size: 0.8rem; }

  .registry-note, .api-pill {
    display: flex;
    width: fit-content;
    max-width: 100%;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: color-mix(in srgb, var(--card) 88%, transparent);
    padding: var(--space-3) var(--space-4);
    color: var(--text-body);
    text-align: center;
    box-shadow: var(--shadow-sm);
  }
  .registry-note strong { color: var(--op-blue); margin-right: var(--space-1); }
  .api-pill { font-family: var(--font-mono); font-size: 0.86rem; overflow-wrap: anywhere; }
  .filter-tabs { display: flex; justify-content: center; gap: var(--space-2); flex-wrap: wrap; }
  .registry-card { display: flex; min-height: 250px; flex-direction: column; justify-content: space-between; gap: var(--space-5); }
  .plugin-card { min-height: 280px; }
  .plugin-card-top {
    display: grid;
    grid-template-columns: 64px minmax(0, 1fr);
    gap: var(--space-4);
    align-items: flex-start;
  }
  .registry-logo-box {
    display: grid;
    width: 64px;
    height: 64px;
    flex: 0 0 64px;
    place-items: center;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface-alt);
    box-shadow: var(--shadow-sm);
  }
  .registry-logo-box span {
    color: var(--op-navy);
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 800;
  }
  .registry-logo {
    width: 48px;
    height: 48px;
    aspect-ratio: 1;
    object-fit: contain;
    object-position: center;
  }
  .registry-card-header { display: flex; justify-content: space-between; gap: var(--space-3); align-items: flex-start; margin-bottom: var(--space-2); }
  .registry-card-header h3 { font-size: 1.18rem; }
  .plugin-provider { color: var(--text-muted); font-size: 0.8rem; font-weight: 800; margin-bottom: 0; }
  .registry-card-footer { display: flex; justify-content: space-between; gap: var(--space-4); align-items: flex-end; border-top: 1px solid var(--border); padding-top: var(--space-4); }
  .tag-list { display: flex; flex-wrap: wrap; gap: var(--space-1); }
  .tag-list span {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface);
    padding: 2px var(--space-2);
    color: var(--text-muted);
    font-size: 0.74rem;
    font-weight: 800;
  }
  .empty-state {
    display: grid;
    justify-items: center;
    gap: var(--space-4);
    border: 1px dashed var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface-alt);
    padding: var(--space-12);
    text-align: center;
  }
  .plugins-hero .hero-title { max-width: 940px; }
  .plugin-proof {
    display: grid;
    grid-template-columns: 1fr 1fr 1.35fr;
    gap: var(--space-3);
    max-width: 820px;
    margin: 0 auto;
  }
  .plugin-proof .proof-pill strong { font-size: clamp(1.2rem, 2.4vw, 2rem); overflow-wrap: anywhere; }
  .plugin-api-strip {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(360px, 1.05fr);
    gap: var(--space-8);
    align-items: center;
  }
  .plugin-api-strip h2 { font-size: clamp(1.35rem, 2.2vw, 2rem); }
  .plugin-api-list { display: grid; gap: var(--space-3); }
  .plugin-api-list code {
    display: block;
    overflow-wrap: anywhere;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--card);
    color: var(--text-heading);
    font-family: var(--font-mono);
    font-size: 0.82rem;
    padding: var(--space-3);
  }
  .plugin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-6);
  }
  .plugin-grid-compact { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

