/* ==========================================================================
   DOGAN CONSULT - Unified Enterprise Design System (Light Theme)
   Based on IBM Carbon, Google Material, Microsoft Fluent best practices
   ========================================================================== */

/* ==========================================================================
   1. DESIGN TOKENS - CSS Custom Properties (Variables)
   ========================================================================== */

:root {
    /* -------------------------------------------------------------------------
       1.1 Global Tokens - Raw Values (Context-agnostic building blocks)
       ------------------------------------------------------------------------- */
    
    /* Primary Blue Palette (Trust, Reliability, Security) */
    --blue-50: #e3f2fd;
    --blue-100: #bbdefb;
    --blue-200: #90caf9;
    --blue-300: #64b5f6;
    --blue-400: #42a5f5;
    --blue-500: #0d6efd;
    --blue-600: #0056b3;
    --blue-700: #004494;
    --blue-800: #003366;
    --blue-900: #002244;
    
    /* Teal Palette (Expertise, Growth) */
    --teal-50: #e0f7fa;
    --teal-100: #b2ebf2;
    --teal-200: #80deea;
    --teal-300: #4dd0e1;
    --teal-400: #26c6da;
    --teal-500: #008080;
    --teal-600: #00766c;
    --teal-700: #006666;
    --teal-800: #004d4d;
    --teal-900: #003333;
    
    /* Neutral Palette (Clean, Professional) */
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --black: #000000;
    
    /* Status/Feedback Colors (Semantic) */
    --red-500: #dc3545;
    --red-600: #c82333;
    --green-500: #28a745;
    --green-600: #218838;
    --amber-500: #ffc107;
    --amber-600: #e0a800;
    --info-500: #17a2b8;
    
    /* Accent Colors (Innovation, Leadership) */
    --gold-500: #d4af37;
    --gold-600: #b8972f;
    --orange-500: #ff6b35;
    --orange-600: #e55a2b;
    
    /* -------------------------------------------------------------------------
       1.2 Alias (Semantic) Tokens - Meaningful Role Mapping
       ------------------------------------------------------------------------- */
    
    /* Color - Background */
    --color-bg-primary: var(--white);
    --color-bg-secondary: var(--gray-50);
    --color-bg-tertiary: var(--gray-100);
    --color-bg-inverse: var(--blue-800);
    --color-bg-brand: linear-gradient(135deg, var(--blue-800) 0%, var(--teal-500) 100%);
    --color-bg-overlay: rgba(0, 51, 102, 0.95);
    
    /* Color - Text */
    --color-text-primary: var(--gray-900);
    --color-text-secondary: var(--gray-600);
    --color-text-tertiary: var(--gray-500);
    --color-text-inverse: var(--white);
    --color-text-brand: var(--blue-800);
    --color-text-link: var(--blue-600);
    --color-text-link-hover: var(--blue-800);
    
    /* Color - Interactive */
    --color-interactive-primary: var(--blue-600);
    --color-interactive-primary-hover: var(--blue-700);
    --color-interactive-primary-active: var(--blue-800);
    --color-interactive-secondary: var(--teal-500);
    --color-interactive-secondary-hover: var(--teal-600);
    --color-interactive-secondary-active: var(--teal-700);
    
    /* Color - Status */
    --color-status-success: var(--green-500);
    --color-status-success-bg: #d4edda;
    --color-status-error: var(--red-500);
    --color-status-error-bg: #f8d7da;
    --color-status-warning: var(--amber-500);
    --color-status-warning-bg: #fff3cd;
    --color-status-info: var(--info-500);
    --color-status-info-bg: #d1ecf1;
    
    /* Color - Border */
    --color-border-subtle: var(--gray-200);
    --color-border-default: var(--gray-300);
    --color-border-strong: var(--gray-400);
    --color-border-brand: var(--teal-500);
    --color-border-interactive: var(--blue-500);
    
    /* -------------------------------------------------------------------------
       1.3 Typography Tokens
       ------------------------------------------------------------------------- */
    
    /* Font Families */
    --font-family-sans: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-heading: 'Montserrat', 'Open Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-family-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
    
