/* ========================================
   VTCDF Landing Page - Styles
   ======================================== */

/* ===== CSS Variables ===== */
:root {
    /* Colors */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --primary-bg: rgba(99, 102, 241, 0.1);
    
    --secondary: #0ea5e9;
    --secondary-dark: #0284c7;
    
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.1);
    
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);
    
    --danger: #ef4444;
    
    --purple: #8b5cf6;
    --purple-bg: rgba(139, 92, 246, 0.1);
    
    --pink: #ec4899;
    --pink-bg: rgba(236, 72, 153, 0.1);
    
    --cyan: #06b6d4;
    --cyan-bg: rgba(6, 182, 212, 0.1);
    
    --orange: #f97316;
    --orange-bg: rgba(249, 115, 22, 0.1);
    
    /* Neutrals */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    --spacing-4xl: 96px;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 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);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

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

html {
    scroll-behavior: smooth;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: white;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
}

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

ul, ol {
    list-style: none;
}

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

/* ===== Utility Classes ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

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

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

.btn-ghost {
    background: transparent;
    color: var(--gray-600);
}

.btn-ghost:hover {
    background: var(--gray-100);
    color: var(--gray-900);
}

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

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

.btn-lg {
    padding: 16px 32px;
    font-size: 17px;
}

.btn-block {
    width: 100%;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    border-bottom-color: var(--gray-200);
    box-shadow: var(--shadow-sm);
}

.navbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-size: 20px;
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1.2;
}

.logo-subtitle {
    font-size: 11px;
    color: var(--gray-500);
    font-weight: 500;
}

.nav-links {
    display: none;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
    transition: color var(--transition-fast);
}

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

.nav-actions {
    display: none;
    align-items: center;
    gap: var(--spacing-md);
}

.mobile-menu-btn {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.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 {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: white;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 999;
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.mobile-menu > a {
    display: block;
    padding: var(--spacing-md) 0;
    font-size: 16px;
    font-weight: 500;
    color: var(--gray-700);
    border-bottom: 1px solid var(--gray-100);
}

.mobile-menu-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

@media (min-width: 1024px) {
    .nav-links {
        display: flex;
    }

    .nav-actions {
        display: flex;
    }

    .mobile-menu-btn {
        display: none;
    }

    .mobile-menu {
        display: none;
    }
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #f0f4ff 0%, #e8f0fe 50%, #f5f0ff 100%);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 40% 80%, rgba(14, 165, 233, 0.08) 0%, transparent 40%);
}

.hero-content {
    position: relative;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 8px 16px;
    background: white;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-lg);
}

.badge-icon {
    font-size: 18px;
}

.hero-title {
    font-size: clamp(32px, 6vw, 56px);
    font-weight: 800;
    line-height: 1.1;
    color: var(--gray-900);
    margin-bottom: var(--spacing-lg);
}

.hero-description {
    font-size: 18px;
    color: var(--gray-600);
    max-width: 540px;
    margin-bottom: var(--spacing-xl);
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 28px;
    font-weight: 800;
    color: var(--gray-900);
}

.stat-label {
    font-size: 13px;
    color: var(--gray-500);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--gray-300);
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.phone-mockup {
    position: relative;
    width: 280px;
    height: 560px;
    background: linear-gradient(145deg, #1a1a2e 0%, #0f0f1a 100%);
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-2xl);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #f2f2f7;
    border-radius: 28px;
    overflow: hidden;
}

.app-preview {
    padding: 16px;
}

.app-header-preview {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.app-logo-preview {
    display: flex;
    align-items: center;
    gap: 8px;
}

.app-logo-preview img {
    width: 36px;
    height: 36px;
    border-radius: 10px;
}

.app-logo-preview span {
    font-weight: 700;
    font-size: 18px;
    color: var(--gray-900);
}

.app-stats-preview {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 20px;
}

.stat-card-preview {
    background: white;
    border-radius: 12px;
    padding: 12px 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    box-shadow: var(--shadow-sm);
}

.stat-card-preview.blue { border-top: 3px solid var(--primary); }
.stat-card-preview.green { border-top: 3px solid var(--success); }
.stat-card-preview.orange { border-top: 3px solid var(--warning); }

