/* ============================================================
   BCA Knowledge Base — Shared Stylesheet
   Aayush Acharya | MUJ Online BCA 2026-2029
   ============================================================ */

/* ── Variables ── */
:root {
  --bg:  #0a0a0a;
  --sf:  #111111;
  --sf2: #171717;
  --br:  #2a2a2a;
  --ac:  #00e5ff;
  --ac2: #7b61ff;
  --gr:  #22c55e;
  --am:  #f59e0b;
  --rd:  #ef4444;
  --tx:  #d4d4d4;
  --td:  #6b7280;
  --tb:  #f5f5f5;
  --cb:  #0d0d0d;
  --sw:  265px;
  --radius: 12px;
  --accent-glow: rgba(0, 229, 255, 0.08);
}

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

/* ── Base ── */
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--tx);
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--tx); text-decoration: none; transition: color .2s; }
a:hover { color: var(--ac); }

/* ── Root page body ── */
body.root-page {
  display: flex;
  justify-content: center;
  min-height: 100vh;
  padding: 40px 20px;
}

/* ── Subject page body ── */
body.subject-page {
  display: flex;
  min-height: 100vh;
}

/* ══════════════════════════════════════════════
   ROOT PAGE STYLES
   ══════════════════════════════════════════════ */

#root-main { max-width: 1100px; width: 100%; }

.dh {
  background: var(--sf);
  border: 1px solid var(--br);
  border-radius: var(--radius);
  padding: 40px;
  margin-bottom: 40px;
}
.dh h1 {
  font-family: 'Syne', sans-serif;
  font-size: 36px;
  font-weight: 800;
  color: var(--tb);
  margin-bottom: 10px;
}
.dh > p { font-size: 15px; color: var(--td); max-width: 600px; }

.sem-sec { margin-bottom: 50px; }
.sem-h {
  font-family: 'Syne', sans-serif;
  font-size: 22px;
  font-weight: 800;
  color: var(--ac);
  margin-bottom: 25px;
  display: flex;
  align-items: center;
  gap: 15px;
}
.sem-h::after { content: ''; flex: 1; height: 1px; background: var(--br); }

.ucg {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.ucc {
  background: var(--sf);
  border: 1px solid var(--br);
  border-radius: var(--radius);
  padding: 22px;
  text-decoration: none;
  transition: transform .2s, border-color .2s, background .2s;
  display: flex;
  flex-direction: column;
  min-height: 140px;
  cursor: pointer;
}
.ucc:hover { border-color: var(--td); transform: translateY(-4px); background: var(--sf2); }
.ucn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--td);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.ucc h3 {
  font-family: 'Syne', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--tb);
  margin-bottom: 10px;
}
.btn-launch {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  color: var(--ac2);
  text-transform: uppercase;
  margin-top: auto;
  letter-spacing: .5px;
}
.btn-launch.soon { color: var(--td); }

/* Modal */
#modal-ov {
  position: fixed; top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,.85);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(8px);
}
#modal {
  background: var(--sf);
  border: 1px solid var(--ac2);
  padding: 40px;
  border-radius: 16px;
  max-width: 450px;
  width: 90%;
  text-align: center;
}
#modal h2 { font-family: 'Syne', sans-serif; color: var(--ac); margin-bottom: 15px; }
.m-joke {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--td);
  background: var(--bg);
  padding: 15px;
  border-radius: 8px;
  margin-bottom: 20px;
  border-left: 3px solid var(--ac2);
}
.btn-close {
  background: var(--ac2);
  color: #fff;
  border: none;
  padding: 10px 25px;
  border-radius: 50px;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  cursor: pointer;
  font-size: 12px;
  transition: opacity .2s;
}
.btn-close:hover { opacity: .85; }

/* ══════════════════════════════════════════════
   SUBJECT PAGE STYLES
   ══════════════════════════════════════════════ */

