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

:root {
    /* Modern Beautiful Color Palette */
    --primary-gradient: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    --secondary-gradient: linear-gradient(135deg, #0891b2 0%, #0e7490 100%);
    --accent-gradient: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
    --success-gradient: linear-gradient(135deg, #059669 0%, #047857 100%);
    --purple-gradient: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%);
    --pink-gradient: linear-gradient(135deg, #ec4899 0%, #db2777 100%);
    
    /* Solid Colors */
    --primary-color: #2563eb;
    --secondary-color: #0891b2;
    --accent-color: #f97316;
    --success-color: #059669;
    --purple-color: #7c3aed;
    --pink-color: #ec4899;
    
    /* Text Colors */
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-tertiary: #64748b;
    --text-quaternary: #94a3b8;
    --text-white: #ffffff;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-dark: #0f172a;
    --bg-glass: rgba(255, 255, 255, 0.8);
    
    /* Border & Surfaces */
    --border-light: #e2e8f0;
    --border-medium: #cbd5e1;
    --surface-elevated: rgba(255, 255, 255, 0.95);
    
    /* Shadows */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-3xl: 2rem;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Typography */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
}

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

body {
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    font-size: var(--font-size-base);
    font-weight: 400;
    letter-spacing: 0.01em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--surface-elevated);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    z-index: 1000;
    border-bottom: 1px solid var(--border-light);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
}

.navbar {
    padding: var(--spacing-lg) 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: var(--font-size-xl);
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
    text-decoration: none;
    transition: transform 0.2s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.logo-icon {
    filter: drop-shadow(0 4px 12px rgba(99, 102, 241, 0.25));
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.logo:hover .logo-icon {
    filter: drop-shadow(0 6px 16px rgba(99, 102, 241, 0.4));
    transform: translateY(-1px);
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: var(--font-size-sm);
    position: relative;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    letter-spacing: 0.01em;
}

.nav-link:hover {
    color: var(--primary-color);
    background: rgba(37, 99, 235, 0.08);
    transform: translateY(-1px);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 1px;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

.nav-link.active {
    color: var(--primary-color);
    background: rgba(37, 99, 235, 0.1);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    /* Fallback background cho iOS khi image không load */
    background: linear-gradient(135deg, #1e293b 0%, #334155 50%, #475569 100%);
    background-image: url('../images/top.jpeg');
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    position: relative;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

/* CHỈ target iOS Safari - sử dụng media query chính xác hơn */
@media screen and (max-device-width: 1024px) and (-webkit-min-device-pixel-ratio: 1) {
    .hero {
        background-attachment: scroll !important;
        -webkit-transform: translate3d(0, 0, 0);
        transform: translate3d(0, 0, 0);
    }
}

/* Backup cho iOS Safari cụ thể */
@media only screen and (device-width: 375px) and (device-height: 667px) and (-webkit-device-pixel-ratio: 2),
       only screen and (device-width: 375px) and (device-height: 812px) and (-webkit-device-pixel-ratio: 3),
       only screen and (device-width: 414px) and (device-height: 896px) and (-webkit-device-pixel-ratio: 2),
       only screen and (device-width: 414px) and (device-height: 896px) and (-webkit-device-pixel-ratio: 3) {
    .hero {
        background-attachment: scroll !important;
    }
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        rgba(0, 0, 0, 0.4) 0%,
        rgba(0, 0, 0, 0.2) 50%,
        rgba(0, 0, 0, 0.4) 100%
    );
    pointer-events: none;
    z-index: 1;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    animation: slideInLeft 1s ease-out;
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-xl);
    color: #ffffff;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    letter-spacing: -0.02em;
}

.highlight {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    font-weight: 900;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 8px;
    background: linear-gradient(90deg, #fbbf24 0%, #f59e0b 100%);
    opacity: 0.6;
    border-radius: 4px;
    z-index: -1;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: #f1f5f9;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.4);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
    font-weight: 400;
    max-width: 42rem;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.stat-item {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--spacing-xl);
    border-radius: var(--radius-2xl);
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    background: rgba(255, 255, 255, 1);
}

.stat-item:nth-child(1) {
    border-top: 3px solid var(--primary-color);
}

.stat-item:nth-child(2) {
    border-top: 3px solid var(--secondary-color);
}

.stat-item:nth-child(3) {
    border-top: 3px solid var(--accent-color);
}

.stat-number {
    display: block;
    font-size: var(--font-size-4xl);
    font-weight: 800;
    line-height: 1;
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.02em;
}

