/* ===========================
   ScamShield AI - Main Stylesheet
   Modern, Light Theme Design
   =========================== */

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Primary Colors */
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    
    /* Secondary Colors */
    --secondary-color: #10b981;
    --accent-color: #8b5cf6;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    
    /* Neutrals */
    --white: #ffffff;
    --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;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --gradient-hero: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-display: 'Space Grotesk', sans-serif;
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-max-width: 1280px;
    
    /* Animation */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-primary);
    color: var(--gray-800);
    background-color: var(--gray-50);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Section Padding */
.section-padding {
    padding: var(--section-padding);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-label {
    display: inline-block;
    padding: 8px 16px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-description {
    font-size: 1.25rem;
    color: var(--gray-600);
    max-width: 700px;
    margin: 0 auto;
}

.gradient-text {
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===========================
   3D Animated Background
   =========================== */
.animated-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0e7ff 50%, #f3f4f6 100%);
}

.shape {
    position: absolute;
    opacity: 0.1;
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    top: 10%;
    left: 5%;
    animation-delay: 0s;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #10b981, #3b82f6);
    border-radius: 63% 37% 54% 46% / 55% 48% 52% 45%;
    top: 50%;
    right: 10%;
    animation-delay: 2s;
}

.shape-3 {
    width: 350px;
    height: 350px;
    background: linear-gradient(135deg, #8b5cf6, #ec4899);
    border-radius: 41% 59% 41% 59% / 41% 59% 41% 59%;
    bottom: 10%;
    left: 15%;
    animation-delay: 4s;
}

.shape-4 {
    width: 250px;
    height: 250px;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    border-radius: 50%;
    top: 60%;
    left: 40%;
    animation-delay: 6s;
}

.shape-5 {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, #3b82f6, #10b981);
    border-radius: 30% 70% 53% 47% / 54% 36% 64% 46%;
    top: 20%;
    right: 25%;
    animation-delay: 8s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg) scale(1);
    }
    25% {
        transform: translate(30px, -30px) rotate(90deg) scale(1.1);
    }
    50% {
        transform: translate(-20px, 20px) rotate(180deg) scale(0.9);
    }
    75% {
        transform: translate(40px, 10px) rotate(270deg) scale(1.05);
    }
}

.gradient-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, transparent 0%, rgba(255, 255, 255, 0.8) 100%);
    pointer-events: none;
}

/* ===========================
   Navigation
   =========================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    cursor: pointer;
}

.logo i {
    font-size: 2rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

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

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

.nav-actions {
    display: flex;
    gap: 16px;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--gray-700);
    cursor: pointer;
}

/* ===========================
   Buttons
   =========================== */
.btn-primary,
.btn-secondary,
.btn-outline {
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

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

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

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

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

.btn-outline {
    background: transparent;
    color: var(--gray-700);
    border: 2px solid var(--gray-300);
}

.btn-outline:hover {
    background: var(--gray-100);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* ===========================
   Hero Section
   =========================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    position: relative;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: 20px;
    color: var(--primary-color);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--gray-900);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 32px;
}

.hero-stats {
    display: flex;
    gap: 32px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.stat-item {
    flex: 1;
    min-width: 150px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    font-family: var(--font-display);
}

.stat-number::after {
    content: '+';
    margin-left: 4px;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-top: 4px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.hero-trust {
    text-align: center;
}

.hero-trust p {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-bottom: 16px;
}

.trust-logos {
    display: flex;
    gap: 24px;
    justify-content: center;
    font-size: 2rem;
    color: var(--gray-400);
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-container {
    position: relative;
    width: 100%;
    max-width: 500px;
}

.floating-card {
    position: absolute;
    background: var(--white);
    padding: 16px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    animation: floatCard 3s infinite ease-in-out;
}

.floating-card i {
    font-size: 1.5rem;
}

.card-1 {
    top: 10%;
    left: -10%;
    background: linear-gradient(135deg, #10b981, #059669);
    color: var(--white);
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: -10%;
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: var(--white);
    animation-delay: 1s;
}