    /* Font Sizes (Mobile-first, rem-based) */
    --font-size-xs: 0.75rem;     /* 12px */
    --font-size-sm: 0.875rem;    /* 14px */
    --font-size-base: 1rem;      /* 16px */
    --font-size-md: 1.125rem;    /* 18px */
    --font-size-lg: 1.25rem;     /* 20px */
    --font-size-xl: 1.5rem;      /* 24px */
    --font-size-2xl: 1.875rem;   /* 30px */
    --font-size-3xl: 2.25rem;    /* 36px */
    --font-size-4xl: 3rem;       /* 48px */
    --font-size-5xl: 3.75rem;    /* 60px */
    
    /* Font Weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Line Heights */
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    
    /* Letter Spacing */
    --letter-spacing-tight: -0.025em;
    --letter-spacing-normal: 0;
    --letter-spacing-wide: 0.025em;
    --letter-spacing-wider: 0.05em;
    
    /* -------------------------------------------------------------------------
       1.4 Spacing Tokens (8px base unit)
       ------------------------------------------------------------------------- */
    
    --space-0: 0;
    --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 */
    --space-24: 6rem;     /* 96px */
    --space-32: 8rem;     /* 128px */
    
    /* -------------------------------------------------------------------------
       1.5 Layout Tokens
       ------------------------------------------------------------------------- */
    
    --container-max-width: 1200px;
    --container-padding: var(--space-4);
    --section-padding-y: var(--space-16);
    --section-padding-y-mobile: var(--space-10);
    
    /* -------------------------------------------------------------------------
       1.6 Border & Radius Tokens
       ------------------------------------------------------------------------- */
    
    --radius-none: 0;
    --radius-sm: 0.25rem;   /* 4px */
    --radius-md: 0.5rem;    /* 8px */
    --radius-lg: 0.75rem;   /* 12px */
    --radius-xl: 1rem;      /* 16px */
    --radius-2xl: 1.5rem;   /* 24px */
    --radius-full: 9999px;
    
    /* -------------------------------------------------------------------------
       1.7 Shadow Tokens
       ------------------------------------------------------------------------- */
    
    --shadow-none: none;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-card: 0 2px 8px rgba(0, 51, 102, 0.08);
    --shadow-card-hover: 0 8px 24px rgba(0, 51, 102, 0.12);
    
    /* -------------------------------------------------------------------------
       1.8 Transition Tokens
       ------------------------------------------------------------------------- */
    
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
    --transition-transform: transform 250ms ease, box-shadow 250ms ease;
    
    /* -------------------------------------------------------------------------
       1.9 Z-Index Scale
       ------------------------------------------------------------------------- */
    
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ==========================================================================
   2. BASE STYLES & TYPOGRAPHY
   ========================================================================== */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-text-brand);
    margin-top: 0;
    margin-bottom: var(--space-4);
}

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

@media (max-width: 768px) {
    h1, .h1 { font-size: var(--font-size-2xl); }
    h2, .h2 { font-size: var(--font-size-xl); }
    h3, .h3 { font-size: var(--font-size-lg); }
}

p {
    margin-top: 0;
    margin-bottom: var(--space-4);
}

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

a:hover {
    color: var(--color-text-link-hover);
}

/* ==========================================================================
   3. UTILITY CLASSES
   ========================================================================== */

/* Text Colors */
.text-brand-primary { color: var(--blue-800) !important; }
.text-brand-teal { color: var(--teal-500) !important; }
.text-muted { color: var(--color-text-secondary) !important; }
.text-inverse { color: var(--color-text-inverse) !important; }
.text-white { color: var(--white) !important; }

/* Background Colors */
.bg-brand-primary { background-color: var(--blue-800) !important; }
.bg-brand-teal { background-color: var(--teal-500) !important; }
.bg-light { background-color: var(--gray-50) !important; }
.bg-white { background-color: var(--white) !important; }
.bg-gradient-brand { background: var(--color-bg-brand) !important; }

/* Border Colors */
.border-brand-teal { border-color: var(--teal-500) !important; }
.border-brand-primary { border-color: var(--blue-800) !important; }

/* ==========================================================================
   4. BUTTON COMPONENTS
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-normal);
    text-align: center;
    text-decoration: none;
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    min-height: 44px; /* Accessibility: minimum touch target */
}

.btn:focus {
    outline: 2px solid var(--blue-500);
    outline-offset: 2px;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Primary Button */
.btn-brand-primary,
.btn-primary {
    background-color: var(--color-interactive-primary);
    border-color: var(--color-interactive-primary);
    color: var(--white);
}

