/* ===== RESET & BASE ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0a0a0f;
    --bg-card: #12121a;
    --bg-card-hover: #1a1a25;
    --text-primary: #e4e4ef;
    --text-secondary: #9494a8;
    --text-muted: #5e5e72;
    --accent: #7c5cff;
    --accent-secondary: #ff6b9d;
    --border: #2a2a3a;
    --border-light: #3a3a4a;
    --radius: 12px;
    --radius-sm: 8px;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--accent) var(--bg-primary);
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

/* ===== HEADER ===== */
.site-header {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent);
}

.logo-text {
    font-size: 1.1rem;
    font-weight: 700;
}

.main-nav {
    display: flex;
    gap: 0.5rem;
}

.nav-link {
    padding: 0.5rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 6px;
    transition: all 0.2s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: rgba(124, 92, 255, 0.15);
}

/* ===== BLOG HERO ===== */
.blog-hero {
    max-width: 1100px;
    margin: 0 auto;
    padding: 4rem 2rem 3rem;
    text-align: center;
}

.blog-hero h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 900;
    margin-bottom: 0.8rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.blog-sub {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto;
}

/* ===== BLOG CONTAINER ===== */
.blog-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1.5rem 4rem;
}

/* ===== ARTICLE CARDS ===== */
.article-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    margin-bottom: 1.5rem;
    transition: all 0.3s;
}

.article-card:hover {
    border-color: var(--border-light);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.article-card.article-placeholder {
    opacity: 0.5;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.article-date {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.tag {
    padding: 0.25rem 0.7rem;
    background: rgba(124, 92, 255, 0.12);
    border: 1px solid rgba(124, 92, 255, 0.25);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 0.3px;
}

.article-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    line-height: 1.3;
}

.article-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s;
}

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

.placeholder-text {
    color: var(--text-muted);
}

.article-excerpt {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.2rem;
    line-height: 1.6;
}

.read-more {
    display: inline-block;
    padding: 0.6rem 1.3rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    color: white;
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.read-more:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(124, 92, 255, 0.3);
}

/* ===== FOOTER ===== */
footer {
    border-top: 1px solid var(--border);
    padding: 2rem;
    text-align: center;
}

.footer-inner {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-credit {
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--accent);
    font-size: 0.95rem;
}

.footer-year {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .blog-hero {
        padding: 3rem 1.5rem 2rem;
    }

    .article-card {
        padding: 1.5rem;
    }

    .article-title {
        font-size: 1.2rem;
    }

    .footer-inner {
        flex-direction: column;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    .header-inner {
        padding: 0.8rem 1rem;
    }

    .blog-hero h1 {
        font-size: 2rem;
    }

    .blog-container {
        padding: 0 1rem 3rem;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.article-card {
    animation: fadeInUp 0.6s ease-out;
}

.article-card:nth-child(2) {
    animation-delay: 0.1s;
}

.article-card:nth-child(3) {
    animation-delay: 0.2s;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}