/* Zethora — single-page static site
   Monochrome, elegant, cheap-to-host. */

:root{
  --bg: #0b0b0b;
  --panel: rgba(255,255,255,.06);
  --panel2: rgba(255,255,255,.08);
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.62);
  --line: rgba(255,255,255,.12);
  --shadow: 0 20px 60px rgba(0,0,0,.55);
  --radius: 18px;
  --radius2: 24px;
  --max: 1100px;
}

:root[data-theme="light"]{
  --bg: #ffffff;
  --panel: rgba(0,0,0,.04);
  --panel2: rgba(0,0,0,.06);
  --text: rgba(0,0,0,.92);
  --muted: rgba(0,0,0,.62);
  --line: rgba(0,0,0,.12);
  --shadow: 0 18px 45px rgba(0,0,0,.10);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1200px 600px at 20% -10%, rgba(255,255,255,.10), transparent 60%),
              radial-gradient(900px 500px at 110% 20%, rgba(255,255,255,.06), transparent 55%),
              var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a{ color: inherit; text-decoration: none; }
a:hover{ opacity:.9; }
code{ font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; }

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

.skip-link{
  position:absolute;
  left:-9999px;
  top:-9999px;
}
.skip-link:focus{
  left: 16px;
  top: 16px;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--line);
  padding: 10px 12px;
  border-radius: 12px;
  z-index: 9999;
}

/* Header */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
}
.site-header.elevated{
  border-bottom: 1px solid var(--line);
  background: rgba(0,0,0,.35);
}
:root[data-theme="light"] .site-header.elevated{
  background: rgba(255,255,255,.75);
}

.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 14px 0;
  gap: 16px;
}

.brand{
  display:flex;
  align-items:center;
  gap: 10px;
  font-weight: 600;
  letter-spacing: .2px;
}
.brand.small{ font-weight: 600; }
.mark{
  width: 34px;
  height: 34px;
  display:grid;
  place-items:center;
  border-radius: 14px;
  background: var(--panel);
  border: 1px solid var(--line);
}
.brand-name{ font-size: 15px; }

.nav{
  display:flex;
  align-items:center;
  gap: 16px;
  font-size: 14px;
  color: var(--muted);
}
.nav a{ padding: 8px 10px; border-radius: 999px; }
.nav a:hover{ background: var(--panel); color: var(--text); }

.pill{
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--text) !important;
}

.icon-btn{
  width: 40px;
  height: 40px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  display:grid;
  place-items:center;
  cursor:pointer;
}
.icon-btn:hover{ background: var(--panel2); }

/* Hero */
.hero{
  padding: 64px 0 24px;
}
.hero-inner{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 26px;
  align-items: start;
}
@media (max-width: 900px){
  .hero-inner{ grid-template-columns: 1fr; }
}

.kicker{
  display:inline-flex;
  gap: 10px;
  align-items:center;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--muted);
  font-size: 13px;
}
.dot{
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--text);
  opacity: .75;
}

h1{
  margin: 14px 0 10px;
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1.05;
  letter-spacing: -0.03em;
}
.lead{
  margin: 0 0 18px;
  font-size: 16px;
  color: var(--muted);
  max-width: 54ch;
}

.cta-row{
  display:flex;
  gap: 12px;
  align-items:center;
  flex-wrap: wrap;
  margin: 18px 0 22px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 11px 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--text);
  color: var(--bg);
  font-weight: 600;
  font-size: 14px;
  cursor:pointer;
  transition: transform .08s ease, opacity .12s ease;
}
.btn:hover{ opacity:.92; transform: translateY(-1px); }
.btn:active{ transform: translateY(0); }
.btn-ghost{
  background: transparent;
  color: var(--text);
}
.btn.block{ width:100%; }

.meta-row{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
@media (max-width: 560px){
  .meta-row{ grid-template-columns: 1fr; }
}
.meta{
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: var(--radius);
  padding: 12px 12px;
}
.meta-top{ display:block; font-weight: 600; font-size: 14px; }
.meta-bottom{ display:block; color: var(--muted); font-size: 12.5px; margin-top: 2px; }

/* Hero Card */
.hero-card{
  position: relative;
  border-radius: var(--radius2);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel), transparent 70%);
  box-shadow: var(--shadow);
  overflow:hidden;
  min-height: 340px;
}
.hero-card-inner{ padding: 18px; position: relative; z-index: 1; }
.noise{
  position:absolute; inset:0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255,255,255,.10), transparent 45%),
    radial-gradient(circle at 90% 20%, rgba(255,255,255,.08), transparent 40%),
    radial-gradient(circle at 50% 90%, rgba(255,255,255,.06), transparent 55%);
  opacity: .9;
  pointer-events:none;
}

.chip{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  font-size: 12.5px;
  color: var(--text);
}
.chip-ghost{ background: transparent; color: var(--muted); }

.card-top{ display:flex; gap: 10px; align-items:center; }
.card-body{ margin-top: 16px; }
.card-title{ font-weight: 600; font-size: 14px; margin-bottom: 10px; color: var(--muted); }

.mini-list{
  list-style:none;
  margin: 0;
  padding: 0;
  display:flex;
  flex-direction: column;
  gap: 10px;
}
.mini-list li{
  display:flex;
  gap: 10px;
  align-items:center;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  color: var(--text);
  font-size: 13.5px;
}
:root[data-theme="light"] .mini-list li{ background: rgba(0,0,0,.03); }

