/* ============================================================================
   RELATIONSHIP REFEREE - STYLESHEET
   Modern, mobile-first CSS with layers and semantic tokens
   ============================================================================ */

/* ===== CSS LAYERS ===== */
/* Define cascade layers for better control and maintainability */
@layer reset, tokens, base, layout, components, utilities, states, overrides;

/* ============================================================================
   LAYER: TOKENS (CSS Custom Properties)
   ============================================================================ */
@layer tokens {
  :root {
    /* ===== COLOR PALETTE ===== */
    /* Primary Colors */
    --color-primary-500: #6c63ff;
    --color-primary-600: #5750d8;
    --color-primary-50: rgba(108, 99, 255, 0.1);
    --color-primary-100: rgba(108, 99, 255, 0.12);
    --color-primary-200: rgba(108, 99, 255, 0.15);
    --color-primary-300: rgba(108, 99, 255, 0.2);
    --color-primary-400: rgba(108, 99, 255, 0.3);

    /* Neutral Colors */
    --color-neutral-900: #1a1a1a;
    --color-neutral-800: #333333;
    --color-neutral-700: #767676;
    --color-neutral-600: #6b7280;
    --color-neutral-500: #888;
    --color-neutral-400: #a5a5a5;
    --color-neutral-300: #b0b0b0;
    --color-neutral-200: #eaeaea;
    --color-neutral-150: #f3f4f6;
    --color-neutral-100: #f8f9ff;
    --color-neutral-50: #ffffff;

    /* Semantic Colors */
    --color-success: #019663;
    --color-success-bg: #eefcf6;
    --color-error: #dc2626;

    /* Surface Colors */
    --color-surface: var(--color-neutral-50);
    --color-surface-alt: #f2f1ff;
    --color-surface-elevated: var(--color-neutral-50);
    --color-surface-overlay: rgba(35, 35, 47, 0.5);

    /* Background Colors */
    --color-bg-page: var(--color-surface-alt);
    --color-bg-policy: var(--color-neutral-100);
    --color-bg-footer: #1a1a2e;

    /* Text Colors */
    --color-text-primary: var(--color-neutral-800);
    --color-text-secondary: var(--color-neutral-700);
    --color-text-tertiary: var(--color-neutral-600);
    --color-text-inverse: var(--color-neutral-50);

    /* Border Colors */
    --color-border: var(--color-neutral-200);
    --color-border-light: var(--color-neutral-150);

    /* Shadow Colors */
    --shadow-sm: rgba(0, 0, 0, 0.1);
    --shadow-md: rgba(0, 0, 0, 0.15);
    --shadow-lg: rgba(0, 0, 0, 0.2);
    --shadow-xl: rgba(0, 0, 0, 0.3);

    /* ===== SPACING SCALE ===== */
    --space-1: 0.25rem; /* 4px */
    --space-2: 0.5rem; /* 8px */
    --space-3: 0.75rem; /* 12px */
    --space-4: 1rem; /* 16px */
    --space-5: 1.25rem; /* 20px */
    --space-6: 1.5rem; /* 24px */
    --space-8: 2rem; /* 32px */
    --space-10: 2.5rem; /* 40px */
    --space-12: 3rem; /* 48px */
    --space-16: 4rem; /* 64px */
    --space-20: 5rem; /* 80px */

    /* Semantic Spacing */
    --space-section: var(--space-10);
    --space-container: var(--space-4);

    /* ===== TYPOGRAPHY ===== */
    /* Font Families */
    --font-primary: "Montserrat", "Inter", -apple-system, BlinkMacSystemFont,
      sans-serif;
    --font-mono: "SF Mono", Monaco, "Cascadia Code", monospace;

    /* Font Sizes - Fluid Scale */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.825rem + 0.25vw, 1rem);
    --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1.05rem + 0.375vw, 1.25rem);
    --text-xl: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
    --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.5rem);
    --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3rem);
    --text-5xl: clamp(2.5rem, 2rem + 2.5vw, 3.5rem);
    --text-hero: clamp(2rem, 1rem + 5vw, 4.5rem);

    /* Line Heights */
    --leading-none: 1;
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    --leading-loose: 1.75;

    /* Font Weights */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;

    /* ===== BORDER RADIUS ===== */
    --radius-sm: 0.25rem; /* 4px */
    --radius-md: 0.5rem; /* 8px */
    --radius-lg: 0.75rem; /* 12px */
    --radius-xl: 1.5625rem; /* 25px */
    --radius-full: 9999px;

    /* ===== LAYOUT ===== */
    --width-content: 800px;
    --width-max: 1024px;
    --width-wide: 1400px;

    /* ===== Z-INDEX SCALE ===== */
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 1100;
    --z-tooltip: 1200;

    /* ===== TRANSITIONS ===== */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

    /* ===== SHADOWS ===== */
    --shadow-xs: 0 1px 2px var(--shadow-sm);
    --shadow-base: 0 2px 8px var(--shadow-sm);
    --shadow-elevated: 0 4px 16px var(--shadow-sm);
    --shadow-large: 0 10px 40px var(--shadow-sm);
    --shadow-xl: 0 20px 60px var(--shadow-md);

    /* ===== ANIMATION DURATIONS ===== */
    --duration-instant: 0.01ms;
    --duration-fast: 150ms;
    --duration-base: 300ms;
    --duration-slow: 500ms;
  }

  /* Reduced Motion Preferences */
  @media (prefers-reduced-motion: reduce) {
    :root {
      --transition-fast: var(--duration-instant);
      --transition-base: var(--duration-instant);
      --transition-slow: var(--duration-instant);
    }
  }

