/* ============================================
   AI Rise Works - Main Stylesheet
   Theme: Minimal, Professional, Trustworthy
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary-color: #0f172a;
    --accent-color: #06b6d4;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
    --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    
    /* Neutral Colors */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* Status Colors */
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    
    /* Feature Colors */
    --purple: #8b5cf6;
    --green: #10b981;
    --orange: #f59e0b;
    --cyan: #06b6d4;
    --pink: #ec4899;
    
    /* Typography */
    --font-family: 'Sarabun', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --container-width: 1200px;
    --section-padding: 80px;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    
    /* 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);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.7;
    color: var(--gray-700);
    background-color: #fff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   Header & Navigation
   ============================================ */
.header {
    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 var(--gray-100);
    transition: all var(--transition-normal);
}

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

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-color);
}

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

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

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--gray-600);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--primary-color);
    background: var(--gray-50);
}

.nav-link.active {
    color: var(--primary-color);
    background: rgba(37, 99, 235, 0.08);
}

.nav-link .material-icons-outlined {
    font-size: 1.2rem;
}

.nav-link-cta {
    background: var(--gradient-primary);
    color: #fff !important;
}

.nav-link-cta:hover,
.nav-link-cta.active {
    background: var(--primary-dark);
    color: #fff !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--gray-700);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn .material-icons,
.btn .material-icons-outlined {
    font-size: 1.25rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.35);
}

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

.btn-outline:hover {
    background: var(--primary-color);
    color: #fff;
}

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

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

.btn-outline-white {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
}

.btn-block {
    width: 100%;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    padding: 140px 0 100px;
    background: var(--gray-50);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.hero .container {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 24px;
}

.hero-badge .material-icons {
    font-size: 1rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.35;
    color: var(--secondary-color);
    margin-bottom: 24px;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    padding: 0.1em 0;
    line-height: 1.4;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--gray-600);
    margin-bottom: 36px;
    max-width: 540px;
}

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

.hero-visual {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.hero-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-normal);
}

.hero-card:hover {
    transform: translateX(10px);
}

.hero-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.hero-card-icon .material-icons {
    color: #fff;
    font-size: 1.75rem;
}

.hero-card-icon.purple {
    background: linear-gradient(135deg, #8b5cf6, #a78bfa);
}

.hero-card-icon.green {
    background: linear-gradient(135deg, #10b981, #34d399);
}

.hero-card-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 4px;
}

.hero-card-content p {
    font-size: 0.9rem;
    color: var(--gray-500);
}

/* ============================================
   Stats Section
   ============================================ */
.stats {
    padding: 60px 0;
    background: var(--gradient-dark);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
}

.stat-item {
    color: #fff;
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 8px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 1rem;
    color: var(--gray-300);
}

/* ============================================
   Sections
   ============================================ */
.section {
    padding: var(--section-padding) 0;
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 60px;
}

.section-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 16px;
}

.section-description {
    font-size: 1.1rem;
    color: var(--gray-500);
}

.section-cta {
    text-align: center;
    margin-top: 48px;
}

/* ============================================
   Services Grid (Home)
   ============================================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.service-card {
    padding: 36px;
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

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

.service-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-md);
    margin-bottom: 24px;
}

.service-icon .material-icons {
    font-size: 2rem;
    color: var(--primary-color);
}

.service-icon.purple {
    background: rgba(139, 92, 246, 0.1);
}
.service-icon.purple .material-icons {
    color: var(--purple);
}

.service-icon.green {
    background: rgba(16, 185, 129, 0.1);
}
.service-icon.green .material-icons {
    color: var(--green);
}

.service-icon.orange {
    background: rgba(245, 158, 11, 0.1);
}
.service-icon.orange .material-icons {
    color: var(--orange);
}

.service-icon.cyan {
    background: rgba(6, 182, 212, 0.1);
}
.service-icon.cyan .material-icons {
    color: var(--cyan);
}

.service-icon.pink {
    background: rgba(236, 72, 153, 0.1);
}
.service-icon.pink .material-icons {
    color: var(--pink);
}

.service-card h3 {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 12px;
}

.service-card p {
    font-size: 0.95rem;
    color: var(--gray-500);
    margin-bottom: 20px;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--primary-color);
}

.service-link:hover {
    gap: 10px;
}

.service-link .material-icons {
    font-size: 1.1rem;
    transition: transform var(--transition-fast);
}