.stat-item:nth-child(1) .stat-number {
    color: #2563eb;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-item:nth-child(2) .stat-number {
    color: #0891b2;
    background: linear-gradient(135deg, #0891b2 0%, #0e7490 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-item:nth-child(3) .stat-number {
    color: #f97316;
    background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    font-weight: 500;
}

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

.btn {
    padding: var(--spacing-lg) var(--spacing-2xl);
    border-radius: var(--radius-xl);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.01em;
    min-width: 160px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

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

.btn-primary {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: #ffffff;
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.4);
    border: 1px solid transparent;
    font-weight: 700;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(245, 158, 11, 0.6);
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    color: #1e293b;
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    font-weight: 600;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 1);
    color: #2563eb;
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15);
    border-color: #2563eb;
}

.hero-visual {
    position: relative;
    animation: slideInRight 1s ease-out;
}

.floating-elements {
    position: relative;
    height: 400px;
}

.floating-card {
    position: absolute;
    background: var(--surface-elevated);
    backdrop-filter: blur(20px);
    padding: var(--spacing-xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    text-align: center;
    animation: float 6s ease-in-out infinite;
    border: 1px solid var(--border-light);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.floating-card:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: var(--shadow-2xl);
}

.floating-card:nth-child(1) {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.floating-card:nth-child(2) {
    top: 25%;
    right: 15%;
    animation-delay: 1s;
}

.floating-card:nth-child(3) {
    bottom: 15%;
    left: 5%;
    animation-delay: 2s;
}

.floating-card i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.floating-card:nth-child(1) i {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.floating-card:nth-child(2) i {
    background: var(--success-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.floating-card:nth-child(3) i {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.floating-card span {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.01em;
}

/* Services Section */
.services {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-primary);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    max-width: 48rem;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    position: relative;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.section-title::after {
    content: '';
    width: 80px;
    height: 4px;
    background: var(--primary-gradient);
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: var(--radius-sm);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-tertiary);
    max-width: 42rem;
    margin: 0 auto;
    line-height: 1.6;
    font-weight: 400;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--bg-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-3xl);
    box-shadow: var(--shadow-lg);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    transform: translateY(-4px);
    transition: transform 0.3s ease;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.service-card:hover::before {
    transform: translateY(0);
}

.service-card:nth-child(1)::before {
    background: var(--primary-gradient);
}

.service-card:nth-child(2)::before {
    background: var(--purple-gradient);
}

.service-card:nth-child(3)::before {
    background: var(--success-gradient);
}

.service-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-xl) auto;
    position: relative;
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.service-card:nth-child(1) .service-icon {
    background: var(--primary-gradient);
}

.service-card:nth-child(2) .service-icon {
    background: var(--purple-gradient);
}

.service-card:nth-child(3) .service-icon {
    background: var(--success-gradient);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.25);
}

.service-icon i {
    font-size: 2.5rem;
    color: var(--text-white);
}

.service-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 1rem;
    text-align: center;
}

.service-description {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.service-features {
    list-style: none;
}

.service-features li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    color: #555;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    background: var(--success-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: bold;
}

/* Comparison Section */
.comparison {
    padding: 80px 0;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #f0fdf4 100%);
    position: relative;
}

.comparison::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="comparisonPattern" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="%23000" opacity="0.03"/></pattern></defs><rect width="100" height="100" fill="url(%23comparisonPattern)"/></svg>');
    pointer-events: none;
}

.comparison-container {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.comparison-side {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-3xl);
    padding: var(--spacing-2xl);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    position: relative;
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.comparison-side:hover {
    transform: translateY(-5px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
    background: rgba(255, 255, 255, 1);
}

.comparison-side.traditional {
    border-left: 4px solid #ef4444;
    border-top: 1px solid #fef2f2;
}

.comparison-side.modern {
    border-left: 4px solid #10b981;
    border-top: 1px solid #f0fdf4;
}

.comparison-header {
    text-align: center;
    margin-bottom: 2rem;
}

.comparison-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 2rem;
    color: white;
}

.traditional-icon {
    background: linear-gradient(135deg, #ef4444 0%, #f87171 100%);
    box-shadow: 0 8px 25px rgba(239, 68, 68, 0.3);
}

