/* ===================================
   Mentor MD - Design System Styles
   =================================== */

/* CSS Variables - Light Mode (default) */
:root {
    /* Primary Colors */
    --primary: #0D5C63;
    --primary-hover: #0a4a50;
    --primary-light: rgba(13, 92, 99, 0.1);
    
    /* Text Colors */
    --text-primary: #1D1D1F;
    --text-secondary: #86868B;
    --text-white: #FFFFFF;
    --text-tagline: #2D4A52;
    
    /* Background Colors */
    --background: #F5F5F7;
    --background-white: #FFFFFF;
    --background-alt: #FAFAFA;
    
    /* Border Colors */
    --border: #E5E5EA;
    --border-light: #F2F2F7;
    
    /* Status Colors */
    --success: #34C759;
    --error: #FF3B30;
    --warning: #FF9500;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-primary: 0 4px 12px rgba(13, 92, 99, 0.3);
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-xxl: 48px;
    --space-xxxl: 80px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Typography */
    --font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 13px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 28px;
    --font-size-4xl: 36px;
    --font-size-5xl: 48px;
    --font-size-6xl: 56px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    
    /* Layout */
    --header-height: 72px;
    --container-max: 1200px;
    --container-padding: 24px;
}


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

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background-color: var(--background);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
}

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

/* Utility Classes */
.text-primary {
    color: var(--primary);
}

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

/* ===================================
   Layout
   =================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ===================================
   Header
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--background-white);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background-color: rgba(255, 255, 255, 0.8);
}


.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    color: var(--primary);
}

.logo-svg {
    height: 32px;
    width: auto;
    color: var(--primary);
}

/* Navigation */
.nav {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-base);
}

.nav-link:hover {
    color: var(--text-primary);
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

/* Language Switcher with Flags */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 4px;
    background: var(--background);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-secondary);
    background: transparent;
    border-radius: 6px;
    transition: all var(--transition-base);
    cursor: pointer;
}

.lang-btn:hover {
    color: var(--text-primary);
    background: var(--border-light);
}

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

.flag-icon {
    font-size: 16px;
    line-height: 1;
}

.lang-label {
    letter-spacing: 0.5px;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    gap: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--background-white);
    padding: var(--space-xl);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.mobile-nav-link {
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--text-primary);
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--border);
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-sm {
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-sm);
    border-radius: var(--radius-sm);
}

.btn-lg {
    padding: var(--space-lg) var(--space-xl);
    font-size: var(--font-size-lg);
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(13, 92, 99, 0.4);
}

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

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary-light);
}

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

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

/* ===================================
   Hero Section
   =================================== */
.hero {
    position: relative;
    display: flex;
    align-items: center;
    padding: calc(var(--header-height) + 31px) 0 31px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(13, 92, 99, 0.15), transparent),
        radial-gradient(ellipse 60% 40% at 100% 0%, rgba(13, 92, 99, 0.08), transparent),
        linear-gradient(180deg, var(--background) 0%, var(--background-white) 100%);
    z-index: -1;
}


.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.tagline {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: var(--space-lg);
}

.hero-title {
    font-size: clamp(var(--font-size-4xl), 6vw, var(--font-size-6xl));
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -1.5px;
    margin-bottom: var(--space-lg);
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xxl);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.hero-badge svg {
    color: var(--success);
}

/* ===================================
   Sections Common Styles
   =================================== */
section {
    padding: var(--space-xxxl) 0;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-xxl);
}

.section-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: var(--space-md);
}

.section-title {
    font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-4xl));
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===================================
   Reviews Carousel Section
   =================================== */
.reviews-carousel {
    padding: var(--space-xl) 0;
    background: var(--background-alt);
    overflow: hidden;
    max-height: 600px;
    position: relative;
}

.reviews-carousel::before,
.reviews-carousel::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    height: 100px;
    z-index: 10;
    pointer-events: none;
}

.reviews-carousel::before {
    top: 0;
    background: linear-gradient(to bottom, var(--background-alt) 0%, transparent 100%);
}

.reviews-carousel::after {
    bottom: 0;
    background: linear-gradient(to top, var(--background-alt) 0%, transparent 100%);
}

.reviews-container {
    display: flex;
    gap: var(--space-lg);
    padding: 0 var(--space-lg);
    max-width: 1400px;
    margin: 0 auto;
}

.reviews-column {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    animation: scrollUp var(--scroll-speed, 25s) linear infinite;
}

.reviews-column:nth-child(even) {
    animation-direction: reverse;
}

@keyframes scrollUp {
    0% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(-50%);
    }
}

.reviews-column:hover {
    animation-play-state: paused;
}

.review-card {
    background: var(--background-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    transition: all var(--transition-base);
}

.review-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.review-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.review-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 2px solid var(--border);
}

.review-info {
    display: flex;
    flex-direction: column;
}

.review-name {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.review-role {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.review-text {
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.review-text strong {
    color: var(--primary);
    font-weight: 500;
}

.review-stars {
    font-size: var(--font-size-sm);
    color: #F5A623;
    letter-spacing: 2px;
}

