/* ===========================
   CSS Variables & Reset
   =========================== */
:root {
    /* Colors - TPG Brand Palette (Light Mode) */
    --color-primary: #1F4E5F;      /* Dark Teal - Primary brand color from logo */
    --color-secondary: #5D8AA8;    /* Medium Teal - Secondary wave color */
    --color-accent: #E67E4D;       /* Orange/Coral - Sun/compass accent */
    --color-light: #D4E5F0;        /* Light Blue-gray */
    --color-dark: #0f1419;
    
    /* Light Mode Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #f0f4f8;
    --bg-elevated: #ffffff;
    --text-primary: #212529;
    --text-secondary: #495057;
    --text-tertiary: #6c757d;
    --border-color: #e9ecef;
    --border-color-light: #f0f0f0;
    
    --color-gray-100: #f8f9fa;
    --color-gray-200: #e9ecef;
    --color-gray-300: #dee2e6;
    --color-gray-400: #ced4da;
    --color-gray-500: #adb5bd;
    --color-gray-600: #6c757d;
    --color-gray-700: #495057;
    --color-gray-800: #343a40;
    --color-gray-900: #212529;
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.18);
    --glass-shadow: rgba(31, 78, 95, 0.1);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Layout */
    --container-max-width: 1200px;
    --border-radius: 0.75rem;
    --border-radius-lg: 1.25rem;
    --border-radius-xl: 2rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --theme-transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Shadows - Enhanced */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.16);
    --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.25);
    --shadow-colored: 0 8px 24px rgba(31, 78, 95, 0.15);
}

/* Dark Mode */
[data-theme="dark"] {
    --bg-primary: #0f1419;
    --bg-secondary: #1a1f26;
    --bg-tertiary: #242932;
    --bg-elevated: #1f2832;
    --text-primary: #f8f9fa;
    --text-secondary: #e9ecef;
    --text-tertiary: #ced4da;
    --border-color: #2d3542;
    --border-color-light: #242932;
    
    --color-gray-100: #1a1f26;
    --color-gray-200: #242932;
    --color-gray-300: #2d3542;
    --color-gray-400: #3d4552;
    --color-gray-500: #6c757d;
    --color-gray-600: #adb5bd;
    --color-gray-700: #ced4da;
    --color-gray-800: #dee2e6;
    --color-gray-900: #f8f9fa;
    
    /* Dark Mode Glassmorphism */
    --glass-bg: rgba(31, 40, 50, 0.6);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: rgba(0, 0, 0, 0.3);
    
    /* Enhanced shadows for dark mode */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 24px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.6);
    --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.7);
    --shadow-colored: 0 8px 24px rgba(31, 78, 95, 0.4);
}

/* Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    font-weight: var(--font-weight-normal);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--theme-transition), color var(--theme-transition);
}

/* ===========================
   Typography
   =========================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    transition: color var(--theme-transition);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    transition: color var(--theme-transition);
}

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

a:hover {
    color: var(--color-secondary);
}

[data-theme="dark"] a {
    color: var(--color-secondary);
}

[data-theme="dark"] a:hover {
    color: var(--color-accent);
}

/* ===========================
   Layout Components
   =========================== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    transition: color var(--theme-transition);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-tertiary);
    max-width: 600px;
    margin: 0 auto;
    transition: color var(--theme-transition);
}

/* ===========================
   Navigation
   =========================== */
.navbar {
    position: sticky;
    top: 0;
    background-color: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--theme-transition), border-color var(--theme-transition);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    letter-spacing: 0.05em;
}

.logo-img {
    height: 45px;
    width: auto;
    display: block;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-base);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    transition: width var(--transition-base);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-primary);
}

.btn-nav {
    background-color: var(--color-primary);
    color: white !important;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius);
    transition: background-color var(--transition-base);
}

.btn-nav:hover {
    background-color: var(--color-secondary);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-gray-700);
    transition: all var(--transition-base);
}

/* ===========================
   Hero Section
   =========================== */
.hero {
    position: relative;
    padding: calc(var(--spacing-3xl) + 2rem) 0 var(--spacing-3xl);
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-tertiary) 100%);
    overflow: hidden;
    min-height: 85vh;
    display: flex;
    align-items: center;
    transition: background var(--theme-transition);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    pointer-events: none;
}