/* ============================================
   Products Grid (Home)
   ============================================ */
.products-preview {
    background: var(--gray-50);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.product-card {
    padding: 36px;
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    position: relative;
    transition: all var(--transition-normal);
}

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

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

.product-badge {
    position: absolute;
    top: -12px;
    left: 24px;
    padding: 4px 12px;
    background: var(--gradient-primary);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 50px;
}

.product-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-md);
    margin-bottom: 24px;
}

.product-icon .material-icons {
    font-size: 2rem;
    color: var(--primary-color);
}

.product-icon.purple {
    background: rgba(139, 92, 246, 0.1);
}
.product-icon.purple .material-icons {
    color: var(--purple);
}

.product-icon.green {
    background: rgba(16, 185, 129, 0.1);
}
.product-icon.green .material-icons {
    color: var(--green);
}

.product-card h3 {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 12px;
}

.product-card > p {
    font-size: 0.95rem;
    color: var(--gray-500);
    margin-bottom: 20px;
}

.product-features {
    margin-bottom: 24px;
}

.product-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 0.9rem;
    color: var(--gray-600);
}

.product-features .material-icons {
    font-size: 1.1rem;
    color: var(--success-color);
}

/* ============================================
   Why Us Section
   ============================================ */
.why-us-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.why-us-item {
    text-align: center;
    padding: 32px 24px;
}

.why-us-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 50%;
    margin-bottom: 24px;
}

.why-us-icon .material-icons {
    font-size: 2.5rem;
    color: var(--primary-color);
}

.why-us-icon.purple {
    background: rgba(139, 92, 246, 0.1);
}
.why-us-icon.purple .material-icons {
    color: var(--purple);
}

.why-us-icon.green {
    background: rgba(16, 185, 129, 0.1);
}
.why-us-icon.green .material-icons {
    color: var(--green);
}

.why-us-icon.orange {
    background: rgba(245, 158, 11, 0.1);
}
.why-us-icon.orange .material-icons {
    color: var(--orange);
}

.why-us-item h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 12px;
}

.why-us-item p {
    font-size: 0.95rem;
    color: var(--gray-500);
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    padding: 80px 0;
    background: var(--gradient-primary);
}

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

.cta-content h2 {
    font-size: 2.25rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 32px;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* ============================================
   Page Header
   ============================================ */
.page-header {
    padding: 140px 0 60px;
    background: var(--gray-50);
    text-align: center;
}

.page-title {
    font-size: 2.75rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 16px;
}

.page-description {
    font-size: 1.2rem;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   Services Detail (Services Page)
   ============================================ */
.service-detail {
    padding: 60px 0;
    border-bottom: 1px solid var(--gray-100);
}

.service-detail:last-of-type {
    border-bottom: none;
}

.service-detail-content {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 48px;
    align-items: start;
}

.service-detail.reverse .service-detail-content {
    grid-template-columns: 1fr 120px;
}

.service-detail.reverse .service-detail-icon {
    order: 2;
}

.service-detail-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100px;
    height: 100px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-lg);
}

.service-detail-icon .material-icons {
    font-size: 3rem;
    color: var(--primary-color);
}

.service-detail-icon.purple {
    background: rgba(139, 92, 246, 0.1);
}
.service-detail-icon.purple .material-icons {
    color: var(--purple);
}

.service-detail-icon.green {
    background: rgba(16, 185, 129, 0.1);
}
.service-detail-icon.green .material-icons {
    color: var(--green);
}

.service-detail-icon.orange {
    background: rgba(245, 158, 11, 0.1);
}
.service-detail-icon.orange .material-icons {
    color: var(--orange);
}

.service-detail-icon.cyan {
    background: rgba(6, 182, 212, 0.1);
}
.service-detail-icon.cyan .material-icons {
    color: var(--cyan);
}

.service-detail-icon.pink {
    background: rgba(236, 72, 153, 0.1);
}
.service-detail-icon.pink .material-icons {
    color: var(--pink);
}

.service-detail-text h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 16px;
}

.service-detail-text > p {
    font-size: 1.05rem;
    color: var(--gray-600);
    margin-bottom: 24px;
}

.feature-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 0.95rem;
    color: var(--gray-700);
}

.feature-list .material-icons {
    font-size: 1.1rem;
    color: var(--success-color);
}