.modern-icon {
    background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.3);
}

.comparison-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #1e293b;
}

.comparison-subtitle {
    color: #64748b;
    font-size: 0.9rem;
    font-weight: 500;
}

.comparison-metrics {
    margin-bottom: 2rem;
}

.metric-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.metric-item.negative {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.08) 0%, rgba(248, 113, 113, 0.08) 100%);
    border-left: 3px solid #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.1);
    border-left-width: 3px;
}

.metric-item.positive {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.08) 0%, rgba(52, 211, 153, 0.08) 100%);
    border-left: 3px solid #10b981;
    border: 1px solid rgba(16, 185, 129, 0.1);
    border-left-width: 3px;
}

.metric-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.metric-item.negative .metric-icon {
    background: linear-gradient(135deg, #ef4444 0%, #f87171 100%);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.metric-item.positive .metric-icon {
    background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.metric-content {
    flex: 1;
}

.metric-value {
    display: block;
    font-size: 1.3rem;
    font-weight: 700;
    color: #1e293b;
}

.metric-label {
    display: block;
    font-size: 0.9rem;
    color: #64748b;
    font-weight: 500;
}

.metric-savings {
    display: inline-block;
    background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-top: 0.3rem;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.comparison-features {
    margin-top: var(--spacing-xl);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.comparison-features h4 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: #1e293b;
}

.comparison-features ul {
    list-style: none;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
}

.comparison-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: #475569;
    min-height: 44px;
    font-weight: 500;
}

.comparison-features .fa-times {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.comparison-features .fa-check {
    color: #10b981;
    background: rgba(16, 185, 129, 0.1);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.vs-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 0;
}

.vs-circle {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
    animation: pulse 2s infinite;
    border: 3px solid rgba(255, 255, 255, 0.2);
}

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

.roi-calculator {
    margin-top: 3rem;
    background: var(--background-white);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: var(--shadow-medium);
    text-align: center;
}

.roi-calculator h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.roi-item h4 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.roi-comparison {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.roi-traditional,
.roi-ai {
    flex: 1;
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
}

.roi-traditional {
    background: linear-gradient(135deg, rgba(229, 62, 62, 0.1) 0%, rgba(253, 121, 168, 0.1) 100%);
    border: 2px solid rgba(229, 62, 62, 0.3);
}

.roi-ai {
    background: linear-gradient(135deg, rgba(67, 233, 123, 0.1) 0%, rgba(56, 249, 215, 0.1) 100%);
    border: 2px solid rgba(67, 233, 123, 0.3);
}

.roi-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.roi-cost {
    display: block;
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-dark);
}

.roi-arrow {
    font-size: 2rem;
    color: var(--text-light);
    animation: moveRight 2s ease-in-out infinite;
}

@keyframes moveRight {
    0%, 100% {
        transform: translateX(0);
    }
    50% {
        transform: translateX(10px);
    }
}

.roi-savings {
    background: var(--warm-gradient);
    color: white;
    padding: 1rem 2rem;
    border-radius: 50px;
    display: inline-block;
    font-size: 1.2rem;
    box-shadow: var(--shadow-medium);
}

.metric-warning {
    display: block;
    font-size: var(--font-size-xs);
    color: #e53e3e;
    font-weight: 600;
    margin-top: 0.25rem;
}

/* Performance Chart */
.performance-chart {
    margin-top: 2rem;
    padding: 3rem 2rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-3xl);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Features Comparison */
.features-comparison {
    margin-top: 3rem;
}

.chart-header {
    text-align: center;
    margin-bottom: 3rem;
}

.chart-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.chart-subtitle {
    font-size: var(--font-size-lg);
    color: #64748b;
    font-weight: 500;
}

.chart-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.chart-item {
    background: #ffffff;
    padding: 2rem;
    border-radius: var(--radius-2xl);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid #f1f5f9;
}

.chart-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 35px rgba(0, 0, 0, 0.12);
}

.chart-info {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
    gap: 0.75rem;
}

.chart-info i {
    font-size: 1.5rem;
    background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.metric-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: #1a1a1a;
}

.chart-bars {
    position: relative;
}

.bar-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1rem;
}

.bar {
    position: relative;
    height: 60px;
    background: #f1f5f9;
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
}

.bar-fill {
    height: 100%;
    border-radius: var(--radius-lg);
    position: relative;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 2s cubic-bezier(0.4, 0, 0.2, 1);
}