  .asset-card { display: flex; flex-direction: column; gap: var(--space-4); }
  .asset-preview {
    display: grid;
    min-height: 132px;
    place-items: center;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    background: var(--surface);
  }
  .asset-preview img { max-height: 72px; width: auto; object-fit: contain; }
  .asset-preview-dark { background: var(--op-ink); }
  .asset-preview-file { background: repeating-linear-gradient(135deg, #eef5ff 0, #eef5ff 10px, #f8fafc 10px, #f8fafc 20px); }
  .asset-preview-file strong { color: var(--op-navy); font-family: var(--font-display); font-size: 2rem; }
  .asset-body { display: grid; gap: var(--space-3); }
  .asset-body h3 { font-size: 1rem; }
  .swatch-card {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--card);
    padding: var(--space-5);
  }
  .swatch { width: 56px; height: 56px; flex: 0 0 56px; border: 1px solid var(--border); border-radius: var(--radius-md); }
  .swatch-navy { background: #102963; }
  .swatch-blue { background: #0f97ed; }
  .cms-container-default, .cms-container-narrow {
    font-size: 1.05rem;
    line-height: 1.7;
  }
  .cms-container-default { max-width: 860px; }
  .cms-container-narrow { max-width: 720px; }
  .cms-page-content { display: grid; gap: var(--space-5); }
  .cms-page-content figure {
    margin: var(--space-2) 0;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--card);
  }
  .cms-page-content figure img {
    width: 100%;
    max-height: 460px;
    object-fit: cover;
  }
  .cms-page-content blockquote {
    border-left: 4px solid var(--op-blue);
    background: var(--surface-alt);
    padding: var(--space-5);
    color: var(--text-heading);
    font-weight: 700;
  }
  .sponsor-logo-frame {
    display: grid;
    width: 100%;
    min-height: 78px;
    place-items: center;
    margin: 0 auto var(--space-4);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface-alt);
    padding: var(--space-4);
  }
  .sponsor-logo-frame-small {
    width: 86px;
    min-height: 46px;
    margin: 0;
    padding: var(--space-2);
  }
  .sponsor-logo {
    max-width: 150px;
    max-height: 54px;
    width: auto;
    height: auto;
    object-fit: contain;
  }
  .sponsor-logo-dark { display: none; }
  [data-theme="dark"] .sponsor-logo-light { display: none; }
  [data-theme="dark"] .sponsor-logo-dark { display: block; }
  .community-sponsor-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    font-weight: 800;
  }
  .showcase-logo {
    width: 52px;
    height: 52px;
    object-fit: contain;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface-alt);
    padding: var(--space-2);
  }
  .sdk-card-head {
    display: grid;
    grid-template-columns: 60px minmax(0, 1fr);
    gap: var(--space-4);
    align-items: center;
    margin-bottom: var(--space-4);
  }
  .sdk-logo-box {
    display: grid;
    width: 60px;
    height: 60px;
    place-items: center;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface-alt);
    color: var(--op-navy);
    font-family: var(--font-display);
    font-weight: 800;
  }
  .sdk-logo-box img {
    width: 44px;
    height: 44px;
    object-fit: contain;
  }

  .checkout-flow-steps {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-3);
    max-width: 920px;
    margin: 0 auto;
  }
  .checkout-flow-steps span {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: color-mix(in srgb, var(--card) 90%, transparent);
    padding: var(--space-3);
    color: var(--text-heading);
    font-size: 0.86rem;
    font-weight: 800;
    text-align: center;
    box-shadow: var(--shadow-sm);
  }
  .demo-product-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-6);
  }
  .demo-product-card {
    display: flex;
    min-height: 360px;
    flex-direction: column;
    justify-content: space-between;
  }
  .demo-product-visual {
    display: grid;
    min-height: 144px;
    place-items: center;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background:
      linear-gradient(135deg, color-mix(in srgb, var(--op-navy) 92%, #fff), color-mix(in srgb, var(--op-blue) 70%, #fff));
    color: #fff;
    margin-bottom: var(--space-5);
  }
  .demo-product-visual span {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 800;
  }
  .demo-product-visual.small {
    width: 72px;
    min-height: 72px;
    height: 72px;
    margin-bottom: 0;
  }
  .demo-product-visual.small span { font-size: 1.1rem; }
  .demo-product-body { display: grid; gap: var(--space-3); }
  .demo-product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    border-top: 1px solid var(--border);
    padding-top: var(--space-4);
    margin-top: var(--space-5);
  }
  .demo-product-footer strong { color: var(--text-heading); font-family: var(--font-display); font-size: 1.18rem; }
  .checkout-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
    gap: var(--space-8);
    align-items: flex-start;
  }
  .checkout-form-card { display: grid; gap: var(--space-5); }
  .checkout-form-card h1 { font-size: clamp(2rem, 3vw, 3rem); }
  .checkout-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4);
  }
  .ownpay-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-5);
    border: 1px solid color-mix(in srgb, var(--op-blue) 34%, var(--border));
    border-radius: var(--radius-lg);
    background: var(--op-blue-soft);
    padding: var(--space-5);
  }
  .order-summary-card, .ownpay-checkout-summary {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--card);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
  }
  .summary-product {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin: var(--space-5) 0;
  }
  .summary-product h2 { font-size: 1.28rem; }
  .summary-lines { display: grid; gap: var(--space-3); margin: var(--space-5) 0; }
  .summary-lines > div {
    display: flex;
    justify-content: space-between;
    gap: var(--space-4);
    border-bottom: 1px solid var(--border);
    padding-bottom: var(--space-3);
  }
  .summary-lines span { color: var(--text-muted); font-weight: 700; }
  .summary-lines strong { color: var(--text-heading); text-align: right; }
  .summary-lines .summary-total {
    border-bottom: 0;
    border-top: 1px solid var(--border);
    padding-top: var(--space-4);
    padding-bottom: 0;
  }
  .summary-total strong { color: var(--op-blue); font-family: var(--font-display); font-size: 1.35rem; }
  .api-preview {
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
  }
  .api-preview h3 { padding: var(--space-4) var(--space-4) 0; font-size: 1rem; }
  .api-preview pre { padding: var(--space-4); color: var(--text-body); font-size: 0.8rem; }
  .ownpay-checkout-frame {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.95fr);
    gap: var(--space-8);
    align-items: stretch;
  }
  .ownpay-checkout-main {
    border-radius: var(--radius-lg);
    background:
      linear-gradient(180deg, color-mix(in srgb, var(--op-blue) 8%, var(--card)), var(--card));
    border: 1px solid var(--border);
    padding: var(--space-8);
    box-shadow: var(--shadow-lg);
  }
  .payment-methods { display: grid; gap: var(--space-4); margin-top: var(--space-6); }
  .payment-method-card {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: var(--space-4);
    align-items: center;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface-alt);
    padding: var(--space-4);
    cursor: pointer;
  }
  .payment-method-card:has(input:checked) {
    border-color: var(--op-blue);
    background: var(--op-blue-soft);
  }
  .payment-method-card input { width: auto; }
  .payment-method-card strong { display: block; color: var(--text-heading); }
  .payment-method-card small { color: var(--text-muted); font-weight: 700; }
  .success-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
    gap: var(--space-8);
    align-items: stretch;
  }
  .success-card { display: grid; gap: var(--space-5); }