.card-3 {
    bottom: 15%;
    left: -5%;
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
    color: var(--white);
    animation-delay: 2s;
}

@keyframes floatCard {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

.hero-device {
    width: 100%;
    background: var(--white);
    border-radius: 24px;
    padding: 20px;
    box-shadow: var(--shadow-xl);
    border: 8px solid var(--gray-200);
}

.device-screen {
    background: var(--gray-100);
    border-radius: 16px;
    padding: 24px;
    min-height: 400px;
}

.chat-interface {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chat-message {
    padding: 12px 16px;
    border-radius: 12px;
    max-width: 80%;
    font-size: 0.9rem;
}

.chat-message.scammer {
    background: var(--white);
    align-self: flex-start;
    box-shadow: var(--shadow-sm);
}

.chat-message.ai {
    background: var(--primary-color);
    color: var(--white);
    align-self: flex-end;
}

.chat-alert {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: var(--white);
    padding: 12px;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    margin-top: 8px;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 2rem;
    color: var(--primary-color);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ===========================
   Problem Section
   =========================== */
.problem-section {
    background: var(--white);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 60px;
}

.problem-card {
    background: var(--gray-50);
    padding: 32px;
    border-radius: 16px;
    border: 2px solid var(--gray-200);
    transition: var(--transition);
}

.problem-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--danger-color);
}

.problem-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: var(--white);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 20px;
}

.problem-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--gray-900);
}

.problem-card p {
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 16px;
}

.problem-stat {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 16px;
    border-top: 1px solid var(--gray-300);
}

.stat-highlight {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--danger-color);
}

.chart-container {
    background: var(--white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    margin-bottom: 60px;
}

.chart-header {
    text-align: center;
    margin-bottom: 32px;
}

.chart-header h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--gray-900);
}

.chart-header p {
    color: var(--gray-600);
}

canvas {
    max-height: 400px;
}

.fraud-types-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.fraud-visual {
    background: var(--white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.fraud-type-details h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--gray-900);
}

.fraud-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.fraud-item {
    position: relative;
}

.fraud-bar {
    height: 40px;
    background: var(--gradient-hero);
    border-radius: 8px;
    margin-bottom: 8px;
    animation: growBar 1s ease-out;
}

@keyframes growBar {
    from {
        width: 0;
    }
}

.fraud-item span {
    font-weight: 600;
    color: var(--gray-700);
}

/* ===========================
   Solution Section
   =========================== */
.solution-section {
    background: var(--gray-50);
}

.solution-flow {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 60px;
    flex-wrap: wrap;
    gap: 16px;
}

.flow-step {
    flex: 1;
    min-width: 200px;
    text-align: center;
    padding: 24px;
}

.flow-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 20px;
    background: var(--gradient-hero);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--white);
    position: relative;
    box-shadow: var(--shadow-lg);
}

.flow-number {
    position: absolute;
    top: -10px;
    right: -10px;
    width: 32px;
    height: 32px;
    background: var(--white);
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1rem;
    box-shadow: var(--shadow);
}

.flow-step h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--gray-900);
}

.flow-step p {
    color: var(--gray-600);
    font-size: 0.9rem;
}

.flow-arrow {
    font-size: 2rem;
    color: var(--primary-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--white);
    padding: 32px;
    border-radius: 16px;
    border: 2px solid var(--gray-200);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-hero);
    color: var(--white);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--gray-900);
}

.feature-card p {
    color: var(--gray-600);
    line-height: 1.6;
}

/* ===========================
   Android Section
   =========================== */
.android-section {
    background: var(--white);
}

.android-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 60px;
}

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

.phone-mockup {
    position: relative;
}

.phone-frame {
    width: 320px;
    background: var(--gray-900);
    border-radius: 40px;
    padding: 16px;
    box-shadow: var(--shadow-xl);
}