.hero-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.03;
    background-image: 
        radial-gradient(circle at 20% 50%, var(--color-primary) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, var(--color-secondary) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, var(--color-accent) 0%, transparent 50%);
    background-size: 600px 600px, 500px 500px, 400px 400px;
    background-position: -100px -100px, calc(100% + 100px) calc(100% + 100px), 50% 0;
}

.hero-logo-watermark {
    position: absolute;
    top: 50%;
    right: 5%;
    transform: translateY(-50%);
    opacity: 0.04;
    z-index: 0;
    width: 400px;
    height: 400px;
    pointer-events: none;
}

.hero-logo-watermark img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: grayscale(100%);
}

.hero-logo.theme-toggle {
    margin-bottom: var(--spacing-lg);
    display: flex;
    justify-content: center;
    align-items: center;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-xl);
    transition: all var(--transition-base);
    position: relative;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.hero-logo.theme-toggle:active {
    transform: scale(0.95);
}

.logo-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-logo-img {
    height: 80px;
    width: auto;
    opacity: 0.95;
    filter: drop-shadow(0 4px 16px rgba(31, 78, 95, 0.2));
    transition: all var(--transition-base);
    position: relative;
    z-index: 2;
}

.hero-logo.theme-toggle:hover .hero-logo-img {
    transform: scale(1.08) rotate(5deg);
    opacity: 1;
    filter: drop-shadow(0 6px 20px rgba(31, 78, 95, 0.3));
}

[data-theme="dark"] .hero-logo-img {
    filter: drop-shadow(0 4px 16px rgba(230, 126, 77, 0.3));
}

[data-theme="dark"] .hero-logo.theme-toggle:hover .hero-logo-img {
    filter: drop-shadow(0 6px 20px rgba(230, 126, 77, 0.5));
}

.theme-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 24px;
    height: 24px;
    z-index: 3;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-base), transform var(--transition-base);
}

.theme-icon svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    color: var(--color-accent);
    transition: all var(--transition-base);
}

.sun-icon {
    opacity: 1;
    transform: scale(0.8) rotate(0deg);
}

.moon-icon {
    opacity: 0;
    transform: scale(0.8) rotate(-90deg);
}

[data-theme="dark"] .sun-icon {
    opacity: 0;
    transform: scale(0.8) rotate(90deg);
}

[data-theme="dark"] .moon-icon {
    opacity: 1;
    transform: scale(0.8) rotate(0deg);
}

.hero-logo.theme-toggle:hover .theme-icon {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.1);
}

.hero-logo.theme-toggle:active .theme-icon {
    transform: translate(-50%, -50%) scale(0.9);
}

.hero-logo.theme-toggle.theme-switching {
    animation: themePulse 0.4s ease;
}

@keyframes themePulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

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

.hero-content {
    text-align: center;
    max-width: 950px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--color-primary);
    padding: var(--spacing-xs) var(--spacing-lg);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    letter-spacing: 0.02em;
    transition: all var(--theme-transition);
}

[data-theme="dark"] .hero-badge {
    background: var(--glass-bg);
    border-color: var(--border-color);
    color: var(--color-secondary);
}

.hero-badge .badge-icon {
    width: 16px;
    height: 16px;
    color: var(--color-accent);
    flex-shrink: 0;
}

.hero-title {
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.hero-title br {
    display: block;
    margin: 0.3em 0;
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-highlight {
    color: var(--color-secondary);
    display: block;
    font-weight: var(--font-weight-bold);
    margin-top: 0.2em;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
    font-weight: var(--font-weight-normal);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    transition: color var(--theme-transition);
}

.hero-subtitle br {
    display: block;
    margin: 0.5em 0;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-2xl);
}

.hero-cta .btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: 1rem;
    transition: all var(--transition-base);
}

.hero-cta .btn svg {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-base);
}

.hero-cta .btn:hover svg {
    transform: translateX(4px);
}

.hero-trust-indicators {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-gray-200);
    margin-top: var(--spacing-xl);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-tertiary);
    font-size: 0.9375rem;
    font-weight: var(--font-weight-medium);
    min-height: 44px; /* Touch target */
    padding: var(--spacing-xs);
    border-radius: var(--border-radius);
    transition: all var(--transition-base);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.trust-item:active {
    transform: scale(0.98);
    background-color: var(--bg-secondary);
}

.trust-item:hover:not(:active) {
    color: var(--color-primary);
    background-color: var(--bg-secondary);
}