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

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.process-item {
    text-align: center;
    padding: 32px 24px;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    position: relative;
}

.process-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    color: #fff;
    font-size: 1.25rem;
    font-weight: 700;
    border-radius: 50%;
    margin-bottom: 20px;
}

.process-item h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 12px;
}

.process-item p {
    font-size: 0.9rem;
    color: var(--gray-500);
}

/* ============================================
   Products Detail (Products Page)
   ============================================ */
.product-detail {
    padding: 60px 0;
    border-bottom: 1px solid var(--gray-100);
}

.product-detail:last-of-type {
    border-bottom: none;
}

.product-detail-header {
    display: flex;
    align-items: center;
    gap: 32px;
    margin-bottom: 48px;
}

.product-detail-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 96px;
    height: 96px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-lg);
    flex-shrink: 0;
}

.product-detail-icon .material-icons {
    font-size: 3rem;
    color: var(--primary-color);
}

.product-detail-icon.purple {
    background: rgba(139, 92, 246, 0.1);
}
.product-detail-icon.purple .material-icons {
    color: var(--purple);
}

.product-detail-icon.green {
    background: rgba(16, 185, 129, 0.1);
}
.product-detail-icon.green .material-icons {
    color: var(--green);
}

.product-detail-icon.orange {
    background: rgba(249, 115, 22, 0.1);
}
.product-detail-icon.orange .material-icons {
    color: #f97316;
}

.product-detail-icon.cyan {
    background: rgba(6, 182, 212, 0.1);
}
.product-detail-icon.cyan .material-icons {
    color: #06b6d4;
}

.product-detail-icon.pink {
    background: rgba(236, 72, 153, 0.1);
}
.product-detail-icon.pink .material-icons {
    color: #ec4899;
}

.product-badge.new {
    background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
}

.product-detail-title .product-badge {
    position: static;
    display: inline-block;
    margin-bottom: 8px;
}

.product-detail-title h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 8px;
}

.product-detail-title > p {
    font-size: 1.1rem;
    color: var(--gray-500);
}

.product-description h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 12px;
}

.product-description p {
    font-size: 1rem;
    color: var(--gray-600);
    margin-bottom: 32px;
}

.product-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.product-feature-item {
    padding: 24px;
    background: var(--gray-50);
    border-radius: var(--radius-md);
    text-align: center;
}

.product-feature-item .material-icons {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.product-feature-item h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 8px;
}

.product-feature-item p {
    font-size: 0.9rem;
    color: var(--gray-500);
}

/* Pricing */
.product-pricing {
    padding: 48px;
    background: var(--gray-50);
    border-radius: var(--radius-xl);
}

.product-pricing > h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--secondary-color);
    text-align: center;
    margin-bottom: 32px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.pricing-card {
    padding: 32px;
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    text-align: center;
    position: relative;
    transition: all var(--transition-normal);
}

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

.pricing-card.featured {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
    transform: scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 16px;
    background: var(--gradient-primary);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 50px;
}

.pricing-card h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 16px;
}

.price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 24px;
}

.price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--gray-500);
}

.pricing-card ul {
    margin-bottom: 24px;
    text-align: left;
}

.pricing-card ul li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    font-size: 0.9rem;
    color: var(--gray-600);
    border-bottom: 1px solid var(--gray-100);
}

.pricing-card ul li:last-child {
    border-bottom: none;
}

.pricing-card ul .material-icons {
    font-size: 1rem;
    color: var(--success-color);
}

/* ============================================
   About Page
   ============================================ */
.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-intro-content .section-badge {
    margin-bottom: 16px;
}

.about-intro-content h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 24px;
}

.about-intro-content p {
    font-size: 1.05rem;
    color: var(--gray-600);
    margin-bottom: 16px;
}

.about-intro-visual {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.about-card {
    padding: 32px;
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.about-card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.about-card-icon .material-icons {
    font-size: 1.75rem;
    color: var(--primary-color);
}

.about-card-icon.purple {
    background: rgba(139, 92, 246, 0.1);
}
.about-card-icon.purple .material-icons {
    color: var(--purple);
}

.about-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 10px;
}

.about-card p {
    font-size: 0.95rem;
    color: var(--gray-500);
}

/* Values Section */
.values-section {
    background: var(--gray-50);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.value-item {
    padding: 32px;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
}