.bullet{
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text);
  opacity: .55;
  flex: 0 0 auto;
}

.card-bottom{
  margin-top: 16px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap: 10px;
}
.tiny{ font-size: 12px; color: var(--muted); }
.link{ text-decoration: underline; text-underline-offset: 3px; }

/* Sections */
.section{
  padding: 54px 0;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap: 24px;
  margin-bottom: 18px;
}
.section-head h2{
  margin: 0;
  font-size: 24px;
  letter-spacing: -0.02em;
}
.section-head p{
  margin: 0;
  color: var(--muted);
  max-width: 64ch;
  font-size: 14.5px;
}

/* Product grid */
.grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 18px;
}
@media (max-width: 980px){
  .grid{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px){
  .grid{ grid-template-columns: 1fr; }
}

.card{
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: var(--radius2);
  padding: 16px;
  transition: transform .10s ease, background .12s ease;
}
.card:hover{ transform: translateY(-2px); background: var(--panel2); }

.card-icon{
  width: 40px;
  height: 40px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.05);
  display:grid;
  place-items:center;
  margin-bottom: 12px;
}
:root[data-theme="light"] .card-icon{ background: rgba(0,0,0,.04); }

.card h3{ margin: 0 0 8px; font-size: 16px; letter-spacing: -0.01em; }
.card p{ margin: 0; color: var(--muted); font-size: 13.5px; }

.card-actions{
  margin-top: 12px;
  display:flex;
  gap: 8px;
  flex-wrap: wrap;
}
.tag{
  font-size: 11px;
  padding: 5px 9px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  color: var(--muted);
}
:root[data-theme="light"] .tag{ background: rgba(0,0,0,.03); }

.callout{
  margin-top: 16px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel2), transparent 80%);
  border-radius: var(--radius2);
  padding: 16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
}
.callout h3{ margin: 0 0 4px; font-size: 16px; }
.callout p{ margin: 0; color: var(--muted); font-size: 13.5px; }

/* About split */
.split{
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 18px;
  align-items:start;
}
@media (max-width: 900px){
  .split{ grid-template-columns: 1fr; }
}
.split h2{ margin-top: 0; }

.feature-list{
  margin-top: 16px;
  display:grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
.feature{
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: var(--radius);
  padding: 12px;
}
.feature-title{ font-weight: 600; font-size: 13.5px; }
.feature-body{ color: var(--muted); font-size: 13px; margin-top: 2px; }

.panel{
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel), transparent 75%);
  border-radius: var(--radius2);
  overflow:hidden;
  box-shadow: var(--shadow);
}
.panel-inner{ padding: 16px; }
.panel-title{ font-weight: 600; margin-bottom: 10px; }
.panel-row{ display:flex; gap: 10px; padding: 10px 10px; border-radius: 14px; border: 1px solid var(--line); background: rgba(255,255,255,.03); margin-bottom: 10px; }
:root[data-theme="light"] .panel-row{ background: rgba(0,0,0,.03); }
.panel-sep{ border: none; height: 1px; background: var(--line); margin: 14px 0; }
.panel-foot{ display:flex; align-items:center; justify-content:space-between; gap: 10px; }

/* Contact */
.contact{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 14px;
  margin-top: 18px;
}
@media (max-width: 900px){
  .contact{ grid-template-columns: 1fr; }
}

.form{
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: var(--radius2);
  padding: 16px;
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
label{ display:flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }
label.full{ grid-column: 1 / -1; }

input, textarea{
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  color: var(--text);
  padding: 12px 12px;
  outline: none;
  font-size: 14px;
}
:root[data-theme="light"] input,
:root[data-theme="light"] textarea{ background: rgba(0,0,0,.03); }

input:focus, textarea:focus{
  border-color: rgba(255,255,255,.26);
}
:root[data-theme="light"] input:focus,
:root[data-theme="light"] textarea:focus{
  border-color: rgba(0,0,0,.26);
}

.form-actions{
  display:flex;
  align-items:center;
  gap: 10px;
  flex-wrap: wrap;
}
.form-hint{ color: var(--muted); font-size: 12.5px; }

.aside{
  display:flex;
  flex-direction: column;
  gap: 12px;
}
.aside-card{
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: var(--radius2);
  padding: 16px;
}
.aside-title{ font-weight: 600; margin-bottom: 8px; }
.aside-body{ color: var(--muted); font-size: 13.5px; display:flex; flex-direction: column; gap: 8px; }

.link-btn{
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  color: var(--text);
  border-radius: 14px;
  padding: 10px 12px;
  text-align:left;
  cursor:pointer;
}
:root[data-theme="light"] .link-btn{ background: rgba(0,0,0,.03); }

.muted{ color: var(--muted); }

/* Footer */
.footer{
  padding: 26px 0 36px;
  border-top: 1px solid var(--line);
  background: rgba(0,0,0,.12);
}
:root[data-theme="light"] .footer{ background: rgba(0,0,0,.02); }

.footer-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 14px;
  flex-wrap: wrap;
}
.footer-left{ display:flex; flex-direction: column; gap: 8px; }

/* Small helpers */
.link:hover{ opacity:.85; }