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

:root {
    --bg-primary: #0a0a0b;
    --bg-secondary: #111113;
    --bg-tertiary: #18181b;
    --border: #27272a;
    --border-hover: #3f3f46;
    --text-primary: #fafafa;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --accent: #60a5fa;
    --accent-hover: #93c5fd;
    --accent-purple: #a78bfa;
    --accent-glow: rgba(96, 165, 250, 0.15);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

html { scroll-behavior: smooth; }

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

.cursor-glow {
    position: fixed;
    width: 600px; height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: 1;
    transition: opacity 0.3s;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
    width: 100%;
    position: relative;
    z-index: 2;
}

/* ============ MAIN LAYOUT ============ */
.main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 0 3rem;
    position: relative;
    z-index: 2;
}

/* ============ BRAND ============ */
.brand {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeIn 0.6s ease-out;
}

.brand-logo {
    font-family: var(--font-mono);
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 0.5rem;
}

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

.brand-tagline {
    font-family: var(--font-mono);
    color: var(--text-muted);
    font-size: 0.85rem;
    letter-spacing: 1px;
}

/* ============ INTRO ============ */
.intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3.5rem;
    animation: fadeInUp 0.8s ease-out 0.1s both;
}

.intro-title {
    font-size: clamp(1.75rem, 5vw, 2.75rem);
    font-weight: 700;
    letter-spacing: -1.5px;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.intro-name {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-purple) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.cursor-blink {
    color: var(--accent);
    animation: blink 1s infinite;
    font-weight: 400;
    -webkit-text-fill-color: var(--accent);
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.intro-text {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.7;
}

.accent {
    color: var(--accent);
    font-weight: 500;
}

/* ============ CARDS ============ */
.cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.card {
    position: relative;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    text-decoration: none;
    color: inherit;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    min-height: 280px;
}

.card:hover {
    transform: translateY(-6px);
    border-color: var(--accent);
    box-shadow: 0 20px 50px rgba(0,0,0,0.4), 0 0 30px var(--accent-glow);
}

.card-bg {
    position: absolute;
    top: 0; right: 0;
    width: 200px; height: 200px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none;
}

.card:hover .card-bg {
    opacity: 1;
}

.card-writeups:hover .card-bg {
    background: radial-gradient(circle, rgba(167, 139, 250, 0.15) 0%, transparent 70%);
}

.card-writeups:hover {
    border-color: var(--accent-purple);
    box-shadow: 0 20px 50px rgba(0,0,0,0.4), 0 0 30px rgba(167, 139, 250, 0.15);
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.card-label {
    font-family: var(--font-mono);
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
}

.card-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    background: var(--bg-tertiary);
    color: var(--accent);
    padding: 0.25rem 0.7rem;
    border-radius: 4px;
    border: 1px solid var(--border);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 500;
}

.card-writeups .card-tag {
    color: var(--accent-purple);
}

.card-icon {
    color: var(--accent);
    margin-bottom: 1.25rem;
    width: 48px; height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 10px;
    transition: all 0.3s;
}

.card-writeups .card-icon {
    color: var(--accent-purple);
}

.card:hover .card-icon {
    transform: scale(1.05) rotate(-3deg);
    border-color: currentColor;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.6rem;
    letter-spacing: -0.5px;
}

.card-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    flex: 1;
}

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

.card-url {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-muted);
    transition: color 0.3s;
}

.card:hover .card-url {
    color: var(--accent);
}

.card-writeups:hover .card-url {
    color: var(--accent-purple);
}

.card-arrow {
    font-size: 1.4rem;
    color: var(--text-muted);
    transition: all 0.3s;
}

.card:hover .card-arrow {
    transform: translateX(6px);
    color: var(--accent);
}

.card-writeups:hover .card-arrow {
    color: var(--accent-purple);
}

/* ============ INFO STRIP ============ */
.info-strip {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.25rem 0.5rem;
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

.info-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
    padding: 0 1.5rem;
    min-width: 110px;
}

.info-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.info-value {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.95rem;
}

.info-link {
    color: var(--accent);
    font-weight: 500;
    font-size: 0.95rem;
    text-decoration: none;
    transition: color 0.2s;
}

.info-link:hover {
    color: var(--accent-hover);
}

.info-divider {
    width: 1px;
    height: 28px;
    background: var(--border);
}

/* ============ FOOTER ============ */
.footer {
    border-top: 1px solid var(--border);
    padding: 1.5rem 0;
    position: relative;
    z-index: 2;
    background: var(--bg-secondary);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer-mono {
    font-family: var(--font-mono);
}

/* ============ ANIMATIONS ============ */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============ RESPONSIVE ============ */
@media (max-width: 720px) {
    .main { padding: 3rem 0 2rem; }
    .brand { margin-bottom: 2rem; }
    .intro { margin-bottom: 2.5rem; }
    .cards {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin-bottom: 2rem;
    }
    .card { min-height: auto; padding: 1.75rem; }
    .info-strip { padding: 1rem; }
    .info-item {
        padding: 0 1rem;
        min-width: 90px;
    }
    .info-divider:nth-of-type(2) { display: none; }
    .container { padding: 0 1.25rem; }
    .cursor-glow { display: none; }
}

@media (max-width: 480px) {
    .info-strip {
        flex-direction: column;
        gap: 1rem;
    }
    .info-divider { display: none; }
}