/* Sidebar */
#sb {
  width: var(--sw);
  background: var(--sf);
  border-right: 1px solid var(--br);
  position: fixed; top: 0; left: 0; bottom: 0;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform .3s;
}
#sb::-webkit-scrollbar { width: 3px; }
#sb::-webkit-scrollbar-thumb { background: var(--br); }

.sbh {
  padding: 16px;
  border-bottom: 1px solid var(--br);
  position: sticky; top: 0;
  background: var(--sf);
  z-index: 2;
}
.sbl {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--ac);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 2px;
}
.sbt {
  font-family: 'Syne', sans-serif;
  font-size: 15px;
  font-weight: 800;
  color: var(--tb);
}

.pw { padding: 10px 16px; border-bottom: 1px solid var(--br); }
.pl { display: flex; justify-content: space-between; font-size: 10px; color: var(--td); margin-bottom: 4px; font-family: 'JetBrains Mono', monospace; }
.pb { height: 3px; background: var(--br); border-radius: 2px; overflow: hidden; }
.pf { height: 100%; background: linear-gradient(90deg, var(--ac2), var(--ac)); border-radius: 2px; transition: width .5s; width: 0%; }

.ul { list-style: none; padding: 4px 0; flex: 1; }
.ul li a { display: flex; align-items: center; gap: 7px; padding: 7px 14px; text-decoration: none; font-size: 11.5px; color: var(--td); transition: all .2s; border-left: 2px solid transparent; }
.ul li a:hover { color: var(--tx); background: var(--sf2); border-left-color: var(--ac2); }
.ul li a.on { color: var(--ac); background: rgba(0,229,255,.05); border-left-color: var(--ac); font-weight: 500; }
.ul li a.dn { color: var(--gr); }
.un { font-family: 'JetBrains Mono', monospace; font-size: 9px; font-weight: 700; background: var(--sf2); border: 1px solid var(--br); border-radius: 3px; padding: 1px 4px; min-width: 24px; text-align: center; flex-shrink: 0; }
.ul li a.on .un { border-color: var(--ac); color: var(--ac); }
.ul li a.dn .un { border-color: var(--gr); color: var(--gr); }

/* Top nav — sticky with blur like portfolio */
#main { margin-left: var(--sw); flex: 1; }
#tnav {
  background: rgba(10,10,10,.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--br);
  padding: 10px 32px;
  display: flex;
  align-items: center;
  gap: 10px;
  position: sticky;
  top: 0;
  z-index: 50;
}
.bc { font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--td); }
.bc span { color: var(--ac); }
.nbs { margin-left: auto; display: flex; gap: 8px; }

/* Buttons */
.btn {
  padding: 6px 16px;
  border-radius: 50px;
  border: 1px solid var(--br);
  background: transparent;
  color: var(--tx);
  font-size: 12px;
  cursor: pointer;
  transition: all .2s;
  font-family: 'Inter', sans-serif;
  text-decoration: none;
}
.btn:hover { border-color: var(--td); color: var(--tb); }
.btnp {
  background: var(--ac2);
  border-color: var(--ac2);
  color: #fff;
  font-weight: 600;
}
.btnp:hover { opacity: .85; color: #fff; border-color: var(--ac2); }
.btn-home {
  color: var(--ac2);
  border-color: rgba(123,97,255,.4);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  flex-shrink: 0;
}
.btn-home:hover { border-color: var(--ac2); color: var(--ac); }

/* Content area */
#ct { padding: 40px 48px; max-width: 960px; margin: 0 auto; }
.pn { display: none; }
.pn.on { display: block; animation: fi .3s; }
@keyframes fi { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* Fade in util */
.fade-in { animation: fi .8s ease forwards; opacity: 0; }

