:root{
  /* Fresh, minimal theme */
  --bg: #ffffff;
  --bg2:#ffffff;
  --card: #ffffff;
  --card2: #ffffff;
  --text: #0f172a;
  --muted: rgba(15, 23, 42, .72);
  --muted2: rgba(15, 23, 42, .56);
  --border: rgba(15, 23, 42, .10);
  --accent: #1fb8ae;   /* from logo background */
  --accent2:#0f8f87;
  --shadow: 0 14px 40px rgba(2, 8, 23, .08);
  --shadow2: 0 8px 22px rgba(2, 8, 23, .06);
  --radius: 18px;
  --radius2: 14px;
  --max: 1120px;
}

*{ box-sizing: border-box; }
html, body { height: 100%; }
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: #ffffff;
  line-height: 1.55;
}

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

.container{ max-width: var(--max); margin: 0 auto; padding: 22px 18px; }

.nav{
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(255,255,255,.90);
  border-bottom: 1px solid var(--border);
}
.nav-inner{ display:flex; align-items:center; justify-content: space-between; gap: 12px; }
.brand{ display:flex; align-items:center; gap: 10px; font-weight: 900; letter-spacing:.2px; }
.brand-logo{
  width: 28px;
  height: 28px;
  border-radius: 8px;
  box-shadow: var(--shadow2);
}
.nav-links{ display:flex; gap: 14px; flex-wrap: wrap; align-items:center; }
.chip{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.65);
  border-radius: 999px;
  color: var(--muted);
  font-weight: 700;
  font-size: 13px;
}
.chip:hover{ background: rgba(255,255,255,.92); text-decoration: none; }

.lang{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.65);
  border-radius: 999px;
  color: var(--muted);
  font-weight: 800;
  font-size: 13px;
}
.lang select{
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--text);
  font-weight: 800;
  font-size: 13px;
  padding: 2px 18px 2px 4px;
  cursor: pointer;
}
.lang{
  position: relative;
}
.lang:after{
  content: "▾";
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: rgba(15, 23, 42, .55);
  font-size: 12px;
  pointer-events: none;
}

.hero{ padding: 46px 0 18px; }
.hero-grid{ display:grid; grid-template-columns: 1fr; gap: 18px; align-items: start; }
.hero-main{
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
}
.kicker{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid rgba(31,184,174,.22);
  background: rgba(31,184,174,.08);
  color: var(--accent2);
  font-size: 13px;
  font-weight: 900;
  margin-bottom: 14px;
}
.kicker:before{
  content: "✦";
  font-size: 12px;
  opacity: 0.85;
}
.headline{ font-size: 64px; line-height: 1.02; margin: 0 0 14px; letter-spacing: -1.0px; }
.headline-line{ display:block; }
.headline-accent{ color: var(--accent); }
.subhead{ margin: 0 auto 18px; color: var(--muted); font-size: 16px; max-width: 68ch;}
.cta{ display:flex; gap: 10px; flex-wrap: wrap; align-items:center; justify-content: center; margin-top: 8px; }
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.75);
  color: var(--text);
  font-weight: 800;
}
.btn.primary{
  background: linear-gradient(135deg, rgba(31,184,174,.18), rgba(31,184,174,.10));
  border-color: rgba(31,184,174,.35);
}
.btn:hover{ text-decoration:none; transform: translateY(-1px); transition: transform .12s ease; }
.btn small{ font-weight: 700; color: var(--muted); }

.hero-card{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255,255,255,.72);
  box-shadow: var(--shadow);
  padding: 16px;
  overflow: hidden;
  position: relative;
}
.hero-card:before{
  display: none;
}
.mock{
  position: relative;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.78);
  padding: 14px;
}
.mock-top{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
}
.mock-body{
  padding-top: 12px;
  display:grid;
  gap: 10px;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  font-weight: 800;
  padding: 8px 10px;
  border: 1px solid rgba(31,184,174,.34);
  background: rgba(31,184,174,.10);
  border-radius: 999px;
  color: var(--text);
  width: fit-content;
}
.row{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
}
.tag{
  font-size: 12px;
  font-weight: 800;
  color: rgba(15, 23, 42, .80);
  border: 1px solid var(--border);
  background: rgba(255,255,255,.65);
  padding: 6px 10px;
  border-radius: 999px;
}
.quote{
  border: 1px dashed rgba(15, 23, 42, .18);
  border-radius: 14px;
  padding: 12px 12px;
  color: rgba(15, 23, 42, .86);
  background: rgba(255,255,255,.72);
}
.quote strong{ color: var(--accent2); }

.section{ padding: 18px 0 8px; }
.section h2{
  margin: 8px 0 8px;
  font-size: 20px;
  letter-spacing: -0.2px;
}
.grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.card{
  border: 1px solid var(--border);
  background: rgba(255,255,255,.80);
  border-radius: var(--radius2);
  padding: 14px;
  box-shadow: var(--shadow2);
}
.card h3{ margin:0 0 6px; font-size: 14px; letter-spacing: .2px;}
.card p{ margin:0; color: var(--muted); font-size: 13px;}

.card-icon{
  width: 34px;
  height: 34px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: var(--accent2);
  background: rgba(15,23,42,.04);
  border: 1px solid rgba(15,23,42,.08);
  margin-bottom: 10px;
}
.card-icon svg{ width: 20px; height: 20px; }