  /* Reduced Data Preferences */
  @media (prefers-reduced-data: reduce) {
    :root {
      --transition-fast: var(--duration-instant);
      --transition-base: var(--duration-instant);
      --transition-slow: var(--duration-instant);
    }
  }
}

/* ============================================================================
   LAYER: RESET
   ============================================================================ */
@layer reset {
  /* Modern CSS Reset */
  *,
  *::before,
  *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

  /* Remove default list styling */
  ul[role="list"],
  ol[role="list"] {
    list-style: none;
  }

  /* Smooth scrolling */
  html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
  }

  @media (prefers-reduced-motion: reduce) {
    html {
      scroll-behavior: auto;
    }
  }

  /* Body defaults */
  body {
    min-height: 100vh;
    min-height: 100dvh;
    text-rendering: optimizeSpeed;
    line-height: var(--leading-relaxed);
  }

  /* Images */
  img,
  picture,
  video,
  canvas,
  svg {
    display: block;
    max-width: 100%;
    height: auto;
  }

  /* Form elements */
  input,
  button,
  textarea,
  select {
    font: inherit;
  }

  /* Remove animations for reduced motion */
  @media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
      animation-duration: var(--duration-instant) !important;
      animation-iteration-count: 1 !important;
      transition-duration: var(--duration-instant) !important;
      scroll-behavior: auto !important;
    }
  }
}

/* ============================================================================
   LAYER: BASE
   ============================================================================ */
@layer base {
  /* Body */
  body {
    font-family: var(--font-primary);
    color: var(--color-text-primary);
    background-color: var(--color-bg-page);
    font-size: var(--text-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    max-width: 100vw;

    /* Safe area insets for notched devices */
    padding-inline-start: env(safe-area-inset-left);
    padding-inline-end: env(safe-area-inset-right);
    padding-block-start: env(safe-area-inset-top);
    padding-block-end: env(safe-area-inset-bottom);
  }

  /* iOS Safari bottom bar fix */
  @supports (-webkit-touch-callout: none) {
    body {
      min-height: -webkit-fill-available;
    }
  }

  /* Focus Styles */
  *:focus {
    outline: none;
  }

  *:focus-visible {
    outline: 3px solid var(--color-primary-500);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
    transition: outline-offset var(--transition-fast);
  }

  a:focus-visible,
  button:focus-visible {
    outline: 3px solid var(--color-primary-500);
    outline-offset: 4px;
    box-shadow: 0 0 0 6px var(--color-primary-50);
  }

  /* Typography */
  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    letter-spacing: -0.025em;
  }

  h1 {
    font-size: var(--text-hero);
  }
  h2 {
    font-size: var(--text-4xl);
  }
  h3 {
    font-size: var(--text-3xl);
  }
  h4 {
    font-size: var(--text-2xl);
  }
  h5 {
    font-size: var(--text-xl);
  }
  h6 {
    font-size: var(--text-lg);
  }

  p {
    line-height: var(--leading-relaxed);
  }

  a {
    color: var(--color-primary-500);
    text-decoration: none;
    transition: color var(--transition-fast);
  }

  a:hover {
    color: var(--color-primary-600);
  }

  /* Buttons */
  button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
  }

  /* Address */
  address {
    font-style: normal;
    line-height: var(--leading-loose);
  }
}

/* ============================================================================
   LAYER: LAYOUT
   ============================================================================ */
@layer layout {
  /* Page Container */
  .page-container {
    width: 100%;
    max-width: 100%;
    background-color: var(--color-bg-page);
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    container-type: inline-size;
    container-name: main;
  }

  /* Policy Pages - Background Override */
  .policy-page .page-container {
    background-color: var(--color-bg-policy);
  }

  .policy-page .main {
    max-width: var(--width-content);
    margin-inline: auto;
    flex: 1;
  }

  /* Container */
  .container {
    width: 100%;
    max-width: 100%;
    margin-inline: auto;
    padding-inline: var(--space-container);
    flex: 1;
    display: flex;
    flex-direction: column;
  }

  /* Content Wrapper / Main */
  .content-wrapper,
  .main {
    max-width: var(--width-content);
    margin-inline: auto;
    flex: 1;
  }

  /* Skip to Main Content (Accessibility) */
  .skip-to-main {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--color-primary-500);
    color: var(--color-text-inverse);
    padding: var(--space-4);
    text-decoration: none;
    z-index: 9999;
    transition: top var(--transition-fast);
  }

  .skip-to-main:focus {
    top: 0;
  }
}

/* ============================================================================
   LAYER: COMPONENTS
   ============================================================================ */
@layer components {
  /* ===== NAVIGATION ===== */
  .navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-3) var(--space-6);
    background-color: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    width: calc(100% - 2 * var(--space-6));
    max-width: var(--width-wide);
    margin-inline: auto;
    margin-block-end: var(--space-section);
    box-shadow: var(--shadow-base);
    position: sticky;
    top: var(--space-4);
    z-index: var(--z-sticky);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    user-select: none;
    touch-action: manipulation;
  }

  /* Navbar - Mobile */
  @media (max-width: 63.99875em) {
    /* < 1024px */
    .navbar {
      width: 100%;
      padding: var(--space-2) var(--space-6);
      border-radius: 0;
      margin-block-end: var(--space-section);
      top: 0;
    }
  }

  .navbar .logo-container {
    display: flex;
    align-items: center;
    gap: var(--space-2);
  }

  .navbar .logo {
    width: auto;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: var(--font-bold);
    color: var(--color-text-inverse);
    font-size: var(--text-base);
  }

