/* ===== Variables ===== */
:root {
    --bg: #0a0a0b;
    --bg-subtle: #111113;
    --surface: #18181b;
    --border: #27272a;
    --text: #fafafa;
    --text-muted: #a1a1aa;
    --text-subtle: #71717a;
    --accent: #f97316;
    --accent-glow: rgba(249, 115, 22, 0.15);
    --font-sans: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Film grain overlay */
.grain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.03;
    z-index: 1000;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* ===== Typography ===== */
h1, h2, h3 {
    font-weight: 700;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-subtle);
    margin-bottom: 1rem;
}

p {
    color: var(--text-muted);
    max-width: 55ch;
}

p + p {
    margin-top: 1rem;
}

strong {
    color: var(--text);
    font-weight: 500;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: opacity 0.2s;
}

a:hover {
    opacity: 0.8;
}

/* ===== Layout ===== */
main {
    max-width: 720px;
    margin: 0 auto;
    padding: 4rem 1.5rem 6rem;
}

section {
    margin-top: 5rem;
}

/* ===== Hero ===== */
.hero {
    padding: 4rem 0 2rem;
    position: relative;
}

.punch-emoji {
    font-size: 5rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    transition: transform 0.1s ease-out;
    filter: drop-shadow(0 0 40px var(--accent-glow));
}

h1 {
    font-size: clamp(2.5rem, 8vw, 4rem);
    line-height: 1.1;
}

h1 .greeting {
    display: block;
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

h1 .name {
    background: linear-gradient(135deg, var(--text) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    font-size: 1.25rem;
    margin-top: 1rem;
    color: var(--text-muted);
}

/* ===== About ===== */
.about .subtle {
    font-style: italic;
    color: var(--text-subtle);
    margin-top: 1.5rem;
}

/* ===== Links ===== */
.link-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
}

.link-card {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1.5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text);
    transition: all 0.2s ease;
}

.link-card:hover {
    opacity: 1;
    border-color: var(--accent);
    background: var(--bg-subtle);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3), 0 0 0 1px var(--accent-glow);
}

.link-icon {
    width: 24px;
    height: 24px;
    color: var(--text-muted);
    transition: color 0.2s;
}

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

.link-label {
    font-weight: 500;
    font-size: 1.125rem;
}

.link-handle {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-subtle);
}

/* ===== Diary Section ===== */
.diary-section p {
    margin-bottom: 1rem;
}

.diary-latest {
    display: block;
    padding: 1.5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.2s ease;
}

.diary-latest:hover {
    opacity: 1;
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.latest-label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-subtle);
    margin-bottom: 0.5rem;
}

.latest-title {
    display: block;
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 0.25rem;
}

.latest-date {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--accent);
}

/* ===== Human Section ===== */
.human {
    padding: 2rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.human h2 {
    margin-bottom: 0.75rem;
}

/* ===== Footer ===== */
footer {
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--text-subtle);
    font-size: 0.875rem;
}

.separator {
    margin: 0 0.5rem;
    opacity: 0.5;
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero, section {
    animation: fadeIn 0.6s ease-out backwards;
}

.hero { animation-delay: 0.1s; }
section:nth-of-type(1) { animation-delay: 0.2s; }
section:nth-of-type(2) { animation-delay: 0.3s; }
section:nth-of-type(3) { animation-delay: 0.4s; }

/* ===== Mobile ===== */
@media (max-width: 480px) {
    main {
        padding: 2rem 1rem 4rem;
    }
    
    .punch-emoji {
        font-size: 4rem;
    }
    
    section {
        margin-top: 3rem;
    }
    
    .link-card {
        padding: 1.25rem;
    }
}