/* ==========================================================================
   Ajinkya Argonda — personal site
   Dune-night: deep navy sky, drifting sand-dune horizon, spice-amber accent.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,400;12..96,500;12..96,600;12..96,700&family=Public+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

/* ---------- tokens (single committed dark theme — "dune night") ---------- */
:root {
  --bg: #0A1122;
  --surface: #101A30;
  --surface-2: #16223D;
  --line: rgba(230, 224, 205, 0.12);
  --ink: #F1ECDD;
  --ink-muted: #A9B4C9;
  --ink-faint: #71809C;
  --accent: #E3A83B;
  --accent-ink: #1B1508;
  --accent-cool: #C1662B;
  --shadow: 0 1px 2px rgba(0,0,0,0.35), 0 16px 40px -18px rgba(0,0,0,0.7);

  --font-display: 'Bricolage Grotesque', 'Segoe UI', system-ui, sans-serif;
  --font-body: 'Public Sans', 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;

  --measure: 62ch;
  --radius: 10px;
  --container: 1080px;
}

/* ---------- reset ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, h4 { font-family: var(--font-display); text-wrap: balance; margin: 0 0 0.4em; font-weight: 600; }
p { margin: 0 0 1em; max-width: var(--measure); }
.container { max-width: var(--container); margin: 0 auto; padding: 0 28px; }
::selection { background: var(--accent); color: var(--accent-ink); }
a:focus-visible, button:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------- header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(10, 17, 34, 0.78);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--ink);
}
.brand span { color: var(--accent); }
.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
}
.nav-links a {
  text-decoration: none;
  font-size: 0.86rem;
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--ink-muted);
  padding: 6px 2px;
  border-bottom: 1px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.nav-links a:hover, .nav-links a.is-active { color: var(--ink); border-color: var(--accent); }
.nav-links .btn { padding: 8px 14px; }

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 8px;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.nav-toggle svg { width: 18px; height: 18px; color: var(--ink); }

@media (max-width: 780px) {
  .nav-toggle { display: inline-flex; }
  .nav-links {
    position: fixed;
    inset: 64px 0 auto 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: #0C1428;
    border-bottom: 1px solid var(--line);
    padding: 8px 28px 20px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.18s ease, transform 0.18s ease;
  }
  .nav-links.is-open { opacity: 1; transform: translateY(0); pointer-events: auto; }
  .nav-links li { width: 100%; border-bottom: 1px solid var(--line); }
  .nav-links li:last-child { border-bottom: none; }
  .nav-links a { display: block; padding: 14px 0; }
}

/* ---------- buttons / chips ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 11px 18px;
  border-radius: 8px;
  border: 1px solid var(--line);
  color: var(--ink);
  background: var(--surface);
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.btn:hover { border-color: var(--accent); transform: translateY(-1px); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { filter: brightness(1.08); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; list-style: none; margin: 28px 0 0; padding: 0; }
.actions li { display: contents; }

.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 0; }
.chip {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.02em;
  color: var(--ink-muted);
  background: var(--surface-2);
  border: 1px solid var(--line);
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.chip.accent { color: #F0B96B; border-color: rgba(227,168,59,0.4); background: rgba(227,168,59,0.08); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 10px;
}
.date-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
  letter-spacing: 0.01em;
}

/* ---------- dune-night hero art ---------- */
.hero {
  position: relative;
  padding: 96px 0 72px;
  border-bottom: 1px solid var(--line);
  background: url("../img/dune-bg.svg") center bottom / cover no-repeat, var(--bg);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,17,34,0.35) 0%, rgba(10,17,34,0.55) 55%, rgba(10,17,34,0.92) 100%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero-grid { display: grid; grid-template-columns: 1.25fr 0.75fr; gap: 56px; align-items: center; }
.hero h1 { font-size: clamp(2.4rem, 5vw, 3.4rem); line-height: 1.04; letter-spacing: -0.01em; }
.hero .tagline { font-size: 1.1rem; color: var(--ink-muted); max-width: 46ch; margin-bottom: 18px; }
.hero .bio { color: var(--ink-muted); }
.hero-school { display: inline-flex; align-items: center; gap: 10px; margin-top: 6px; }
.hero-school img { width: 32px; height: 32px; object-fit: contain; }
.hero-school a { font-family: var(--font-mono); font-size: 0.85rem; text-decoration: none; color: var(--ink-muted); border-bottom: 1px dotted var(--ink-faint); }
.hero-photo {
  border: 1px solid rgba(227,168,59,0.35);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow);
  aspect-ratio: 4/5;
}
.hero-photo img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- page banner (inner pages) ---------- */
.page-banner {
  position: relative;
  padding: 64px 0 44px;
  border-bottom: 1px solid var(--line);
  background: url("../img/dune-bg.svg") center bottom / cover no-repeat, var(--bg);
  overflow: hidden;
}
.page-banner::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,17,34,0.55) 0%, rgba(10,17,34,0.8) 60%, rgba(10,17,34,0.96) 100%);
  pointer-events: none;
}
.page-banner .container { position: relative; z-index: 1; }
.page-banner h1 { font-size: clamp(2rem, 4vw, 2.6rem); }
.page-banner .lede { color: var(--ink-muted); font-size: 1.05rem; margin: 0; max-width: 56ch; }
.page-banner .hero-school { margin-top: 16px; }