.phone-notch {
    width: 150px;
    height: 24px;
    background: var(--gray-900);
    border-radius: 0 0 16px 16px;
    margin: 0 auto 8px;
}

.phone-screen {
    background: var(--white);
    border-radius: 28px;
    overflow: hidden;
    height: 600px;
}

.call-interface {
    padding: 32px 24px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.caller-info {
    text-align: center;
}

.caller-avatar {
    width: 80px;
    height: 80px;
    margin: 0 auto 16px;
    font-size: 4rem;
    color: var(--gray-400);
}

.caller-number {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
}

.caller-location {
    font-size: 0.9rem;
    color: var(--gray-500);
}

.ai-analysis {
    text-align: center;
    margin: 24px 0;
}

.analysis-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--gray-100);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.analysis-badge.scanning {
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    color: var(--white);
}

.risk-meter {
    width: 100%;
    height: 8px;
    background: var(--gray-200);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 8px;
}

.risk-bar {
    height: 100%;
    background: linear-gradient(90deg, #f59e0b, #ef4444);
    border-radius: 4px;
    animation: fillRisk 2s ease-out;
}

@keyframes fillRisk {
    from {
        width: 0;
    }
}

.risk-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--danger-color);
}

.scam-alert {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: var(--white);
    padding: 16px;
    border-radius: 12px;
    text-align: center;
    margin: 16px 0;
}

.scam-alert i {
    font-size: 2rem;
    margin-bottom: 8px;
    display: block;
}

.call-actions {
    display: flex;
    justify-content: space-between;
    gap: 12px;
}

.action-btn {
    flex: 1;
    background: var(--white);
    border: 2px solid var(--gray-300);
    padding: 12px;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.action-btn span {
    font-size: 0.75rem;
    margin-top: 4px;
}

.action-btn.decline {
    color: var(--danger-color);
    border-color: var(--danger-color);
}

.action-btn.decline:hover {
    background: var(--danger-color);
    color: var(--white);
}

.action-btn.ai-handoff {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.action-btn.ai-handoff:hover {
    background: var(--primary-color);
    color: var(--white);
}

.action-btn.answer {
    color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.action-btn.answer:hover {
    background: var(--secondary-color);
    color: var(--white);
}

.android-features h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--gray-900);
}

.android-feature-item {
    display: flex;
    gap: 20px;
    margin-bottom: 24px;
}

.feature-step {
    width: 40px;
    height: 40px;
    background: var(--gradient-hero);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.feature-content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--gray-900);
}

.feature-content h4 i {
    margin-right: 8px;
    color: var(--primary-color);
}

.feature-content p {
    color: var(--gray-600);
    line-height: 1.6;
}

.cta-box {
    background: var(--gray-50);
    padding: 24px;
    border-radius: 12px;
    margin-top: 32px;
    text-align: center;
}

.cta-box h4 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--gray-900);
}

.cta-box p {
    color: var(--gray-600);
    margin-bottom: 16px;
}

.mobile-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-top: 60px;
}

.mobile-feature {
    text-align: center;
    padding: 24px;
}

.mobile-feature i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.mobile-feature h4 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--gray-900);
}

.mobile-feature p {
    color: var(--gray-600);
}

/* ===========================
   Architecture Section
   =========================== */
.architecture-section {
    background: var(--gray-50);
}

.architecture-diagram {
    display: flex;
    flex-direction: column;
    gap: 40px;
    margin-bottom: 60px;
}

.arch-layer {
    background: var(--white);
    padding: 32px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    border: 2px solid var(--gray-200);
}

.arch-layer h3 {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--gray-900);
}

.arch-components {
    display: flex;
    justify-content: space-around;
    gap: 16px;
    flex-wrap: wrap;
}

.arch-component {
    flex: 1;
    min-width: 150px;
    background: var(--gray-50);
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    border: 2px solid var(--gray-200);
    transition: var(--transition);
}

.arch-component:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: var(--primary-color);
}

.arch-component.highlight {
    background: var(--gradient-hero);
    color: var(--white);
    border-color: transparent;
}

