@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500&display=swap');

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

/* ── Tokens ─────────────────────────────────────────────── */
:root {
    --accent: #5982ff;
    --accent-dim: rgba(0, 42, 255, 0.08);
    --accent-border: rgba(43, 65, 230, 0.74);
    --accent-hover: rgba(49, 67, 234, 0.623);
    --bg: #1a1a1a;
    --surface: rgba(255, 255, 255, 0.04);
    --border: rgba(255, 255, 255, 0.08);
    --text: #f0f0f0;
    --text-muted: #888;
    --mono: "JetBrains Mono", "Fira Code", "Courier New", monospace;
}

/* ── Base ───────────────────────────────────────────────── */
html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.7;
    background-color: var(--bg);
    color: var(--text);
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* ── Layout ─────────────────────────────────────────────── */
.container {
    max-width: 900px;
    margin: auto;
    padding: 2rem;
}

/* ── Header ─────────────────────────────────────────────── */
header {
    border-bottom: 1px solid var(--border);
    padding: 2.5rem 0;
}

header h1 {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    color: var(--text);
}

.subtitle {
    font-family: var(--mono);
    font-size: 0.88rem;
    color: var(--accent);
    margin: 0.4rem 0 1.2rem;
    opacity: 0.85;
    letter-spacing: 0.04em;
}

nav a {
    margin-right: 1.5rem;
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: color 0.2s ease;
}

nav a:hover {
    color: var(--accent);
    text-decoration: none;
}

/* ── Sections ───────────────────────────────────────────── */
section {
    margin-top: 3.5rem;
}

h2 {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1.25rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

/* ── Skills ─────────────────────────────────────────────── */
.skill-group {
    margin-bottom: 0.9rem;
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 0.3rem;
}

.skill-label {
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-right: 0.5rem;
    flex-shrink: 0;
    min-width: 8rem;
}

.tag {
    font-family: var(--mono);
    font-size: 0.78rem;
    background: var(--accent-dim);
    border: 1px solid var(--accent-border);
    color: var(--accent);
    border-radius: 4px;
    padding: 0.18rem 0.6rem;
    display: inline-block;
    transition: background 0.2s ease, border-color 0.2s ease;
}

/* ── Subsection labels ──────────────────────────────────── */
.subsection-label {
    font-family: var(--mono);
    font-size: 0.68rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    opacity: 0.6;
    margin-top: 2.5rem;
    margin-bottom: 0.5rem;
    padding-left: 0.1rem;
}

/* ── Cards ──────────────────────────────────────────────── */
.card {
    margin-top: 0.9rem;
    padding: 1.6rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    /* scroll reveal base state */
    opacity: 0;
    transform: translateY(20px);
    transition: border-color 0.25s ease, transform 0.25s ease, opacity 0.5s ease;
}

.card.visible {
    opacity: 1;
    transform: translateY(0);
}

.card:hover {
    border-color: var(--accent-hover);
    transform: translateY(-2px);
}

/* prevent hover from fighting visible's transform on initial reveal */
.card.visible:hover {
    transform: translateY(-2px);
}

.card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text);
}

.card p {
    margin-top: 0.5rem;
    color: #c0c0c0;
    font-size: 0.94rem;
}

.meta {
    font-family: var(--mono);
    font-size: 0.76rem;
    color: var(--text-muted);
    display: block;
    margin-bottom: 0.6rem;
    letter-spacing: 0.04em;
}

ul {
    margin-left: 1.2rem;
    margin-top: 0.6rem;
    color: #c0c0c0;
    font-size: 0.93rem;
}

li {
    margin-bottom: 0.25rem;
}

/* ── Media ──────────────────────────────────────────────── */
.media {
    display: block;
    max-width: 100%;
    border-radius: 8px;
    margin-top: 1rem;
}

iframe {
    display: block;
    max-width: 100%;
    border-radius: 8px;
    margin-top: 1rem;
    border: none;
}

/* ── Footer ─────────────────────────────────────────────── */
footer {
    border-top: 1px solid var(--border);
    margin-top: 5rem;
    padding: 2rem 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.88rem;
}

footer p {
    margin-bottom: 0.4rem;
}

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

footer a:hover {
    text-decoration: underline;
}