/* ============================================
           DESIGN SYSTEM - NOTTALYS
           ============================================ */

        /* --------------------------------------------
           1. CSS RESET & BASE
           -------------------------------------------- */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        /* --------------------------------------------
           2. DESIGN TOKENS
           -------------------------------------------- */
        :root {
            /* Colors */
            --color-primary: #6b1f78;
            --color-primary-dark: #551964;
            --color-text-primary: #1a1a1a;
            --color-text-secondary: #666;
            --color-text-tertiary: #999;
            --color-border: #e0e0e0;
            --color-background: #ffffff;
            --color-background-alt: #f5f1eb;
            --color-white: #ffffff;
            
            /* Typography */
            --font-serif: 'Prata', serif;
            --font-sans: 'DM Sans', sans-serif;
            
            --font-size-xs: 11px;
            --font-size-sm: 12px;
            --font-size-base: 13px;
            --font-size-md: 14px;
            --font-size-lg: 18px;
            --font-size-xl: 28px;
            --font-size-2xl: 42px;
            --font-size-3xl: 48px;
            --font-size-4xl: 72px;
            
            --font-weight-light: 300;
            --font-weight-normal: 400;
            --font-weight-medium: 500;
            --font-weight-bold: 700;
            
            --line-height-tight: 1.1;
            --line-height-normal: 1.4;
            --line-height-relaxed: 1.6;
            --line-height-loose: 1.8;
            
            /* Spacing */
            --space-xs: 10px;
            --space-sm: 15px;
            --space-md: 20px;
            --space-lg: 30px;
            --space-xl: 40px;
            --space-2xl: 60px;
            --space-3xl: 80px;
            
            /* Border Radius */
            --radius-sm: 10px;
            --radius-md: 30px;
            --radius-lg: 50px;
            --radius-full: 50%;
            
            /* Shadows */
            --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
            --shadow-lg: 0 10px 25px rgba(107, 31, 120, 0.3);
            
            /* Transitions */
            --transition-fast: 0.3s ease;
            --transition-normal: 0.4s ease;
            --transition-slow: 0.8s ease-out;
            
            /* Layout */
            --container-max: 1200px;
            --container-wide: 1400px;
            
            /* Z-index */
            --z-base: 1;
            --z-dropdown: 100;
            --z-sticky: 999;
            --z-fixed: 1000;
            --z-modal: 1001;
        }

        /* --------------------------------------------
           3. TYPOGRAPHY
           -------------------------------------------- */
        body {
            font-family: var(--font-serif);
            color: var(--color-text-primary);
            line-height: var(--line-height-relaxed);
            background: var(--color-background);
        }

        h1, h2, h3, h4, h5, h6 {
            font-weight: var(--font-weight-normal);
            line-height: var(--line-height-tight);
        }

        h1 {
            font-size: var(--font-size-4xl);
        }

        h2 {
            font-size: var(--font-size-3xl);
        }

        h3 {
            font-size: var(--font-size-lg);
            font-weight: var(--font-weight-medium);
        }

        p {
            font-family: var(--font-sans);
            font-size: var(--font-size-md);
            line-height: var(--line-height-loose);
        }

        .text-secondary {
            color: var(--color-text-secondary);
        }

        .text-tertiary {
            color: var(--color-text-tertiary);
        }

        /* --------------------------------------------
           4. LAYOUT COMPONENTS
           -------------------------------------------- */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--space-md);
        }

        .section {
            padding: var(--space-3xl) var(--space-md);
        }

        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--space-2xl);
            align-items: center;
        }

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-2xl);
        }

        /* --------------------------------------------
           5. BUTTONS
           -------------------------------------------- */
        .btn {
            padding: var(--space-sm) var(--space-xl);
            border: none;
            border-radius: var(--radius-md);
            font-size: var(--font-size-md);
            font-family: var(--font-sans);
            cursor: pointer;
            transition: all var(--transition-fast);
            display: inline-block;
            text-decoration: none;
        }

        .btn-primary {
            background: var(--color-primary);
            color: var(--color-white);
        }