  .site-footer { margin-top: auto; border-top: 1px solid var(--border); background: var(--surface-alt); padding: var(--space-16) 0 var(--space-8); }
  .footer-grid { display: grid; grid-template-columns: 1.5fr repeat(4, minmax(0, 1fr)); gap: var(--space-8); margin-bottom: var(--space-10); }
  .footer-col h3 { margin-bottom: var(--space-4); font-size: 0.82rem; text-transform: uppercase; margin-top: 0; }
  .footer-links { list-style: none; display: grid; gap: var(--space-2); }
  .footer-links a { color: var(--text-body); font-size: 0.9rem; font-weight: 650; }
  .footer-socials { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-4); }
  .footer-socials a { border: 1px solid var(--border); border-radius: var(--radius-pill); padding: 5px 10px; color: var(--text-body); font-size: 0.78rem; font-weight: 800; }
  .footer-bottom { display: flex; justify-content: space-between; gap: var(--space-4); border-top: 1px solid var(--border); padding-top: var(--space-6); color: var(--text-muted); font-size: 0.86rem; }

  /* Compare page */
  .compare-table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--card); box-shadow: var(--shadow-sm); }
  .compare-table { width: 100%; border-collapse: collapse; text-align: left; }
  .compare-table th { padding: var(--space-4) var(--space-6); font-weight: 700; color: var(--text-heading); background: var(--surface); border-bottom: 1px solid var(--border); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.03em; }
  .compare-table td { padding: var(--space-4) var(--space-6); border-bottom: 1px solid var(--border); }
  .compare-table tr:last-child td { border-bottom: 0; }
  .compare-highlight { font-weight: 600; color: var(--op-success); }
  .compare-negative { color: var(--op-danger); font-weight: 600; }
  .compare-calculator { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--space-8); box-shadow: var(--shadow-sm); }
  .compare-presets { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-6); }
  .compare-savings { font-family: var(--font-display); font-size: clamp(2.4rem, 5vw, 3.6rem); font-weight: 800; color: var(--op-success); line-height: 1; }
  .compare-verdict { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-6); }
  .compare-verdict-card { border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--space-6); background: var(--card); }

  /* Donate page */
  .donate-layout { display: flex; gap: var(--space-8); flex-wrap: wrap; align-items: start; }
  .donate-form-col { flex: 1.2; min-width: 320px; }
  .donate-wall-col { flex: 1; min-width: 300px; }
  .donate-presets { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-2); margin-bottom: var(--space-4); }
  .donate-stat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-6); margin-bottom: var(--space-8); }
  .donate-stat-value { font-family: var(--font-display); font-size: 2.5rem; font-weight: 800; color: var(--op-blue); line-height: 1; }
  .donate-stat-label { font-size: 0.8rem; font-weight: 700; color: var(--text-muted); text-transform: uppercase; margin-top: var(--space-2); }
  .donate-supporter-wall { max-height: 550px; overflow-y: auto; display: grid; gap: var(--space-4); }
  .donate-supporter-card { border: 1px solid var(--border); border-radius: var(--radius-md); padding: var(--space-4); background: var(--card); }
  .donate-supporter-name { font-weight: 700; color: var(--text-heading); }
  .donate-supporter-amount { font-weight: 700; color: var(--op-success); }
  .donate-supporter-msg { font-style: italic; color: var(--text-muted); font-size: 0.9rem; margin-top: var(--space-2); }
  .donate-supporter-date { font-size: 0.78rem; color: var(--text-muted); margin-top: var(--space-2); }
  .donate-amount-row { display: grid; grid-template-columns: 1fr auto; gap: var(--space-3); align-items: end; }

