@layer reset, tokens, base, layout, components, utilities;

@layer reset {
  html {
    box-sizing: border-box;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
  }

  *,
  *::before,
  *::after {
    box-sizing: inherit;
  }

  body,
  h1,
  h2,
  h3,
  p,
  ul,
  ol,
  dl,
  dd,
  figure,
  blockquote {
    margin: 0;
  }

  ul,
  ol {
    padding: 0;
    list-style: none;
  }

  img,
  picture,
  svg {
    display: block;
    max-inline-size: 100%;
  }

  button,
  input {
    font: inherit;
    color: inherit;
  }
}

@layer tokens {
  :root {
    /* Core brand colors from Now Humming app theme */
    --brand-orange: #fb8c00;
    --brand-orange-deep: #c25e00;
    --brand-pink: #ec4899;
    --brand-purple: #8b5cf6;
    --brand-cobalt: #1e40af;
    --brand-cyan: #22d3ee;

    /* Light palette tokens */
    --bg-canvas-light: #f0f4ff;
    --bg-surface-light: #f8fafc;
    --bg-card-light: rgba(255, 255, 255, 0.86);
    --bg-card-solid-light: #ffffff;
    --bg-elevated-light: rgba(241, 245, 255, 0.92);
    --border-subtle-light: rgba(30, 64, 175, 0.14);
    --border-strong-light: rgba(139, 92, 246, 0.34);
    --text-primary-light: #0f172a;
    --text-secondary-light: #334155;
    --text-muted-light: #475569;
    --accent-text-light: #b45309;
    --pill-pink-text-light: #be185d;
    --wordmark-start-light: #db2777;
    --wordmark-end-light: #6d28d9;
    --header-bg-light: rgba(240, 244, 255, 0.78);
    --shadow-card-light: 0 18px 42px -14px rgba(15, 23, 42, 0.12);

    /* Dark palette tokens */
    --bg-canvas-dark: #0a0a1a;
    --bg-surface-dark: #12102a;
    --bg-card-dark: rgba(26, 24, 53, 0.82);
    --bg-card-solid-dark: #1a1835;
    --bg-elevated-dark: rgba(31, 28, 66, 0.92);
    --border-subtle-dark: rgba(139, 92, 246, 0.24);
    --border-strong-dark: rgba(236, 72, 153, 0.45);
    --text-primary-dark: #f8fafc;
    --text-secondary-dark: #cbd5e1;
    --text-muted-dark: #94a3b8;
    --accent-text-dark: #ffb74d;
    --pill-pink-text-dark: #f9a8d4;
    --wordmark-start-dark: #f472b6;
    --wordmark-end-dark: #a78bfa;
    --header-bg-dark: rgba(10, 10, 26, 0.78);
    --shadow-card-dark: 0 22px 50px -12px rgba(0, 0, 0, 0.55);

    /* Default resolved semantic tokens (light first, fallback for older browsers) */
    --bg-canvas: var(--bg-canvas-light);
    --bg-surface: var(--bg-surface-light);
    --bg-card: var(--bg-card-light);
    --bg-card-solid: var(--bg-card-solid-light);
    --bg-elevated: var(--bg-elevated-light);
    --border-subtle: var(--border-subtle-light);
    --border-strong: var(--border-strong-light);
    --text-primary: var(--text-primary-light);
    --text-secondary: var(--text-secondary-light);
    --text-muted: var(--text-muted-light);
    --accent-text: var(--accent-text-light);
    --pill-pink-text: var(--pill-pink-text-light);
    --wordmark-start: var(--wordmark-start-light);
    --wordmark-end: var(--wordmark-end-light);
    --header-bg: var(--header-bg-light);
    --shadow-card: var(--shadow-card-light);

    --font-sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-script: "Pacifico", "Brush Script MT", cursive;
    --radius-sm: 0.75rem;
    --radius-md: 1.125rem;
    --radius-lg: 1.5rem;
    --radius-pill: 9999px;

    --space-gutter: clamp(1rem, 3dvw, 2.5rem);
    --container-max: 74rem;

    color-scheme: light dark;
    accent-color: var(--brand-pink);
  }

  /* Reflect explicit <meta name="color-scheme"> override in CSS */
  :root:has(> head > meta[name="color-scheme"][content="dark"]) {
    color-scheme: dark;
  }