        .btn-primary:hover {
            background: var(--color-primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        /* --------------------------------------------
           6. NAVIGATION
           -------------------------------------------- */
        header {
            padding: var(--space-xl);
            background: transparent;
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: var(--container-wide);
            margin: 0 auto;
        }

        .logo {
            width: 120px;
            height: auto;
        }
        
        .logo svg {
            width: 100%;
            height: auto;
            display: block;
        }

        nav {
            position: fixed;
            top: var(--space-md);
            left: 50%;
            transform: translateX(-50%);
            z-index: var(--z-fixed);
        }

        .nav-glass {
            background: rgba(255, 255, 255, 0.7);
            backdrop-filter: blur(15px);
            -webkit-backdrop-filter: blur(15px);
            border-radius: var(--radius-lg);
            padding: var(--space-sm) var(--space-xl);
            /*box-shadow: var(--shadow-sm); */
            border: 1px solid rgba(255, 255, 255, 0.18);
        }

        nav ul {
            display: flex;
            gap: var(--space-xl);
            list-style: none;
            align-items: center;
        }

        nav a {
            text-decoration: none;
            color: var(--color-text-primary);
            font-size: var(--font-size-md);
            font-family: var(--font-sans);
            transition: opacity var(--transition-fast);
        }

        nav a:hover {
            opacity: 0.7;
        }

        /* Smooth Scroll */
        html {
            scroll-behavior: smooth;
        }

        /* --------------------------------------------
           7. HERO SECTION
           -------------------------------------------- */
        .hero {
            position: relative;
            text-align: center;
            padding: var(--space-3xl) var(--space-md);
            background: url(../media/images/hero.webp);
            background-size: cover;
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(255, 255, 255, 0.8); /* voile blanc à 80% */
            z-index: 1;
        }

        .hero > * {
            position: relative;
            z-index: 2;
        }

        .hero h1 {
            margin-bottom: var(--space-md);
            animation: fadeInUp 1s ease-out 0.4s both;
        }

        .hero .subtitle {
            font-size: var(--font-size-md);
            color: var(--color-text-secondary);
            margin-bottom: var(--space-lg);
            font-family: var(--font-sans);
            animation: fadeInUp 1s ease-out 0.6s both;
        }

        .hero .btn {
            animation: fadeInUp 1s ease-out 0.8s both;
        }

        /* --------------------------------------------
           8. STATS BAR
           -------------------------------------------- */
        .stats {
            display: flex;
            justify-content: space-around;
            padding: var(--space-xl) var(--space-md);
            font-family: var(--font-sans);
            font-size: var(--font-size-base);
            color: var(--color-text-tertiary);
            animation: fadeIn 1s ease-out 1s both;
        }

        /* --------------------------------------------
           9. FEATURE SECTIONS
           -------------------------------------------- */
        .feature-section {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity var(--transition-slow), transform var(--transition-slow);
            position: relative;
        }

        .feature-section.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .feature-sticky-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--space-2xl);
            align-items: start;
        }

        .feature-image-container {
            position: sticky;
            top: 120px;
            align-self: start;
            height: 600px;
        }

        .feature-image {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-sm);
            transition: transform 0.5s ease;
        }

        .feature-image:hover {
            transform: scale(1.05);
        }

        .feature-text {
            padding-right: var(--space-md);
        }

        .feature-text h2 {
            margin-bottom: var(--space-lg);
            line-height: var(--line-height-normal);
        }

        .feature-text h3 {
            font-size: var(--font-size-xl);
            margin-top: var(--space-2xl);
            margin-bottom: var(--space-md);
            font-family: var(--font-serif);
        }

        .feature-text p {
            margin-bottom: var(--space-lg);
        }

        /* =========================
           VOIR PLUS – MOBILE (FINAL)
           ========================= */
        @media (max-width: 768px) {
          .feature-text.is-collapsed > * {
            display: none;
          }

          .feature-text.is-collapsed > p:nth-of-type(-n+2),
          .feature-text.is-collapsed > .see-more {
            display: block;
          }