.value-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 50%;
    margin-bottom: 20px;
}

.value-icon .material-icons {
    font-size: 2rem;
    color: var(--primary-color);
}

.value-icon.purple {
    background: rgba(139, 92, 246, 0.1);
}
.value-icon.purple .material-icons {
    color: var(--purple);
}

.value-icon.green {
    background: rgba(16, 185, 129, 0.1);
}
.value-icon.green .material-icons {
    color: var(--green);
}

.value-icon.orange {
    background: rgba(245, 158, 11, 0.1);
}
.value-icon.orange .material-icons {
    color: var(--orange);
}

.value-item h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 12px;
}

.value-item p {
    font-size: 0.9rem;
    color: var(--gray-500);
}

/* Team Section */
.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin-bottom: 48px;
}

.team-member {
    text-align: center;
    padding: 32px 24px;
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

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

.team-member-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100px;
    height: 100px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 50%;
    margin-bottom: 20px;
}

.team-member-avatar .material-icons {
    font-size: 3rem;
    color: var(--primary-color);
}

.team-member-avatar.purple {
    background: rgba(139, 92, 246, 0.1);
}
.team-member-avatar.purple .material-icons {
    color: var(--purple);
}

.team-member-avatar.green {
    background: rgba(16, 185, 129, 0.1);
}
.team-member-avatar.green .material-icons {
    color: var(--green);
}

.team-member-avatar.orange {
    background: rgba(245, 158, 11, 0.1);
}
.team-member-avatar.orange .material-icons {
    color: var(--orange);
}

.team-member h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 4px;
}

.team-member-role {
    font-size: 0.9rem;
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 8px;
}

.team-member-desc {
    font-size: 0.85rem;
    color: var(--gray-500);
}

.team-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    padding: 32px;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
}

.team-stat {
    text-align: center;
}

.team-stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.team-stat-label {
    font-size: 0.9rem;
    color: var(--gray-500);
}

/* Tech Section */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.tech-category {
    padding: 32px;
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
}

.tech-category h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-color);
}

.tech-items {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tech-item {
    padding: 8px 16px;
    background: var(--gray-50);
    color: var(--gray-700);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 50px;
}

/* ============================================
   Contact Page
   ============================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
}

.contact-info h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 16px;
}

.contact-info > p {
    font-size: 1rem;
    color: var(--gray-500);
    margin-bottom: 32px;
}

.contact-methods {
    margin-bottom: 40px;
}

.contact-method {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px 0;
    border-bottom: 1px solid var(--gray-100);
}

.contact-method:last-child {
    border-bottom: none;
}

.contact-method-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.contact-method-icon .material-icons {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.contact-method-content h3 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-500);
    margin-bottom: 4px;
}

.contact-method-content p {
    font-size: 1rem;
    color: var(--secondary-color);
    font-weight: 500;
}

.contact-social h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 16px;
}

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

.social-link-large {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--gray-100);
    border-radius: var(--radius-md);
    color: var(--gray-600);
    transition: all var(--transition-fast);
}

.social-link-large:hover {
    background: var(--primary-color);
    color: #fff;
}

/* Contact Form */
.contact-form-wrapper {
    padding: 48px;
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.contact-form-wrapper h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 32px;
}

.alert {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.alert .material-icons {
    font-size: 1.5rem;
}

.alert p {
    font-size: 0.95rem;
    font-weight: 500;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.form-group label .required {
    color: var(--error-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-family: var(--font-family);
    font-size: 1rem;
    color: var(--gray-800);
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-400);
}

.form-group textarea {
    resize: vertical;
    min-height: 140px;
}

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

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

.faq-item {
    margin-bottom: 16px;
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    cursor: pointer;
    transition: background var(--transition-fast);
}

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

.faq-question h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--secondary-color);
    padding-right: 16px;
}

.faq-icon {
    color: var(--gray-400);
    transition: transform var(--transition-normal);
}

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

.faq-answer {
    display: none;
    padding: 0 24px 20px;
}

.faq-item.active .faq-answer {
    display: block;
}

.faq-answer p {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.8;
}

/* ============================================
   404 Page
   ============================================ */
.error-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 0;
}

.error-content {
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
}

.error-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 120px;
    height: 120px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 50%;
    margin-bottom: 32px;
}

.error-icon .material-icons {
    font-size: 4rem;
    color: var(--primary-color);
}