  /* ===== BUTTONS ===== */
  .btn {
    background-color: var(--color-primary-500);
    color: var(--color-text-inverse);
    padding: var(--space-3) var(--space-6);
    min-height: 44px;
    min-width: 44px;
    text-decoration: none;
    font-weight: var(--font-semibold);
    border: none;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    box-shadow: 0 2px 8px var(--color-primary-300);
    font-size: var(--text-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: var(--color-primary-300);
    touch-action: manipulation;
    user-select: none;
    cursor: pointer;
  }

  .btn:hover {
    background-color: var(--color-primary-600);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--color-primary-400);
  }

  .btn:active {
    transform: translateY(0);
  }

  .btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
  }

  /* ===== HERO SECTION ===== */
  .hero-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    align-items: center;
    text-align: center;
    max-width: var(--width-max);
    margin-inline: auto;
    margin-block-end: var(--space-section);
    padding: var(--space-6) var(--space-container);
    animation: fadeInUp 0.8s ease-out;
  }

  .hero-title {
    font-size: var(--text-hero);
    font-weight: var(--font-extrabold);
    background: linear-gradient(45deg, #000000, var(--color-neutral-400));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: -0.03125rem;
    line-height: var(--leading-tight);
    padding-block-end: var(--space-6);
    margin: 0;
  }

  .hero-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    max-width: 48.4375rem;
    margin-inline: auto;
    margin-block-end: var(--space-12);
    line-height: var(--leading-relaxed);
  }

  .hero-form {
    display: block;
    width: 100%;
    max-width: 25rem;
    margin-inline: auto;
  }

  .hero-form input {
    flex: 1;
    padding: var(--space-4);
    font-size: var(--text-base);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
  }

  .hero-form input:focus {
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 3px var(--color-primary-50);
  }

  .hero-form button {
    padding: var(--space-4) var(--space-6);
    background-color: var(--color-primary-500);
    color: var(--color-text-inverse);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: var(--text-base);
    box-shadow: 0 4px 12px var(--color-primary-400);
  }

  .hero-form button:hover {
    background-color: var(--color-primary-600);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px var(--color-primary-400);
  }

  #first-100-container {
    position: relative;
    display: flex;
  }

  #first-100-free {
    position: absolute;
    width: 300px;
    left: 40px;
    top: -52px;
  }

  /* Mobile - Hide promotional badge */
  @media (max-width: 63.99875em) {
    /* < 1024px */
    #first-100-free {
      display: none;
    }
  }

  /* Small Mobile - Show smaller badge */
  @media (max-width: 26.5625em) {
    /* <= 425px */
    #first-100-free {
      display: block;
      position: absolute;
      width: 175px;
      left: 50%;
      top: -50px;
      transform: translateX(-50%) rotateZ(16deg);
    }
  }

  #free-subtitle {
    color: var(--color-primary-500);
    font-weight: var(--font-semibold);
    position: relative;
    top: 5px;
  }

  .hero-video {
    width: 100%;
    max-width: 50rem;
    margin-block-start: var(--space-8);
    animation: fadeInUp 0.8s ease-out 0.3s both;
  }

  .hero-video img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    transition: all var(--transition-base);
  }

  @media (hover: hover) {
    .hero-video img:hover {
      transform: translateY(-4px);
      box-shadow: 0 24px 80px var(--shadow-lg);
    }
  }

  /* ===== SECTIONS ===== */
  .section {
    padding-block: var(--space-section);
  }

  .section-title {
    text-align: center;
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    margin-block-end: var(--space-4);
    background: linear-gradient(45deg, #000000, var(--color-neutral-400));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: -0.03125rem;
    line-height: var(--leading-tight);
  }

  .subtitle {
    text-align: center;
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    margin-block-end: var(--space-8);
    max-width: 48.4375rem;
    margin-inline: auto;
    line-height: var(--leading-relaxed);
  }

  /* ===== PROBLEM SECTION ===== */
  .problem-section {
    padding: var(--space-12);
    max-width: var(--width-max);
    margin-inline: auto;
    margin-block-end: var(--space-section);
    background-color: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-large);
  }

  @media (max-width: 26.5625em) {
    /* <= 425px */
    .problem-section {
      padding: var(--space-6);
    }
  }

  .problem-subtitle {
    text-align: center;
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    margin-block-end: var(--space-8);
    max-width: 48.4375rem;
    margin-inline: auto;
    line-height: var(--leading-relaxed);
  }

  .stats-container {
    display: flex;
    justify-content: center;
    gap: var(--space-6);
    flex-wrap: wrap;
  }

  .stat {
    text-align: center;
    flex: 1;
    min-width: 150px;
    padding: var(--space-6);
    transition: transform var(--transition-base);
  }

  @media (hover: hover) {
    .stat:hover {
      transform: translateY(-4px);
    }
  }

  .stat-number {
    font-size: var(--text-5xl);
    font-weight: var(--font-bold);
    color: var(--color-primary-500);
    margin-block-end: var(--space-2);
    line-height: var(--leading-tight);
  }

  .stat-title {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    margin-block-end: var(--space-2);
    background: linear-gradient(45deg, #000000, var(--color-neutral-400));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: -0.03125rem;
    line-height: var(--leading-tight);
  }

  .stat-description {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    max-width: 300px;
    margin-inline: auto;
    line-height: var(--leading-relaxed);
  }

  .stats-source {
    text-align: center;
    margin-block-start: var(--space-8);
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
  }

  .stats-source a,
  .stats-source-link {
    color: var(--color-primary-500);
    transition: color var(--transition-fast);
  }

