/* ============================================================
   somnath.spandavidya.in — portfolio
   Tokens lifted from the Spanda Vidya design system.
   Adds the responsive layer the design comps were missing.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
  --bg: #FFFFFF;
  --bg-subtle: #F1F5F9;
  --surface: #FFFFFF;
  --surface-2: #F8FAFC;

  --fg: #0F172A;
  --fg-muted: #64748B;
  --fg-subtle: #7C8AA0;          /* darkened from #94A3B8 for contrast */

  --border: #E2E8F0;
  --border-strong: #CBD5E1;
  --ring: #64748B;

  --primary: #0F172A;
  --primary-hover: #1E293B;
  --on-primary: #F8FAFC;
  --primary-tint: rgba(15, 23, 42, 0.06);
  --primary-soft: rgba(15, 23, 42, 0.10);

  --success: #047857;             /* darkened for contrast on light */
  --success-dot: #10B981;
  --danger: #EF4444;

  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px rgba(15,23,42,.08), 0 1px 2px rgba(15,23,42,.04);
  --shadow-md: 0 4px 6px -1px rgba(15,23,42,.08), 0 2px 4px -2px rgba(15,23,42,.05);
  --shadow-lg: 0 10px 15px -3px rgba(15,23,42,.08), 0 4px 6px -4px rgba(15,23,42,.04);

  --e: cubic-bezier(0.19, 1, 0.22, 1);
  --d-med: 400ms;

  --maxw: 1200px;
  --pad: 32px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #020617; --bg-subtle: #0F172A; --surface: #0F172A; --surface-2: #1E293B;
    --fg: #E2E8F0; --fg-muted: #94A3B8; --fg-subtle: #7F8EA3;
    --border: #1E293B; --border-strong: #334155; --ring: #64748B;
    --primary: #F8FAFC; --primary-hover: #E2E8F0; --on-primary: #0F172A;
    --primary-tint: rgba(248,250,252,.06); --primary-soft: rgba(248,250,252,.10);
    --success: #34D399;
  }
}
:root[data-theme="dark"] {
  --bg: #020617; --bg-subtle: #0F172A; --surface: #0F172A; --surface-2: #1E293B;
  --fg: #E2E8F0; --fg-muted: #94A3B8; --fg-subtle: #7F8EA3;
  --border: #1E293B; --border-strong: #334155; --ring: #64748B;
  --primary: #F8FAFC; --primary-hover: #E2E8F0; --on-primary: #0F172A;
  --primary-tint: rgba(248,250,252,.06); --primary-soft: rgba(248,250,252,.10);
  --success: #34D399;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--fg);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }
img { max-width: 100%; height: auto; }

/* Visible focus for keyboard users — absent from the comps */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}
.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--primary); color: var(--on-primary);
  padding: 10px 18px; border-radius: var(--radius-sm);
}
.skip:focus { left: 8px; top: 8px; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad); }
.mono { font-family: var(--font-mono); }
.eyebrow {
  font-size: 12px; font-weight: 600; letter-spacing: .05em;
  text-transform: uppercase; color: var(--fg-muted);
}

/* ---------- header ---------- */
.hdr {
  position: sticky; top: 0; z-index: 50;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.nav {
  max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad);
  height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--fg); font-weight: 700; font-size: 18px; letter-spacing: -.01em; }
.navlinks { display: flex; align-items: center; gap: 26px; }
.navlinks a { font-size: 14px; font-weight: 500; color: var(--fg-muted); }
.navlinks a:hover, .navlinks a[aria-current="page"] { color: var(--fg); }
.navsocial { display: flex; align-items: center; gap: 6px; }
.iconbtn {
  width: 36px; height: 36px; display: grid; place-items: center;
  border-radius: var(--radius-sm); color: var(--fg-muted);
}
.iconbtn:hover { color: var(--fg); background: var(--bg-subtle); }
.navtoggle {
  display: none; background: none; border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--fg); width: 40px; height: 40px;
  cursor: pointer; place-items: center;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 12px 24px; border-radius: var(--radius-sm);
  font-size: 15px; font-weight: 600; border: 1px solid transparent;
}
.btn-primary { background: var(--primary); color: var(--on-primary); }
.btn-primary:hover { background: var(--primary-hover); color: var(--on-primary); }
.btn-ghost { border-color: var(--border); color: var(--fg); background: transparent; }
.btn-ghost:hover { background: var(--bg-subtle); border-color: var(--border-strong); color: var(--fg); }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(135deg, var(--primary-tint) 0%, transparent 45%, var(--primary-tint) 100%);
}
.hero-grid {
  position: relative; max-width: var(--maxw); margin: 0 auto;
  padding: 80px var(--pad) 72px;
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center;
}
.hero h1 {
  margin: 22px 0 0; font-size: clamp(34px, 5vw, 62px);
  font-weight: 800; line-height: 1.04; letter-spacing: -.035em;
}
.hero-lead { margin: 22px 0 0; font-size: clamp(16px, 2.2vw, 20px); line-height: 1.6; color: var(--fg-muted); max-width: 560px; }
.hero-lead strong { color: var(--fg); font-weight: 600; }
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; padding: 6px 14px;
  border-radius: var(--radius-full); border: 1px solid var(--border);
  background: var(--surface); color: var(--fg-muted);
}
.tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.tag {
  padding: 5px 13px; border-radius: var(--radius-full);
  background: var(--bg-subtle); font-size: 13px; font-weight: 500; color: var(--fg-muted);
}
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

