/* Harithas Harikaran — portfolio. Hand-written CSS, no build step, no external requests. */

@font-face { font-family: "Inter"; font-style: normal; font-weight: 100 900; font-display: swap; src: url("../fonts/inter-latin-wght-normal.woff2") format("woff2"); }
@font-face { font-family: "Space Grotesk"; font-style: normal; font-weight: 300 700; font-display: swap; src: url("../fonts/space-grotesk-latin-wght-normal.woff2") format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-style: normal; font-weight: 100 800; font-display: swap; src: url("../fonts/jetbrains-mono-latin-wght-normal.woff2") format("woff2"); }

:root {
  --bg: #0B0F14;
  --surface: #121820;
  --surface-2: #182130;
  --border: #1F2A36;
  --text: #E6EDF3;
  --muted: #93A1B0;
  --accent: #F2A93B;
  --accent-fg: #1A1200;
  --ok: #3DDC97;
  --shadow: 0 1px 0 rgba(255, 255, 255, 0.03) inset, 0 12px 32px rgba(0, 0, 0, 0.35);
  --glow: radial-gradient(60% 50% at 70% 10%, rgba(242, 169, 59, 0.14), transparent 70%);
  --grid: rgba(255, 255, 255, 0.035);
  --font-text: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Cascadia Code", Consolas, "Liberation Mono", monospace;
  --radius: 14px;
  --radius-sm: 8px;
  --max: 1120px;
  --gutter: 16px;
  color-scheme: dark;
}

[data-theme="light"] {
  --bg: #F7F7F4;
  --surface: #FFFFFF;
  --surface-2: #F0EFEA;
  --border: #DDD9D0;
  --text: #14181D;
  --muted: #5B6472;
  --accent: #B45309;
  --accent-fg: #FFFFFF;
  --ok: #15803D;
  --shadow: 0 1px 2px rgba(20, 24, 29, 0.06), 0 10px 28px rgba(20, 24, 29, 0.08);
  --glow: radial-gradient(60% 50% at 70% 10%, rgba(180, 83, 9, 0.10), transparent 70%);
  --grid: rgba(20, 24, 29, 0.045);
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-text);
  font-size: 1rem;
  line-height: 1.6;
  overflow-x: hidden;
  background-image: var(--glow), linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 100% 100%, 48px 48px, 48px 48px;
  background-attachment: fixed;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; text-underline-offset: 0.2em; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.15; letter-spacing: -0.015em; margin: 0; }
h1 { font-size: clamp(2.4rem, 6vw, 4.2rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.2rem); font-weight: 600; }
h3 { font-size: 1.15rem; font-weight: 600; }
p { margin: 0; }
.mono { font-family: var(--font-mono); }
.muted { color: var(--muted); }
.wrap { max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--accent-fg); padding: 8px 12px; border-radius: var(--radius-sm); z-index: 100; }
.skip:focus { left: 12px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); background: color-mix(in srgb, var(--bg) 82%, transparent); border-bottom: 1px solid var(--border); }
.nav { display: flex; align-items: center; gap: 12px; min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font-family: var(--font-display); font-weight: 600; }
.brand:hover { text-decoration: none; }
.brand .mark { width: 34px; height: 34px; border-radius: 9px; background: var(--accent); color: var(--accent-fg); display: grid; place-items: center; font-family: var(--font-mono); font-weight: 700; font-size: 0.85rem; letter-spacing: -0.02em; }
.nav-links { display: flex; gap: 4px; list-style: none; margin: 0 0 0 auto; padding: 0; }
.nav-links a { color: var(--muted); padding: 8px 10px; border-radius: var(--radius-sm); font-size: 0.92rem; font-family: var(--font-mono); }
.nav-links a:hover { color: var(--text); background: var(--surface-2); text-decoration: none; }
.nav-actions { display: flex; align-items: center; gap: 6px; }
.icon-btn { display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--surface); color: var(--text); cursor: pointer; }
.icon-btn:hover { background: var(--surface-2); text-decoration: none; }
.icon-btn svg { width: 18px; height: 18px; }
#menu-toggle { display: none; }