  .stats-source a:hover,
  .stats-source-link:hover {
    text-decoration: underline;
  }

  /* Tablet/Desktop - Change stats layout */
  @media (max-width: 63.99875em) {
    /* < 1024px */
    .stats-container {
      flex-direction: column;
      align-items: stretch;
    }

    .stat {
      min-width: 100%;
    }
  }

  /* ===== WHY SECTION ===== */
  .why-section {
    padding: var(--space-6);
    max-width: 100%;
    background: var(--color-surface);
    padding-block: var(--space-20);
  }

  .why-content {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: var(--space-6);
    flex-wrap: wrap;
  }

  .why-card {
    background-color: var(--color-surface-alt);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    flex: 1;
    max-width: 300px;
    transition: all var(--transition-base);
    border: 1px solid var(--color-border-light);
  }

  @media (hover: hover) {
    .why-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 32px var(--shadow-sm);
      background-color: var(--color-surface);
    }
  }

  .why-card .icon-wrapper {
    display: block;
    margin-block-end: var(--space-4);
    font-size: var(--text-2xl);
  }

  .why-card h3 {
    font-size: var(--text-xl);
    margin-block-end: var(--space-2);
    text-align: left;
    font-weight: var(--font-semibold);
  }

  .why-card p {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    text-align: left;
    line-height: var(--leading-relaxed);
  }

  .why-image img {
    width: 300px;
    height: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: transform var(--transition-base);
  }

  @media (hover: hover) {
    .why-image img:hover {
      transform: scale(1.02);
      box-shadow: 0 12px 32px var(--shadow-sm);
    }
  }

  /* Container Query for Why Section */
  @container main (min-width: 768px) {
    .why-card,
    .why-image img {
      max-width: 300px;
      border: 10px solid var(--color-surface-alt);
      border-radius: var(--radius-xl);
    }
  }

  /* Mobile - Stack cards */
  @media (max-width: 63.99875em) {
    /* < 1024px */
    .why-content {
      flex-direction: column;
    }

    .why-card {
      max-width: 100%;
    }

    .why-image img {
      max-width: 100%;
      width: 100%;
    }
  }

  /* ===== VALUE PROP SECTIONS ===== */
  .value-prop-section {
    padding: var(--space-6);
    max-width: var(--width-max);
    margin-inline: auto;
    margin-block-end: var(--space-section);
  }

  .value-prop {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--space-8);
  }

  .value-prop.reverse {
    flex-direction: row-reverse;
  }

  .value-prop-image {
    width: 50%;
  }

  .value-prop-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
    box-shadow: 0 8px 24px var(--shadow-sm);
  }

  @media (hover: hover) {
    .value-prop-image img:hover {
      transform: scale(1.02);
      box-shadow: 0 12px 36px var(--shadow-md);
    }
  }

  .value-prop-content {
    text-align: left;
    max-width: 50%;
    padding: var(--space-12);
  }

  .value-prop-content h3 {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    margin-block-end: var(--space-4);
    background: linear-gradient(45deg, #000000, var(--color-neutral-400));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: -0.03125rem;
    line-height: var(--leading-tight);
  }

  .value-prop-content p {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    margin-block-end: var(--space-4);
    line-height: var(--leading-relaxed);
  }

  /* Mobile/Tablet - Stack value props */
  @media (max-width: 63.99875em) {
    /* < 1024px */
    .value-prop,
    .value-prop.reverse {
      flex-direction: column;
    }

    .value-prop-image {
      width: 100%;
    }

    .value-prop-content {
      max-width: 100%;
      padding: var(--space-6);
      text-align: left;
    }

    .value-prop-content h3 {
      font-size: var(--text-2xl);
    }
  }

  /* Container Query */
  @container main (max-width: 480px) {
    .value-prop,
    .value-prop.reverse {
      flex-direction: column;
    }

    .value-prop-image {
      width: 100%;
    }

    .value-prop-content {
      text-align: left;
      max-width: 100%;
      padding: 0;
    }
  }

  /* Small Mobile - Smaller headings */
  @media (max-width: 26.5625em) {
    /* <= 425px */
    .value-prop-content h3 {
      font-size: var(--text-xl);
    }
  }

  /* Tablet Portrait */
  @media (min-width: 48em) and (max-width: 52.125em) {
    /* 768px - 834px */
    .value-prop,
    .value-prop.reverse {
      flex-direction: column;
    }

    .value-prop-image {
      width: 100%;
      max-width: 600px;
      margin-inline: auto;
    }

    .value-prop-content {
      max-width: 100%;
      text-align: center;
    }
  }

  /* ===== SUPPORT SECTION ===== */
  .support-section {
    padding: var(--space-6);
    max-width: var(--width-max);
    margin-inline: auto;
    margin-block-end: var(--space-section);
    border-radius: var(--radius-lg);
    text-align: center;
  }

  .support-cards {
    display: flex;
    flex-direction: row;
    gap: var(--space-6);
    justify-content: center;
    flex-wrap: wrap;
  }

  .support-card {
    background-color: var(--color-surface);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 16px var(--shadow-sm);
    flex: 1;
    max-width: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: all var(--transition-base);
    border: 1px solid var(--color-border-light);
  }

  @media (hover: hover) {
    .support-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 8px 24px var(--shadow-md);
    }
  }

  .support-card .icon-placeholder {
    font-size: var(--text-3xl);
    margin-block-end: var(--space-4);
    color: var(--color-primary-500);
  }

  .support-card .support-card-title {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    margin-block-end: var(--space-2);
  }