/* terminal card */
.term {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-md); overflow: hidden;
}
.term-bar {
  display: flex; align-items: center; gap: 8px; padding: 14px 18px;
  border-bottom: 1px solid var(--border); background: var(--surface-2);
}
.dot { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.term-title { margin-left: 8px; font-family: var(--font-mono); font-size: 12px; color: var(--fg-muted); }
.term-body { padding: 22px; font-family: var(--font-mono); font-size: 14px; line-height: 2; }
.term-row { display: flex; justify-content: space-between; gap: 16px; }
.term-row b { color: var(--primary); font-weight: 700; }
.term-row span { color: var(--fg-muted); text-align: right; }
.term-row.sep { border-top: 1px dashed var(--border); margin-top: 8px; padding-top: 8px; }
.term-row.sep b { color: var(--success); }

/* ---------- stat strip ---------- */
.stats { background: var(--bg-subtle); border-block: 1px solid var(--border); }
.stats-grid {
  max-width: var(--maxw); margin: 0 auto; padding: 40px var(--pad);
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px;
}
.stat b { display: block; font-size: clamp(24px, 3.4vw, 34px); font-weight: 800; letter-spacing: -.02em; color: var(--fg); }
.stat span { display: block; font-size: 13px; color: var(--fg-muted); margin-top: 4px; line-height: 1.4; }

/* ---------- sections ---------- */
.sec { max-width: var(--maxw); margin: 0 auto; padding: 72px var(--pad); }
.sec-alt { background: var(--bg-subtle); border-top: 1px solid var(--border); }
.sec h2 { margin: 12px 0 0; font-size: clamp(26px, 3.6vw, 36px); font-weight: 700; letter-spacing: -.02em; line-height: 1.14; }
.sec-lead { margin: 16px 0 0; font-size: clamp(15px, 2vw, 18px); line-height: 1.6; color: var(--fg-muted); max-width: 640px; }
.sechead { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; }

/* ---------- cards ---------- */
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 40px; }
.three { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-md); box-shadow: var(--shadow-sm); padding: 28px;
  transition: box-shadow var(--d-med) var(--e), border-color var(--d-med) var(--e), transform var(--d-med) var(--e);
}
a.card { display: flex; flex-direction: column; color: var(--fg); }
a.card:hover { box-shadow: var(--shadow-lg); border-color: var(--ring); transform: translateY(-3px); color: var(--fg); }
.card h3 { margin: 0; font-size: 21px; font-weight: 700; letter-spacing: -.01em; }
.card p { margin: 8px 0 0; font-size: 14.5px; line-height: 1.55; color: var(--fg-muted); }
.card-icon {
  width: 48px; height: 48px; border-radius: var(--radius-md);
  background: var(--primary-soft); color: var(--primary); display: grid; place-items: center;
}
.badges { display: flex; align-items: center; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.badge {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 11px;
  border-radius: var(--radius-full); font-size: 11.5px; font-weight: 600;
  background: var(--bg-subtle); color: var(--fg-muted);
}
.badge-flag { background: var(--primary-soft); color: var(--primary); font-weight: 700; }
.badge-live { background: rgba(16,185,129,.12); color: var(--success); }
.livedot { width: 6px; height: 6px; border-radius: 50%; background: var(--success-dot); animation: pulse 2s var(--e) infinite; }
@keyframes pulse { 0%,100%{opacity:.5} 50%{opacity:1} }
.kpis { display: flex; flex-wrap: wrap; gap: 16px; margin: 18px 0; }
.kpi b { display: block; font-size: 19px; font-weight: 800; color: var(--fg); }
.kpi span { display: block; font-size: 11px; color: var(--fg-muted); }
.stackline {
  font-family: var(--font-mono); font-size: 11.5px; color: var(--fg-subtle);
  border-top: 1px solid var(--border); padding-top: 14px;
}
.checks { list-style: none; margin: 20px 0 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.checks li { display: flex; gap: 11px; font-size: 15px; line-height: 1.5; }
.checks svg { flex-shrink: 0; margin-top: 2px; stroke: var(--success); }
.morelink { display: inline-flex; align-items: center; gap: 7px; margin-top: 20px; font-size: 14px; font-weight: 600; color: var(--primary); }