/* Hero */
.hero { padding-block: clamp(56px, 9vw, 120px) clamp(40px, 6vw, 72px); display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 40px; align-items: center; }
.eyebrow { font-family: var(--font-mono); color: var(--accent); font-size: 0.85rem; letter-spacing: 0.02em; margin-bottom: 14px; }
.lead { font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: var(--muted); max-width: 56ch; margin-top: 18px; }
.lead strong { color: var(--text); font-weight: 600; }
.availability { display: inline-flex; align-items: center; gap: 10px; margin-top: 22px; padding: 8px 14px 8px 10px; border: 1px solid var(--border); border-radius: 999px; background: var(--surface); font-size: 0.92rem; }
.availability .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 4px color-mix(in srgb, var(--ok) 20%, transparent); }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 16px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--surface); color: var(--text); font-weight: 500; font-size: 0.95rem; cursor: pointer; }
.btn:hover { background: var(--surface-2); text-decoration: none; }
.btn.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
.btn.primary:hover { filter: brightness(1.06); }
.btn svg { width: 17px; height: 17px; }
.facts { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 28px; color: var(--muted); font-size: 0.9rem; font-family: var(--font-mono); }
.facts span::before { content: "·"; margin-right: 8px; color: var(--border); }
.facts span:first-child::before { content: none; }

.code-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.code-card .bar { display: flex; align-items: center; gap: 8px; padding: 10px 14px; border-bottom: 1px solid var(--border); font-family: var(--font-mono); font-size: 0.8rem; color: var(--muted); }
.code-card .bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--border); display: inline-block; }
.code-card .bar i:nth-child(1) { background: #ff5f57; } .code-card .bar i:nth-child(2) { background: #febc2e; } .code-card .bar i:nth-child(3) { background: #28c840; }
.code-card .bar span { margin-left: 6px; }
.code-card pre { margin: 0; padding: 16px 18px; font-family: var(--font-mono); font-size: 0.82rem; line-height: 1.65; color: var(--text); overflow-x: auto; }
.code-card .k { color: var(--accent); } .code-card .s { color: var(--ok); } .code-card .c { color: var(--muted); }

/* Sections */
.section { padding: clamp(40px, 6vw, 72px) 0; border-top: 1px solid var(--border); }
.section-head { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 10px 24px; margin-bottom: 28px; }
.section-head p { color: var(--muted); max-width: 62ch; }
.index { font-family: var(--font-mono); color: var(--accent); font-size: 0.8rem; display: block; margin-bottom: 8px; }

/* Cards */
.grid { display: grid; gap: 18px; grid-template-columns: repeat(12, minmax(0, 1fr)); }
.card { grid-column: span 6; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); display: flex; flex-direction: column; overflow: hidden; transition: transform 0.25s ease, border-color 0.25s ease; }
.card:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); }
.card.wide { grid-column: span 12; flex-direction: row; }
.card.wide .thumb { flex: 0 0 48%; }
.card .thumb { aspect-ratio: 16 / 10; background: #000; overflow: hidden; border-bottom: 1px solid var(--border); }
.card.wide .thumb { aspect-ratio: auto; border-bottom: 0; border-right: 1px solid var(--border); }
.card .thumb img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.card .body { padding: 20px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.card .meta { display: flex; justify-content: space-between; align-items: center; gap: 10px; font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted); }
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 3px 9px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface-2); color: var(--muted); font-family: var(--font-mono); font-size: 0.74rem; white-space: nowrap; }
.badge.live { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, var(--border)); }
.card p { color: var(--muted); font-size: 0.95rem; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 4px; }
.tags span { font-family: var(--font-mono); font-size: 0.74rem; color: var(--text); background: var(--surface-2); border: 1px solid var(--border); padding: 3px 8px; border-radius: 6px; }
.links { display: flex; flex-wrap: wrap; gap: 8px; }
.links a { display: inline-flex; align-items: center; gap: 6px; font-size: 0.9rem; font-weight: 500; padding: 7px 12px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--surface-2); color: var(--text); }
.links a:hover { border-color: var(--accent); text-decoration: none; }
.links a.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
.links svg { width: 15px; height: 15px; }

