/* The Tech Cellar — Static Site Kit
   No external dependencies. Designed for fast loading & clean compliance.
*/

:root{
  --bg0: #070A12;
  --bg1: #0B1020;
  --card: rgba(255,255,255,.06);
  --card2: rgba(255,255,255,.09);
  --border: rgba(255,255,255,.12);
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.72);
  --muted2: rgba(255,255,255,.60);
  --shadow: 0 20px 60px rgba(0,0,0,.45);
  --shadow2: 0 10px 30px rgba(0,0,0,.35);
  --radius: 18px;
  --radius2: 14px;
  --max: 1140px;
  --gap: 22px;
  --gap2: 14px;
  --ring: 0 0 0 4px rgba(255,255,255,.08);
  --accent: 255,255,255; /* keep neutral: no forced brand colors */
}

@media (prefers-color-scheme: light){
  :root{
    --bg0: #F7F8FC;
    --bg1: #EEF1FF;
    --card: rgba(0,0,0,.04);
    --card2: rgba(0,0,0,.06);
    --border: rgba(0,0,0,.10);
    --text: rgba(0,0,0,.90);
    --muted: rgba(0,0,0,.70);
    --muted2: rgba(0,0,0,.58);
    --shadow: 0 20px 60px rgba(0,0,0,.10);
    --shadow2: 0 10px 30px rgba(0,0,0,.10);
    --ring: 0 0 0 4px rgba(0,0,0,.06);
  }
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  color: var(--text);
  background:
    radial-gradient(1200px 800px at 15% 12%, rgba(255,255,255,.10), transparent 60%),
    radial-gradient(900px 700px at 85% 18%, rgba(255,255,255,.08), transparent 55%),
    radial-gradient(900px 900px at 60% 88%, rgba(255,255,255,.06), transparent 60%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  min-height: 100vh;
  line-height: 1.55;
}

a{ color: inherit; text-decoration: none; }
a:hover{ text-decoration: underline; text-underline-offset: 3px; }

.container{
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.skip-link{
  position: absolute;
  left: -999px;
  top: 8px;
  padding: 10px 12px;
  background: rgba(0,0,0,.85);
  border-radius: 10px;
  z-index: 9999;
}
.skip-link:focus{ left: 10px; outline: none; box-shadow: var(--ring); }

header.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: linear-gradient(180deg, rgba(0,0,0,.38), rgba(0,0,0,.16));
  border-bottom: 1px solid var(--border);
}

@media (prefers-color-scheme: light){
  header.site-header{
    background: linear-gradient(180deg, rgba(255,255,255,.84), rgba(255,255,255,.60));
  }
}

.navbar{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 14px;
}

.brand{
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 750;
  letter-spacing: .2px;
}
.logo{
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background:
    radial-gradient(12px 12px at 30% 30%, rgba(255,255,255,.75), transparent 60%),
    radial-gradient(16px 16px at 70% 25%, rgba(255,255,255,.42), transparent 55%),
    linear-gradient(140deg, rgba(255,255,255,.18), rgba(255,255,255,.06));
  border: 1px solid var(--border);
  box-shadow: var(--shadow2);
}

.navlinks{
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}
.navlinks a{
  padding: 8px 10px;
  border-radius: 12px;
  color: var(--muted);
}
.navlinks a.active{
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  text-decoration: none;
}

.actions{
  display: flex;
  gap: 10px;
  align-items: center;
}

.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.06);
  color: var(--text);
  box-shadow: none;
  cursor: pointer;
  text-decoration: none;
  user-select: none;
}
.btn:hover{
  text-decoration: none;
  background: rgba(255,255,255,.10);
}
.btn:focus{
  outline: none;
  box-shadow: var(--ring);
}
.btn.primary{
  background: linear-gradient(140deg, rgba(255,255,255,.18), rgba(255,255,255,.08));
  border: 1px solid rgba(255,255,255,.18);
  box-shadow: var(--shadow2);
}

.hamburger{
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.06);
  cursor: pointer;
}
.hamburger:focus{ outline:none; box-shadow: var(--ring); }
.hamburger span{
  display: block;
  width: 18px;
  height: 2px;
  background: rgba(255,255,255,.80);
  margin: 4px auto;
  border-radius: 2px;
}
@media (prefers-color-scheme: light){
  .hamburger span{ background: rgba(0,0,0,.75); }
}

@media (max-width: 900px){
  .navlinks{ display: none; }
  .hamburger{ display: inline-block; }
  .actions .btn { display:none; }
  .actions .btn.primary { display:inline-flex; }
}

/* Mobile drawer */
.drawer{
  display: none;
  border-top: 1px solid var(--border);
}
.drawer.open{ display: block; }
.drawer .inner{
  padding: 14px 0 18px 0;
  display: grid;
  gap: 10px;
}
.drawer a{
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--card);
  text-decoration: none;
  color: var(--text);
}
.drawer a.muted{
  background: transparent;
  border: 1px dashed var(--border);
  color: var(--muted);
}