/* Unit header */
.utag { font-family: 'JetBrains Mono', monospace; font-size: 10px; font-weight: 700; color: var(--ac2); letter-spacing: 3px; text-transform: uppercase; margin-bottom: 7px; }
.utit { font-family: 'Syne', sans-serif; font-size: 30px; font-weight: 800; color: var(--tb); line-height: 1.2; margin-bottom: 16px; }
.uint { font-size: 14.5px; line-height: 1.9; margin-bottom: 26px; padding: 16px 20px; background: var(--sf); border-left: 3px solid var(--ac); border-radius: 0 8px 8px 0; max-width: 70ch; }
.obj { background: rgba(123,97,255,.06); border: 1px solid rgba(123,97,255,.15); border-radius: var(--radius); padding: 14px 18px; margin-bottom: 24px; }
.obj h4 { font-family: 'Syne', sans-serif; font-size: 10px; font-weight: 700; color: var(--ac2); text-transform: uppercase; letter-spacing: 2px; margin-bottom: 8px; }
.obj li { padding: 3px 0; font-size: 12.5px; display: flex; gap: 7px; list-style: none; }
.obj li::before { content: '▸'; color: var(--ac2); flex-shrink: 0; }

/* Tabs */
.tabs { display: flex; border-bottom: 1px solid var(--br); margin-bottom: 20px; }
.tb { padding: 8px 16px; background: transparent; border: none; border-bottom: 2px solid transparent; color: var(--td); font-size: 12.5px; cursor: pointer; transition: all .2s; margin-bottom: -1px; font-family: 'Inter', sans-serif; }
.tb:hover { color: var(--tx); }
.tb.on { color: var(--ac); border-bottom-color: var(--ac); }
.tc { display: none; }
.tc.on { display: block; animation: fi .2s; }

/* Content typography */
.sh { font-family: 'Syne', sans-serif; font-size: 18px; font-weight: 700; color: var(--tb); margin: 32px 0 12px; display: flex; align-items: center; gap: 10px; }
.sh::after { content: ''; flex: 1; height: 1px; background: var(--br); }
.ssh { font-family: 'Syne', sans-serif; font-size: 15px; font-weight: 700; color: var(--ac); margin: 18px 0 8px; }
.pn p { margin-bottom: 12px; color: var(--tx); font-size: 14.5px; line-height: 1.9; max-width: 70ch; }

/* Code blocks */
.cw { background: var(--cb); border: 1px solid var(--br); border-radius: var(--radius); margin: 12px 0; overflow: hidden; }
.ch { display: flex; align-items: center; padding: 7px 12px; background: rgba(255,255,255,.02); border-bottom: 1px solid var(--br); gap: 6px; }
.ds { display: flex; gap: 4px; }
.ds span { width: 8px; height: 8px; border-radius: 50%; display: block; }
.dr { background: #ff5f57; } .dy { background: #ffbd2e; } .dg { background: #28c840; }
.cl { font-family: 'JetBrains Mono', monospace; font-size: 9px; color: var(--td); margin-left: auto; }
pre { padding: 16px; overflow-x: auto; font-family: 'JetBrains Mono', monospace; font-size: 12px; line-height: 1.65; color: #abb2bf; }
pre::-webkit-scrollbar { height: 3px; }
pre::-webkit-scrollbar-thumb { background: var(--br); }
code { background: var(--cb); border: 1px solid var(--br); border-radius: 4px; padding: 1px 5px; font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--gr); }

/* Syntax highlighting */
.kw { color: #c678dd; } .fn { color: #61afef; } .str { color: #98c379; }
.num { color: #d19a66; } .cm { color: #5c6370; font-style: italic; }
.type { color: #e5c07b; } .pp { color: #c678dd; } .op { color: #56b6c2; }

/* Tables */
.t { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 12.5px; }
.t th { background: var(--sf2); color: var(--ac); padding: 8px 12px; text-align: left; font-family: 'JetBrains Mono', monospace; font-size: 9px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; border-bottom: 1px solid var(--br); }
.t td { padding: 8px 12px; border-bottom: 1px solid var(--br); }
.t tr:hover td { background: var(--sf2); }
.t code { background: var(--cb); border: 1px solid var(--br); border-radius: 3px; padding: 1px 4px; font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--gr); }