.btn-brand-primary:hover,
.btn-primary:hover {
    background-color: var(--color-interactive-primary-hover);
    border-color: var(--color-interactive-primary-hover);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-brand-primary:active,
.btn-primary:active {
    background-color: var(--color-interactive-primary-active);
    transform: translateY(0);
}

/* Secondary/Teal Button */
.btn-brand-teal {
    background-color: var(--color-interactive-secondary);
    border-color: var(--color-interactive-secondary);
    color: var(--white);
}

.btn-brand-teal:hover {
    background-color: var(--color-interactive-secondary-hover);
    border-color: var(--color-interactive-secondary-hover);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Outline Buttons */
.btn-outline-primary {
    background-color: transparent;
    border-color: var(--color-interactive-primary);
    color: var(--color-interactive-primary);
}

.btn-outline-primary:hover {
    background-color: var(--color-interactive-primary);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-outline-light {
    background-color: transparent;
    border-color: var(--white);
    color: var(--white);
}

.btn-outline-light:hover {
    background-color: var(--white);
    color: var(--blue-800);
    transform: translateY(-2px);
}

/* Light Button */
.btn-light {
    background-color: var(--white);
    border-color: var(--white);
    color: var(--blue-800);
}

.btn-light:hover {
    background-color: var(--gray-100);
    border-color: var(--gray-100);
    color: var(--blue-800);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Button Sizes */
.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--font-size-lg);
    min-height: 52px;
}

.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    min-height: 36px;
}

/* ==========================================================================
   5. CARD COMPONENTS
   ========================================================================== */

.card {
    background-color: var(--white);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    transition: var(--transition-transform);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--shadow-card-hover);
}

.card-body {
    padding: var(--space-6);
}

.card-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-brand);
    margin-bottom: var(--space-3);
}

.card-text {
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
}

/* Service Cards */
.service-card {
    border-top: 4px solid var(--teal-500);
    transition: all var(--transition-normal);
}

.service-card:hover {
    border-top-color: var(--blue-800);
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

/* Industry Cards */
.industry-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    box-shadow: var(--shadow-card);
    border-top: 4px solid var(--teal-500);
    transition: all var(--transition-normal);
}

.industry-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-8px);
    border-top-color: var(--blue-800);
}

/* Feature Cards */
.feature-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    text-align: center;
    transition: all var(--transition-normal);
    border: 1px solid var(--color-border-subtle);
}

.feature-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

/* ==========================================================================
   6. HERO SECTION
   ========================================================================== */

.hero-section {
    background: var(--color-bg-brand);
    min-height: 80vh;
    display: flex;
    align-items: center;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.hero-section .container {
    position: relative;
    z-index: 1;
}

.min-vh-50 {
    min-height: 50vh;
}

.hero-section h1 {
    color: var(--white);
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    margin-bottom: var(--space-6);
}

@media (max-width: 768px) {
    .hero-section {
        min-height: 60vh;
        text-align: center;
        padding: var(--space-10) 0;
    }
    
    .hero-section h1 {
        font-size: var(--font-size-2xl);
    }
}

/* ==========================================================================
   7. SECTION LAYOUTS
   ========================================================================== */

.section {
    padding: var(--section-padding-y) 0;
}

@media (max-width: 768px) {
    .section {
        padding: var(--section-padding-y-mobile) 0;
    }
}

/* Features Section */
.features-section {
    background-color: var(--white);
    padding: var(--section-padding-y) 0;
}

/* Industry Section */
.industry-section {
    background-color: var(--gray-50);
    padding: var(--section-padding-y) 0;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
    padding: var(--section-padding-y) 0;
}

/* Stats Section */
.stats-section {
    background-color: var(--white);
    padding: var(--section-padding-y) 0;
}

.stat-item {
    text-align: center;
    padding: var(--space-6);
}

.stat-item h2 {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    color: var(--blue-800);
    margin-bottom: var(--space-2);
}

.stat-item p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
    margin: 0;
}

/* Why Choose Us Section */
.why-section {
    background-color: var(--gray-50);
    padding: var(--section-padding-y) 0;
}

/* ==========================================================================
   8. NAVIGATION
   ========================================================================== */

.navbar {
    padding: var(--space-4) 0;
    transition: all var(--transition-normal);
}

.navbar-brand {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--blue-800) !important;
}

.navbar-brand i {
    color: var(--teal-500);
}

.nav-link {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary) !important;
    padding: var(--space-2) var(--space-4) !important;
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--teal-500) !important;
}

