/* ============================================================
   Subash Gupta — Personal Site
   Design language: microfinance passbook / ledger
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Martel:wght@300;400;600;700;800&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  --navy:#0F1E3D;
  --navy-2:#16294f;
  --navy-3:#1e3563;
  --paper:#EFE6D4;
  --paper-2:#E6DAC1;
  --ink:#1B1B18;
  --ink-soft:#4a4636;
  --brass:#9C6F1F;
  --brass-light:#B8862F;
  --rule:#C9BFA6;
  --rule-dark:#3a4d78;
  --surface:var(--paper);
  --surface-2:var(--paper-2);
  --text:var(--ink);
  --text-soft:var(--ink-soft);
  --accent:var(--brass);
  --radius:2px;
  --max:1120px;
}

[data-theme="dark"]{
  --surface:#10182b;
  --surface-2:#151f38;
  --text:#EFE6D4;
  --text-soft:#b7ae97;
  --accent:#D4A94F;
  --rule:#2a3557;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--surface);
  color:var(--text);
  font-family:'Inter', sans-serif;
  line-height:1.6;
  transition:background 0.3s ease, color 0.3s ease;
}
::selection{ background:var(--accent); color:var(--surface); }
a{ color:inherit; }
img{ max-width:100%; display:block; }
.mono{ font-family:'JetBrains Mono', monospace; }
h1,h2,h3,.display{ font-family:'Martel', serif; }

/* paper texture, subtle */
body::before{
  content:"";
  position:fixed; inset:0; z-index:0; pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 27px, rgba(60,45,20,0.03) 28px),
    radial-gradient(ellipse at top left, rgba(184,134,47,0.05), transparent 60%);
}
[data-theme="dark"] body::before{
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 27px, rgba(212,169,79,0.02) 28px),
    radial-gradient(ellipse at top left, rgba(212,169,79,0.05), transparent 60%);
}

.wrap{ max-width:var(--max); margin:0 auto; padding:0 28px; position:relative; z-index:1; }
section{ position:relative; z-index:1; }
.rule-full{ border-top:1px solid var(--rule); }

/* ---------- skip link ---------- */
.skip-link{
  position:absolute; left:-9999px; top:0; z-index:100;
  background:var(--navy); color:var(--paper); padding:12px 18px;
  font-family:'JetBrains Mono',monospace; font-size:0.85rem;
}
.skip-link:focus{ left:16px; top:16px; }

/* ---------- header ---------- */
header{
  position:sticky; top:0; z-index:50;
  background:color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--rule);
}
nav{
  max-width:var(--max); margin:0 auto;
  display:flex; align-items:center; justify-content:space-between;
  padding:18px 28px;
}
.brand{
  font-family:'Martel', serif; font-weight:800; font-size:1.1rem;
  letter-spacing:0.02em; display:flex; align-items:center; gap:10px;
  text-decoration:none; color:var(--navy);
}
[data-theme="dark"] .brand{ color:var(--paper); }
.brand .dot{
  width:9px; height:9px; border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}
.nav-right{ display:flex; align-items:center; gap:28px; }
.navlinks{ display:none; gap:28px; font-size:0.8rem; letter-spacing:0.06em; text-transform:uppercase; }
.navlinks a{
  text-decoration:none; opacity:0.75; transition:opacity 0.2s, border-color 0.2s;
  border-bottom:1px solid transparent; padding-bottom:2px;
}
.navlinks a:hover, .navlinks a:focus-visible{ opacity:1; border-color:var(--accent); }
@media(min-width:760px){ .navlinks{ display:flex; } }

.theme-toggle{
  background:none; border:1px solid var(--rule); color:var(--text);
  width:34px; height:34px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  cursor:pointer; transition:border-color 0.2s, transform 0.2s;
}
.theme-toggle:hover{ border-color:var(--accent); transform:rotate(15deg); }
.theme-toggle svg{ width:16px; height:16px; }

/* ---------- hero ---------- */
.hero{ padding:clamp(64px,10vw,104px) 0 76px; }
.eyebrow{
  font-family:'JetBrains Mono', monospace; font-size:0.78rem;
  color:var(--accent); letter-spacing:0.12em; text-transform:uppercase;
  display:flex; align-items:center; gap:10px; margin-bottom:26px;
}
.eyebrow::before{ content:""; width:26px; height:1px; background:var(--accent); }

.hero h1{
  font-size:clamp(2.4rem, 6.4vw, 4.8rem);
  font-weight:800; color:var(--navy); line-height:1.03; letter-spacing:-0.01em;
  max-width:14ch;
}
[data-theme="dark"] .hero h1{ color:var(--paper); }
.hero h1 em{ font-style:normal; color:var(--accent); }