  .support-card p {
    font-size: var(--text-base);
    margin: 0;
    color: var(--color-text-primary);
    line-height: var(--leading-relaxed);
  }

  /* ===== BUILD SECTION ===== */
  .build-section {
    padding: var(--space-12);
    max-width: var(--width-max);
    margin-inline: auto;
    margin-block-end: var(--space-section);
    background-color: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-large);
  }

  @media (max-width: 26.5625em) {
    /* <= 425px */
    .build-section {
      padding: var(--space-6);
    }
  }

  .build-section p {
    font-size: var(--text-base);
    color: var(--color-text-primary);
    max-width: 50rem;
    margin-inline: auto;
    text-align: center;
    line-height: var(--leading-relaxed);
  }

  /* ===== SIGNUP SECTION ===== */
  .signup-section {
    padding: var(--space-6);
    max-width: 100%;
    background: var(--color-surface);
    padding-block: var(--space-20);
  }

  .signup-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    max-width: 25rem;
    margin-inline: auto;
  }

  .signup-form input {
    padding: var(--space-4);
    font-size: var(--text-base);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
  }

  .signup-form input:focus {
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 3px var(--color-primary-50);
  }

  .signup-form button {
    padding: var(--space-4);
    background-color: var(--color-primary-500);
    color: var(--color-text-inverse);
    border: none;
    font-weight: var(--font-semibold);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: var(--text-base);
    box-shadow: 0 4px 12px var(--color-primary-400);
  }

  .signup-form button:hover {
    background-color: var(--color-primary-600);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px var(--color-primary-400);
  }

  .signup-form button:active {
    transform: translateY(0);
  }

  #signup .signup-form {
    margin-block-end: var(--space-12);
  }

  .signup-hero-image {
    width: 100%;
    max-width: 37.5rem;
    margin-inline: auto;
    margin-block-end: var(--space-6);
  }

  .signup-hero-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-large);
  }

  #bold-offer {
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
  }

  /* ===== FOOTER ===== */
  .footer {
    background-color: var(--color-bg-footer);
    color: var(--color-text-inverse);
    padding: var(--space-8);
    margin-block-start: auto;
    width: 100%;
  }

  .footer-content {
    max-width: var(--width-max);
    margin-inline: auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    margin-block-end: var(--space-12);
  }

  .footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
    max-width: 25rem;
  }

  .footer-logo-section {
    display: flex;
    align-items: center;
    gap: var(--space-6);
  }

  .footer-logo {
    width: auto;
    height: 56px;
    max-width: 200px;
    object-fit: contain;
    filter: brightness(0) invert(1);
    flex-shrink: 0;
  }

  .footer-brand-text {
    flex: 1;
  }

  .footer-brand-name {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--color-text-inverse);
    margin: 0 0 var(--space-2) 0;
    line-height: var(--leading-tight);
  }

  .footer-tagline {
    color: var(--color-neutral-300);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    margin: 0;
    max-width: none;
  }

  .footer-social-section {
    display: flex;
    align-items: center;
    gap: var(--space-4);
  }

  .footer-social-label {
    color: var(--color-neutral-500);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    text-transform: uppercase;
    letter-spacing: 0.03125rem;
  }

  .footer-section h4 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    margin-block-end: var(--space-4);
    color: var(--color-text-inverse);
  }

  .footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
  }

  .footer-links li {
    margin-block-end: var(--space-2);
  }

  .footer-links a {
    color: var(--color-neutral-300);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
  }

  .footer-links a:hover {
    color: var(--color-text-inverse);
    text-decoration: underline;
  }

  .footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
  }

  .footer-copyright {
    font-size: var(--text-xs);
    color: var(--color-neutral-500);
  }

  .footer-legal {
    display: flex;
    gap: var(--space-6);
  }

  .footer-legal a {
    color: var(--color-neutral-500);
    text-decoration: none;
    font-size: var(--text-xs);
    transition: color var(--transition-fast);
    padding: var(--space-2);
    display: inline-flex;
    align-items: center;
    min-height: 44px;
  }

  .footer-legal a:hover {
    color: var(--color-text-inverse);
    text-decoration: underline;
  }

  .footer-social {
    display: flex;
    gap: var(--space-4);
  }

  .footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background-color: var(--color-neutral-800);
    border-radius: 50%;
    color: var(--color-neutral-300);
    text-decoration: none;
    transition: all var(--transition-base);
  }

  @media (hover: hover) {
    .footer-social a:hover {
      background-color: var(--color-primary-500);
      color: var(--color-text-inverse);
      transform: translateY(-2px);
    }
  }

  /* Mobile Footer */
  @media (max-width: 26.5625em) {
    /* <= 425px */
    .footer-content {
      grid-template-columns: 1fr;
      gap: var(--space-8);
      text-align: center;
    }

    .footer-bottom {
      flex-direction: column;
      text-align: center;
      gap: var(--space-6);
    }

    .footer-social {
      justify-content: center;
    }
  }

  /* ===== MODAL ===== */
  #waitlist-overlay {
    visibility: hidden;
    opacity: 0;
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    background: var(--color-surface-overlay);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.28s ease, visibility 0.28s ease;
  }

  #waitlist-overlay.active {
    visibility: visible;
    opacity: 1;
  }

  .waitlist-modal {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: 0 20px 60px var(--shadow-xl);
    width: 100%;
    max-width: 26.5625rem;
    max-height: calc(100vh - 2rem);
    max-height: calc(100dvh - 2rem);
    padding: var(--space-12) var(--space-8);
    animation: modalDrop 0.24s ease;
    position: relative;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
  }