.chart-item.animate .traditional-bar .bar-fill {
    background: linear-gradient(135deg, #d4af37 0%, #f7e7ce 100%);
    transform: scaleX(1);
    transition-delay: 0.5s;
}

.chart-item.animate .ai-bar .bar-fill {
    background: linear-gradient(135deg, #4a90e2 0%, #a8d0f0 100%);
    transform: scaleX(var(--bar-width));
    transition-delay: 1s;
}

.bar-label {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: #2d3748;
    z-index: 2;
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.8);
}

.bar-value {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: #2d3748;
    z-index: 2;
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.8);
}

.improvement-badge {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    background: linear-gradient(135deg, #e8b4b8 0%, #f4c2c2 100%);
    color: #8b5a5c;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    box-shadow: 0 4px 15px rgba(232, 180, 184, 0.4);
    opacity: 0;
    transform: translateY(-50%) scale(0.8);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.chart-item.animate .improvement-badge {
    opacity: 1;
    transform: translateY(-50%) scale(1);
    transition-delay: 1.5s;
}

.improvement-badge i {
    font-size: 0.875rem;
    color: #ffffff;
}

/* Set bar widths based on data-value */
.bar[data-value="100"] { --bar-width: 1; }
.bar[data-value="40"] { --bar-width: 0.4; }
.bar[data-value="25"] { --bar-width: 0.25; }
.bar[data-value="2.5"] { --bar-width: 0.025; }
.bar[data-value="33"] { --bar-width: 0.33; }

/* Process Section */
.process {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    position: relative;
}

.process::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(37,99,235,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
    pointer-events: none;
}

.process-intro {
    margin-bottom: 4rem;
}

.intro-highlight {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.intro-highlight .highlight-item {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(37, 99, 235, 0.1);
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.intro-highlight .highlight-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    border-color: rgba(37, 99, 235, 0.2);
}

.intro-highlight .highlight-item i {
    font-size: 2rem;
    color: #2563eb;
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    padding: 1rem;
    border-radius: var(--radius-xl);
    min-width: 4rem;
    text-align: center;
}

.intro-highlight .highlight-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 0.5rem;
}

.intro-highlight .highlight-item p {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.5;
}

.timeline-container {
    max-width: 1200px;
    margin: 0 auto;
    overflow: hidden;
}

.timeline-header {
    text-align: center;
    margin-bottom: 3rem;
}

.timeline-header h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 0.5rem;
}

.timeline-header p {
    color: #666;
    font-size: 1rem;
}

.timeline {
    position: relative;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0.8rem;
    padding: 1.5rem 1rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    width: 100%;
}

.timeline-line {
    position: absolute;
    top: 2.75rem;
    left: 15%;
    right: 15%;
    height: 4px;
    background: linear-gradient(90deg, #10b981 0%, #10b981 60%, #f59e0b 60%, #f59e0b 80%, #8b5cf6 80%, #8b5cf6 100%);
    border-radius: 2px;
    z-index: 1;
}

.timeline-step {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 120px;
    max-width: 120px;
    flex-shrink: 0;
    scroll-snap-align: center;
    z-index: 2;
}

.timeline-marker {
    position: relative;
    margin-bottom: 1rem;
}

.step-number {
    background: white;
    border: 2px solid #2563eb;
    color: #2563eb;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
    box-shadow: 0 3px 12px rgba(37, 99, 235, 0.2);
}

.step-icon {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: #2563eb;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    margin: 0 auto;
}

.timeline-content {
    background: white;
    padding: 1.5rem 0.5rem 1rem;
    border-radius: var(--radius-xl);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #f1f5f9;
    height: 140px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    border-color: rgba(37, 99, 235, 0.1);
}

.timeline-content h4 {
    font-size: 0.8rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 0.4rem;
    line-height: 1.2;
    margin-top: 2rem;
}

.timeline-content p {
    color: #666;
    font-size: 0.75rem;
    line-height: 1.3;
    margin-bottom: 0.8rem;
}

.step-badge {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    padding: 0.3rem 0.6rem;
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.step-badge.free {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.step-badge.development {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
}

.step-badge.testing {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    color: white;
}

.step-badge.support {
    background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
    color: white;
}

.timeline-milestone {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 80px;
    max-width: 80px;
    flex-shrink: 0;
    z-index: 3;
}