.hero .role{ margin-top:22px; max-width:60ch; font-size:1.06rem; color:var(--text-soft); }
.hero .role b{ color:var(--navy); font-weight:600; }
[data-theme="dark"] .hero .role b{ color:var(--paper); }

.hero-actions{ display:flex; flex-wrap:wrap; gap:14px; margin-top:32px; }
.btn{
  font-family:'JetBrains Mono',monospace; font-size:0.82rem; letter-spacing:0.03em;
  padding:12px 20px; border:1px solid var(--navy); text-decoration:none;
  display:inline-flex; align-items:center; gap:8px; transition:all 0.2s ease;
}
[data-theme="dark"] .btn{ border-color:var(--paper); }
.btn.primary{ background:var(--navy); color:var(--paper); }
[data-theme="dark"] .btn.primary{ background:var(--paper); color:var(--navy); }
.btn.primary:hover{ background:var(--accent); border-color:var(--accent); color:var(--surface); }
.btn.ghost:hover{ border-color:var(--accent); color:var(--accent); }

.stat-row{
  margin-top:56px; display:grid; grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  border-top:1px solid var(--rule);
}
.stat{ padding:20px 20px 0 0; border-right:1px solid var(--rule); }
.stat:last-child{ border-right:none; }
.stat .n{ font-family:'JetBrains Mono',monospace; font-size:1.6rem; color:var(--navy); font-weight:500; }
[data-theme="dark"] .stat .n{ color:var(--paper); }
.stat .l{ font-size:0.72rem; text-transform:uppercase; letter-spacing:0.08em; color:var(--text-soft); margin-top:4px; }

/* ---------- stamp seal ---------- */
.stamp{ position:absolute; width:120px; height:120px; right:6px; top:56px; display:none; }
@media(min-width:960px){ .stamp{ display:block; } }
.stamp svg{ width:100%; height:100%; animation:spin 44s linear infinite; }
@keyframes spin{ to{ transform:rotate(360deg); } }

/* ---------- section heads ---------- */
.sec-head{
  display:flex; align-items:baseline; justify-content:space-between;
  gap:20px; margin-bottom:44px; flex-wrap:wrap;
}
.sec-head h2{ font-size:clamp(1.6rem,3.2vw,2.3rem); color:var(--navy); font-weight:700; }
[data-theme="dark"] .sec-head h2{ color:var(--paper); }
.sec-head .tag{
  font-family:'JetBrains Mono',monospace; font-size:0.74rem;
  color:var(--accent); text-transform:uppercase; letter-spacing:0.1em;
}

.band-navy{ background:var(--navy); color:var(--paper); }
[data-theme="dark"] .band-navy{ background:var(--surface-2); }
.band-navy .sec-head h2{ color:var(--paper); }

/* ---------- about ---------- */
.about{ padding:70px 0; }
.about-grid{ display:grid; grid-template-columns:1fr; gap:40px; }
@media(min-width:820px){ .about-grid{ grid-template-columns:1.2fr 0.8fr; } }
.about p{ font-size:1rem; color:var(--text-soft); margin-bottom:16px; max-width:60ch; }
.about p b{ color:var(--navy); }
[data-theme="dark"] .about p b{ color:var(--paper); }

.focus-card{ border:1px solid var(--rule); background:var(--surface-2); padding:26px 24px; }
.focus-card h3{
  font-size:0.76rem; text-transform:uppercase; letter-spacing:0.1em;
  color:var(--accent); margin-bottom:16px; font-family:'JetBrains Mono',monospace;
}
.focus-card ul{ list-style:none; margin:0; padding:0; }
.focus-card li{
  padding:9px 0; border-top:1px dashed var(--rule);
  font-size:0.9rem; display:flex; justify-content:space-between; gap:10px;
}
.focus-card li:first-child{ border-top:none; }

/* ---------- ledger / work ---------- */
.ledger{ padding:80px 0 90px; }
.ledger-table{ border-top:1px solid var(--rule-dark); }
.entry{
  display:grid; grid-template-columns:52px 1fr; gap:18px 24px; padding:26px 0;
  border-bottom:1px solid rgba(239,230,212,0.14);
  opacity:0; transform:translateY(14px);
  transition:opacity 0.5s ease, transform 0.5s ease;
}
[data-theme="dark"] .entry{ border-bottom-color:rgba(239,230,212,0.08); }
.entry.in{ opacity:1; transform:translateY(0); }
.entry .no{ font-family:'JetBrains Mono',monospace; color:var(--accent); font-size:0.9rem; padding-top:4px; }
.entry-body{ display:grid; grid-template-columns:1fr; gap:6px; }
@media(min-width:760px){ .entry-body{ grid-template-columns:1.5fr 2fr 0.9fr; gap:24px; align-items:start; } }
.entry h3{ font-size:1.14rem; font-weight:700; color:var(--paper); }
.entry .desc{ font-size:0.9rem; color:#c9d0e0; }
.entry .meta{
  font-family:'JetBrains Mono',monospace; font-size:0.72rem; color:var(--accent);
  text-transform:uppercase; letter-spacing:0.06em; text-align:left;
}
@media(min-width:760px){ .entry .meta{ text-align:right; } }
.entry a.link{
  color:#c9d0e0; text-decoration:none; border-bottom:1px solid rgba(201,208,224,0.4);
}
.entry a.link:hover{ color:var(--accent); border-color:var(--accent); }