[data-theme="dark"] .trust-item:hover:not(:active) {
    color: var(--color-accent);
}

.trust-item svg {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
    flex-shrink: 0;
}

/* ===========================
   Buttons
   =========================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-xl);
    min-height: 48px; /* Touch target size */
    min-width: 120px;
    border-radius: var(--border-radius);
    font-weight: var(--font-weight-semibold);
    text-align: center;
    transition: all var(--transition-base);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    position: relative;
}

.btn:active {
    transform: scale(0.97);
}

.btn svg {
    flex-shrink: 0;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    border: none;
    box-shadow: var(--shadow-md), 0 0 0 0 rgba(31, 78, 95, 0.4);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg), 0 0 20px rgba(31, 78, 95, 0.3);
}

.btn-secondary {
    background: var(--bg-elevated);
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg), 0 0 20px rgba(31, 78, 95, 0.2);
    border-color: var(--color-secondary);
}

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

.btn-white:hover {
    background-color: var(--color-gray-100);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ===========================
   Stats Section
   =========================== */
.stats-section {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-primary);
    transition: background var(--theme-transition);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    text-align: center;
}

.stat-item {
    min-height: 48px; /* Touch target */
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 2px solid var(--border-color);
    transition: all var(--transition-base);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.stat-item:active {
    transform: scale(0.98);
    background-color: var(--color-gray-100);
}

.stat-item:hover:not(:active) {
    border-color: var(--color-accent);
    background: var(--bg-elevated);
    box-shadow: var(--shadow-lg), var(--shadow-colored);
    transform: translateY(-4px);
}

.stat-item[aria-expanded="true"] {
    background: var(--bg-elevated);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-xl), var(--shadow-colored);
    border-width: 3px;
}

.stat-content {
    transition: all var(--transition-base);
}

.stat-item[aria-expanded="true"] .stat-content {
    margin-bottom: var(--spacing-md);
}

.stat-number {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
    transition: color var(--transition-base);
}

.stat-item[aria-expanded="true"] .stat-number {
    color: var(--color-secondary);
}

.stat-label {
    color: var(--text-tertiary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: var(--font-weight-medium);
    transition: color var(--theme-transition);
}

.stat-detail {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base), padding var(--transition-base), opacity var(--transition-base);
    opacity: 0;
    padding: 0;
}

.stat-item[aria-expanded="true"] .stat-detail {
    max-height: 200px;
    opacity: 1;
    padding-top: var(--spacing-md);
}

.stat-detail p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin: 0;
    text-align: left;
    text-transform: none;
    letter-spacing: normal;
    transition: color var(--theme-transition);
}

/* ===========================
   Services Overview
   =========================== */
.services-overview {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    transition: background var(--theme-transition);
    position: relative;
}

.services-overview::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

/* Services Tabs */
.services-tabs {
    display: flex;
    gap: var(--spacing-xs);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
    padding: 0 var(--spacing-md);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.services-tabs::-webkit-scrollbar {
    display: none;
}

.service-tab {
    min-height: 48px; /* Touch target size */
    min-width: 120px;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    font-weight: var(--font-weight-medium);
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all var(--transition-base);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    position: relative;
    box-shadow: var(--shadow-sm);
}

.service-tab:active {
    transform: scale(0.98);
    background-color: var(--color-gray-100);
}

.service-tab:hover:not(:active) {
    border-color: var(--color-secondary);
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.service-tab.active {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg), var(--shadow-colored);
    transform: translateY(-2px);
}

.service-tab.active:active {
    background-color: var(--color-secondary);
    transform: scale(0.98);
}

.service-tab span {
    display: block;
    pointer-events: none;
}

.services-content {
    position: relative;
    min-height: 400px;
}

.service-panel {
    display: none;
    animation: fadeIn 0.3s ease-in;
}

.service-panel.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-base);
    border: 1px solid var(--border-color);
    min-height: 48px; /* Touch target for card */
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary), var(--color-accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:active {
    transform: scale(0.98);
    background-color: var(--bg-secondary);
}

.service-card:hover:not(:active) {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl), var(--shadow-colored);
    border-color: var(--color-accent);
    background: var(--bg-elevated);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-accent);
}

.service-icon svg {
    width: 40px;
    height: 40px;
}

.service-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
    transition: color var(--theme-transition);
}