  :root:has(> head > meta[name="color-scheme"][content="light"]) {
    color-scheme: light;
  }

  /* Fallback tokens when light-dark() is not supported */
  @media (prefers-color-scheme: dark) {
    :root {
      --bg-canvas: var(--bg-canvas-dark);
      --bg-surface: var(--bg-surface-dark);
      --bg-card: var(--bg-card-dark);
      --bg-card-solid: var(--bg-card-solid-dark);
      --bg-elevated: var(--bg-elevated-dark);
      --border-subtle: var(--border-subtle-dark);
      --border-strong: var(--border-strong-dark);
      --text-primary: var(--text-primary-dark);
      --text-secondary: var(--text-secondary-dark);
      --text-muted: var(--text-muted-dark);
      --accent-text: var(--accent-text-dark);
      --pill-pink-text: var(--pill-pink-text-dark);
      --wordmark-start: var(--wordmark-start-dark);
      --wordmark-end: var(--wordmark-end-dark);
      --header-bg: var(--header-bg-dark);
      --shadow-card: var(--shadow-card-dark);
    }
  }

  @supports (color: light-dark(white, black)) {
    :root {
      --bg-canvas: light-dark(var(--bg-canvas-light), var(--bg-canvas-dark));
      --bg-surface: light-dark(var(--bg-surface-light), var(--bg-surface-dark));
      --bg-card: light-dark(var(--bg-card-light), var(--bg-card-dark));
      --bg-card-solid: light-dark(var(--bg-card-solid-light), var(--bg-card-solid-dark));
      --bg-elevated: light-dark(var(--bg-elevated-light), var(--bg-elevated-dark));
      --border-subtle: light-dark(var(--border-subtle-light), var(--border-subtle-dark));
      --border-strong: light-dark(var(--border-strong-light), var(--border-strong-dark));
      --text-primary: light-dark(var(--text-primary-light), var(--text-primary-dark));
      --text-secondary: light-dark(var(--text-secondary-light), var(--text-secondary-dark));
      --text-muted: light-dark(var(--text-muted-light), var(--text-muted-dark));
      --accent-text: light-dark(var(--accent-text-light), var(--accent-text-dark));
      --pill-pink-text: light-dark(var(--pill-pink-text-light), var(--pill-pink-text-dark));
      --wordmark-start: light-dark(var(--wordmark-start-light), var(--wordmark-start-dark));
      --wordmark-end: light-dark(var(--wordmark-end-light), var(--wordmark-end-dark));
      --header-bg: light-dark(var(--header-bg-light), var(--header-bg-dark));
      --shadow-card: light-dark(var(--shadow-card-light), var(--shadow-card-dark));
    }
  }
}

@layer base {
  body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-canvas);
    background-image:
      radial-gradient(60rem 36rem at 12% -6%, rgba(139, 92, 246, 0.22), transparent 65%),
      radial-gradient(50rem 34rem at 92% 4%, rgba(236, 72, 153, 0.16), transparent 60%),
      radial-gradient(45rem 30rem at 50% 60%, rgba(251, 140, 0, 0.08), transparent 70%);
    background-attachment: fixed;
    min-block-size: 100dvh;
    overflow-x: clip;
  }

  h1,
  h2,
  h3 {
    line-height: 1.16;
    letter-spacing: -0.025em;
    color: var(--text-primary);
    text-wrap: balance;
  }

  p {
    color: var(--text-secondary);
    text-wrap: pretty;
    overflow-wrap: break-word;
  }

  a {
    color: inherit;
    text-decoration: none;
  }

  :where(a:any-link, button, summary, [tabindex]):focus-visible {
    outline: 3px solid var(--brand-pink);
    outline-offset: 3px;
  }

  /* Theme toggle state branching without JS classes */
  .theme-icon-light {
    display: none;
  }

  .theme-icon-dark {
    display: inline-flex;
  }

  @media (prefers-color-scheme: dark) {
    .theme-icon-light {
      display: inline-flex;
    }
    .theme-icon-dark {
      display: none;
    }
  }

  :root:has(> head > meta[name="color-scheme"][content="dark"]) .theme-icon-light {
    display: inline-flex;
  }
  :root:has(> head > meta[name="color-scheme"][content="dark"]) .theme-icon-dark {
    display: none;
  }