/* ---------- projects / screenshots ---------- */
.projects{ padding:80px 0; }
.proj-grid{
  display:grid; grid-template-columns:1fr; gap:32px;
}
@media(min-width:720px){ .proj-grid{ grid-template-columns:1fr 1fr; } }
.proj-card{
  border:1px solid var(--rule); background:var(--surface-2);
  overflow:hidden; display:flex; flex-direction:column;
}
.proj-frame{
  aspect-ratio:16/10; background:var(--navy); position:relative; overflow:hidden;
}
.proj-frame .chrome{
  height:26px; background:rgba(239,230,212,0.06);
  display:flex; align-items:center; gap:6px; padding:0 10px;
  border-bottom:1px solid rgba(239,230,212,0.08);
}
.proj-frame .chrome span{
  width:7px; height:7px; border-radius:50%; background:rgba(239,230,212,0.25);
}
.proj-frame .placeholder-img{
  width:100%; height:100%; object-fit:cover; display:block;
}
.proj-frame .fallback{
  position:absolute; inset:26px 0 0 0;
  display:flex; align-items:center; justify-content:center;
  flex-direction:column; gap:10px; color:var(--accent);
  font-family:'JetBrains Mono',monospace; font-size:0.72rem; letter-spacing:0.08em; text-transform:uppercase;
  text-align:center; padding:0 20px;
}
.proj-frame .fallback svg{ width:34px; height:34px; opacity:0.6; }
.proj-body{ padding:20px 22px 24px; }
.proj-body .k{ font-family:'JetBrains Mono',monospace; font-size:0.68rem; color:var(--accent); text-transform:uppercase; letter-spacing:0.08em; }
.proj-body h4{ font-size:1.06rem; margin:8px 0; color:var(--navy); }
[data-theme="dark"] .proj-body h4{ color:var(--paper); }
.proj-body p{ font-size:0.88rem; color:var(--text-soft); margin:0; }

/* ---------- channels ---------- */
.channels{ padding:80px 0; }
.chan-grid{ display:grid; grid-template-columns:1fr; gap:1px; background:var(--rule-dark); border:1px solid var(--rule-dark); }
@media(min-width:640px){ .chan-grid{ grid-template-columns:1fr 1fr; } }
@media(min-width:960px){ .chan-grid{ grid-template-columns:repeat(4,1fr); } }
.chan{ background:var(--surface); padding:26px 22px; transition:background 0.25s ease; }
.chan:hover{ background:var(--surface-2); }
.chan .k{ font-family:'JetBrains Mono',monospace; font-size:0.68rem; color:var(--accent); text-transform:uppercase; letter-spacing:0.08em; }
.chan h4{ font-size:1rem; margin:10px 0 8px; color:var(--navy); }
[data-theme="dark"] .chan h4{ color:var(--paper); }
.chan p{ font-size:0.85rem; color:var(--text-soft); margin:0; }

/* ---------- footer ---------- */
footer{ padding:90px 0 50px; text-align:center; }
footer .seal{ width:92px; height:92px; margin:0 auto 26px; }
footer h2{ font-size:clamp(1.7rem,3.8vw,2.4rem); color:var(--navy); margin-bottom:14px; }
[data-theme="dark"] footer h2{ color:var(--paper); }
footer p{ color:var(--text-soft); max-width:44ch; margin:0 auto 28px; }
.contact-line{
  display:inline-flex; align-items:center; gap:10px;
  font-family:'JetBrains Mono',monospace; font-size:0.92rem;
  border-bottom:1px solid var(--accent); padding-bottom:4px; text-decoration:none; color:var(--navy);
}
[data-theme="dark"] .contact-line{ color:var(--paper); }
.foot-links{ margin-top:22px; display:flex; justify-content:center; gap:20px; font-size:0.8rem; }
.foot-links a{ text-decoration:none; opacity:0.7; }
.foot-links a:hover{ opacity:1; color:var(--accent); }
.foot-fine{ margin-top:56px; font-size:0.72rem; color:var(--text-soft); font-family:'JetBrains Mono',monospace; letter-spacing:0.04em; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; scroll-behavior:auto !important; }
}
a:focus-visible, button:focus-visible{ outline:2px solid var(--accent); outline-offset:3px; }