/* Responsive Reviews */
@media (max-width: 1024px) {
    .reviews-container {
        gap: var(--space-md);
    }
    
    .reviews-column:nth-child(4) {
        display: none;
    }
}

@media (max-width: 768px) {
    .reviews-container {
        flex-direction: column;
        padding: 0 var(--container-padding);
    }
    
    .reviews-column {
        display: none;
    }
    
    .reviews-column:first-child {
        display: flex;
        animation: scrollUpMobile 40s linear infinite;
    }
    
    @keyframes scrollUpMobile {
        0% {
            transform: translateY(0);
        }
        100% {
            transform: translateY(-50%);
        }
    }
}

/* ===================================
   Differentiator Section
   =================================== */
.differentiator {
    padding: var(--space-xxl) 0;
    background: linear-gradient(135deg, var(--primary) 0%, #0a4a50 100%);
    position: relative;
    overflow: hidden;
}

.differentiator::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(255,255,255,0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255,255,255,0.08) 0%, transparent 50%);
    pointer-events: none;
}

.diff-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.diff-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-full);
    color: rgba(255,255,255,0.9);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-lg);
    backdrop-filter: blur(10px);
}

.diff-badge svg {
    opacity: 0.8;
}

.diff-title {
    font-family: var(--font-serif);
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 400;
    color: white;
    margin-bottom: var(--space-lg);
    line-height: 1.3;
}

.diff-text {
    font-size: var(--font-size-lg);
    color: rgba(255,255,255,0.85);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
    font-style: italic;
}

.diff-sources {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
}

.source-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-md);
    color: white;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-base);
}

.source-item:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-2px);
}

.source-item svg {
    color: #7DD3D8;
}

@media (max-width: 768px) {
    .diff-text {
        font-size: var(--font-size-base);
    }
    
    .diff-sources {
        gap: var(--space-sm);
    }
    
    .source-item {
        font-size: var(--font-size-xs);
        padding: var(--space-xs) var(--space-sm);
    }
}

/* ===================================
   Features Section
   =================================== */
.features {
    background: var(--background-white);
}

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

.feature-card {
    padding: var(--space-xl);
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--primary-light);
    border-radius: var(--radius-md);
    color: var(--primary);
    margin-bottom: var(--space-md);
}

.feature-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.feature-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===================================
   Audience Section
   =================================== */
.audience {
    background: var(--background);
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.audience-card {
    text-align: center;
    padding: var(--space-xl);
    background: var(--background-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
}

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

.audience-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-md);
    background: var(--primary-light);
    border-radius: var(--radius-full);
    color: var(--primary);
}

.audience-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.audience-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===================================
   Why Us Section
   =================================== */
.why {
    background: var(--background-white);
}

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

.why-text {
    max-width: 500px;
}

.why-desc {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
}

.why-list {
    list-style: none;
}

.why-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--border-light);
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
}

.why-item:last-child {
    border-bottom: none;
}

.why-item svg {
    flex-shrink: 0;
    color: var(--success);
    margin-top: 2px;
}

.why-item span {
    font-size: var(--font-size-base);
    color: var(--text-primary);
}

.why-visual {
    display: flex;
    justify-content: center;
}

.stats-card {
    padding: var(--space-xl);
    background: var(--primary);
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    min-width: 280px;
}

.stat {
    text-align: center;
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
}

.stat-number {
    display: block;
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--text-white);
    letter-spacing: -1px;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.8);
}

/* ===================================
   Testimonials Section
   =================================== */
.testimonials {
    background: var(--background);
}

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

.testimonial-card {
    padding: var(--space-xl);
    background: var(--background-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    transition: all var(--transition-base);
}

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

.testimonial-content {
    flex: 1;
    margin-bottom: var(--space-lg);
}

.quote-icon {
    color: var(--primary);
    opacity: 0.3;
    margin-bottom: var(--space-md);
}

.testimonial-text {
    font-size: var(--font-size-base);
    color: var(--text-primary);
    line-height: 1.7;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-light);
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: var(--text-white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.author-role {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

/* ===================================
   Specialties Section
   =================================== */
.specialties {
    padding: var(--space-xxl) 0;
    background: var(--background-alt);
}

.specialties-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 400;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

.specialties .section-subtitle {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-xl);
}

.specialties-carousel-wrapper {
    overflow: hidden;
    width: 100%;
    position: relative;
}

.specialties-carousel-wrapper::before,
.specialties-carousel-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 100px;
    z-index: 10;
    pointer-events: none;
}

.specialties-carousel-wrapper::before {
    left: 0;
    background: linear-gradient(to right, var(--background-alt) 0%, transparent 100%);
}

.specialties-carousel-wrapper::after {
    right: 0;
    background: linear-gradient(to left, var(--background-alt) 0%, transparent 100%);
}

.specialties-grid {
    display: flex;
    gap: var(--space-md);
    animation: scrollLeft 40s linear infinite;
    width: max-content;
}

.specialties-grid:hover {
    animation-play-state: paused;
}

@keyframes scrollLeft {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.specialty-tag {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: var(--background-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    transition: all var(--transition-base);
    white-space: nowrap;
    flex-shrink: 0;
}

