/* Landing page styles - Home page */
:root {
    --primary-color: #667eea;
    --primary-dark: #5568d3;
    --bg-primary: #1a202c;
    --bg-secondary: #2d3748;
    --text-primary: #e2e8f0;
    --text-secondary: #cbd5e0;
    --border-color: #4a5568;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    color: var(--text-primary);
    min-height: 100vh;
}

/* Header */
header {
    background: rgba(45, 55, 72, 0.8);
    backdrop-filter: blur(10px);
    padding: 16px 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 20px;
    font-weight: 700;
}

.logo-image {
    width: 32px;
    height: 32px;
    display: block;
    flex-shrink: 0;
}

.logo i {
    color: var(--primary-color);
    font-size: 24px;
}

.header-nav {
    display: flex;
    gap: 16px;
    align-items: center;
}

.header-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
    font-weight: 500;
}

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

.btn-browse {
    padding: 8px 20px;
    background: var(--primary-color);
    color: white;
    border-radius: 6px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-browse:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-admin {
    padding: 8px 16px;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    text-decoration: none;
    font-size: 13px;
    transition: all 0.3s;
}

.btn-admin:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Main content */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 24px;
}

.hero {
    text-align: center;
    margin-bottom: 120px;
}

.hero-icon {
    font-size: 80px;
    color: var(--primary-color);
    margin-bottom: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100px;
}

.hero-logo {
    width: 100px;
    height: 100px;
    display: block;
    filter: drop-shadow(0 4px 12px rgba(102, 126, 234, 0.2));
}

.hero h1 {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.2;
}

.hero p {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.6;
}

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

.btn-primary, .btn-secondary {
    padding: 14px 36px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(102, 126, 234, 0.3);
}

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

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

/* Features section */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
    margin: 80px 0;
}

.feature {
    text-align: center;
    padding: 32px;
    background: rgba(45, 55, 72, 0.5);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.feature:hover {
    border-color: var(--primary-color);
    background: rgba(102, 126, 234, 0.1);
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.feature h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Footer */
footer {
    background: rgba(45, 55, 72, 0.5);
    border-top: 1px solid var(--border-color);
    padding: 40px 24px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 13px;
    margin-top: 80px;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 36px;
    }

    .hero p {
        font-size: 16px;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn-primary, .btn-secondary {
        width: 100%;
        justify-content: center;
    }

    main {
        padding: 40px 16px;
    }
}