/* Timeline */
.timeline { display: grid; gap: 22px; }
.job { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 18px; padding: 22px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.job .when { font-family: var(--font-mono); color: var(--accent); font-size: 0.85rem; }
.job .where { color: var(--muted); font-size: 0.92rem; margin-top: 6px; }
.job ul { margin: 12px 0 0; padding-left: 18px; color: var(--muted); font-size: 0.95rem; display: grid; gap: 8px; }
.job li::marker { color: var(--accent); }

/* Skills */
.skills { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.skill { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.skill h3 { font-family: var(--font-mono); font-size: 0.85rem; color: var(--accent); font-weight: 600; margin-bottom: 12px; }
.skill ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.skill li { font-size: 0.86rem; background: var(--surface-2); border: 1px solid var(--border); padding: 4px 9px; border-radius: 6px; }

/* Education */
.edu { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.edu .job { grid-template-columns: 1fr; }
.certs { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 10px; }
.certs a { display: inline-flex; align-items: center; gap: 8px; padding: 9px 13px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text); font-size: 0.9rem; }
.certs a:hover { border-color: var(--accent); text-decoration: none; }

/* Contact */
.contact { text-align: center; padding: clamp(48px, 8vw, 96px) 0; }
.contact h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); }
.contact p { color: var(--muted); max-width: 52ch; margin: 14px auto 0; }
.contact .actions { justify-content: center; }
.email { font-family: var(--font-mono); font-size: clamp(1rem, 2.4vw, 1.35rem); display: inline-block; margin-top: 22px; }

.site-footer { border-top: 1px solid var(--border); padding: 26px 0 40px; color: var(--muted); font-size: 0.85rem; font-family: var(--font-mono); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; }

/* Reveal */
.js .reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.6s ease, transform 0.6s ease; }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .card { transition: none; }
}

/* Responsive */
@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; }
  .code-card { max-width: 560px; }
  .skills { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .card.wide { flex-direction: column; }
  .card.wide .thumb { aspect-ratio: 16 / 10; border-right: 0; border-bottom: 1px solid var(--border); }
}
@media (max-width: 900px) {
  .nav { flex-wrap: wrap; }
  #menu-toggle { display: inline-grid; margin-left: auto; }
  .nav-actions { order: 2; }
  .nav-links { display: none; order: 3; flex-basis: 100%; flex-direction: column; gap: 2px; padding: 6px 0 12px; margin: 0; }
  .nav-links.open { display: flex; }
}
@media (max-width: 720px) {
  .card { grid-column: span 12; }
  .job { grid-template-columns: 1fr; gap: 6px; }
  .skills, .edu { grid-template-columns: 1fr; }
  .code-card pre { font-size: 0.74rem; white-space: pre-wrap; word-break: break-word; }
}

/* Print */
@media print {
  :root { --bg: #fff; --surface: #fff; --surface-2: #f3f3f3; --border: #ccc; --text: #111; --muted: #444; --accent: #8a3f05; --accent-fg: #fff; }
  body { background: #fff; }
  .site-header, .skip, #menu-toggle, .code-card, .site-footer, .reveal { display: none !important; }
  .reveal { opacity: 1; transform: none; }
  .card, .job, .skill { box-shadow: none; break-inside: avoid; }
  a::after { content: " (" attr(href) ")"; font-size: 0.8em; color: #444; }
  .links a::after, .brand::after, .certs a::after { content: none; }
}