  /* Contributor page */
  .contributor-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-6); }
  .contributor-card { flex: 0 1 190px; text-align: center; display: flex; flex-direction: column; align-items: center; gap: var(--space-2); padding: var(--space-5) var(--space-4); border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--card); transition: transform var(--transition), box-shadow var(--transition); }
  .contributor-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
  .contributor-card:hover { transform: translateY(-2px); }
  .contributor-avatar { width: 80px; height: 80px; border-radius: var(--radius-pill); border: 2px solid var(--border); object-fit: cover; }
  .contributor-avatar-founder { width: 96px; height: 96px; border-color: var(--op-blue); box-shadow: 0 0 0 3px var(--op-blue-light); }
  .contributor-name { font-weight: 700; color: var(--text-heading); font-size: 0.95rem; }
  .contributor-meta { font-size: 0.82rem; color: var(--text-muted); }

  /* Roadmap page */
  .roadmap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); align-items: start; }
  .roadmap-column { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--space-6); }
  .roadmap-column-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-6); padding-bottom: var(--space-4); border-bottom: 1px solid var(--border); }
  h2.roadmap-column-title { font-weight: 800; font-size: 1rem; margin: 0; }
  .roadmap-count { font-size: 0.82rem; padding: 2px var(--space-3); border-radius: var(--radius-pill); background: var(--op-blue-light); color: var(--op-blue); font-weight: 700; }
  .roadmap-card { border: 1px solid var(--border); border-radius: var(--radius-md); padding: var(--space-4); background: var(--surface-alt); margin-bottom: var(--space-3); }
  .roadmap-card:last-child { margin-bottom: 0; }
  .roadmap-card h3 { font-size: 0.95rem; margin-bottom: var(--space-2); margin-top: 0; }
  .roadmap-card p { font-size: 0.85rem; color: var(--text-muted); }
  .roadmap-target { font-size: 0.78rem; color: var(--op-blue); font-weight: 700; margin-top: var(--space-2); }

  /* Changelog page */
  .changelog-timeline { position: relative; padding-left: var(--space-10); }
  .changelog-timeline::before { content: ''; position: absolute; left: 7px; top: 0; bottom: 0; width: 2px; background: var(--border); }
  .changelog-entry { margin-bottom: var(--space-12); position: relative; }
  .changelog-dot { position: absolute; left: calc(-1 * var(--space-10) + 0px); top: 6px; width: 16px; height: 16px; border-radius: var(--radius-pill); background: var(--op-blue); border: 4px solid var(--surface); z-index: 1; }
  .changelog-header { display: flex; align-items: center; flex-wrap: wrap; gap: var(--space-3); margin-bottom: var(--space-3); }
  .changelog-version { font-family: var(--font-display); font-weight: 800; font-size: 1.3rem; color: var(--text-heading); }
  .changelog-date { font-size: 0.85rem; color: var(--text-muted); }
  .changelog-body { color: var(--text-body); line-height: 1.7; }
  .changelog-body ul { padding-left: var(--space-6); margin-top: var(--space-2); }
  .changelog-body li { margin-bottom: var(--space-1); }

  /* Error pages */
  .error-page { padding: var(--space-24) 0; text-align: center; }
  .error-code { font-family: var(--font-display); font-size: clamp(5rem, 12vw, 8rem); font-weight: 800; line-height: 1; color: var(--op-blue); opacity: 0.2; margin-bottom: var(--space-4); }
  .error-actions { display: flex; justify-content: center; gap: var(--space-4); margin-top: var(--space-8); }

  /* About page */
  .about-timeline { position: relative; padding-left: var(--space-10); }
  .about-timeline::before { content: ''; position: absolute; left: 7px; top: 0; bottom: 0; width: 2px; background: var(--border); }
  .about-milestone { margin-bottom: var(--space-10); position: relative; }
  .about-milestone::before { content: ''; position: absolute; left: calc(-1 * var(--space-10) + 0px); top: 6px; width: 16px; height: 16px; border-radius: var(--radius-pill); background: var(--op-blue); border: 4px solid var(--surface); z-index: 1; }
  .about-milestone h3 { font-size: 1.1rem; margin-bottom: var(--space-2); }
  .about-milestone p { color: var(--text-muted); }

  /* Homepage: founder quote */
  .founder-quote { border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--card); padding: var(--space-8); box-shadow: var(--shadow-md); max-width: 800px; margin: 0 auto; }
  .founder-quote-inner { display: flex; gap: var(--space-6); align-items: start; }
  .founder-quote-avatar { width: 80px; height: 80px; border-radius: var(--radius-pill); border: 3px solid var(--op-blue); flex-shrink: 0; }
  .founder-quote blockquote { font-size: 1.12rem; line-height: 1.7; color: var(--text-heading); font-weight: 500; margin: 0; border-left: 3px solid var(--op-blue); padding-left: var(--space-4); }
  .founder-quote cite { display: block; margin-top: var(--space-4); font-style: normal; font-weight: 700; color: var(--text-muted); font-size: 0.9rem; }