  @media (max-width: 26.5625em) {
    /* <= 425px */
    .waitlist-modal {
      margin: var(--space-4);
      padding: var(--space-8) var(--space-6);
      max-width: calc(100vw - 2 * var(--space-6));
      max-width: calc(100dvw - 2 * var(--space-6));
    }
  }

  #modal-title {
    font-size: var(--text-3xl);
    font-weight: var(--font-extrabold);
    background: linear-gradient(45deg, #000000, var(--color-neutral-400));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: -0.03125rem;
    line-height: var(--leading-tight);
    padding-block-end: var(--space-6);
    margin: 0;
  }

  @media (max-width: 26.5625em) {
    /* <= 425px */
    #modal-title {
      font-size: var(--text-2xl);
    }
  }

  #modal-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    max-width: 48.4375rem;
    margin-inline: auto;
    font-weight: var(--font-normal);
    line-height: var(--leading-relaxed);
  }

  @media (max-width: 26.5625em) {
    /* <= 425px */
    #modal-subtitle {
      font-size: var(--text-base);
    }
  }

  .modal-title-container {
    margin-block-end: var(--space-6);
  }

  .modal-logo {
    width: 200px;
    margin-block-end: var(--space-8);
  }

  @media (max-width: 26.5625em) {
    /* <= 425px */
    .modal-logo {
      width: 150px;
    }
  }

  .modal-close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    background: transparent;
    border: none;
    font-size: var(--text-xl);
    color: var(--color-text-tertiary);
    cursor: pointer;
    transition: all var(--transition-fast);
    border-radius: var(--radius-sm);
    padding: var(--space-2);
    min-width: 44px;
    min-height: 44px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: var(--color-primary-300);
    touch-action: manipulation;
  }

  .modal-close:hover,
  .modal-close:focus {
    color: var(--color-text-primary);
    background: var(--color-surface-alt);
  }

  .waitlist-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
  }

  .input-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
  }

  .form-label {
    font-size: var(--text-base);
    font-weight: var(--font-medium);
    color: var(--color-text-secondary);
    margin-block-end: var(--space-2);
  }

  .submit-btn:hover,
  .submit-btn:focus {
    background: var(--color-primary-600);
    box-shadow: 0 6px 20px var(--color-primary-400);
  }

  .form-success {
    color: var(--color-success);
    background: var(--color-success-bg);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    font-size: var(--text-base);
    text-align: center;
    margin-block-start: var(--space-6);
    font-weight: var(--font-medium);
    animation: fadeIn 0.3s;
  }

  /* ===== POLICY PAGES ===== */
  .policy-page .container {
    padding: var(--space-4);
  }

  .policy-page .header {
    text-align: center;
    margin-block-end: var(--space-8);
  }

  .policy-page .title {
    font-size: var(--text-3xl);
    font-weight: var(--font-extrabold);
    line-height: var(--leading-tight);
    margin-block-end: var(--space-4);
    background: linear-gradient(
      135deg,
      var(--color-neutral-900),
      var(--color-neutral-600)
    );
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: -0.025em;
  }

  .policy-page .content-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-large);
    border-radius: var(--radius-xl);
    padding: var(--space-8) var(--space-16);
    margin-block-end: var(--space-16);
    position: relative;
    overflow: hidden;
  }

  .policy-page .content-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(
      90deg,
      var(--color-primary-500),
      var(--color-primary-600)
    );
    opacity: 0.8;
  }

  .policy-page .toc {
    background: var(--color-primary-50);
    border: 1px solid var(--color-primary-200);
    border-radius: var(--radius-md);
    padding: var(--space-8);
    margin: var(--space-8) 0 0 0;
    position: sticky;
    top: var(--space-8);
    z-index: var(--z-dropdown);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }

  .policy-page .toc-title {
    margin: 0 0 var(--space-4);
    font-size: 1rem;
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary-500);
  }

  .policy-page .toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: var(--space-2);
  }

  .policy-page .toc-link {
    color: var(--color-text-primary);
    text-decoration: none;
    display: block;
    padding: var(--space-2) var(--space-4);
    border-radius: 6px;
    transition: all var(--transition-base);
    font-size: var(--text-sm);
    line-height: var(--leading-normal);
    position: relative;
  }

  .policy-page .toc-link:hover {
    background: var(--color-primary-100);
    color: var(--color-primary-500);
    transform: translateX(4px);
  }

  .policy-page .section {
    margin: 0;
    padding: var(--space-8) 0;
    border-bottom: 1px solid var(--color-border-light);
    scroll-margin-top: var(--space-8);
  }

  .policy-page .section:first-child {
    margin-top: 0;
    padding-top: 0;
  }

  .policy-page .section:last-child {
    border-bottom: none;
  }

  .policy-page .section-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    margin: 0 0 var(--space-4);
    color: var(--color-text-primary);
    line-height: var(--leading-tight);
    position: relative;
    padding-left: 0;
    text-align: left;
  }

  .policy-page .section-subtitle {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    margin: var(--space-8) 0 var(--space-4);
    color: var(--color-text-secondary);
  }

  .policy-page .section p {
    margin: var(--space-6) 0 0 0;
    line-height: var(--leading-relaxed);
    color: var(--color-text-primary);
    max-width: 65ch;
  }

  .policy-page .section ul {
    margin: var(--space-4) 0;
    padding-left: var(--space-6);
  }

  .policy-page .section li {
    margin: var(--space-2) 0;
    line-height: 1.7;
  }