          .see-more {
            margin-top: 10px;
            font-family: var(--font-sans);
            font-size: var(--font-size-sm);
            color: var(--color-primary);
            cursor: pointer;
          }
        }

        /* --------------------------------------------
           10. STEPS SECTION
           -------------------------------------------- */
        .steps-section {
            text-align: center;
            opacity: 0;
            transform: translateY(30px);
            transition: opacity var(--transition-slow), transform var(--transition-slow);
        }

        .steps-section.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .steps-title {
            margin-bottom: var(--space-2xl);
        }

        .steps {
            margin-top: var(--space-2xl);
        }

        .step {
            text-align: left;
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }

        .steps-section.visible .step:nth-child(1) {
            opacity: 1;
            transform: translateY(0);
            transition-delay: 0.2s;
        }

        .steps-section.visible .step:nth-child(2) {
            opacity: 1;
            transform: translateY(0);
            transition-delay: 0.4s;
        }

        .steps-section.visible .step:nth-child(3) {
            opacity: 1;
            transform: translateY(0);
            transition-delay: 0.6s;
        }

        .step-number {
            font-size: 64px;
            font-weight: var(--font-weight-light);
            color: var(--color-border);
            margin-bottom: var(--space-md);
        }

        .step h3 {
            margin-bottom: var(--space-sm);
        }

        .step p {
            font-size: var(--font-size-base);
            color: var(--color-text-tertiary);
        }




@media (max-width: 768px) {
.stats {
    text-align: center;
    gap: var(--space-md);
}
}


/* =========================
   STEPS – SCROLL MOBILE (INCITATIF)
   ========================= */
@media (max-width: 768px) {
  .steps-section.container {
    padding-right: 0;
    padding-left: 0;
  }

  .steps {
    display: flex;
    gap: var(--space-md);

    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;

    /* clé ABSOLUE */
    padding-left: 20px;   /* alignement contenu */
    padding-right: 90px;  /* visibilité step suivante */
  }

  .step {
    flex: 0 0 280px;
    scroll-snap-align: start;

    padding-left: gap: var(--space-md);   /* décale le contenu hors de la zone verte */
    padding-right: gap: var(--space-md);
    box-sizing: border-box;
}

  .steps::-webkit-scrollbar {
    display: none;
  }
}

/* =========================
   STEPS – SCROLL INDICATORS
   ========================= */
@media (max-width: 768px) {
  .steps-wrapper {
    position: relative;
  }

  .steps-wrapper::before,
  .steps-wrapper::after {
    content: "";
    position: absolute;
    top: 0;
    width: 80px;
    height: 100%;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.25s ease;
  }

  /* gauche */
  .steps-wrapper::before {
    left: 0;
    background: linear-gradient(
      to right,
      var(--color-background),
      rgba(255,255,255,0)
    );
  }

  /* droite */
  .steps-wrapper::after {
    right: 0;
    background: linear-gradient(
      to left,
      var(--color-background),
      rgba(255,255,255,0)
    );
  }

  .steps-wrapper.has-left-gradient::before {
    opacity: 1;
  }

  .steps-wrapper.has-right-gradient::after {
    opacity: 1;
  }
}


        /* --------------------------------------------
           11. COUPLES SECTION
           -------------------------------------------- */
        .couples-section {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity var(--transition-slow), transform var(--transition-slow);
        }

        .couples-section.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .couples-list {
            list-style: none;
            counter-reset: item;
        }

        .couples-list li {
            padding: var(--space-md) 0;
            border-bottom: 1px solid var(--color-border);
            font-size: var(--font-size-md);
            font-family: var(--font-sans);
        }

        .couples-list li::before {
            content: "0" counter(item);
            counter-increment: item;
            margin-right: var(--space-md);
            color: var(--color-text-tertiary);
        }

        /* --------------------------------------------
           12. EXAMPLE SECTION & AUDIO PLAYER
           -------------------------------------------- */
        .example-section {
            position: relative;
            text-align: center;
            background: url("../media/images/ecouter.webp");
            background-size: cover;
            border-radius: var(--radius-sm);
            margin: var(--space-xl) var(--space-md);
            opacity: 0;
            transform: translateY(30px);
            transition: opacity var(--transition-slow), transform var(--transition-slow);
        }