  /* Homepage: feature alternating layout */
  .feature-alternating { display: grid; gap: var(--space-16); }
  .feature-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-12); align-items: center; }
  .feature-row:nth-child(even) { direction: rtl; }
  .feature-row:nth-child(even) > * { direction: ltr; }
  .feature-text h3 { font-size: 1.4rem; margin-bottom: var(--space-3); }
  .feature-text p { color: var(--text-muted); line-height: 1.6; }

  /* Homepage: 3-path CTA */
  .cta-paths { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); max-width: 960px; margin: 0 auto; }
  .cta-path-card { border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--card); padding: var(--space-8); text-align: center; box-shadow: var(--shadow-sm); transition: transform var(--transition), box-shadow var(--transition); }
  .cta-path-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
  .cta-path-icon { width: 48px; height: 48px; border-radius: var(--radius-md); background: var(--op-blue-light); color: var(--op-blue); display: grid; place-items: center; margin: 0 auto var(--space-4); font-size: 1.3rem; font-weight: 800; }
  .cta-path-icon svg { width: 24px; height: 24px; }
  .cta-path-card h3 { font-size: 1.15rem; margin-bottom: var(--space-2); }
  .cta-path-card p { color: var(--text-muted); font-size: 0.92rem; margin-bottom: var(--space-4); }

  /* Homepage: showcase strip */
  .showcase-strip { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-8); align-items: center; padding: var(--space-6) 0; }
  .showcase-strip-item { display: flex; align-items: center; gap: var(--space-3); color: var(--text-muted); font-weight: 600; font-size: 0.95rem; transition: color var(--transition); }
  .showcase-strip-item:hover { color: var(--text-heading); }
  .showcase-strip-logo { width: 40px; height: 40px; border-radius: var(--radius-md); border: 1px solid var(--border); object-fit: contain; background: var(--surface-alt); padding: 4px; }

  /* Homepage: plugin ecosystem */
  .plugin-ecosystem { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-12); align-items: start; }
  .plugin-type-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
  .plugin-type-card { border: 1px solid var(--border); border-radius: var(--radius-md); padding: var(--space-4); background: var(--card); text-align: center; }
  .plugin-type-card .op-icon { margin: 0 auto var(--space-3); }
  .plugin-type-card h3 { font-size: 0.95rem; margin-bottom: var(--space-1); margin-top: 0; }
  .plugin-type-card p { font-size: 0.82rem; color: var(--text-muted); }

  /* Contact form */
  .contact-form-wrap { max-width: 640px; margin: 0 auto; }

  /* Footer social links with icons */
  .footer-soc-link { display: inline-flex; align-items: center; gap: var(--space-2); }
  .footer-soc-link svg { width: 17px; height: 17px; flex-shrink: 0; opacity: 0.85; }

  /* ─── Features page: animated, non-technical flow diagrams ─── */
  .flow-viz { display: grid; gap: var(--space-16); }
  .flow-block { border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--card); box-shadow: var(--shadow-sm); padding: var(--space-10) var(--space-8); }
  .flow-block-head { text-align: center; max-width: 620px; margin: 0 auto var(--space-10); }
  .flow-block-head h3 { font-size: clamp(1.3rem, 2.6vw, 1.7rem); margin-bottom: var(--space-2); }
  .flow-block-head p { color: var(--text-muted); }

  /* Journey: horizontal animated flow of stages */
  .journey { position: relative; }
  .journey-track { display: grid; grid-template-columns: repeat(5, 1fr); gap: var(--space-2); position: relative; }
  /* connecting rail behind the steps */
  .journey-track::before { content: ''; position: absolute; left: 10%; right: 10%; top: 34px; height: 3px; border-radius: var(--radius-pill); background: var(--border); z-index: 0; }
  /* animated pulse that travels along the rail */
  .journey-track::after { content: ''; position: absolute; top: 30px; left: 10%; width: 11px; height: 11px; border-radius: var(--radius-pill); background: var(--op-blue); box-shadow: 0 0 0 5px var(--op-blue-soft), 0 0 14px 2px var(--op-blue); z-index: 1; animation: journey-pulse 7s var(--ease) infinite; }
  .journey-step { position: relative; z-index: 2; display: flex; flex-direction: column; align-items: center; text-align: center; gap: var(--space-3); padding: 0 var(--space-1); }
  .journey-icon { width: 70px; height: 70px; border-radius: var(--radius-pill); display: grid; place-items: center; background: var(--card); border: 2px solid var(--border); color: var(--text-muted); transition: color var(--transition), border-color var(--transition), background var(--transition), transform var(--transition), box-shadow var(--transition); }
  .journey-icon svg { width: 30px; height: 30px; }
  .journey-step h4 { font-size: 0.98rem; margin: 0; color: var(--text-heading); }
  .journey-step p { font-size: 0.84rem; color: var(--text-muted); margin: 0; line-height: 1.45; }
  .journey-amount { font-family: var(--font-display); font-weight: 800; color: var(--op-success); font-size: 0.92rem; }
  /* each step lights up in sequence */
  .journey-step .journey-icon { animation: journey-step 7s var(--ease) infinite; }
  .journey-step:nth-child(1) .journey-icon { animation-delay: 0s; }
  .journey-step:nth-child(2) .journey-icon { animation-delay: 1.4s; }
  .journey-step:nth-child(3) .journey-icon { animation-delay: 2.8s; }
  .journey-step:nth-child(4) .journey-icon { animation-delay: 4.2s; }
  .journey-step:nth-child(5) .journey-icon { animation-delay: 5.6s; }

