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

:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --accent: #f59e0b;
    --accent-dark: #d97706;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --text: #e2e8f0;
    --text-muted: #94a3b8;
    --bg: #0a0e27;
    --bg-card: #151b33;
    --border: #1e293b;
    --success: #10b981;
    --white: #ffffff;
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    font-weight: 400;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: all 0.3s;
}

.header.scrolled {
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
}

.logo {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--accent);
}

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

.nav a {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s;
    position: relative;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s;
}

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

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

.mobile-toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1.25rem;
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, var(--dark) 0%, var(--bg) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80') center/cover;
    opacity: 0.15;
    z-index: 0;
}

.hero > * {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 600px;
}

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    background: var(--accent);
    color: var(--white);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(245, 158, 11, 0.3);
}

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

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

/* Section */
.section {
    padding: 100px 0;
}

.section-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--white);
}

.section-subtitle {
    color: var(--accent);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 700px;
    margin-bottom: 3rem;
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
    border-color: var(--accent);
}

.card-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--white);
    margin-bottom: 1.5rem;
}

.card h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--white);
}

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

/* Grid */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Footer */
.footer {
    background: var(--dark);
    border-top: 1px solid var(--border);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.footer p,
.footer a {
    color: var(--text-muted);
    text-decoration: none;
    line-height: 1.8;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Page Content */
.page-hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, var(--dark) 0%, var(--bg) 100%);
    text-align: center;
    position: relative;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80') center/cover;
    opacity: 0.15;
}

.page-hero > * {
    position: relative;
    z-index: 1;
}

.page-content {
    padding: 80px 0;
}

.content-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 3rem;
    max-width: 900px;
    margin: 0 auto;
}

.content-card h1,
.content-card h2,
.content-card h3,
.content-card h4 {
    font-family: 'Space Grotesk', sans-serif;
    color: var(--white);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.content-card h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

.content-card h2 {
    font-size: 2rem;
    font-weight: 600;
}

.content-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

.content-card p {
    color: var(--text);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.content-card img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 2rem 0;
}

.content-card ul,
.content-card ol {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

.content-card li {
    color: var(--text);
    margin-bottom: 0.75rem;
}

.content-card a {
    color: var(--accent);
    text-decoration: none;
}

.content-card a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-card);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        border-bottom: 1px solid var(--border);
        display: none;
    }
    
    .nav.active {
        display: flex;
    }
    
    .mobile-toggle {
        display: block;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
}