:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-card: #ffffff;
    --border-color: #e2e8f0;
    --border-hover: #2563eb;
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --accent-primary: #2563eb;
    --accent-secondary: #3b82f6;
    --accent-light: #dbeafe;
    --accent-dark: #1d4ed8;
    --success: #10b981;
    --gradient-primary: linear-gradient(135deg, #2563eb, #3b82f6);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.1);
    --shadow-card: 0 4px 20px rgba(37, 99, 235, 0.08);
    --shadow-card-hover: 0 8px 30px rgba(37, 99, 235, 0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.navbar {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.nav-logo h1 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent-primary);
    letter-spacing: -0.02em;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    padding: 8px 0;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background: var(--accent-primary);
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.page-hero {
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
    padding: 140px 0 80px;
    text-align: center;
    position: relative;
}

.page-title {
    font-size: 2.75rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.page-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

section {
    padding: 80px 0;
}

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

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-light);
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--accent-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

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

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

.btn-white {
    background: #ffffff;
    color: var(--accent-primary);
    box-shadow: var(--shadow-md);
}

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

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-card);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--accent-light);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: var(--accent-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.card-icon i {
    font-size: 1.5rem;
    color: var(--accent-primary);
}

.card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.card p {
    color: var(--text-muted);
    line-height: 1.7;
}

.cta-section {
    background: var(--accent-primary);
    position: relative;
}

.cta-content {
    text-align: center;
    padding: 20px 0;
}

.cta-content h2 {
    font-size: 2rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.footer {
    background: #1e293b;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand h3 {
    font-size: 1.5rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: #94a3b8;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.footer-section h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 1.25rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.footer-section li {
    margin-bottom: 0.6rem;
}

.footer-section a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.95rem;
}

.footer-section a:hover {
    color: var(--accent-secondary);
}

.footer-contact p {
    color: #94a3b8;
    margin-bottom: 0.6rem;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
}

.footer-contact i {
    color: var(--accent-secondary);
    width: 18px;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    color: #64748b;
    font-size: 0.9rem;
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 1024px) {
    .page-title {
        font-size: 2.25rem;
    }
    
    .section-title {
        font-size: 1.875rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        flex-direction: column;
        padding: 1.5rem;
        gap: 1rem;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .page-hero {
        padding: 120px 0 60px;
    }

    .page-title {
        font-size: 1.875rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    section {
        padding: 60px 0;
    }

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