/* Colored feature icons (per-card) */
.feature-card.f1 .card-icon{ color:#0f8f87; background: rgba(31,184,174,.16); border-color: rgba(31,184,174,.22); }
.feature-card.f2 .card-icon{ color:#2563eb; background: rgba(37,99,235,.12); border-color: rgba(37,99,235,.18); }
.feature-card.f3 .card-icon{ color:#7c3aed; background: rgba(124,58,237,.12); border-color: rgba(124,58,237,.18); }
.feature-card.f4 .card-icon{ color:#ea580c; background: rgba(234,88,12,.12); border-color: rgba(234,88,12,.18); }
.feature-card.f5 .card-icon{ color:#db2777; background: rgba(219,39,119,.12); border-color: rgba(219,39,119,.18); }
.feature-card.f6 .card-icon{ color:#16a34a; background: rgba(22,163,74,.12); border-color: rgba(22,163,74,.18); }

.two-col{
  display:grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 12px;
}
.list{
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}
.list li{ margin: 6px 0; }

.footer{
  padding: 26px 0 36px;
  border-top: 1px solid var(--border);
  margin-top: 14px;
  color: var(--muted2);
  font-size: 13px;
}
.foot-links{ display:flex; gap: 14px; flex-wrap: wrap; margin-top: 8px; }
.fine{ color: rgba(255,255,255,.55); font-size: 12px; margin-top: 10px; }
.fine{ color: var(--muted2); font-size: 12px; margin-top: 10px; }

.page{
  padding: 24px 0 10px;
}
.prose{
  border: 1px solid var(--border);
  background: rgba(255,255,255,.82);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.prose h1{ margin: 0 0 10px; font-size: 24px; }
.prose h2{ margin: 18px 0 8px; font-size: 16px; }
.prose p, .prose li{ color: var(--muted); font-size: 13px; }
.prose code{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12px;
  background: rgba(15, 23, 42, .04);
  border: 1px solid rgba(15, 23, 42, .10);
  border-radius: 8px;
  padding: 1px 6px;
}
.prose a{ color: var(--accent2); }

/* Demo */
.demo{
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 12px;
  align-items: start;
}
.demo-controls h3{ margin-bottom: 10px; }
.form-row{
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 10px;
  align-items: center;
  margin: 10px 0;
}
.label{
  font-size: 13px;
  color: var(--muted);
  font-weight: 800;
}
.demo select{
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255,255,255,.92);
  color: var(--text);
  font-weight: 800;
}
.demo select:disabled{
  opacity: 0.6;
  cursor: not-allowed;
  background: rgba(15, 23, 42, .03);
}
.demo-preview{
  display: grid;
  gap: 12px;
}
.demo-page{
  padding: 14px;
}

/* Demo hover tooltip (lookup) */
#demo-tooltip{
  position: absolute;
  max-width: 320px;
  background: rgba(17,17,17,.96);
  color: #fff;
  padding: 8px 10px;
  border-radius: 10px;
  font-size: 12px;
  line-height: 1.35;
  z-index: 999999;
  box-shadow: 0 10px 30px rgba(0,0,0,.18);
  pointer-events: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.page-head{
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 10px;
  color: var(--muted);
  font-size: 13px;
}
.dots{ display:flex; gap: 6px; }
.dots span{
  width: 10px; height: 10px; border-radius: 50%;
  background: rgba(15,23,42,.14);
}
.url{
  font-weight: 800;
  color: var(--muted2);
}
.page-body{
  padding-top: 12px;
  display: grid;
  gap: 10px;
}
.para{
  font-size: 15px;
  line-height: 1.7;
  color: rgba(15, 23, 42, .88);
  white-space: pre-wrap;
}

/* Match extension smart-mode look: word + small translation next to it */
.st-wordwrap{ display: inline; }
.smart-soft,
.smart-hard{
  border-bottom: 2px solid rgba(255, 200, 0, 0.6);
  border-radius: 0;
}
.smart-hard{
  border-bottom-color: rgba(255, 100, 100, 0.6);
}
[data-st-token-tr]{
  margin-left: 2px;
  font-size: 0.86em;
  opacity: 0.85;
  color: rgba(15, 23, 42, .84);
}
[data-st-token-tr].loading{
  opacity: 0.45;
  transform: translateY(1px);
}
[data-st-token-tr].filled{
  opacity: 0.9;
  transform: translateY(0);
  transition: opacity .18s ease, transform .18s ease;
}
.smart-soft[data-st-token-tr],
.smart-hard[data-st-token-tr]{
  border: 0;
  background: transparent;
  padding: 0;
}
.bilingual{
  border-top: 1px dashed rgba(15,23,42,.16);
  padding-top: 10px;
  display: none;
}
.bilingual-label{
  font-size: 12px;
  font-weight: 900;
  color: var(--muted2);
  margin-bottom: 6px;
}
.bilingual-text{
  color: rgba(15,23,42,.86);
}
.legend{
  font-size: 12px;
  color: var(--muted2);
}

@media (max-width: 920px){
  .demo{ grid-template-columns: 1fr; }
  .form-row{ grid-template-columns: 1fr; }
}

@media (max-width: 920px){
  .hero-grid{ grid-template-columns: 1fr; }
  .headline{ font-size: 40px; }
  .grid{ grid-template-columns: 1fr; }
  .two-col{ grid-template-columns: 1fr; }
}