[data-theme="dark"] .service-card h3 {
    color: var(--color-secondary);
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    transition: color var(--theme-transition);
}

.service-link {
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-base);
}

.service-link:hover {
    color: var(--color-secondary);
    transform: translateX(4px);
    display: inline-block;
}

/* ===========================
   About Preview
   =========================== */
.about-preview {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-primary);
    transition: background var(--theme-transition);
}

.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
    align-items: start;
}

.about-text h2 {
    color: var(--color-primary);
    transition: color var(--theme-transition);
}

[data-theme="dark"] .about-text h2 {
    color: var(--color-secondary);
}

.about-text p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    transition: color var(--theme-transition);
}

.about-values {
    display: grid;
    gap: var(--spacing-md);
}

.value-item {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-accent);
    overflow: hidden;
    transition: all var(--transition-base);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    min-height: 48px; /* Touch target */
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.value-item:active {
    transform: scale(0.98);
    background-color: var(--color-gray-200);
}

.value-item:hover:not(:active) {
    box-shadow: var(--shadow-md);
    border-left-width: 6px;
}

.value-item[aria-expanded="true"] {
    background: var(--bg-elevated);
    box-shadow: var(--shadow-lg), var(--shadow-colored);
    border-left-width: 6px;
}

.value-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    min-height: 48px; /* Touch target */
}

.value-item h4 {
    color: var(--color-primary);
    margin: 0;
    font-size: 1.125rem;
    pointer-events: none;
    transition: color var(--theme-transition);
}

[data-theme="dark"] .value-item h4 {
    color: var(--color-secondary);
}

.value-toggle {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
    transition: transform var(--transition-base);
    flex-shrink: 0;
    pointer-events: none;
}

.value-item[aria-expanded="true"] .value-toggle {
    transform: rotate(180deg);
}

.value-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base), padding var(--transition-base);
    padding: 0 var(--spacing-md);
}

.value-item[aria-expanded="true"] .value-content {
    max-height: 200px;
    padding: 0 var(--spacing-md) var(--spacing-md);
}

.value-content p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin: 0;
    padding-top: var(--spacing-xs);
    transition: color var(--theme-transition);
}

/* ===========================
   CTA Section
   =========================== */
.cta-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 50%, var(--color-primary) 100%);
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(230, 126, 77, 0.2) 0%, transparent 50%);
    pointer-events: none;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.cta-content h2 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

/* ===========================
   Footer
   =========================== */
.footer {
    background: linear-gradient(180deg, var(--bg-tertiary) 0%, var(--color-dark) 100%);
    color: var(--text-tertiary);
    padding: var(--spacing-2xl) 0 var(--spacing-md);
    transition: background var(--theme-transition), color var(--theme-transition);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-col h4 {
    color: white;
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
}

.footer-col p {
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-col a {
    color: var(--color-gray-400);
    font-size: 0.875rem;
    transition: color var(--transition-base);
}

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

.footer-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background-color: rgba(31, 78, 95, 0.3);
    color: var(--color-light);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 100px;
    font-size: 0.75rem;
    margin-top: var(--spacing-sm);
}

.footer-badge svg {
    width: 12px;
    height: 12px;
    fill: var(--color-accent);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-800);
    font-size: 0.875rem;
}

/* ===========================
   Responsive Design
   =========================== */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: white;
        flex-direction: column;
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--color-gray-200);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero {
        padding: calc(var(--spacing-2xl) + 1rem) 0 var(--spacing-2xl);
        min-height: auto;
    }
    
    .hero-content {
        animation: none; /* Disable animation on mobile for better performance */
    }
    
    .hero-title br {
        display: none;
    }
    
    .hero-subtitle br {
        display: none;
    }
    
    .hero-cta {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-cta .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-trust-indicators {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: center;
    }
    
    .hero-logo-watermark {
        display: none; /* Hide on mobile for cleaner look */
    }
    
    .hero-logo-img {
        height: 60px;
    }
    
    .theme-icon {
        width: 20px;
        height: 20px;
    }
    
    .services-tabs {
        justify-content: flex-start;
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
    
    .service-tab {
        min-width: 100px;
        font-size: 0.875rem;
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .value-item {
        min-height: 56px; /* Larger on mobile */
    }
    
    .value-header {
        min-height: 56px;
    }
    
    .btn {
        width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
}