.arch-component i {
    font-size: 2rem;
    margin-bottom: 12px;
    display: block;
}

.arch-component span {
    font-weight: 600;
    font-size: 0.9rem;
}

.arch-arrow {
    text-align: center;
    font-size: 2rem;
    color: var(--primary-color);
}

.tech-specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.tech-spec-card {
    background: var(--white);
    padding: 32px;
    border-radius: 16px;
    border: 2px solid var(--gray-200);
}

.spec-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-hero);
    color: var(--white);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 20px;
}

.tech-spec-card h4 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--gray-900);
}

.tech-spec-card ul {
    list-style: none;
}

.tech-spec-card li {
    padding: 8px 0;
    color: var(--gray-600);
    padding-left: 24px;
    position: relative;
}

.tech-spec-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: 800;
}

/* ===========================
   Impact Section
   =========================== */
.impact-section {
    background: var(--white);
}

.impact-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-bottom: 60px;
}

.metric-card {
    background: var(--gray-50);
    padding: 32px;
    border-radius: 16px;
    text-align: center;
    border: 2px solid var(--gray-200);
    transition: var(--transition);
}

.metric-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.metric-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: var(--gradient-hero);
    color: var(--white);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.metric-value {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    font-family: var(--font-display);
    margin-bottom: 8px;
}

.metric-value::after {
    content: '%';
    font-size: 1.5rem;
    margin-left: 4px;
}

.metric-label {
    font-size: 1rem;
    color: var(--gray-700);
    font-weight: 600;
    margin-bottom: 12px;
}

.metric-trend {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 600;
}

.metric-trend.positive {
    background: rgba(16, 185, 129, 0.1);
    color: var(--secondary-color);
}

.comparison-container h3 {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 40px;
    color: var(--gray-900);
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 40px;
    align-items: center;
}

.comparison-card {
    background: var(--gray-50);
    padding: 32px;
    border-radius: 16px;
    border: 2px solid var(--gray-200);
}

.comparison-card.before {
    border-color: var(--danger-color);
}

.comparison-card.after {
    border-color: var(--secondary-color);
}

.comparison-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.comparison-header i {
    font-size: 2rem;
    color: var(--danger-color);
}

.comparison-header.success i {
    color: var(--secondary-color);
}

.comparison-header h4 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
}

.comparison-list {
    list-style: none;
    margin-top: 24px;
}

.comparison-list li {
    padding: 12px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--gray-700);
}

.comparison-list li i {
    color: var(--danger-color);
}

.comparison-list.success li i {
    color: var(--secondary-color);
}

.comparison-arrow {
    font-size: 3rem;
    color: var(--primary-color);
}

.effectiveness-chart {
    background: var(--white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    margin-top: 60px;
}

.effectiveness-chart h3 {
    text-align: center;
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--gray-900);
}

/* ===========================
   Privacy Section
   =========================== */
.privacy-section {
    background: var(--gray-50);
}

.privacy-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: center;
}

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

.privacy-shield {
    width: 300px;
    height: 300px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.privacy-shield i {
    font-size: 8rem;
    color: var(--primary-color);
    z-index: 2;
    position: relative;
}

.shield-rings {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.ring {
    position: absolute;
    border: 2px solid var(--primary-light);
    border-radius: 50%;
    animation: expandRing 3s infinite ease-out;
}

.ring-1 {
    width: 200px;
    height: 200px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 0s;
}

.ring-2 {
    width: 260px;
    height: 260px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 1s;
}

.ring-3 {
    width: 320px;
    height: 320px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 2s;
}

@keyframes expandRing {
    0% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(0.8);
    }
    100% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(1.2);
    }
}

.privacy-principle {
    display: flex;
    gap: 20px;
    margin-bottom: 32px;
}

.principle-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-hero);
    color: var(--white);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    flex-shrink: 0;
}