  :root:has(> head > meta[name="color-scheme"][content="light"]) .theme-icon-light {
    display: none;
  }
  :root:has(> head > meta[name="color-scheme"][content="light"]) .theme-icon-dark {
    display: inline-flex;
  }
}

@layer layout {
  .container {
    inline-size: min(100% - (var(--space-gutter) * 2), var(--container-max));
    margin-inline: auto;
  }

  .section {
    padding-block: clamp(3.5rem, 7dvw, 6rem);
  }

  .section-header {
    max-inline-size: 46rem;
    margin-inline: auto;
    margin-block-end: clamp(2rem, 4dvw, 3.25rem);
    text-align: center;
  }

  .section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.35rem 0.9rem;
    border-radius: var(--radius-pill);
    background: rgba(139, 92, 246, 0.14);
    border: 1px solid var(--border-strong);
    color: var(--accent-text);
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-block-end: 0.9rem;
  }

  .section-title {
    font-size: clamp(1.75rem, 1.2rem + 2.4dvw, 2.75rem);
    font-weight: 800;
    margin-block-end: 0.9rem;
  }

  .section-lead {
    font-size: clamp(1rem, 0.95rem + 0.35dvw, 1.15rem);
    max-inline-size: 62ch;
    margin-inline: auto;
  }
}

@layer components {
  /* Skip link */
  .skip-link:focus-visible {
    position: fixed;
    inset-block-start: 0.75rem;
    inset-inline-start: 0.75rem;
    z-index: 1000;
    padding: 0.65rem 1.1rem;
    border-radius: var(--radius-pill);
    background: var(--bg-card-solid);
    color: var(--text-primary);
    font-weight: 700;
    border: 2px solid var(--brand-pink);
  }

  /* Glassmorphic Header */
  .site-header {
    position: sticky;
    inset-block-start: 0;
    z-index: 100;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    background: var(--header-bg);
    border-block-end: 1px solid var(--border-subtle);
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-block-size: 4.5rem;
  }

  .brand-lockup {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    min-block-size: 2.75rem;
    flex-shrink: 0;
  }

  .brand-logo-img {
    inline-size: 2.4rem;
    block-size: 2.4rem;
    object-fit: contain;
    filter: drop-shadow(0 4px 12px rgba(236, 72, 153, 0.32));
  }

  .brand-wordmark {
    display: inline-block;
    font-family: var(--font-script);
    font-size: clamp(1.35rem, 1.15rem + 0.5dvw, 1.65rem);
    font-weight: 400;
    line-height: 1.65;
    padding-block: 0.15rem 0.3rem;
    padding-inline: 0.05rem 0.35rem;
    margin-block: -0.15rem -0.3rem;
    background: linear-gradient(90deg, var(--wordmark-start), var(--wordmark-end));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }

  .primary-nav {
    display: none;
  }

  .primary-nav ul {
    display: flex;
    align-items: center;
    gap: 0.35rem;
  }

  .primary-nav a {
    display: inline-flex;
    align-items: center;
    min-block-size: 2.75rem;
    padding-inline: 0.85rem;
    border-radius: var(--radius-pill);
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: color 0.18s ease, background-color 0.18s ease;
  }

  .primary-nav a:hover {
    color: var(--text-primary);
    background: rgba(139, 92, 246, 0.12);
  }

  .header-actions {
    display: flex;
    align-items: center;
    gap: 0.6rem;
  }

  .icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-inline-size: 2.75rem;
    min-block-size: 2.75rem;
    padding: 0.55rem;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border-subtle);
    background: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    transition: border-color 0.18s ease, transform 0.18s ease, background-color 0.18s ease;
  }

  .icon-btn:hover {
    border-color: var(--border-strong);
    transform: translateY(-1px);
  }

  .btn.header-cta {
    display: none;
  }

  @media (min-width: 56rem) {
    .primary-nav {
      display: block;
    }

    .mobile-menu-btn {
      display: none;
    }

    .btn.header-cta {
      display: inline-flex;
    }
  }

  /* Buttons */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    min-block-size: 2.875rem;
    padding-block: 0.65rem;
    padding-inline: 1.35rem;
    border-radius: var(--radius-pill);
    font-size: 0.95rem;
    font-weight: 700;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease, opacity 0.18s ease;
  }