  @keyframes journey-step {
    0%, 100% { color: var(--text-muted); border-color: var(--border); transform: translateY(0); box-shadow: none; }
    6%, 16%  { color: #fff; border-color: var(--op-blue); background: var(--op-blue); transform: translateY(-6px); box-shadow: var(--shadow-md); }
    24%      { color: var(--text-muted); border-color: var(--border); background: var(--card); transform: translateY(0); }
  }
  @keyframes journey-pulse {
    0%   { left: 10%; opacity: 0; }
    4%   { opacity: 1; }
    96%  { opacity: 1; }
    100% { left: 90%; opacity: 0; }
  }

  /* Balance: double-entry shown as two equal bars */
  .balance { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: var(--space-8); max-width: 760px; margin: 0 auto; }
  .balance-side { display: grid; gap: var(--space-4); }
  .balance-row { border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--surface-alt); padding: var(--space-4); display: flex; align-items: center; gap: var(--space-3); }
  .balance-row .op-icon { margin: 0; width: 40px; height: 40px; }
  .balance-row .op-icon svg { width: 20px; height: 20px; }
  .balance-meta { display: grid; gap: 2px; }
  .balance-meta strong { font-size: 0.96rem; color: var(--text-heading); }
  .balance-meta span { font-size: 0.78rem; color: var(--text-muted); }
  .balance-bar { height: 8px; border-radius: var(--radius-pill); background: var(--op-blue-soft); margin-top: var(--space-2); overflow: hidden; }
  .balance-bar i { display: block; height: 100%; width: 100%; border-radius: var(--radius-pill); background: var(--op-blue); transform-origin: left center; animation: balance-fill 4s var(--ease) infinite; }
  .balance-row.is-credit .balance-bar i { background: var(--op-success); animation-delay: .15s; }
  .balance-equals { display: grid; place-items: center; gap: var(--space-2); }
  .balance-eq-mark { font-family: var(--font-display); font-size: 2rem; font-weight: 800; color: var(--text-muted); }
  .balance-check { width: 44px; height: 44px; border-radius: var(--radius-pill); display: grid; place-items: center; background: var(--success-bg); color: var(--op-success); opacity: 0; transform: scale(.6); animation: balance-check 4s var(--ease) infinite; }
  .balance-check svg { width: 26px; height: 26px; }

  @keyframes balance-fill {
    0%   { transform: scaleX(0); }
    45%  { transform: scaleX(1); }
    90%  { transform: scaleX(1); }
    100% { transform: scaleX(0); }
  }
  @keyframes balance-check {
    0%, 40%   { opacity: 0; transform: scale(.6); }
    55%, 90%  { opacity: 1; transform: scale(1); }
    100%      { opacity: 0; transform: scale(.6); }
  }

  @media (prefers-reduced-motion: reduce) {
    .journey-track::after { animation: none; opacity: 1; left: 50%; }
    .journey-step .journey-icon { animation: none; }
    .journey-step:nth-child(3) .journey-icon { color: #fff; background: var(--op-blue); border-color: var(--op-blue); }
    .balance-bar i { animation: none; transform: scaleX(1); }
    .balance-check { animation: none; opacity: 1; transform: scale(1); }
  }
}