.principle-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--gray-900);
}

.principle-content p {
    color: var(--gray-600);
    line-height: 1.6;
}

/* ===========================
   Use Cases Section
   =========================== */
.use-cases-section {
    background: var(--white);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.use-case-card {
    background: var(--gray-50);
    padding: 32px;
    border-radius: 16px;
    border: 2px solid var(--gray-200);
    transition: var(--transition);
}

.use-case-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.use-case-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-hero);
    color: var(--white);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 20px;
}

.use-case-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--gray-900);
}

.use-case-card > p {
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 20px;
}

.use-case-benefits {
    list-style: none;
}

.use-case-benefits li {
    padding: 8px 0;
    color: var(--gray-700);
    display: flex;
    align-items: center;
    gap: 8px;
}

.use-case-benefits i {
    color: var(--secondary-color);
}

/* ===========================
   Demo Section
   =========================== */
.demo-section {
    background: var(--gray-50);
}

.demo-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

.demo-chat-window {
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.chat-header {
    background: var(--gray-900);
    color: var(--white);
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-status {
    display: flex;
    align-items: center;
    gap: 8px;
}

.status-dot {
    width: 10px;
    height: 10px;
    background: var(--secondary-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.chat-controls {
    display: flex;
    gap: 8px;
}

.demo-btn {
    padding: 8px 16px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.demo-btn:hover {
    background: var(--primary-dark);
}

.chat-messages {
    height: 500px;
    padding: 24px;
    overflow-y: auto;
    background: var(--gray-50);
}

.demo-intro {
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--gray-500);
}

.demo-intro i {
    font-size: 4rem;
    margin-bottom: 16px;
}

.chat-footer {
    padding: 20px;
    background: var(--white);
    border-top: 1px solid var(--gray-200);
}

.scam-score-display {
    display: flex;
    align-items: center;
    gap: 12px;
}

.scam-score-display > span:first-child {
    font-weight: 600;
    color: var(--gray-700);
}

.score-bar {
    flex: 1;
    height: 12px;
    background: var(--gray-200);
    border-radius: 6px;
    overflow: hidden;
}

.score-fill {
    height: 100%;
    background: linear-gradient(90deg, #10b981, #f59e0b, #ef4444);
    border-radius: 6px;
    transition: width 0.5s ease-out;
}

.scam-score-display > span:last-child {
    font-weight: 800;
    color: var(--danger-color);
    min-width: 50px;
}

.demo-analysis {
    background: var(--white);
    padding: 32px;
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.demo-analysis h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--gray-900);
}

.analysis-panel {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.analysis-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px;
    background: var(--gray-50);
    border-radius: 8px;
}

.analysis-item i {
    color: var(--primary-color);
    font-size: 1.25rem;
    margin-top: 2px;
}

.analysis-item span {
    flex: 1;
    color: var(--gray-700);
    font-size: 0.9rem;
}

/* ===========================
   Pricing Section
   =========================== */
.pricing-section {
    background: var(--white);
}

.pricing-toggle {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    margin-bottom: 60px;
}

.toggle-label {
    font-weight: 600;
    color: var(--gray-700);
}

.discount-badge {
    display: inline-block;
    padding: 4px 8px;
    background: var(--secondary-color);
    color: var(--white);
    border-radius: 4px;
    font-size: 0.75rem;
    margin-left: 8px;
}

.toggle-switch {
    position: relative;
    width: 60px;
    height: 32px;
    cursor: pointer;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gray-300);
    border-radius: 16px;
    transition: var(--transition);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 24px;
    height: 24px;
    left: 4px;
    bottom: 4px;
    background: var(--white);
    border-radius: 50%;
    transition: var(--transition);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--primary-color);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(28px);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-bottom: 40px;
}

.pricing-card {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: 16px;
    padding: 40px 32px;
    transition: var(--transition);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.popular-badge {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-hero);
    color: var(--white);
    padding: 8px 24px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 700;
}

.pricing-header {
    text-align: center;
    margin-bottom: 24px;
}

.pricing-header h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--gray-900);
}