/* Info / warning boxes */
.ib { background: rgba(34,197,94,.04); border: 1px solid rgba(34,197,94,.15); border-radius: 8px; padding: 10px 14px; margin: 10px 0; }
.ib b, .ibl { font-family: 'JetBrains Mono', monospace; font-size: 9px; font-weight: 700; color: var(--gr); text-transform: uppercase; letter-spacing: 2px; display: block; margin-bottom: 5px; }
.wb { background: rgba(245,158,11,.04); border: 1px solid rgba(245,158,11,.15); border-radius: 8px; padding: 10px 14px; margin: 10px 0; }
.wb b, .wbl { font-family: 'JetBrains Mono', monospace; font-size: 9px; font-weight: 700; color: var(--am); text-transform: uppercase; letter-spacing: 2px; display: block; margin-bottom: 5px; }

/* Icon grid */
.igrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 8px; margin: 10px 0; }
.ic { background: var(--sf); border: 1px solid var(--br); border-radius: 8px; padding: 12px; transition: border-color .2s, transform .2s; }
.ic:hover { border-color: var(--td); transform: translateY(-2px); }
.ic h5 { font-family: 'Syne', sans-serif; font-size: 11.5px; font-weight: 700; color: var(--tb); margin-bottom: 3px; }
.ic p { font-size: 11px; color: var(--td); margin: 0; line-height: 1.4; }

/* Quiz */
.qq { background: var(--sf); border: 1px solid var(--br); border-radius: var(--radius); padding: 16px; margin-bottom: 12px; transition: border-color .3s; }
.qq.done { border-color: rgba(123,97,255,.3); }
.qt { font-size: 13px; font-weight: 500; color: var(--tb); margin-bottom: 10px; line-height: 1.6; display: flex; gap: 7px; }
.qn { font-family: 'JetBrains Mono', monospace; font-size: 9px; font-weight: 700; background: var(--sf2); border: 1px solid var(--br); border-radius: 3px; padding: 1px 5px; color: var(--ac2); flex-shrink: 0; margin-top: 2px; }
.opts { display: flex; flex-direction: column; gap: 5px; }
.ob { display: flex; align-items: center; gap: 9px; padding: 8px 12px; background: var(--sf2); border: 1px solid var(--br); border-radius: 6px; cursor: pointer; transition: all .2s; text-align: left; color: var(--tx); font-family: 'Inter', sans-serif; font-size: 12.5px; width: 100%; }
.ob:hover:not(:disabled) { border-color: var(--td); background: #202020; }
.ol { font-family: 'JetBrains Mono', monospace; font-size: 9px; font-weight: 700; width: 20px; height: 20px; border: 1px solid var(--br); border-radius: 4px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; color: var(--td); transition: all .2s; }
.ob:hover:not(:disabled) .ol { border-color: var(--td); color: var(--tx); }
.ob.ok { background: rgba(34,197,94,.06); border-color: var(--gr); color: var(--tb); }
.ob.ok .ol { border-color: var(--gr); color: var(--gr); }
.ob.ng { background: rgba(239,68,68,.06); border-color: var(--rd); color: var(--td); }
.ob.ng .ol { border-color: var(--rd); color: var(--rd); }
.ob:disabled { cursor: not-allowed; }
.exp { margin-top: 7px; padding: 8px 12px; background: rgba(0,229,255,.03); border-left: 2px solid var(--ac); border-radius: 0 5px 5px 0; font-size: 11.5px; display: none; }
.exp.on { display: block; animation: fi .2s; }

/* Theory questions */
.tqi { background: var(--sf); border: 1px solid var(--br); border-radius: var(--radius); padding: 14px; margin-bottom: 10px; }
.tqq { font-size: 12.5px; font-weight: 500; color: var(--tb); margin-bottom: 8px; }
.tqb { padding: 5px 14px; background: rgba(123,97,255,.08); border: 1px solid rgba(123,97,255,.2); border-radius: 50px; color: var(--ac2); font-size: 11px; cursor: pointer; transition: all .2s; font-family: 'Inter', sans-serif; }
.tqb:hover { background: rgba(123,97,255,.16); }
.tqa { display: none; margin-top: 8px; padding: 12px; background: var(--cb); border-radius: 6px; font-size: 11.5px; color: var(--tx); font-family: 'JetBrains Mono', monospace; white-space: pre-wrap; border: 1px solid var(--br); }
.tqa.on { display: block; animation: fi .2s; }