.nav-link.active {
    color: var(--blue-800) !important;
    font-weight: var(--font-weight-semibold);
}

/* ==========================================================================
   9. FOOTER
   ========================================================================== */

.footer {
    background-color: var(--blue-800);
    color: var(--white);
    padding: var(--section-padding-y) 0 var(--space-8);
}

.footer h5 {
    color: var(--white);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-4);
}

.footer a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

.footer a:hover {
    color: var(--white);
}

.footer .text-white-50 {
    color: rgba(255, 255, 255, 0.6) !important;
}

/* ==========================================================================
   10. FORM ELEMENTS
   ========================================================================== */

.form-control {
    display: block;
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background-color: var(--white);
    background-clip: padding-box;
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    min-height: 44px;
}

.form-control:focus {
    border-color: var(--teal-500);
    outline: 0;
    box-shadow: 0 0 0 3px rgba(0, 128, 128, 0.15);
}

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

.form-label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
}

/* Contact Form */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================================================
   11. ICONS & DECORATIVE ELEMENTS
   ========================================================================== */

.icon-lg {
    font-size: 3rem;
    color: var(--teal-500);
    margin-bottom: var(--space-4);
}

.icon-xl {
    font-size: 4rem;
    color: var(--teal-500);
    margin-bottom: var(--space-4);
}

/* ==========================================================================
   12. PRICING CARDS
   ========================================================================== */

.pricing-section .card {
    transition: all var(--transition-normal);
    border: 2px solid var(--color-border-subtle);
    border-radius: var(--radius-xl);
}

.pricing-section .card:hover {
    transform: scale(1.02);
    border-color: var(--teal-500);
    box-shadow: var(--shadow-xl);
}

.pricing-section .card-header {
    padding: var(--space-8);
    background: var(--color-bg-brand);
    color: var(--white);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

/* ==========================================================================
   13. CREDENTIALS/BADGES
   ========================================================================== */

.credentials-section .badge {
    background-color: var(--teal-500);
    color: var(--white);
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-full);
}

/* ==========================================================================
   14. RESPONSIVE ADJUSTMENTS
   ========================================================================== */

@media (max-width: 991px) {
    .hero-section .col-lg-5 {
        display: none;
    }
}

@media (max-width: 768px) {
    .display-4 {
        font-size: var(--font-size-2xl);
    }
    
    .display-5 {
        font-size: var(--font-size-xl);
    }
    
    .industry-card {
        margin-bottom: var(--space-6);
        padding: var(--space-6);
    }
    
    .stat-item h2 {
        font-size: var(--font-size-2xl);
    }
    
    .btn-lg {
        padding: var(--space-3) var(--space-6);
        font-size: var(--font-size-base);
    }
}

/* ==========================================================================
   15. RTL (Right-to-Left) SUPPORT
   ========================================================================== */

[dir="rtl"] {
    text-align: right;
}

[dir="rtl"] .navbar-nav {
    margin-right: 0;
    margin-left: auto;
}

[dir="rtl"] .ms-auto {
    margin-right: auto !important;
    margin-left: 0 !important;
}

[dir="rtl"] .me-2 {
    margin-right: 0 !important;
    margin-left: 0.5rem !important;
}

[dir="rtl"] .ms-2 {
    margin-right: 0.5rem !important;
    margin-left: 0 !important;
}

[dir="rtl"] .text-end {
    text-align: left !important;
}

[dir="rtl"] .text-start {
    text-align: right !important;
}

/* ==========================================================================
   16. ACCESSIBILITY ENHANCEMENTS
   ========================================================================== */

/* Focus visible for keyboard navigation */
:focus-visible {
    outline: 2px solid var(--blue-500);
    outline-offset: 2px;
}

/* Skip link for screen readers */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--blue-800);
    color: var(--white);
    padding: var(--space-2) var(--space-4);
    z-index: var(--z-tooltip);
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ==========================================================================
   17. ANIMATION & TRANSITIONS
   ========================================================================== */

/* Fade in animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* Stagger animation for lists */
.stagger-animation > * {
    opacity: 0;
    animation: fadeIn 0.5s ease forwards;
}

.stagger-animation > *:nth-child(1) { animation-delay: 0.1s; }
.stagger-animation > *:nth-child(2) { animation-delay: 0.2s; }
.stagger-animation > *:nth-child(3) { animation-delay: 0.3s; }
.stagger-animation > *:nth-child(4) { animation-delay: 0.4s; }