@layer admin {
  .admin-shell { display: grid; grid-template-columns: 260px minmax(0, 1fr); min-height: 100vh; background: var(--surface); }
  .login-shell { display: grid; min-height: 100vh; place-items: center; padding: var(--space-4); background: var(--surface); }
  .login-panel { width: min(100%, 420px); }
  .login-card { display: grid; gap: var(--space-5); box-shadow: var(--shadow-lg); }
  .login-brand { display: grid; justify-items: center; gap: var(--space-2); text-align: center; }
  .login-brand h1 { font-size: 1.55rem; }
  .admin-sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    border-right: 1px solid var(--border);
    background: var(--surface-alt);
    padding: var(--space-5);
  }
  .sidebar-brand { display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--border); padding-bottom: var(--space-4); margin-bottom: var(--space-4); }
  .sidebar-exit { margin-top: var(--space-8); border-top: 1px solid var(--border); padding-top: var(--space-4); }
  .admin-main { padding: var(--space-8); overflow-x: hidden; }
  .sidebar-menu { display: grid; gap: var(--space-1); list-style: none; }
  .sidebar-link, .sidebar-button {
    display: flex;
    width: 100%;
    align-items: center;
    border: 0;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-body);
    padding: 9px 11px;
    font-weight: 800;
    text-align: left;
  }
  .sidebar-link:hover, .sidebar-link.active, .sidebar-button:hover { background: var(--op-blue-soft); color: var(--op-blue); }
  .sidebar-button { color: var(--op-red); }
  .admin-panel { display: grid; gap: var(--space-6); }
  .admin-panel-narrow { max-width: 760px; }
  .admin-heading { display: flex; justify-content: space-between; gap: var(--space-4); align-items: flex-start; }
  .admin-card { padding: var(--space-6); }
  .admin-card .stat-num { color: var(--op-blue); }
  .admin-card .stat-label { color: var(--text-muted); }
  .table-card { padding: 0; overflow: hidden; }
  .table-card > p { padding: var(--space-6); }
  .table-card-header { padding: var(--space-6); border-bottom: 1px solid var(--border); background: var(--surface-alt); }
  .admin-form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-4); }
  .field-wide { grid-column: 1 / -1; }
  .inline-form, .inline-stack { display: flex; gap: var(--space-2); flex-wrap: wrap; align-items: center; }
  .inline-stack { flex-direction: column; align-items: stretch; min-width: 210px; }
  .sidebar-group-label {
    margin: var(--space-4) 0 var(--space-1);
    color: var(--text-muted);
    font-size: 0.72rem;
    font-weight: 900;
    text-transform: uppercase;
  }
  .sidebar-icon {
    display: inline-grid;
    width: 24px;
    height: 24px;
    place-items: center;
    margin-right: var(--space-2);
    border-radius: var(--radius-sm);
    background: var(--surface);
    color: var(--op-blue);
    font-size: 0.76rem;
    font-weight: 900;
  }
  .sidebar-icon svg {
    width: 16px;
    height: 16px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
  }
  .admin-insight-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: var(--space-4);
  }
  .admin-kpi-card {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    color: inherit;
  }
  .admin-kpi-card:hover { color: inherit; transform: translateY(-1px); }
  .admin-card-icon {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    border-radius: var(--radius-md);
    background: var(--op-blue-soft);
    color: var(--op-blue);
    font-family: var(--font-display);
    font-weight: 800;
  }
  .admin-section-heading {
    display: flex;
    justify-content: space-between;
    gap: var(--space-4);
    align-items: end;
    border-bottom: 1px solid var(--border);
    padding-bottom: var(--space-4);
  }
  .admin-section-heading code { overflow-wrap: anywhere; color: var(--text-muted); font-size: 0.78rem; }
  .admin-registry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: var(--space-5);
  }
  .admin-registry-card {
    display: grid;
    gap: var(--space-5);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--card);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
  }
  .admin-registry-card__preview {
    display: grid;
    grid-template-columns: 64px minmax(0, 1fr);
    gap: var(--space-4);
  }
  .registry-logo-box-admin { width: 64px; height: 64px; }
  .admin-row-title {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    align-items: center;
    margin-bottom: var(--space-2);
  }
  .admin-row-title h3 { font-size: 1.08rem; }
  .text-xs { font-size: 0.78rem; }
  .admin-registry-form {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4);
  }
  .admin-registry-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-3);
  }
  .admin-clear-form { display: flex; justify-content: flex-end; }
  .admin-page-editor {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: var(--space-6);
    align-items: start;
  }
  .admin-editor-main { display: grid; gap: var(--space-6); }
  .admin-editor-sidebar {
    position: sticky;
    top: var(--space-6);
    display: grid;
    gap: var(--space-4);
  }
  .admin-editor-toolbar {
    display: flex;
    justify-content: space-between;
    gap: var(--space-4);
    align-items: start;
    margin-bottom: var(--space-5);
  }
  .block-editor-buttons { display: flex; flex-wrap: wrap; gap: var(--space-2); justify-content: flex-end; }
  .block-editor {
    display: grid;
    gap: var(--space-4);
  }
  .block-editor-empty {
    border: 1px dashed var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    padding: var(--space-8);
    text-align: center;
  }
  .block-editor-block {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface-alt);
    padding: var(--space-4);
  }
  .block-editor-block-head {
    display: flex;
    justify-content: space-between;
    gap: var(--space-3);
    align-items: center;
    margin-bottom: var(--space-3);
  }
  .block-editor-block-head strong {
    color: var(--text-heading);
    font-size: 0.82rem;
    text-transform: uppercase;
  }
  .block-editor-block-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
  }
  .admin-settings-grid {
    display: grid;
    gap: var(--space-5);
  }
  .admin-sticky-actions {
    position: sticky;
    bottom: var(--space-4);
    display: flex;
    justify-content: flex-end;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: color-mix(in srgb, var(--card) 94%, transparent);
    padding: var(--space-4);
    box-shadow: var(--shadow-md);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
  }
}