        .example-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(255, 255, 255, 0.7); /* voile blanc à 70% */
            z-index: 1;
        }

        .example-section > * {
            position: relative;
            z-index: 2;
        }


        .example-section.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .example-subtitle {
            font-size: var(--font-size-base);
            color: var(--color-text-secondary);
            margin-bottom: var(--space-xl);
        }

        .audio-player {
            max-width: 600px;
            margin: 0 auto;
            padding: var(--space-xl);
        }

        .audio-controls {
            display: flex;
            align-items: center;
            gap: var(--space-md);
            background: var(--color-white);
            padding: var(--space-lg);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-md);
            margin-bottom: var(--space-lg);
        }

        .play-button {
            width: 60px;
            height: 60px;
            min-width: 60px;
            background: var(--color-primary);
            border-radius: var(--radius-full);
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-fast);
            color: var(--color-white);
            font-size: 20px;
        }

        .play-button:hover {
            background: var(--color-primary-dark);
            transform: scale(1.05);
        }

        .play-button.playing {
            background: var(--color-primary-dark);
        }

        .audio-info {
            flex: 1;
            text-align: left;
        }

        .audio-title {
            font-family: var(--font-serif);
            font-size: var(--font-size-lg);
            margin-bottom: 5px;
            color: var(--color-text-primary);
        }

        .audio-artist {
            font-size: var(--font-size-sm);
            color: var(--color-text-tertiary);
            font-family: var(--font-sans);
        }

        .progress-container {
            width: 100%;
            background: var(--color-white);
            padding: var(--space-md);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
        }

        .progress-bar {
            width: 100%;
            height: 6px;
            background: var(--color-border);
            border-radius: 3px;
            cursor: pointer;
            position: relative;
            margin-bottom: 10px;
        }

        .progress-fill {
            height: 100%;
            background: var(--color-primary);
            border-radius: 3px;
            width: 0%;
            transition: width 0.1s linear;
        }

        .time-display {
            display: flex;
            justify-content: space-between;
            font-size: var(--font-size-sm);
            color: var(--color-text-tertiary);
            font-family: var(--font-sans);
        }

        .playlist {
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
            margin-top: var(--space-lg);
        }

        .playlist-item {
            background: var(--color-white);
            padding: var(--space-md) var(--space-lg);
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all var(--transition-fast);
            display: flex;
            align-items: center;
            gap: var(--space-md);
            border: 2px solid transparent;
        }

        .playlist-item:hover {
            background: rgba(107, 31, 120, 0.05);
            border-color: var(--color-primary);
        }

        .playlist-item.active {
            background: rgba(107, 31, 120, 0.1);
            border-color: var(--color-primary);
        }

        .playlist-number {
            width: 30px;
            height: 30px;
            background: var(--color-background-alt);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: var(--font-size-sm);
            color: var(--color-text-secondary);
            font-family: var(--font-sans);
        }

        .playlist-item.active .playlist-number {
            background: var(--color-primary);
            color: var(--color-white);
        }

        .playlist-info {
            flex: 1;
            text-align: left;
        }

        .playlist-title {
            font-family: var(--font-sans);
            font-size: var(--font-size-md);
            color: var(--color-text-primary);
            margin-bottom: 2px;
        }

        .playlist-artist {
            font-size: var(--font-size-sm);
            color: var(--color-text-tertiary);
            font-family: var(--font-sans);
        }

        /* --------------------------------------------
           13. QUOTE SECTION
           -------------------------------------------- */
        .quote-section {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity var(--transition-slow), transform var(--transition-slow);
        }

        .quote-section.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .quote {
            font-size: var(--font-size-xl);
            font-weight: var(--font-weight-light);
            line-height: var(--line-height-normal);
        }

        .quote-author {
            font-size: var(--font-size-sm);
            color: var(--color-text-tertiary);
            margin-top: var(--space-md);
            font-family: var(--font-sans);
        }