  .policy-page .section a {
    color: var(--color-primary-500);
    text-decoration: none;
    font-weight: var(--font-medium);
    transition: color var(--transition-fast);
  }

  .policy-page .section a:hover {
    text-decoration: underline;
    color: var(--color-primary-600);
  }

  .policy-page .note {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
    font-style: italic;
    margin: var(--space-8) 0;
    padding: var(--space-6);
    background: var(--color-primary-50);
    border-left: 4px solid var(--color-primary-500);
    border-radius: 0 6px 6px 0;
    position: relative;
  }

  .policy-page .badge {
    background: var(--color-primary-50);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-style: normal;
  }

  /* Policy Pages - Tablet */
  @media (min-width: 48em) and (max-width: 63.99875em) {
    /* 768px - < 1024px */
    .policy-page .container {
      padding: var(--space-4);
    }

    .policy-page .title {
      font-size: 2rem;
    }

    .policy-page .content-card {
      padding: var(--space-6);
      margin: var(--space-4) 0;
      border-radius: var(--radius-lg);
    }

    .policy-page .toc {
      position: static;
      margin: var(--space-6) 0;
    }

    .policy-page .section-title {
      font-size: var(--text-xl);
    }

    .policy-page .section p {
      font-size: var(--text-sm);
    }

    .policy-page .toc-link {
      font-size: 0.8rem;
    }
  }

  /* Policy Pages - Mobile */
  @media (max-width: 30em) {
    /* <= 480px */
    .policy-page .container {
      padding: var(--space-2);
    }

    .policy-page .title {
      font-size: 1.5rem;
      line-height: 1.3;
    }

    .policy-page .content-card {
      padding: var(--space-4);
      margin: var(--space-2) 0;
      border-radius: var(--radius-md);
    }

    .policy-page .section {
      margin: 0;
      padding: var(--space-4) 0;
    }

    .policy-page .section-title {
      font-size: var(--text-lg);
    }

    .policy-page .section-subtitle {
      font-size: var(--text-base);
    }

    .policy-page .section p {
      font-size: 0.938rem;
      line-height: 1.6;
    }

    .policy-page .toc {
      padding: var(--space-4);
    }

    .policy-page .toc-title {
      font-size: 0.875rem;
    }

    .policy-page .toc-link {
      font-size: 0.813rem;
      padding: 8px var(--space-2);
      min-height: 44px;
      display: flex;
      align-items: center;
    }

    .policy-page .note {
      padding: var(--space-4);
      font-size: 0.813rem;
    }
  }

  /* ===== SENDGRID FORMS ===== */
  .sendgrid-container {
    overflow: auto;
    height: auto;
    width: 100%;
  }

  #send-grid-form {
    width: 100%;
    border: 0;
    height: 300px;
    position: relative;
    top: -20px;
  }

  .sendgrid-form {
    width: 100%;
    border: 0;
  }
}

/* ============================================================================
   LAYER: UTILITIES
   ============================================================================ */
@layer utilities {
  /* Icon Color */
  .icon-primary-color {
    color: var(--color-primary-500);
  }

  /* GTM Noscript */
  .gtm-noscript-iframe {
    display: none;
    visibility: hidden;
  }

  /* Text Utilities */
  .gradient-text {
    background: linear-gradient(45deg, #000000, var(--color-neutral-400));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: -0.03125rem;
    line-height: var(--leading-tight);
  }

  /* Visibility */
  .show-mobile {
    display: none !important;
  }

  @media (max-width: 48em) {
    /* <= 768px */
    .hide-mobile {
      display: none !important;
    }

    .show-mobile {
      display: block !important;
    }

    .full-width-mobile {
      width: 100% !important;
      max-width: 100% !important;
    }
  }

  /* Touch Target */
  .touch-target {
    min-width: 44px;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    touch-action: manipulation;
    user-select: none;
  }

  /* Prevent Zoom */
  .prevent-zoom {
    font-size: 16px !important;
  }

  /* No Wrap */
  .no-wrap-mobile {
    white-space: nowrap;
  }
}

/* ============================================================================
   LAYER: STATES
   ============================================================================ */
@layer states {
  /* Animations */
  @keyframes fadeInUp {
    from {
      opacity: 0;
      transform: translateY(20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  @keyframes fadeIn {
    from {
      opacity: 0;
    }
    to {
      opacity: 1;
    }
  }

  @keyframes modalDrop {
    from {
      transform: translateY(24px) scale(0.95);
      opacity: 0.5;
    }
    to {
      transform: translateY(0) scale(1);
      opacity: 1;
    }
  }

  /* Hover States - Only for devices with hover capability */
  @media (hover: none) and (pointer: coarse) {
    /* Remove transform hover effects on touch devices */
    .hero-video img:hover,
    .value-prop-image img:hover,
    .why-image img:hover {
      transform: none;
    }
  }

  /* Touch Device Optimizations */
  @media (hover: none) and (pointer: coarse) {
    /* Larger tap targets for touch */
    a,
    button,
    .btn {
      min-height: 44px;
      min-width: 44px;
    }

    /* Prevent text selection on UI elements */
    .navbar,
    button,
    .btn {
      -webkit-user-select: none;
      user-select: none;
    }
  }

  /* Loading State (can be used with JS) */
  .is-loading {
    opacity: 0.6;
    pointer-events: none;
    cursor: wait;
  }

  /* Focus Within (for form containers) */
  .input-group:focus-within {
    outline: 2px solid var(--color-primary-500);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
  }
}

/* ============================================================================
   LAYER: OVERRIDES
   ============================================================================ */
@layer overrides {
  /* Print Styles */
  @media print {
    .navbar,
    #waitlist-overlay,
    .footer,
    .policy-page .toc {
      display: none !important;
    }