.stat-icon-preview {
    font-size: 20px;
}

.stat-value-preview {
    font-size: 18px;
    font-weight: 700;
    color: var(--gray-900);
}

.stat-label-preview {
    font-size: 10px;
    color: var(--gray-500);
}

.app-activity-preview {
    background: white;
    border-radius: 12px;
    padding: 12px;
    box-shadow: var(--shadow-sm);
}

.activity-title-preview {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.activity-item-preview {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid var(--gray-100);
}

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

.activity-icon-preview {
    width: 36px;
    height: 36px;
    background: var(--primary-bg);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.activity-info-preview {
    flex: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
}

.activity-amount-preview {
    font-weight: 600;
    color: var(--success);
}

/* Floating Cards */
.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    font-size: 13px;
    font-weight: 500;
    animation: float 3s ease-in-out infinite;
}

.floating-icon {
    font-size: 18px;
}

.card-1 {
    top: 10%;
    right: -20px;
    animation-delay: 0s;
}

.card-2 {
    bottom: 30%;
    left: -30px;
    animation-delay: 1s;
}

.card-3 {
    bottom: 10%;
    right: -10px;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
}

.hero-wave svg {
    display: block;
    width: 100%;
    height: auto;
}

@media (min-width: 768px) {
    .hero-cta {
        flex-direction: row;
    }
}

@media (min-width: 1024px) {
    .hero {
        padding: 160px 0 120px;
    }
    
    .hero-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .phone-mockup {
        width: 320px;
        height: 640px;
    }
}

/* ===== Logos Section ===== */
.logos-section {
    padding: var(--spacing-3xl) 0;
    background: white;
}

.logos-title {
    text-align: center;
    font-size: 14px;
    color: var(--gray-500);
    margin-bottom: var(--spacing-xl);
}

.logos-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-xl);
}

.logo-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
}

.logo-icon {
    font-size: 24px;
}

/* ===== Section Header ===== */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-3xl);
}

.section-badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--primary-bg);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.section-description {
    font-size: 17px;
    color: var(--gray-600);
}

/* ===== Features Section ===== */
.features-section {
    padding: var(--spacing-4xl) 0;
    background: var(--gray-50);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.feature-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

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

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: var(--spacing-lg);
}

.feature-icon.blue { background: var(--primary-bg); }
.feature-icon.green { background: var(--success-bg); }
.feature-icon.purple { background: var(--purple-bg); }
.feature-icon.orange { background: var(--orange-bg); }
.feature-icon.pink { background: var(--pink-bg); }
.feature-icon.cyan { background: var(--cyan-bg); }

.feature-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    font-size: 15px;
    color: var(--gray-600);
    margin-bottom: var(--spacing-md);
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 14px;
    color: var(--gray-600);
}

.feature-list li::before {
    content: '✓';
    color: var(--success);
    font-weight: 600;
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===== How it Works ===== */
.how-it-works {
    padding: var(--spacing-4xl) 0;
    background: white;
}

.steps-container {
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: var(--spacing-lg);
    align-items: start;
    margin-bottom: var(--spacing-lg);
}

.step-number {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--purple));
    color: white;
    font-size: 20px;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-content {
    padding-top: 6px;
}

.step-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.step-description {
    font-size: 15px;
    color: var(--gray-600);
}

.step-visual {
    display: none;
}

.step-icon {
    width: 64px;
    height: 64px;
    background: var(--gray-100);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

.step-connector {
    width: 2px;
    height: 40px;
    background: linear-gradient(to bottom, var(--primary), var(--purple));
    margin-left: 23px;
    margin-bottom: var(--spacing-lg);
}

.steps-cta {
    text-align: center;
    margin-top: var(--spacing-2xl);
}

@media (min-width: 768px) {
    .step-visual {
        display: block;
    }
}

/* ===== Pricing Section ===== */
.pricing-section {
    padding: var(--spacing-4xl) 0;
    background: var(--gray-50);
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: 800px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    position: relative;
}