/* Quiz result */
.qr { display: none; margin-top: 18px; padding: 24px; border-radius: var(--radius); text-align: center; border: 1px solid var(--br); background: var(--sf); }
.qr.on { display: block; animation: fi .4s; }
.rs { font-family: 'Syne', sans-serif; font-size: 44px; font-weight: 800; background: linear-gradient(135deg, var(--ac2), var(--ac)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; line-height: 1; margin-bottom: 5px; }
.rm { font-size: 15px; color: var(--tb); margin-bottom: 3px; }
.rd2 { font-size: 11px; color: var(--td); }

/* Done banner */
.db { display: none; margin-top: 20px; padding: 14px 18px; background: rgba(34,197,94,.04); border: 1px solid rgba(34,197,94,.15); border-radius: var(--radius); align-items: center; gap: 12px; }
.db.on { display: flex; animation: fi .5s; }
.db h4 { font-family: 'Syne', sans-serif; font-size: 13px; font-weight: 700; color: var(--gr); margin-bottom: 1px; }
.db p { font-size: 11px; color: var(--td); margin: 0; }

/* Dashboard */
#dash { display: block; }
.dst { display: flex; gap: 24px; font-size: 12px; color: var(--td); }
.dst strong { display: block; font-family: 'Syne', sans-serif; font-size: 20px; font-weight: 800; color: var(--ac); margin-bottom: 1px; }
.uct { font-size: 11px; color: var(--td); line-height: 1.4; }
.ucd { display: none; position: absolute; top: 10px; right: 10px; font-size: 12px; }
.ucc.dn .ucd { display: block; }
.ucc.dn { border-color: rgba(34,197,94,.2); }

/* Exam section */
.es { background: rgba(245,158,11,.04); border: 1px solid rgba(245,158,11,.15); border-radius: var(--radius); padding: 18px; margin-bottom: 16px; }
.es h3 { font-family: 'Syne', sans-serif; font-size: 15px; font-weight: 700; color: var(--am); margin-bottom: 3px; }
.ess { font-size: 10px; color: var(--td); margin-bottom: 12px; }
.eq { padding: 8px 0; border-bottom: 1px solid var(--br); font-size: 12.5px; }
.eq:last-child { border-bottom: none; }
.eq strong { color: var(--tb); }
.eopt { color: var(--td); display: block; padding-left: 12px; font-size: 11.5px; margin-top: 2px; }

/* Mobile sidebar toggle */
#overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.6); z-index: 90; backdrop-filter: blur(4px); }
#mbt { display: none; position: fixed; top: 12px; left: 12px; z-index: 200; background: var(--sf); border: 1px solid var(--br); border-radius: 8px; padding: 7px 10px; cursor: pointer; color: var(--tx); font-size: 15px; }

/* ── Dark / Light Mode ── */
body.light-mode {
  --bg:  #fafafa;
  --sf:  #ffffff;
  --sf2: #f4f4f5;
  --br:  #e4e4e7;
  --ac:  #0077aa;
  --ac2: #5b3fd6;
  --gr:  #16a34a;
  --am:  #d97706;
  --rd:  #dc2626;
  --tx:  #18181b;
  --td:  #71717a;
  --tb:  #09090b;
  --cb:  #f1f5f9;
}

/* Theme toggle button */
.btn-theme {
  font-size: 15px;
  padding: 5px 10px;
  border-radius: 50px;
  border: 1px solid var(--br);
  background: transparent;
  cursor: pointer;
  color: var(--tx);
  transition: all .2s;
  flex-shrink: 0;
}
.btn-theme:hover { border-color: var(--td); }
body.light-mode .ucc { box-shadow: 0 1px 3px rgba(0,0,0,.06); }
body.light-mode pre { color: #374151; }