/* ---------- tiles (home sections grid) ---------- */
.tiles-section { padding: 64px 0; }
.tiles-section h2 { font-size: 1.5rem; margin-bottom: 6px; }
.tiles-section .section-sub { color: var(--ink-muted); margin-bottom: 32px; }
.tiles-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.tile {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  color: var(--ink);
  aspect-ratio: 3/4;
  display: block;
  transition: transform 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease;
}
.tile img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.tile::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,17,34,0) 35%, rgba(10,17,34,0.92) 100%);
}
.tile:hover { transform: translateY(-3px); border-color: var(--accent); box-shadow: var(--shadow); }
.tile .tile-text { position: absolute; left: 18px; right: 18px; bottom: 16px; z-index: 1; }
.tile h3 { font-size: 1.05rem; margin-bottom: 4px; }
.tile p { font-size: 0.86rem; color: var(--ink-muted); margin: 0; }
@media (max-width: 900px) { .tiles-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .tiles-grid { grid-template-columns: 1fr; } .hero-grid { grid-template-columns: 1fr; } .hero-photo { max-width: 260px; } }

/* ---------- spotlights (about / experience) ---------- */
.spotlights { padding: 8px 0 72px; }
.spot {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 44px;
  align-items: center;
  padding: 48px 0;
  border-bottom: 1px solid var(--line);
}
.spot:last-child { border-bottom: none; }
.spot:nth-child(even) .spot-media { order: 2; }
.spot-media {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.spot-media img { width: 100%; height: 320px; object-fit: cover; }
.spot h3 { font-size: 1.4rem; margin-bottom: 12px; }
.spot .spot-link { display: inline-block; margin-top: 6px; font-family: var(--font-mono); font-size: 0.85rem; color: var(--accent); text-decoration: none; border-bottom: 1px solid rgba(227,168,59,0.4); }
@media (max-width: 780px) {
  .spot, .spot:nth-child(even) { grid-template-columns: 1fr; }
  .spot:nth-child(even) .spot-media { order: 0; }
  .spot-media img { height: 240px; }
}

/* ---------- project cards ---------- */
.projects-grid { padding-top: 8px; padding-bottom: 72px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.project-card {
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}
.project-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.card-photo { height: 170px; overflow: hidden; }
.card-photo img { width: 100%; height: 100%; object-fit: cover; }
.card-photo.placeholder {
  height: 170px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #16223D 0%, #0A1122 60%, #1B2947 100%);
  position: relative;
}
.card-photo.placeholder span {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 700;
  color: rgba(227,168,59,0.5);
  letter-spacing: -0.02em;
}
.project-card .card-body { padding: 22px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.project-card .card-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 8px; }
.project-card h3 { font-size: 1.15rem; margin: 0; }
.project-card p { font-size: 0.94rem; color: var(--ink-muted); margin-bottom: 0; }
.project-card .card-links { margin-top: 16px; display: flex; gap: 16px; }
.project-card .card-links a {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(227,168,59,0.4);
}
@media (max-width: 780px) { .projects-grid { grid-template-columns: 1fr; } }

/* ---------- skills page ---------- */
.skills-section { padding: 8px 0 72px; }
.skill-group { padding: 30px 0; border-bottom: 1px solid var(--line); }
.skill-group:last-child { border-bottom: none; }
.skill-group h2 { font-size: 1.1rem; margin-bottom: 4px; }
.skill-group .group-note { color: var(--ink-faint); font-size: 0.86rem; margin-bottom: 16px; }
.skill-chips { display: flex; flex-wrap: wrap; gap: 10px; }
.skill-chips .chip { font-size: 0.85rem; padding: 7px 14px; }

/* ---------- footer / contact ---------- */
.site-footer {
  position: relative;
  border-top: 1px solid var(--line);
  padding: 64px 0 40px;
  margin-top: 40px;
  background: url("../img/dune-bg.svg") center bottom / cover no-repeat, var(--bg);
}
.site-footer::before {
  content: "";
  position: absolute; inset: 0;
  background: rgba(10,17,34,0.88);
  pointer-events: none;
}
.site-footer .container { position: relative; z-index: 1; }
.contact-flex { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.contact-method h3 { font-family: var(--font-mono); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-faint); margin-bottom: 10px; }
.contact-method a.email-link { font-size: 1.2rem; text-decoration: none; color: var(--ink); border-bottom: 1px solid var(--accent); }
.social-icons { display: flex; gap: 12px; list-style: none; padding: 0; margin: 0; }
.social-icons a {
  width: 40px; height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-muted);
  text-decoration: none;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.social-icons a:hover { color: var(--accent); border-color: var(--accent); }
.social-icons svg { width: 18px; height: 18px; }
.footer-note { margin-top: 40px; font-family: var(--font-mono); font-size: 0.78rem; color: var(--ink-faint); }