    * {
      box-shadow: none !important;
      text-shadow: none !important;
    }

    body {
      background: white;
      color: black;
    }
  }

  /* iOS Specific Fixes */
  @supports (-webkit-touch-callout: none) {
    /* Prevent iOS zoom on input focus */
    input,
    textarea,
    select {
      font-size: 16px !important;
    }

    /* Fix iOS momentum scrolling */
    .waitlist-modal,
    .sendgrid-container {
      -webkit-overflow-scrolling: touch;
    }
  }

  /* High-DPI Display Optimizations */
  @media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    /* Ensure crisp text rendering on retina displays */
    body {
      -webkit-font-smoothing: subpixel-antialiased;
      -moz-osx-font-smoothing: auto;
    }

    /* Optimize border rendering */
    .content-card,
    .navbar,
    .waitlist-modal {
      border-width: 0.5px;
    }
  }

  /* Landscape Orientation on Mobile */
  @media (max-height: 31.25em) and (orientation: landscape) {
    /* < 500px height */
    .hero-section {
      padding: var(--space-4) var(--space-container);
    }

    .hero-title {
      font-size: 1.5rem;
      padding-block-end: var(--space-4);
    }

    .hero-subtitle {
      font-size: var(--text-sm);
      margin-block-end: var(--space-6);
    }

    #first-100-free {
      display: none;
    }

    .hero-video {
      margin-block-start: var(--space-6);
    }

    .waitlist-modal {
      max-height: calc(100vh - 1rem);
      max-height: calc(100dvh - 1rem);
      padding: var(--space-6);
    }

    .navbar {
      padding: var(--space-2) var(--space-6);
    }
  }

  /* Reduced Data Mode */
  @media (prefers-reduced-data: reduce) {
    /* Disable backdrop filters (expensive) */
    .navbar,
    .policy-page .toc,
    #waitlist-overlay {
      backdrop-filter: none;
      -webkit-backdrop-filter: none;
    }

    /* Reduce image quality requirements */
    img {
      image-rendering: auto;
    }
  }

  /* Mobile Performance - Hardware Acceleration */
  @media (max-width: 48em) {
    /* <= 768px */
    /* Faster animations on mobile */
    * {
      animation-duration: 0.2s !important;
    }

    /* Hardware acceleration for smooth scrolling */
    .hero-video img,
    .value-prop-image img,
    .why-image img,
    .modal-close,
    .navbar {
      transform: translateZ(0);
      -webkit-transform: translateZ(0);
      will-change: auto;
    }

    /* Optimize heavy gradients on mobile */
    .hero-title,
    #modal-title,
    .section-title,
    .stat-title {
      -webkit-backface-visibility: hidden;
      backface-visibility: hidden;
    }
  }

  /* Small Mobile Focus Improvements */
  @media (max-width: 48em) {
    /* <= 768px */
    *:focus-visible {
      outline-width: 2px;
      outline-offset: 2px;
    }

    a:focus-visible,
    button:focus-visible,
    .btn:focus-visible {
      outline-width: 2px;
      outline-offset: 3px;
    }
  }

  /* Nav CTA Button - Small Mobile */
  @media (max-width: 26.5625em) {
    /* <= 425px */
    #join-cta-nav {
      font-size: 0.813rem;
      padding: 10px var(--space-4);
      min-height: 44px;
    }
  }

  /* Hero Section - Mobile Improvements */
  @media (max-width: 26.5625em) {
    /* <= 425px */
    .hero-section {
      padding: var(--space-4) var(--space-container);
    }

    .hero-title {
      font-size: 1.875rem;
      padding-block-end: var(--space-4);
    }

    .hero-subtitle {
      font-size: var(--text-sm);
      margin-block-end: var(--space-8);
    }

    .hero-form {
      max-width: 100%;
    }

    .hero-form button,
    button,
    .btn {
      min-height: 44px;
      font-size: 0.938rem;
    }
  }

  /* Stats - Mobile */
  @media (max-width: 26.5625em) {
    /* <= 425px */
    .stat-number {
      font-size: var(--text-4xl);
    }

    .stat-title {
      font-size: var(--text-lg);
    }
  }

  /* Section Titles - Responsive */
  @media (max-width: 63.99875em) {
    /* < 1024px */
    .section-title,
    .problem-section h2 {
      font-size: var(--text-3xl);
    }
  }

  @media (max-width: 26.5625em) {
    /* <= 425px */
    .section-title,
    .problem-section h2 {
      font-size: var(--text-2xl);
    }
  }

  /* Medium Phones - Enhanced Readability */
  @media (min-width: 33.8125em) and (max-width: 47.9375em) {
    /* 541px - 767px */
    .hero-title {
      font-size: 2.25rem;
    }

    .section-title,
    .problem-section h2 {
      font-size: 2rem;
    }

    .value-prop-content h3 {
      font-size: 1.75rem;
    }
  }

  /* Extra Small Phones - Optimization */
  @media (max-width: 22.5em) {
    /* <= 360px */
    :root {
      --space-2: 0.375rem;
      --space-4: 0.75rem;
      --space-6: 1.125rem;
    }

    .navbar .btn {
      font-size: 0.75rem;
      padding: 10px 12px;
    }

    .hero-title {
      font-size: 1.5rem;
    }

    .hero-subtitle {
      font-size: 0.875rem;
    }

    .section-title,
    .problem-section h2 {
      font-size: 1.25rem;
    }

    .content-card {
      padding: var(--space-4);
    }
  }
}