.pricing-card.popular {
    border: 2px solid var(--primary);
    transform: scale(1.02);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary), var(--purple));
    color: white;
    font-size: 12px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: var(--radius-full);
}

.pricing-header {
    text-align: center;
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
    margin-bottom: var(--spacing-lg);
}

.pricing-name {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xs);
}

.pricing-description {
    font-size: 14px;
    color: var(--gray-500);
    margin-bottom: var(--spacing-md);
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--spacing-xs);
}

.price-amount {
    font-size: 48px;
    font-weight: 800;
    color: var(--gray-900);
}

.price-period {
    font-size: 16px;
    color: var(--gray-500);
}

.pricing-note {
    font-size: 13px;
    color: var(--gray-400);
    margin-top: var(--spacing-xs);
}

.pricing-features {
    margin-bottom: var(--spacing-xl);
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    font-size: 15px;
    color: var(--gray-700);
}

.pricing-features li.disabled {
    color: var(--gray-400);
}

.check {
    color: var(--success);
    font-weight: 600;
}

.cross {
    color: var(--gray-300);
}

.pricing-guarantee {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-2xl);
    font-size: 14px;
    color: var(--gray-500);
}

.guarantee-icon {
    font-size: 20px;
}

@media (min-width: 768px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===== Testimonials Section ===== */
.testimonials-section {
    padding: var(--spacing-4xl) 0;
    background: white;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.testimonial-card {
    background: var(--gray-50);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
}

.testimonial-stars {
    font-size: 18px;
    margin-bottom: var(--spacing-md);
}

.testimonial-text {
    font-size: 16px;
    color: var(--gray-700);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--purple));
    color: white;
    font-size: 20px;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.author-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--gray-900);
}

.author-title {
    font-size: 13px;
    color: var(--gray-500);
}

@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===== FAQ Section ===== */
.faq-section {
    padding: var(--spacing-4xl) 0;
    background: var(--gray-50);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    text-align: left;
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-900);
    transition: all var(--transition-fast);
}

.faq-question:hover {
    background: var(--gray-50);
}

.faq-icon {
    font-size: 24px;
    color: var(--primary);
    transition: transform var(--transition-fast);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ===== CTA Section ===== */
.cta-section {
    padding: var(--spacing-4xl) 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--purple) 100%);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 800;
    color: white;
    margin-bottom: var(--spacing-md);
}

.cta-description {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
}

.cta-actions {
    margin-bottom: var(--spacing-lg);
}

.cta-note {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

/* ===== Download APK Section ===== */
.download-section {
    padding: var(--spacing-3xl) 0;
    background: var(--gray-50);
}

.download-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl) var(--spacing-2xl);
    max-width: 700px;
    margin: 0 auto;
    box-shadow: var(--shadow-sm);
}

.download-icon {
    flex-shrink: 0;
}

.download-info {
    flex: 1;
}

.download-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.download-description {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.5;
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: #3DDC84;
    color: white;
    font-family: var(--font-family);
    font-size: 15px;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-full);
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 14px rgba(61, 220, 132, 0.3);
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(61, 220, 132, 0.4);
}

@media (max-width: 640px) {
    .download-card {
        flex-direction: column;
        text-align: center;
        padding: var(--spacing-xl) var(--spacing-lg);
    }
}

/* ===== Footer ===== */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: var(--spacing-4xl) 0 var(--spacing-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.footer-logo-img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
}

.footer-logo-title {
    font-size: 20px;
    font-weight: 800;
    color: white;
}

.footer-logo-subtitle {
    display: block;
    font-size: 11px;
    color: var(--gray-500);
}

.footer-description {
    font-size: 14px;
    margin-bottom: var(--spacing-lg);
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--primary);
    color: white;
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer-links-title {
    font-size: 14px;
    font-weight: 600;
    color: white;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-links ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-links ul li a {
    font-size: 14px;
    transition: color var(--transition-fast);
}

.footer-links ul li a:hover {
    color: white;
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--gray-800);
    font-size: 14px;
    text-align: center;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
    
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out forwards;
}

/* ===== Scroll Reveal ===== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}