  .btn-primary {
    background: linear-gradient(95deg, #c2410c 0%, #db2777 55%, #7c3aed 100%);
    color: #ffffff;
    box-shadow: 0 10px 28px -6px rgba(219, 39, 119, 0.45);
  }

  .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 32px -6px rgba(236, 72, 153, 0.58);
  }

  .btn-secondary {
    background: var(--bg-card);
    border-color: var(--border-strong);
    color: var(--text-primary);
    backdrop-filter: blur(12px);
  }

  .btn-secondary:hover {
    border-color: var(--brand-pink);
    transform: translateY(-2px);
  }

  .btn-sm {
    min-block-size: 2.5rem;
    padding-block: 0.45rem;
    padding-inline: 1.05rem;
    font-size: 0.875rem;
  }

  /* Deep Link Banner (preserved for /room/, /dedication, /hum, /invite) */
  .deeplink-banner {
    display: none;
    margin-block-end: 2rem;
    padding: clamp(1.25rem, 3dvw, 2rem);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    border: 1.5px solid rgba(251, 140, 0, 0.55);
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(18px);
    text-align: center;
  }

  .deeplink-banner.is-visible {
    display: block;
  }

  .deeplink-badge {
    display: inline-block;
    padding: 0.32rem 0.9rem;
    border-radius: var(--radius-pill);
    background: rgba(251, 140, 0, 0.16);
    color: var(--accent-text);
    border: 1px solid rgba(251, 140, 0, 0.4);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-block-end: 0.75rem;
  }

  .deeplink-title {
    font-size: clamp(1.35rem, 1rem + 1.5dvw, 1.85rem);
    font-weight: 800;
    margin-block-end: 0.5rem;
  }

  .deeplink-desc {
    max-inline-size: 52ch;
    margin-inline: auto;
    margin-block-end: 1.25rem;
  }

  .deeplink-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.85rem;
  }

  /* Hero Section */
  .hero {
    padding-block: clamp(2.5rem, 6dvw, 5.25rem) clamp(3rem, 6dvw, 5rem);
  }

  .hero-grid {
    display: grid;
    gap: clamp(2rem, 5dvw, 4rem);
    align-items: center;
  }

  @media (min-width: 58rem) {
    .hero-grid {
      grid-template-columns: 1.08fr 0.92fr;
    }
  }

  .hero-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.95rem;
    border-radius: var(--radius-pill);
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--accent-text);
    margin-block-end: 1.25rem;
  }

  .pulse-dot {
    inline-size: 0.55rem;
    block-size: 0.55rem;
    border-radius: 50%;
    background: var(--brand-pink);
    box-shadow: 0 0 0 4px rgba(236, 72, 153, 0.25);
  }

  .hero-title {
    font-size: clamp(2.25rem, 1.4rem + 3.8dvw, 3.85rem);
    font-weight: 800;
    margin-block-end: 1.15rem;
  }

  .gradient-text {
    background: linear-gradient(95deg, var(--brand-orange) 0%, var(--brand-pink) 50%, var(--brand-purple) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }

  .hero-subtitle {
    font-size: clamp(1.02rem, 0.95rem + 0.4dvw, 1.2rem);
    max-inline-size: 56ch;
    margin-block-end: 1.85rem;
  }

  .hero-cta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
    margin-block-end: 1.65rem;
  }

  .hero-trust-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.35rem;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-muted);
  }

  .hero-trust-list li {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
  }

  /* Hero Visual Stage */
  .hero-stage {
    position: relative;
    padding: clamp(1.4rem, 3dvw, 2.2rem);
    border-radius: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(18px);
    overflow: hidden;
  }

  .hero-stage::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 28%, rgba(236, 72, 153, 0.22) 0%, rgba(139, 92, 246, 0.14) 38%, transparent 72%);
    pointer-events: none;
  }

  .hero-logo-center {
    position: relative;
    display: grid;
    place-items: center;
    margin-block-end: 1.4rem;
    padding-block: 0.5rem;
  }

  .hero-logo-ring {
    position: relative;
    display: grid;
    place-items: center;
    inline-size: clamp(10.5rem, 22dvw, 14rem);
    aspect-ratio: 1;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08), rgba(139, 92, 246, 0.12) 60%, transparent 72%);
    border: 1px solid var(--border-strong);
  }