/* Hero */
.hero{
  padding: 54px 0 18px;
}
.hero-grid{
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: var(--gap);
  align-items: center;
}
@media (max-width: 900px){
  .hero-grid{ grid-template-columns: 1fr; }
  .hero{ padding-top: 42px; }
}

.kicker{
  display: inline-flex;
  gap: 8px;
  align-items: center;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,.06);
  color: var(--muted);
  width: fit-content;
}
.kicker strong{ color: var(--text); font-weight: 700; }

h1{
  font-size: clamp(34px, 4.4vw, 54px);
  line-height: 1.05;
  margin: 14px 0 12px;
  letter-spacing: -0.6px;
}
.lead{
  margin: 0;
  color: var(--muted);
  font-size: 1.06rem;
  max-width: 62ch;
}

.hero-actions{
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.panel{
  background: linear-gradient(160deg, rgba(255,255,255,.10), rgba(255,255,255,.04));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  position: relative;
  overflow: hidden;
}
.panel::before{
  content:"";
  position:absolute;
  inset: -60px -50px auto auto;
  width: 220px; height: 220px;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.20), transparent 60%);
  transform: rotate(12deg);
}
.panel .meta{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  color: var(--muted2);
  font-size: .95rem;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,.06);
}
.badge svg{ width: 16px; height: 16px; opacity: .92; }

.grid{
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gap2);
  margin: 26px 0 30px;
}
.card{
  grid-column: span 4;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  padding: 16px;
  box-shadow: none;
  transition: transform .18s ease, background .18s ease;
}
.card:hover{
  transform: translateY(-2px);
  background: var(--card2);
}
@media (max-width: 900px){
  .card{ grid-column: span 12; }
}
.card h3{
  margin: 8px 0 6px;
  font-size: 1.08rem;
  letter-spacing: -0.2px;
}
.card p{
  margin: 0;
  color: var(--muted);
}
.icon{
  width: 34px; height: 34px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius: 12px;
  background: rgba(255,255,255,.08);
  border: 1px solid var(--border);
}

.section{
  padding: 18px 0 24px;
}
.section h2{
  margin: 0 0 10px;
  font-size: 1.6rem;
  letter-spacing: -0.3px;
}
.section p{
  margin: 0;
  color: var(--muted);
  max-width: 75ch;
}

.split{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
  align-items: start;
  margin-top: 18px;
}
@media (max-width: 900px){
  .split{ grid-template-columns: 1fr; }
}

.list{
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.list li{
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--card);
}
.list li strong{ display:block; margin-bottom: 2px; }
.list li span{ color: var(--muted); }

.notice{
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px dashed var(--border);
  color: var(--muted);
  background: rgba(255,255,255,.04);
}

.content{
  padding: 34px 0 42px;
}
.prose{
  background: linear-gradient(160deg, rgba(255,255,255,.10), rgba(255,255,255,.04));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow2);
}
.prose h1{ font-size: clamp(28px, 3.6vw, 40px); margin-top: 0; }
.prose h2{ margin: 22px 0 10px; font-size: 1.3rem; }
.prose p, .prose li{ color: var(--muted); }
.prose ul{ padding-left: 22px; }
.prose a{ text-decoration: underline; text-underline-offset: 3px; }
hr.sep{
  border: none;
  border-top: 1px solid var(--border);
  margin: 18px 0;
}

.footer{
  border-top: 1px solid var(--border);
  padding: 22px 0;
  color: var(--muted);
}
.footer-grid{
  display: grid;
  grid-template-columns: 1.3fr .7fr;
  gap: 18px;
  align-items: start;
}
@media (max-width: 900px){
  .footer-grid{ grid-template-columns: 1fr; }
}
.footer a{ color: var(--muted); }
.footer a:hover{ color: var(--text); }

.small{
  font-size: .95rem;
  color: var(--muted2);
}

.inline-actions{
  display:flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.form{
  display:grid;
  gap: 10px;
  margin-top: 12px;
}
.field{
  display:grid;
  gap: 6px;
}
input, textarea{
  width: 100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.06);
  color: var(--text);
  font: inherit;
}
textarea{ min-height: 120px; resize: vertical; }
input:focus, textarea:focus{ outline: none; box-shadow: var(--ring); }
label{ color: var(--muted); font-size: .95rem; }
.helper{ color: var(--muted2); font-size: .95rem; }

.toast{
  position: fixed;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  padding: 10px 12px;
  background: rgba(0,0,0,.78);
  border: 1px solid rgba(255,255,255,.18);
  color: rgba(255,255,255,.92);
  border-radius: 14px;
  box-shadow: var(--shadow2);
  display: none;
  z-index: 999;
}
@media (prefers-color-scheme: light){
  .toast{
    background: rgba(255,255,255,.92);
    color: rgba(0,0,0,.85);
    border: 1px solid rgba(0,0,0,.12);
  }
}

.code-pill{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: .95rem;
  padding: 4px 8px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.06);
}