        /* --------------------------------------------
           14. FINAL CTA
           -------------------------------------------- */
        .final-cta {
            text-align: center;
            opacity: 0;
            transform: translateY(30px);
            transition: opacity var(--transition-slow), transform var(--transition-slow);
        }

        .final-cta.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .final-cta h2 {
            margin-bottom: var(--space-lg);
        }

        .final-cta p {
            margin-bottom: var(--space-xl);
        }



          /* ============================================
           FORMULAIRE SECTION
           ============================================ */
        .form-section {
            background: var(--color-background-alt);
            opacity: 0;
            transform: translateY(30px);
            transition: opacity var(--transition-slow), transform var(--transition-slow);
        }

        .form-section.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .form-container {
            max-width: 600px;
            margin: 0 auto;
        }

        .form-header {
            text-align: center;
            margin-bottom: var(--space-xl);
        }

        .form-header h2 {
            margin-bottom: var(--space-md);
        }

        .form-header .microcopy {
            font-size: var(--font-size-md);
            color: var(--color-text-secondary);
        }

        .form-card {
            background: var(--color-white);
            padding: var(--space-2xl);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
        }

        .form-group {
            margin-bottom: var(--space-lg);
        }

        .form-label {
            display: block;
            font-family: var(--font-sans);
            font-size: var(--font-size-sm);
            font-weight: 500;
            margin-bottom: var(--space-xs);
            color: var(--color-text-primary);
        }

        .form-input,
        .form-textarea {
            width: 100%;
            padding: var(--space-sm) var(--space-md);
            font-family: var(--font-sans);
            font-size: var(--font-size-md);
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .form-input:focus,
        .form-textarea:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 1px var(--color-primary);
        }

        .form-input.error,
        .form-textarea.error {
            border-color: var(--color-error);
            background: var(--color-error-bg);
        }

        .form-textarea {
            resize: vertical;
            min-height: 120px;
        }

        .error-message {
            display: block;
            margin-top: var(--space-xs);
            font-family: var(--font-sans);
            font-size: var(--font-size-xs);
            color: var(--color-error);
        }

        .btn-submit {
            width: 100%;
            padding: var(--space-md) var(--space-xl);
            font-family: var(--font-sans);
            font-size: var(--font-size-md);
            font-weight: 500;
            color: var(--color-white);
            background: var(--color-primary);
            border: none;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .btn-submit:hover {
            background: var(--color-primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        .btn-submit:disabled {
            opacity: 0.5;
            cursor: not-allowed;
            transform: none;
        }

        .form-footer {
            text-align: center;
            margin-top: var(--space-md);
        }

        .form-footer p {
            font-size: var(--font-size-sm);
            color: var(--color-text-tertiary);
        }



.form-card {
  transition: opacity 0.3s ease;
}

.form-input.error,
.form-textarea.error {
  border-color: #c0392b;
  background: #fff5f5;
}
        /* ============================================
           SUCCESS MESSAGE
           ============================================ */
        .success-message {
            display: none;
            text-align: center;
            background: var(--color-white);
            padding: var(--space-2xl);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
        }

        .success-message.active {
            display: block;
            animation: fadeInUp 0.6s ease-out;
        }

        .success-message h3 {
            font-size: var(--font-size-xl);
            margin-bottom: var(--space-md);
        }

        .success-message p {
            color: var(--color-text-secondary);
            margin-bottom: var(--space-sm);
        }




               /* --------------------------------------------
           15. FOOTER
           -------------------------------------------- */
        footer {
            padding: var(--space-xl) var(--space-md);
            background: var(--color-background);
            border-top: 1px solid var(--color-border);
        }

        .footer-links {
            display: flex;
            justify-content: center;
            gap: var(--space-lg);
            list-style: none;
            margin-bottom: var(--space-xl);
        }

        .footer-links a {
            text-decoration: none;
            color: var(--color-text-secondary);
            font-size: var(--font-size-sm);
            font-family: var(--font-sans);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: var(--space-lg) 0;
        }

        .footer-left {
            display: flex;
            align-items: center;
            gap: var(--space-md);
        }