  .hero-logo-img {
    inline-size: 84%;
    block-size: auto;
    aspect-ratio: 1;
    object-fit: contain;
    filter: drop-shadow(0 14px 28px rgba(139, 92, 246, 0.35));
  }

  @media (prefers-reduced-motion: no-preference) {
    .hero-logo-img {
      animation: gentle-float 5.5s ease-in-out infinite;
    }

    @keyframes gentle-float {
      0%,
      100% {
        transform: translateY(0);
      }
      50% {
        transform: translateY(-7px);
      }
    }
  }

  .stage-cards {
    display: grid;
    gap: 0.75rem;
  }

  .mini-app-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.85rem;
    padding: 0.85rem 1rem;
    border-radius: var(--radius-md);
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
  }

  .mini-card-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-inline-size: 0;
  }

  .mini-badge-icon {
    display: grid;
    place-items: center;
    inline-size: 2.35rem;
    block-size: 2.35rem;
    border-radius: 0.75rem;
    background: linear-gradient(135deg, rgba(251, 140, 0, 0.2), rgba(236, 72, 153, 0.22));
    font-size: 1.15rem;
    flex-shrink: 0;
  }

  .mini-card-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
  }

  .mini-card-sub {
    font-size: 0.78rem;
    color: var(--text-muted);
  }

  .mini-pill {
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-pill);
    font-size: 0.72rem;
    font-weight: 800;
    white-space: nowrap;
    background: rgba(236, 72, 153, 0.16);
    color: var(--pill-pink-text);
    border: 1px solid rgba(236, 72, 153, 0.35);
  }

  .mini-pill--live {
    background: rgba(251, 140, 0, 0.16);
    color: var(--accent-text);
    border-color: rgba(251, 140, 0, 0.4);
  }

  /* Equalizer decoration */
  .eq-bars {
    display: inline-flex;
    align-items: flex-end;
    gap: 3px;
    block-size: 1.1rem;
  }

  .eq-bars span {
    inline-size: 3px;
    border-radius: 99px;
    background: linear-gradient(180deg, var(--brand-orange), var(--brand-pink));
  }

  .eq-bars span:nth-child(1) { block-size: 45%; }
  .eq-bars span:nth-child(2) { block-size: 95%; }
  .eq-bars span:nth-child(3) { block-size: 65%; }
  .eq-bars span:nth-child(4) { block-size: 85%; }

  @media (prefers-reduced-motion: no-preference) {
    .eq-bars span {
      animation: eq-bounce 1.1s ease-in-out infinite alternate;
    }
    .eq-bars span:nth-child(2) { animation-delay: 0.15s; }
    .eq-bars span:nth-child(3) { animation-delay: 0.35s; }
    .eq-bars span:nth-child(4) { animation-delay: 0.2s; }

    @keyframes eq-bounce {
      from { transform: scaleY(0.4); }
      to { transform: scaleY(1); }
    }
  }

  /* Cards & Grids */
  .purpose-grid {
    display: grid;
    gap: 1.25rem;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 15.5rem), 1fr));
  }

  .glass-card {
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(14px);
    transition: border-color 0.2s ease, transform 0.2s ease;
  }

  .glass-card:hover {
    border-color: var(--border-strong);
    transform: translateY(-2px);
  }

  .card-icon {
    display: inline-grid;
    place-items: center;
    inline-size: 2.85rem;
    block-size: 2.85rem;
    border-radius: 0.9rem;
    background: linear-gradient(135deg, rgba(251, 140, 0, 0.18), rgba(139, 92, 246, 0.22));
    border: 1px solid var(--border-strong);
    font-size: 1.35rem;
    margin-block-end: 1rem;
  }

  .card-title {
    font-size: 1.125rem;
    font-weight: 800;
    margin-block-end: 0.5rem;
  }

  .card-text {
    font-size: 0.94rem;
  }

  /* Features Bento Grid */
  .bento-grid {
    display: grid;
    gap: 1.25rem;
    grid-template-columns: 1fr;
  }

  @media (min-width: 48rem) {
    .bento-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  @media (min-width: 66rem) {
    .bento-grid {
      grid-template-columns: repeat(3, 1fr);
    }

    .bento-span-2 {
      grid-column: span 2;
    }
  }

  .feature-tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin-block-start: 1rem;
  }