.milestone-marker {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    width: 2.8rem;
    height: 2.8rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    box-shadow: 0 3px 15px rgba(245, 158, 11, 0.4);
    margin-bottom: 0.8rem;
    border: 2px solid white;
}

.timeline-milestone.contract .milestone-marker {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.timeline-milestone.payment .milestone-marker {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
}

.milestone-label {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: #92400e;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    border: 2px solid #f59e0b;
    white-space: nowrap;
}

.timeline-milestone.payment .milestone-label {
    background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
    color: #5b21b6;
    border-color: #8b5cf6;
}

.timeline-legend {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 3rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: #555;
}

.legend-color {
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
}

.legend-color.free {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.legend-color.paid {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.legend-color.milestone {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
}

/* Timeline Responsive */
@media (max-width: 768px) {
    .timeline {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }
    
    .timeline-line {
        display: none;
    }
    
    .timeline-step, .timeline-milestone {
        min-width: 300px;
        width: 100%;
    }
    
    .timeline-content {
        min-height: auto;
        padding: 1.5rem;
    }
    
    .timeline-content h4 {
        font-size: 1.1rem;
    }
    
    .timeline-content p {
        font-size: 0.9rem;
    }
    
    .timeline-legend {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .step-badge {
        position: static;
        margin-top: 0.5rem;
        align-self: center;
    }
}

.process-guarantee {
    margin-top: 4rem;
    text-align: center;
}

.guarantee-box {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border: 2px solid #f59e0b;
    border-radius: var(--radius-2xl);
    padding: 2.5rem;
    display: inline-flex;
    align-items: center;
    gap: 1.5rem;
    max-width: 600px;
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.2);
}

.guarantee-icon {
    font-size: 3rem;
    color: #d97706;
}

.guarantee-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #92400e;
    margin-bottom: 0.5rem;
}

.guarantee-content p {
    color: #a16207;
    line-height: 1.5;
}

/* About Section */
.about {
    padding: 80px 0;
    background: #f8f9fa;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text .section-title {
    text-align: left;
}

.about-text .section-title::after {
    left: 0;
    transform: none;
}

.about-description {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.highlight-item i {
    font-size: 1.5rem;
    width: 40px;
    text-align: center;
}

.highlight-item:nth-child(1) i {
    color: #3b82f6;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.highlight-item:nth-child(2) i {
    color: #10b981;
    background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.highlight-item:nth-child(3) i {
    color: #f59e0b;
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.highlight-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 0.2rem;
}

.highlight-item p {
    color: #666;
    font-size: 0.9rem;
}

.company-table {
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--spacing-xl);
}

.company-table h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    text-align: center;
}

.company-table table {
    width: 100%;
    border-collapse: collapse;
}

.company-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
}

.company-table td:first-child {
    font-weight: 600;
    color: var(--text-primary);
    width: 30%;
}

.company-table td:last-child {
    color: var(--text-secondary);
}

.company-table tr:last-child td {
    border-bottom: none;
}

.team-structure {
    position: relative;
    padding: 2rem;
}

.team-leader {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
}

.team-members {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.member-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.member-card:hover {
    transform: translateY(-4px);
}

.member-card i {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.team-leader .member-card i {
    color: #f59e0b;
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.team-members .member-card:nth-child(1) i {
    color: #3b82f6;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.team-members .member-card:nth-child(2) i {
    color: #10b981;
    background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.team-members .member-card:nth-child(3) i {
    color: #0891b2;
    background: linear-gradient(135deg, #0891b2 0%, #0e7490 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.member-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 0.5rem;
}

.member-card p {
    font-size: 0.9rem;
    color: #666;
}

/* Portfolio Section */
.portfolio {
    padding: 80px 0;
    background: white;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    background: white;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    transition: all 0.3s ease;
}

.portfolio-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
}

.portfolio-image {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
    padding: 1rem;
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.05);
}

.portfolio-image i {
    font-size: 4rem;
    color: white;
}

.portfolio-content {
    padding: 2rem;
}

.portfolio-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 1rem;
}

.portfolio-content p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.portfolio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    background: #e3f2fd;
    color: #1a73e8;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.tag i {
    font-size: 0.9rem;
}