@layer responsive {
  @media (max-width: 1080px) {
    .site-nav { flex-wrap: wrap; padding: var(--space-3) 0; }
    .mobile-menu-toggle { display: inline-flex; margin-left: auto; }
    .nav-menu, .nav-actions { display: none; width: 100%; }
    .site-header.nav-open .nav-menu, .site-header.nav-open .nav-actions { display: flex; }
    .site-header.nav-open .nav-menu { flex-direction: column; align-items: stretch; gap: 0; }
    .site-header.nav-open .nav-actions { flex-direction: column; align-items: stretch; }
    .site-header.nav-open .nav-actions .btn, .site-header.nav-open .nav-actions .btn-theme-toggle { width: 100%; }
    .nav-link { display: flex; min-height: 44px; align-items: center; border-top: 1px solid var(--border); }
    .dropdown-menu { position: static; display: block; width: 100%; transform: none; border: 0; box-shadow: none; background: transparent; }
    .split { grid-template-columns: 1fr; }
    .plugin-api-strip { grid-template-columns: 1fr; }
    .ownership-layout, .flow-layout { grid-template-columns: 1fr; }
    .checkout-layout, .ownpay-checkout-frame, .success-layout { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .feature-row { grid-template-columns: 1fr; }
    .feature-row:nth-child(even) { direction: ltr; }
    .cta-paths { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
    .founder-quote-inner { flex-direction: column; align-items: center; text-align: center; }
    .founder-quote blockquote { border-left: 0; padding-left: 0; border-top: 3px solid var(--op-blue); padding-top: var(--space-4); }
    .plugin-ecosystem { grid-template-columns: 1fr; }
    .compare-verdict { grid-template-columns: 1fr; }
  }

  @media (max-width: 860px) {
    .grid-3, .grid-4, .grid-2, .hero-proof, .plugin-proof, .ownership-proof { grid-template-columns: 1fr; }
    .checkout-flow-steps, .demo-product-grid, .checkout-form-grid { grid-template-columns: 1fr; }
    .admin-shell { display: block; }
    .admin-sidebar { position: static; height: auto; }
    .admin-main { padding: var(--space-5); }
    .admin-heading { display: grid; }
    .admin-form-grid { grid-template-columns: 1fr; }
    .admin-page-editor { grid-template-columns: 1fr; }
    .admin-editor-sidebar { position: static; }
    .admin-registry-form { grid-template-columns: 1fr; }
    .admin-section-heading { display: grid; }
    .flow-timeline li { grid-template-columns: 56px minmax(0, 1fr); }
    .flow-timeline span { width: 56px; height: 56px; }
    .flow-timeline li:not(:last-child)::after { left: 27px; top: 56px; }
    .footer-bottom { flex-direction: column; }
    .roadmap-grid { grid-template-columns: 1fr; }
    .donate-layout { flex-direction: column; }
    .stats-bar .grid { grid-template-columns: repeat(3, 1fr); }
    .journey-track { grid-template-columns: 1fr; gap: var(--space-5); }
    .journey-track::before, .journey-track::after { display: none; }
    .journey-step { flex-direction: row; text-align: left; gap: var(--space-4); }
    .journey-step .journey-step-body { flex: 1; }
    .balance { grid-template-columns: 1fr; gap: var(--space-5); text-align: center; }
    .flow-block { padding: var(--space-8) var(--space-5); }
  }

  @media (max-width: 560px) {
    .container, .narrow { width: min(100% - 24px, 1180px); }
    .section, .hero-section, .home-hero { padding: var(--space-16) 0; }
    .hero-actions .btn { width: 100%; }
    .plugin-card-top { grid-template-columns: 56px minmax(0, 1fr); }
    .registry-logo-box { width: 56px; height: 56px; }
    .registry-logo { width: 42px; height: 42px; }
    .registry-card-footer { align-items: stretch; flex-direction: column; }
    .registry-card-footer .btn { width: 100%; }
    .demo-product-footer, .ownpay-option { align-items: stretch; flex-direction: column; }
    .demo-product-footer .btn, .ownpay-option .btn { width: 100%; }
    .ownpay-checkout-main { padding: var(--space-5); }
    .footer-grid { grid-template-columns: 1fr; }
    .donate-presets { grid-template-columns: repeat(2, 1fr); }
    .stats-bar .grid { grid-template-columns: repeat(2, 1fr); }
    .error-actions { flex-direction: column; align-items: center; }
    .plugin-type-grid { grid-template-columns: 1fr; }
  }
}