  .chip {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.28rem 0.7rem;
    border-radius: var(--radius-pill);
    font-size: 0.78rem;
    font-weight: 700;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
  }

  /* Interactive Use Cases Tabs */
  .use-cases-shell {
    border-radius: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    box-shadow: var(--shadow-card);
    padding: clamp(1.25rem, 3.5dvw, 2.5rem);
    backdrop-filter: blur(16px);
  }

  .tablist {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin-block-end: 1.75rem;
  }

  .tab-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    min-block-size: 2.75rem;
    padding-block: 0.5rem;
    padding-inline: 1.05rem;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border-subtle);
    background: var(--bg-elevated);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
  }

  .tab-btn:hover {
    border-color: var(--border-strong);
    color: var(--text-primary);
  }

  .tab-btn[aria-selected="true"] {
    background: linear-gradient(95deg, #c2410c 0%, #db2777 55%, #7c3aed 100%);
    color: #ffffff;
    border-color: transparent;
  }

  .tabpanel-grid {
    display: grid;
    gap: 1.75rem;
    align-items: center;
  }

  @media (min-width: 54rem) {
    .tabpanel-grid {
      grid-template-columns: 1.1fr 0.9fr;
    }
  }

  .tabpanel-title {
    font-size: clamp(1.35rem, 1.05rem + 1.2dvw, 1.85rem);
    font-weight: 800;
    margin-block-end: 0.75rem;
  }

  .tabpanel-bullets {
    display: grid;
    gap: 0.6rem;
    margin-block: 1.1rem 0;
  }

  .tabpanel-bullets li {
    display: flex;
    align-items: flex-start;
    gap: 0.55rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
  }

  .check-mark {
    color: var(--brand-orange);
    font-weight: 800;
    flex-shrink: 0;
  }

  .usecase-mock {
    padding: 1.35rem;
    border-radius: var(--radius-lg);
    background: var(--bg-surface);
    border: 1px solid var(--border-strong);
  }

  .mock-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-block-end: 0.9rem;
    padding-block-end: 0.65rem;
    border-block-end: 1px solid var(--border-subtle);
  }

  .mock-quote {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-block-end: 0.85rem;
  }

  /* Dedication Vibes Showcase */
  .vibes-strip {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 12.5rem), 1fr));
    margin-block-start: 2rem;
  }

  .vibe-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.35rem 1rem;
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
  }

  .vibe-artwork {
    inline-size: 5rem;
    block-size: 5rem;
    border-radius: 1.15rem;
    object-fit: cover;
    margin-block-end: 0.85rem;
    background: #ffffff;
    padding: 0.25rem;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.16);
  }

  .vibe-name {
    font-size: 1rem;
    font-weight: 800;
    margin-block-end: 0.25rem;
  }

  .vibe-desc {
    font-size: 0.84rem;
    color: var(--text-muted);
  }

  /* Steps */
  .steps-grid {
    display: grid;
    gap: 1.25rem;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
  }

  .step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    inline-size: 2.25rem;
    block-size: 2.25rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--brand-orange), var(--brand-pink));
    color: #ffffff;
    font-weight: 800;
    font-size: 0.95rem;
    margin-block-end: 0.9rem;
  }

  /* Download Banner & FAQ */
  .download-banner {
    display: grid;
    gap: 2rem;
    align-items: center;
    padding: clamp(1.75rem, 4dvw, 3rem);
    border-radius: 2rem;
    background:
      radial-gradient(circle at 85% 20%, rgba(236, 72, 153, 0.2), transparent 55%),
      radial-gradient(circle at 15% 85%, rgba(251, 140, 0, 0.16), transparent 55%),
      var(--bg-card);
    border: 1px solid var(--border-strong);
    box-shadow: var(--shadow-card);
  }

  @media (min-width: 52rem) {
    .download-banner {
      grid-template-columns: 1.2fr 0.8fr;
    }
  }

  .download-lead {
    margin-inline: 0;
  }

  .dialog-copy {
    margin-block-end: 1.15rem;
  }

  .dialog-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: flex-end;
  }

  .dialog-done-btn {
    inline-size: 100%;
  }

  .footer-tagline {
    margin-block-start: 0.75rem;
    max-inline-size: 38ch;
    font-size: 0.92rem;
  }