/* Technology icon colors */
.tag .fa-react {
    color: #61DAFB;
}

.tag .fa-php {
    color: #777BB4;
}

.tag .fa-aws {
    color: #FF9900;
}

.tag .fa-mobile-alt {
    color: #02569B;
}

.tag .fa-python {
    color: #3776AB;
}

.tag .fa-apple {
    color: #000000;
}

.tag .fa-android {
    color: #3DDC84;
}

.tag .fa-plug {
    color: #FF6B35;
}

.tag .fa-cogs {
    color: #6C757D;
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background: #f8f9fa;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info .section-title {
    text-align: left;
}

.contact-info .section-title::after {
    left: 0;
    transform: none;
}

.contact-description {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.contact-method i {
    font-size: 1.5rem;
    color: #1a73e8;
    width: 40px;
    text-align: center;
}

.contact-method h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 0.2rem;
}

.contact-method p {
    color: #666;
    font-size: 0.9rem;
}

.contact-form {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #1a73e8;
}

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

/* Footer */
.footer {
    background: #1a1a1a;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand p {
    color: #ccc;
    margin-top: 1rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-section h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #1a73e8;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    background: #333;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: #1a73e8;
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #333;
    color: #999;
}

/* Animations */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .team-members {
        grid-template-columns: 1fr;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .floating-card {
        position: relative !important;
        top: auto !important;
        left: auto !important;
        right: auto !important;
        bottom: auto !important;
        margin: 1rem;
    }
    
    .floating-elements {
        display: flex;
        flex-direction: column;
        height: auto;
        gap: 1rem;
    }
    
    .comparison-container {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .vs-divider {
        order: 1;
        padding: 1rem 0;
    }
    
    .comparison-side.traditional {
        order: 0;
    }
    
    .comparison-side.modern {
        order: 2;
    }
    
    .roi-comparison {
        flex-direction: column;
        gap: 1rem;
    }
    
    .roi-arrow {
        transform: rotate(90deg);
    }
    
    .chart-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .performance-chart {
        margin-top: 2rem;
        padding: 2rem 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .service-card,
    .contact-form {
        padding: 1.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .chart-container {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .chart-item {
        padding: 1.5rem;
    }
    
    .intro-highlight {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .step-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 1rem;
    }
    
    .step-number {
        width: 3rem;
        height: 3rem;
        font-size: 1rem;
    }
    
    .step-content {
        padding: 1.5rem;
    }
    
    .step-connector {
        display: none;
    }
    
    .guarantee-box {
        flex-direction: column;
        text-align: center;
        padding: 2rem;
        margin: 0 1rem;
    }
}

/* Blog Features Section */
.blog-features {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
    position: relative;
}

.blog-features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="blogPattern" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="%23000" opacity="0.03"/></pattern></defs><rect width="100" height="100" fill="url(%23blogPattern)"/></svg>');
    pointer-events: none;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    position: relative;
    z-index: 1;
}

.blog-card {
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-light);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.blog-image {
    position: relative;
    height: 200px;
    overflow: hidden;
    cursor: pointer;
}

.blog-image a {
    display: block;
    width: 100%;
    height: 100%;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.blog-card:hover .blog-image img {
    transform: scale(1.1);
}

.blog-content {
    padding: var(--spacing-xl);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.blog-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

.blog-date {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.blog-date i {
    color: var(--primary-color);
}

.blog-category {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-weight: 500;
    font-size: var(--font-size-xs);
    transition: all 0.3s ease;
}

.blog-category:hover {
    background: rgba(37, 99, 235, 0.2);
}

.blog-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
    transition: color 0.3s ease;
    cursor: pointer;
}

.blog-title a {
    color: inherit;
    text-decoration: none;
}

.blog-title:hover {
    color: var(--primary-color);
}

.blog-excerpt {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    line-height: 1.6;
}

.blog-list-button {
    text-align: center;
    margin-top: var(--spacing-2xl);
}

.blog-list-button .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--primary-gradient);
    color: white;
    border-radius: var(--radius-xl);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

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

.blog-list-button .btn i {
    transition: transform 0.3s ease;
}

.blog-list-button .btn:hover i {
    transform: translateX(4px);
}

/* Featured Posts in Blog Page */
.featured-posts {
    margin-bottom: var(--spacing-3xl);
}

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

.featured-card {
    height: 100%;
}

.featured-image {
    height: 220px;
}

.featured-title {
    font-size: var(--font-size-lg);
}

@media (max-width: 1024px) {
    .featured-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .featured-grid {
        grid-template-columns: 1fr;
    }
}