        .footer-logo {
            width: 50px;
            height: 50px;
            flex-shrink: 0;
        }

        .footer-copyright {
            font-size: var(--font-size-sm);
            color: var(--color-text-tertiary);
            font-family: var(--font-sans);
            white-space: nowrap;
        }

        .footer-right {
            font-size: var(--font-size-sm);
            color: var(--color-text-tertiary);
            font-family: var(--font-sans);
            text-align: right;
        }

        @media (max-width: 768px) {
            .footer-bottom {
                flex-direction: column;
                gap: var(--space-md);
                text-align: center;
            }
        }

        /* --------------------------------------------
           16. ANIMATIONS
           -------------------------------------------- */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

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

        /* --------------------------------------------
           17. MOBILE NAVIGATION
           -------------------------------------------- */
        .burger-menu {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            z-index: var(--z-modal);
        }

        .burger-menu span {
            width: 30px;
            height: 3px;
            background: var(--color-text-primary);
            transition: all var(--transition-fast);
            border-radius: 3px;
        }

        .burger-menu.active span:nth-child(1) {
            transform: rotate(45deg) translate(8px, 8px);
        }

        .burger-menu.active span:nth-child(2) {
            opacity: 0;
        }

        .burger-menu.active span:nth-child(3) {
            transform: rotate(-45deg) translate(8px, -8px);
        }

        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(15px);
            -webkit-backdrop-filter: blur(15px);
            padding: var(--space-md) var(--space-xl);
            justify-content: space-between;
            align-items: center;
            z-index: var(--z-fixed);
            box-shadow: var(--shadow-sm);
        }

        .mobile-menu {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--color-background);
            z-index: var(--z-sticky);
            padding: 100px var(--space-xl);
            transform: translateX(-100%);
            transition: transform var(--transition-normal);
        }

        .mobile-menu.active {
            transform: translateX(0);
        }

        .mobile-menu ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: var(--space-xl);
        }

        .mobile-menu a {
            text-decoration: none;
            color: var(--color-text-primary);
            font-size: var(--font-size-xl);
            font-family: var(--font-serif);
            font-weight: var(--font-weight-light);
        }

        .mobile-menu-footer {
            position: absolute;
            bottom: 60px;
            left: var(--space-xl);
        }

        .mobile-menu-footer a {
            font-size: 16px !important;
            color: var(--color-primary);
            display: flex;
            align-items: center;
            gap: var(--space-xs);
        }

        /* --------------------------------------------
           18. RESPONSIVE
           -------------------------------------------- */
        @media (max-width: 768px) {
            /* Hide desktop header */
            header {
                display: none;
            }

            /* Show mobile elements */
            .mobile-header {
                display: flex;
            }

            .burger-menu {
                display: flex;
            }

            nav {
                display: none;
            }

            /* Adjust typography */
            h1 {
                font-size: var(--font-size-2xl);
                margin-top: 60px;
            }

            h2 {
                font-size: var(--font-size-xl);
            }

            /* Adjust layout */
            .hero {
                padding-top: 120px;
            }

            .feature-sticky-wrapper {
                grid-template-columns: 1fr;
            }

            .feature-image-container {
                position: relative;
                top: 0;
                height: 300px;
            }

            .feature-text {
                padding-right: 0;
            }

            .grid-2,
            .grid-3 {
                grid-template-columns: 1fr;
            }

            /* Adjust spacing */
            .section {
                padding: var(--space-2xl) var(--space-md);
            }

        }

        /* --------------------------------------------
           19. UTILITY CLASSES
           -------------------------------------------- */
        .text-center {
            text-align: center;
        }

        .mt-sm { margin-top: var(--space-sm); }
        .mt-md { margin-top: var(--space-md); }
        .mt-lg { margin-top: var(--space-lg); }
        .mt-xl { margin-top: var(--space-xl); }

        .mb-sm { margin-bottom: var(--space-sm); }
        .mb-md { margin-bottom: var(--space-md); }
        .mb-lg { margin-bottom: var(--space-lg); }
        .mb-xl { margin-bottom: var(--space-xl); }