  .download-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
  }

  .faq-list {
    max-inline-size: 48rem;
    margin-inline: auto;
    display: grid;
    gap: 0.85rem;
  }

  .faq-item {
    border-radius: var(--radius-md);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    padding-inline: 1.25rem;
    transition: border-color 0.18s ease;
  }

  .faq-item[open] {
    border-color: var(--border-strong);
  }

  .faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-block-size: 3.4rem;
    padding-block: 0.85rem;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    list-style: none;
  }

  .faq-item summary::-webkit-details-marker {
    display: none;
  }

  .faq-item summary::after {
    content: "+";
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--brand-pink);
    flex-shrink: 0;
    transition: transform 0.2s ease;
  }

  .faq-item[open] summary::after {
    transform: rotate(45deg);
  }

  .faq-answer {
    padding-block-end: 1.15rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
  }

  /* Native Modal Dialog */
  dialog.nh-dialog {
    max-inline-size: min(92dvw, 28rem);
    margin: auto;
    padding: 1.75rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-strong);
    background: var(--bg-card-solid);
    color: var(--text-primary);
    box-shadow: var(--shadow-card);
  }

  dialog.nh-dialog::backdrop {
    background: rgba(6, 6, 18, 0.72);
    backdrop-filter: blur(6px);
  }

  .dialog-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-block-end: 0.85rem;
  }

  .dialog-title {
    font-size: 1.25rem;
    font-weight: 800;
  }

  .dialog-nav-links {
    display: grid;
    gap: 0.45rem;
    margin-block: 1rem 1.25rem;
  }

  .dialog-nav-links a {
    display: flex;
    align-items: center;
    min-block-size: 2.75rem;
    padding-inline: 0.85rem;
    border-radius: var(--radius-sm);
    font-weight: 700;
    background: var(--bg-elevated);
  }

  /* Footer */
  .site-footer {
    border-block-start: 1px solid var(--border-subtle);
    padding-block: 2.75rem 3.5rem;
    background: var(--bg-surface);
  }

  .footer-grid {
    display: grid;
    gap: 2rem;
    margin-block-end: 2rem;
  }

  @media (min-width: 48rem) {
    .footer-grid {
      grid-template-columns: 1.4fr 1fr 1fr;
    }
  }

  .footer-heading {
    font-size: 0.85rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-block-end: 0.75rem;
  }

  .footer-links {
    display: grid;
    gap: 0.45rem;
  }

  .footer-links a {
    display: inline-flex;
    align-items: center;
    min-block-size: 2.25rem;
    font-size: 0.92rem;
    color: var(--text-secondary);
  }

  .footer-links a:hover {
    color: var(--brand-pink);
  }

  .footer-bottom {
    padding-block-start: 1.5rem;
    border-block-start: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    font-size: 0.84rem;
    color: var(--text-muted);
  }

  .yt-link {
    text-decoration: underline;
    color: var(--text-secondary);
  }

  /* Progressive scroll-driven entry animations */
  @media (prefers-reduced-motion: no-preference) {
    @supports ((animation-timeline: view()) and (animation-range: entry)) {
      @keyframes nh-reveal-in {
        from {
          opacity: 0;
          transform: translateY(22px);
        }
        to {
          opacity: 1;
          transform: translateY(0);
        }
      }

      .reveal-on-scroll {
        animation: nh-reveal-in linear backwards;
        animation-timeline: view();
        animation-range: entry 0% entry 85%;
      }
    }
  }

  .reveal-fallback-hidden {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.45s ease-out, transform 0.45s ease-out;
  }

  .reveal-fallback-visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* Forced Colors Mode support */
  @media (forced-colors: active) {
    .glass-card,
    .hero-stage,
    .use-cases-shell,
    .download-banner,
    .faq-item,
    .btn,
    .icon-btn,
    .tab-btn {
      border: 1px solid ButtonBorder;
    }

    .brand-wordmark,
    .gradient-text {
      -webkit-text-fill-color: CanvasText;
      background: none;
    }
  }
}

@layer utilities {
  .visually-hidden:where(:not(:focus-within, :active)) {
    position: absolute !important;
    clip-path: inset(50%) !important;
    overflow: hidden !important;
    width: 1px !important;
    height: 1px !important;
    margin: -1px !important;
    padding: 0 !important;
    border: 0 !important;
    white-space: nowrap !important;
  }
}