/* ---------- CTA + footer ---------- */
.cta { background: var(--primary); color: var(--on-primary); }
.cta .wrap { padding: 68px var(--pad); text-align: center; }
.cta h2 { margin: 0; font-size: clamp(26px, 4vw, 38px); font-weight: 800; letter-spacing: -.025em; }
.cta p { margin: 16px auto 0; font-size: clamp(15px, 2vw, 18px); line-height: 1.6; color: color-mix(in srgb, var(--on-primary) 82%, transparent); max-width: 560px; }
.cta .btn-primary { background: var(--on-primary); color: var(--primary); }
.cta .btn-ghost { border-color: color-mix(in srgb, var(--on-primary) 30%, transparent); color: var(--on-primary); }
.foot { border-top: 1px solid var(--border); background: var(--bg); }
.foot .wrap { padding: 36px var(--pad); display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.foot-mid { font-size: 13.5px; color: var(--fg-muted); }

/* ---------- timeline / prose (about, project pages) ---------- */
.tl { border-left: 2px solid var(--border); margin-left: 8px; padding-left: 28px; display: flex; flex-direction: column; gap: 40px; }
.tl-item { position: relative; }
.tl-item::before {
  content: ""; position: absolute; left: -36px; top: 6px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--surface); border: 2px solid var(--border-strong);
}
.tl-item.now::before { background: var(--success-dot); border-color: var(--success-dot); }
.tl-role { font-size: 20px; font-weight: 700; margin: 0; }
.tl-meta { font-size: 14px; color: var(--fg-muted); margin: 4px 0 0; }
.prose { max-width: 68ch; }
.prose h2 { margin: 40px 0 0; font-size: 26px; }
.prose h3 { margin: 28px 0 0; font-size: 19px; }
.prose p, .prose li { font-size: 16px; line-height: 1.7; color: var(--fg-muted); }
.prose strong { color: var(--fg); font-weight: 600; }
.prose table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14.5px; }
.prose th, .prose td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
.prose th { font-weight: 600; color: var(--fg); }
.prose td { color: var(--fg-muted); }
.tablewrap { overflow-x: auto; }

/* reveal */
[data-reveal] { opacity: 1; }
.js [data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity 700ms var(--e), transform 700ms var(--e); }
.js [data-reveal].in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js [data-reveal] { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .livedot { animation: none; }
}

/* ============================================================
   RESPONSIVE — the layer missing from the comps
   ============================================================ */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; padding-top: 56px; }
  .three { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(3, 1fr); gap: 24px; }
}
@media (max-width: 760px) {
  :root { --pad: 20px; }
  .navlinks {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--border);
    padding: 8px var(--pad) 16px;
  }
  .navlinks.open { display: flex; }
  .navlinks a { padding: 12px 0; border-bottom: 1px solid var(--border); font-size: 16px; }
  .navtoggle { display: grid; }
  .navsocial .iconbtn { display: none; }
  .navsocial .btn { padding: 9px 16px; font-size: 14px; }
  .two, .three { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); padding: 32px var(--pad); }
  .sec { padding: 56px var(--pad); }
  .foot .wrap { flex-direction: column; align-items: flex-start; gap: 14px; }
  .term-body { font-size: 13px; }
  .term-row span { font-size: 12px; }
}
@media (max-width: 420px) {
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 18px; }
  .cta-row .btn { width: 100%; justify-content: center; }
}

/* ---------- forms (access request) ---------- */
input, textarea {
  width: 100%; padding: 10px 12px; font: inherit; font-size: 15px;
  color: var(--fg); background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
}
input:focus-visible, textarea:focus-visible { outline: 2px solid var(--ring); outline-offset: 1px; border-color: var(--ring); }
textarea { resize: vertical; min-height: 84px; }
fieldset label { display: flex; align-items: flex-start; gap: 10px; font-size: 15px; cursor: pointer; }
fieldset input[type=checkbox] { width: auto; margin-top: 3px; flex-shrink: 0; }
.msg-ok { color: var(--success); font-weight: 600; }
.msg-err { color: var(--danger); font-weight: 600; }