.pricing-header p {
    color: var(--gray-600);
}

.pricing-price {
    text-align: center;
    margin-bottom: 32px;
}

.currency {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-700);
    vertical-align: super;
}

.amount {
    font-size: 4rem;
    font-weight: 800;
    color: var(--primary-color);
    font-family: var(--font-display);
}

.period {
    font-size: 1.125rem;
    color: var(--gray-600);
}

.custom-price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    font-family: var(--font-display);
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    padding: 12px 0;
    color: var(--gray-700);
    display: flex;
    align-items: center;
    gap: 12px;
}

.pricing-features li i {
    color: var(--secondary-color);
    font-size: 1.125rem;
}

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

.pricing-features li.disabled i {
    color: var(--gray-300);
}

.pricing-footer {
    text-align: center;
    padding-top: 40px;
}

.pricing-footer p {
    color: var(--gray-600);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.pricing-footer i {
    color: var(--secondary-color);
    font-size: 1.25rem;
}

/* ===========================
   FAQ Section
   =========================== */
.faq-section {
    background: var(--gray-50);
}

.faq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.faq-item {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 16px;
}

.faq-question {
    padding: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: var(--transition);
}

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

.faq-question h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
}

.faq-question i {
    color: var(--primary-color);
    transition: var(--transition);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

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

.faq-answer p {
    padding: 0 24px 24px;
    color: var(--gray-600);
    line-height: 1.8;
}

/* ===========================
   CTA Section
   =========================== */
.cta-section {
    background: var(--gradient-hero);
    color: var(--white);
}

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

.cta-content h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 16px;
    font-family: var(--font-display);
}

.cta-content > p {
    font-size: 1.25rem;
    margin-bottom: 32px;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

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

.cta-buttons .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.cta-buttons .btn-outline {
    border-color: var(--white);
    color: var(--white);
}

.cta-buttons .btn-outline:hover {
    background: var(--white);
    color: var(--primary-color);
}

.cta-note {
    font-size: 0.875rem;
    opacity: 0.8;
}

/* ===========================
   Footer
   =========================== */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
}

.footer-logo i {
    font-size: 2rem;
    color: var(--primary-light);
}

.footer-column p {
    margin-bottom: 20px;
    line-height: 1.8;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    color: var(--gray-300);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

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

.footer-column h4 {
    color: var(--white);
    font-weight: 700;
    margin-bottom: 16px;
}

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

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column ul li a {
    color: var(--gray-400);
    text-decoration: none;
    transition: var(--transition);
}

.footer-column ul li a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-certifications {
    display: flex;
    gap: 24px;
}

.footer-certifications span {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
}

.footer-certifications i {
    color: var(--secondary-color);
}

/* ===========================
   Responsive Design
   =========================== */
@media (max-width: 1024px) {
    .section-title {
        font-size: 2.5rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-section {
        flex-direction: column;
    }
    
    .android-content,
    .privacy-content,
    .fraud-types-grid,
    .comparison-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }
    
    .solution-flow {
        flex-direction: column;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .demo-container {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .comparison-arrow {
        transform: rotate(90deg);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .nav-actions {
        display: none;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .section-padding {
        padding: 60px 0;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn-lg {
        width: 100%;
    }
    
    .phone-frame {
        width: 280px;
    }
    
    .phone-screen {
        height: 500px;
    }
}

/* ===========================
   Utility Classes
   =========================== */
.text-center {
    text-align: center;
}

.mt-1 {
    margin-top: 8px;
}

.mt-2 {
    margin-top: 16px;
}

.mt-3 {
    margin-top: 24px;
}

.mb-1 {
    margin-bottom: 8px;
}

.mb-2 {
    margin-bottom: 16px;
}

.mb-3 {
    margin-bottom: 24px;
}

.hidden {
    display: none !important;
}

/* ===========================
   Animations
   =========================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Print Styles */
@media print {
    .navbar,
    .footer,
    .cta-section,
    .animated-bg {
        display: none;
    }
}