/* ══════════════════════════════════════════════
   HERO SECTION (Root page)
   ══════════════════════════════════════════════ */
.hero {
  background: var(--sf);
  border: 1px solid var(--br);
  border-radius: 16px;
  padding: 32px 36px 24px;
  margin-bottom: 44px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(123,97,255,.1), transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -40px; left: 40px;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(0,229,255,.06), transparent 70%);
  pointer-events: none;
}
.hero-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 28px; }
.hero-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; font-weight: 700;
  letter-spacing: 3px; text-transform: uppercase;
  color: var(--ac);
  background: rgba(0,229,255,.06);
  border: 1px solid rgba(0,229,255,.15);
  border-radius: 50px;
  padding: 5px 14px;
}
.hero-body { display: flex; gap: 40px; align-items: flex-start; margin-bottom: 28px; }
.hero-left { flex: 1; min-width: 0; }
.hero-right { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; flex-shrink: 0; }
.hero-title { font-family: 'Syne', sans-serif; font-size: 48px; font-weight: 800; color: var(--tb); line-height: 1.0; margin-bottom: 18px; letter-spacing: -1px; }
.hero-accent { background: linear-gradient(135deg, var(--ac), var(--ac2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-sub { font-size: 14px; line-height: 1.8; color: var(--tx); max-width: 480px; margin-bottom: 20px; }
.hero-sub strong { color: var(--tb); }
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; font-weight: 700;
  color: var(--td);
  background: var(--sf2);
  border: 1px solid var(--br);
  border-radius: 50px;
  padding: 4px 12px;
  letter-spacing: .5px;
  transition: all .2s;
}
.tag:hover { border-color: var(--td); color: var(--tx); }
.stat-card { background: var(--sf2); border: 1px solid var(--br); border-radius: var(--radius); padding: 16px 18px; text-align: center; transition: all .2s; min-width: 100px; }
.stat-card:hover { border-color: var(--td); transform: translateY(-2px); }
.stat-num { font-family: 'Syne', sans-serif; font-size: 30px; font-weight: 800; background: linear-gradient(135deg, var(--ac2), var(--ac)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; line-height: 1; margin-bottom: 6px; }
.stat-plus { font-size: 18px; -webkit-text-fill-color: var(--ac2); }
.stat-lbl { font-family: 'JetBrains Mono', monospace; font-size: 9px; font-weight: 700; color: var(--td); text-transform: uppercase; letter-spacing: 1px; line-height: 1.5; }
.stat-lbl span { color: var(--ac); }
.hero-footer { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--br); padding-top: 18px; }
.hero-status { display: flex; align-items: center; gap: 8px; font-family: 'JetBrains Mono', monospace; font-size: 10px; font-weight: 700; color: var(--gr); text-transform: uppercase; letter-spacing: 2px; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--gr); box-shadow: 0 0 6px var(--gr); animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .4; } }
.hero-link { font-family: 'JetBrains Mono', monospace; font-size: 10px; color: var(--td); letter-spacing: .5px; }

/* ── Footer ── */
.site-footer {
  padding: 24px 0 16px;
  border-top: 1px solid var(--br);
  text-align: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--td);
  letter-spacing: .5px;
  line-height: 1.9;
  margin-top: 60px;
}
.site-footer a { color: var(--ac2); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .dh { padding: 25px; }
  .dh h1 { font-size: 26px; }
  #sb { transform: translateX(-100%); }
  #sb.op { transform: translateX(0); }
  #overlay.op { display: block; }
  #mbt { display: flex; align-items: center; }
  #main { margin-left: 0; max-width: 100vw; }
  #ct { padding: 20px 16px; }
  .utit { font-size: 22px; }
  .hero-body { flex-direction: column; }
  .hero-title { font-size: 34px; }
  .hero-right { grid-template-columns: repeat(4,1fr); gap: 8px; }
  .stat-num { font-size: 22px; }
  .hero-link { display: none; }
}