:root {
    --primary: #1A1F3A;
    --primary-light: #2A3654;
    --accent: #E8AA42;
    --accent-dark: #D89A2F;
    --accent-light: #F4C470;
    --secondary: #2D5F6D;
    --text-dark: #1E293B;
    --text-body: #475569;
    --text-light: #64748B;
    --bg-light: #F8F9FA;
    --bg-white: #FFFFFF;
    --border: #E5E7EB;
    
    --font-display: 'Sora', sans-serif;
    --font-body: 'DM Sans', sans-serif;
}

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

body {
    font-family: var(--font-body);
    color: var(--text-body);
    line-height: 1.7;
    background: var(--bg-light);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 5vw, 2rem);
}

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem clamp(1.5rem, 5vw, 2rem);
    max-width: 1280px;
    margin: 0 auto;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
}

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

.nav-menu {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

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

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

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
}

.cta-button {
    padding: 0.875rem 2rem;
    background: var(--accent);
    color: var(--primary);
    font-weight: 700;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s;
}

.cta-button:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
}

/* Hero */
.hero-blog {
    margin-top: 80px;
    background: linear-gradient(135deg, var(--primary) 0%, #0F1729 100%);
    color: white;
    padding: 5rem 0 4rem;
    position: relative;
    overflow: hidden;
}

.hero-blog::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 60%;
    height: 100%;
    background: radial-gradient(circle at 80% 50%, rgba(232, 170, 66, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

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

.hero-content h1 {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-content h1 .highlight {
    color: var(--accent);
}

.hero-content .subtitle {
    font-size: 1.35rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    max-width: 720px;
}

/* Categories Filter */
.categories-filter {
    background: white;
    padding: 2rem 0;
    border-bottom: 1px solid var(--border);
}

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

.filter-btn {
    padding: 0.75rem 1.5rem;
    background: white;
    border: 2px solid var(--border);
    border-radius: 50px;
    color: var(--text-body);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

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

.filter-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* Blog Grid */
.blog-section {
    padding: 4rem 0;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.article-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    border: 2px solid var(--border);
    transition: all 0.3s;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--accent);
}

.article-image {
    width: 100%;
    min-height: 220px;
    background: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 2rem;
    position: relative;
}

.article-content {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.article-category {
    display: inline-block;
    padding: 0.35rem 0.875rem;
    background: rgba(232, 170, 66, 0.3);
    color: var(--accent-light);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 50px;
    margin-bottom: 1rem;
    width: fit-content;
}

.article-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: white;
    margin: 0;
    font-weight: 700;
    line-height: 1.3;
}

.article-summary {
    color: var(--text-body);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    flex: 1;
}

.article-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.article-date {
    font-size: 0.85rem;
    color: var(--text-light);
}

.article-link {
    color: var(--accent-dark);
    font-weight: 700;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: gap 0.3s;
    font-size: 0.9rem;
}

.article-card:hover .article-link {
    gap: 0.75rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background: white;
    border-radius: 12px;
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.empty-state h3 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

/* Admin Button */
.admin-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    background: var(--secondary);
    color: white;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    transition: all 0.3s;
    z-index: 100;
}

.admin-btn:hover {
    background: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
}

/* Footer */
footer {
    background: var(--primary);
    color: white;
    padding: 3rem 0 2rem;
    margin-top: 4rem;
}

.footer-content {
    text-align: center;
}

.footer-content p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s;
}

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

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .filter-buttons {
        justify-content: flex-start;
    }
}