.specialty-tag svg {
    flex-shrink: 0;
    color: var(--primary);
}

.specialty-tag:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

@media (max-width: 768px) {
    .specialty-tag {
        padding: var(--space-sm) var(--space-md);
        font-size: var(--font-size-xs);
    }
    
    .specialties-grid {
        gap: var(--space-sm);
    }
}

/* ===================================
   Contact Section
   =================================== */
.contact-section {
    background: var(--background);
    padding: var(--space-xxl) 0;
}

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

.contact-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    background: rgba(13, 92, 99, 0.1);
    color: var(--primary);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-md);
}

.contact-title {
    font-family: var(--font-serif);
    font-size: var(--font-size-3xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.contact-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--background-white);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
}

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

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-md);
    font-size: var(--font-size-base);
    font-family: var(--font-primary);
    color: var(--text-primary);
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(13, 92, 99, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

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

.contact-submit {
    width: 100%;
    justify-content: center;
}

/* ===================================
   CTA Section
   =================================== */
.cta-section {
    background: var(--background-white);
    padding: var(--space-xxl) 0;
}

.cta-card {
    text-align: center;
    padding: var(--space-xxxl) var(--space-xl);
    background: var(--primary);
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.cta-title {
    font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-4xl));
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: var(--space-md);
    position: relative;
}

.cta-subtitle {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.8);
    max-width: 500px;
    margin: 0 auto var(--space-xl);
    position: relative;
}

.cta-actions {
    position: relative;
}

.cta-note {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
    margin-top: var(--space-md);
}

/* ===================================
   Disclaimer
   =================================== */
.disclaimer {
    padding: var(--space-xl) 0;
    background: var(--background);
}

.disclaimer-text {
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--background-white);
    border-top: 1px solid var(--border);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-xxl);
    padding: var(--space-xxl) 0;
}

.footer-brand {
    max-width: 250px;
}

.footer-tagline {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-top: var(--space-md);
    font-style: italic;
}

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

.footer-col {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-heading {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.footer-link {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    transition: color var(--transition-base);
}

.footer-link:hover {
    color: var(--primary);
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding: var(--space-lg) 0;
}

.copyright {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    text-align: center;
}

/* ===================================
   Animations
   =================================== */
.animate-on-scroll {
    opacity: 1;
    transform: translateY(0);
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Stagger animation delays */
.features-grid .feature-card:nth-child(1) { transition-delay: 0ms; }
.features-grid .feature-card:nth-child(2) { transition-delay: 100ms; }
.features-grid .feature-card:nth-child(3) { transition-delay: 200ms; }
.features-grid .feature-card:nth-child(4) { transition-delay: 300ms; }
.features-grid .feature-card:nth-child(5) { transition-delay: 400ms; }
.features-grid .feature-card:nth-child(6) { transition-delay: 500ms; }

.audience-grid .audience-card:nth-child(1) { transition-delay: 0ms; }
.audience-grid .audience-card:nth-child(2) { transition-delay: 100ms; }
.audience-grid .audience-card:nth-child(3) { transition-delay: 200ms; }
.audience-grid .audience-card:nth-child(4) { transition-delay: 300ms; }

.testimonials-grid .testimonial-card:nth-child(1) { transition-delay: 0ms; }
.testimonials-grid .testimonial-card:nth-child(2) { transition-delay: 100ms; }
.testimonials-grid .testimonial-card:nth-child(3) { transition-delay: 200ms; }

.why-list .why-item:nth-child(1) { transition-delay: 0ms; }
.why-list .why-item:nth-child(2) { transition-delay: 100ms; }
.why-list .why-item:nth-child(3) { transition-delay: 200ms; }
.why-list .why-item:nth-child(4) { transition-delay: 300ms; }

/* ===================================
   Responsive Design
   =================================== */

/* Tablet */
@media (max-width: 1024px) {
    :root {
        --container-padding: 20px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .audience-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .why-content {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .why-text {
        max-width: 100%;
        text-align: center;
    }
    
    .why-visual {
        order: -1;
    }
    
    .stats-card {
        flex-direction: row;
        width: 100%;
        max-width: 600px;
    }
    
    .stat {
        flex: 1;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin: 0 auto;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .footer-brand {
        max-width: 100%;
        text-align: center;
    }
    
    .footer-links {
        justify-items: center;
        text-align: center;
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --header-height: 64px;
        --space-xxxl: 60px;
    }
    
    .nav {
        display: none;
    }
    
    .header-actions .btn {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .hero {
        min-height: auto;
        padding: calc(var(--header-height) + var(--space-xxl)) 0 var(--space-xxl);
    }
    
    .hero-title {
        font-size: clamp(var(--font-size-3xl), 8vw, var(--font-size-5xl));
    }
    
    .hero-actions {
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .audience-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-card {
        flex-direction: column;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .cta-card {
        padding: var(--space-xxl) var(--space-lg);
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    :root {
        --container-padding: 16px;
    }
    
    .hero-badge {
        flex-direction: column;
        text-align: center;
    }
    
    .stat-number {
        font-size: var(--font-size-3xl);
    }
}