.error-code {
    font-size: 6rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 16px;
}

.error-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 16px;
}

.error-description {
    font-size: 1.05rem;
    color: var(--gray-500);
    margin-bottom: 32px;
}

.error-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--gray-900);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.25fr;
    gap: 48px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand .logo-text {
    color: #fff;
    -webkit-text-fill-color: #fff;
}

.footer-description {
    font-size: 0.95rem;
    color: var(--gray-400);
    margin-bottom: 24px;
    line-height: 1.8;
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    border-radius: var(--radius-sm);
    color: var(--gray-400);
    transition: all var(--transition-fast);
}

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

.footer-links h4,
.footer-contact h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 24px;
}

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

.footer-links ul li a {
    font-size: 0.95rem;
    color: var(--gray-400);
    transition: color var(--transition-fast);
}

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

.footer-contact ul li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 0.95rem;
    color: var(--gray-400);
}

.footer-contact ul li .material-icons-outlined {
    font-size: 1.25rem;
    color: var(--primary-color);
}

.footer-bottom {
    padding: 24px 0;
    border-top: 1px solid var(--gray-800);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.9rem;
    color: var(--gray-500);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .container {
        padding: 0 24px;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
    }
    
    .hero-visual {
        display: none;
    }
    
    .hero-title {
        font-size: 2.75rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-grid,
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .why-us-grid,
    .values-grid,
    .team-grid,
    .tech-grid,
    .process-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .product-features-grid,
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .about-intro {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 24px;
        border-top: 1px solid var(--gray-100);
        box-shadow: var(--shadow-lg);
        transform: translateY(-150%);
        opacity: 0;
        transition: all var(--transition-normal);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .nav-link {
        width: 100%;
        justify-content: flex-start;
        padding: 14px 16px;
    }
    
    .hero {
        padding: 120px 0 60px;
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-description {
        font-size: 1.05rem;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .page-title {
        font-size: 2.25rem;
    }
    
    .services-grid,
    .products-grid,
    .why-us-grid,
    .values-grid,
    .team-grid,
    .tech-grid,
    .process-grid,
    .product-features-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        gap: 24px;
    }
    
    .stat-number {
        font-size: 2.25rem;
    }
    
    .service-detail-content {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .service-detail.reverse .service-detail-content {
        grid-template-columns: 1fr;
    }
    
    .service-detail.reverse .service-detail-icon {
        order: 0;
    }
    
    .service-detail-icon {
        width: 80px;
        height: 80px;
    }
    
    .service-detail-icon .material-icons {
        font-size: 2.5rem;
    }
    
    .feature-list {
        grid-template-columns: 1fr;
    }
    
    .product-detail-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-form-wrapper {
        padding: 32px 24px;
    }
    
    .team-stats {
        flex-wrap: wrap;
        gap: 32px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .cta-actions,
    .hero-actions,
    .error-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.85rem;
    }
    
    .section-title {
        font-size: 1.65rem;
    }
    
    .page-title {
        font-size: 1.85rem;
    }
    
    .error-code {
        font-size: 4rem;
    }
}

/* ===== Report Preview Section ===== */
.report-preview {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.report-samples {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.report-card {
    background: var(--white);
    border-radius: 1rem;
    padding: 1.25rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--gray-200);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.report-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.report-card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--gray-700);
    font-size: 0.95rem;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--gray-100);
}

.report-card-header .material-icons-outlined {
    color: var(--primary);
    font-size: 1.25rem;
}

.report-card-footer {
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--gray-100);
    text-align: right;
}

.sample-badge {
    display: inline-block;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Chart Container */
.chart-container {
    position: relative;
    height: 180px;
    width: 100%;
}

.chart-container.chart-doughnut {
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Report Note */
.report-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
    padding: 1rem;
    background: rgba(37, 99, 235, 0.05);
    border-radius: 0.75rem;
    color: var(--gray-600);
    font-size: 0.9rem;
}

.report-note .material-icons {
    color: var(--primary);
    font-size: 1.25rem;
}

/* Report Preview Responsive */
@media (max-width: 1024px) {
    .report-samples {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .report-samples {
        grid-template-columns: 1fr;
    }
    
    .chart-container {
        height: 160px;
    }
    
    .report-note {
        flex-direction: column;
        text-align: center;
        gap: 0.25rem;
    }
}