/* Symbiqo site — dark, rounded cards, dot status, tabular numerals */
:root {
  --bg: #0b0f14;
  --bg-soft: #10161d;
  --card: #131b24;
  --card-edge: rgba(255, 255, 255, 0.07);
  --line: rgba(255, 255, 255, 0.08);
  --text: #e6edf3;
  --text-dim: #9aa7b4;
  --text-faint: #66727e;
  --blue: #0b6fd4;
  --blue-bright: #3b93f0;
  --green: #3fb950;
  --amber: #d29922;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue-bright); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1060px; margin: 0 auto; padding: 0 24px; }

/* ---------- header ---------- */
header.site {
  position: sticky; top: 0; z-index: 10;
  background: rgba(11, 15, 20, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; gap: 28px; height: 60px;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 650; font-size: 16px; }
.brand:hover { text-decoration: none; }
.brand img { width: 26px; height: 26px; display: block; }
.nav-links { display: flex; gap: 22px; margin-left: 8px; }
.nav-links a { color: var(--text-dim); font-size: 14px; }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-spacer { flex: 1; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  border-radius: 10px; padding: 9px 18px;
  font-size: 14px; font-weight: 600; cursor: pointer;
  border: 1px solid transparent; transition: background .15s, border-color .15s;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: #1180ee; }
.btn-ghost { border-color: var(--card-edge); color: var(--text); background: var(--card); }
.btn-ghost:hover { border-color: rgba(255,255,255,0.18); }

/* ---------- hero ---------- */
.hero { padding: 84px 0 60px; }
.badge-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 22px; }
.badge {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--mono); font-size: 12.5px;
  color: var(--text-dim); background: var(--card);
  border: 1px solid var(--card-edge); border-radius: 999px;
  padding: 4px 12px; font-variant-numeric: tabular-nums;
}
.dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--green); flex: none;
  box-shadow: 0 0 6px rgba(63, 185, 80, 0.7);
}
.dot.blue { background: var(--blue-bright); box-shadow: 0 0 6px rgba(59,147,240,.7); }
.dot.amber { background: var(--amber); box-shadow: 0 0 6px rgba(210,153,34,.75); }

h1.hero-title {
  font-size: 42px; line-height: 1.22; font-weight: 700;
  letter-spacing: -0.5px; max-width: 720px;
}
.hero-title .accent { color: var(--blue-bright); }
.hero-sub {
  margin-top: 18px; max-width: 640px;
  color: var(--text-dim); font-size: 16.5px;
}
.hero-cta { display: flex; gap: 12px; margin-top: 32px; flex-wrap: wrap; }

/* ---------- sections ---------- */
section { padding: 56px 0; }
.section-head { margin-bottom: 30px; }
.eyebrow {
  font-family: var(--mono); font-size: 12px; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--blue-bright); margin-bottom: 8px;
}
h2 { font-size: 26px; font-weight: 700; letter-spacing: -0.3px; }
.section-desc { color: var(--text-dim); margin-top: 8px; max-width: 620px; }

.grid { display: grid; gap: 14px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 860px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  h1.hero-title { font-size: 32px; }
}

.card {
  background: var(--card); border: 1px solid var(--card-edge);
  border-radius: 14px; padding: 20px 22px;
}
.card h3 { font-size: 15.5px; font-weight: 650; display: flex; align-items: center; gap: 9px; }
.card p { color: var(--text-dim); font-size: 13.5px; margin-top: 8px; }

.pdot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.pdot.ds { background: #4d6bfe; }
.pdot.glm { background: #2f7bff; }
.pdot.qw { background: #7c5cff; }
.pdot.mimo { background: #ff6900; }
.pdot.kimi { background: #16c2a3; }
.pdot.mm { background: #f5455c; }

.meta-mono {
  font-family: var(--mono); font-size: 12px; color: var(--text-faint);
  margin-top: 10px; font-variant-numeric: tabular-nums;
}
.tag {
  display: inline-block; font-size: 11px; font-family: var(--mono);
  border: 1px solid var(--card-edge); border-radius: 6px;
  padding: 1px 7px; margin-left: 8px; color: var(--text-faint);
  vertical-align: 1px;
}
.tag.no { color: var(--amber); border-color: rgba(210,153,34,.35); }

/* ---------- flow ---------- */
.flow {
  display: flex; align-items: stretch; gap: 0; flex-wrap: wrap;
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: 14px; padding: 22px;
}
.flow-node {
  flex: 1 1 0; min-width: 120px; text-align: center;
  padding: 14px 10px; position: relative;
}
.flow-node .fn-title { font-family: var(--mono); font-size: 13px; color: var(--text); }
.flow-node .fn-sub { font-size: 12px; color: var(--text-faint); margin-top: 4px; }
.flow-arrow {
  display: flex; align-items: center; color: var(--text-faint);
  font-family: var(--mono); font-size: 15px; padding: 0 4px;
}

/* ---------- steps ---------- */
.step { display: flex; gap: 16px; }
.step-num {
  font-family: var(--mono); font-variant-numeric: tabular-nums;
  width: 30px; height: 30px; flex: none; border-radius: 9px;
  background: rgba(11, 111, 212, 0.18); color: var(--blue-bright);
  display: flex; align-items: center; justify-content: center;
  font-size: 13.5px; font-weight: 700; border: 1px solid rgba(59,147,240,.25);
}
.step pre {
  margin-top: 10px; background: #0a0e13; border: 1px solid var(--line);
  border-radius: 10px; padding: 12px 16px; overflow-x: auto;
  font-family: var(--mono); font-size: 12.5px; color: #b8c4cf;
  font-variant-numeric: tabular-nums; line-height: 1.7;
}
.step .step-body { flex: 1; }
.step .step-body h3 { font-size: 14.5px; padding-top: 4px; }
.step .step-body p { color: var(--text-dim); font-size: 13.5px; margin-top: 4px; }

/* ---------- download page ---------- */
.dl-section { margin-bottom: 44px; }
.ver-line {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
}
.dl-card {
  display: flex; align-items: center; gap: 18px;
  background: var(--card); border: 1px solid var(--card-edge);
  border-radius: 14px; padding: 18px 20px;
}
.dl-main { flex: 1; min-width: 0; }
.dl-file {
  font-family: var(--mono); font-size: 13.5px; color: var(--text);
  word-break: break-all; font-variant-numeric: tabular-nums;
}
.dl-meta {
  display: flex; gap: 14px; margin-top: 7px; flex-wrap: wrap;
  font-family: var(--mono); font-size: 12px; color: var(--text-faint);
  font-variant-numeric: tabular-nums;
}
.dl-meta .sha { max-width: 380px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.btn-dl { flex: none; }
.os-chip {
  width: 42px; height: 42px; flex: none; border-radius: 12px;
  background: var(--bg-soft); border: 1px solid var(--card-edge);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: 11px; color: var(--text-dim); font-weight: 700;
}

/* OS icons */
.os-ic {
  width: 50px; height: 50px; flex: none; border-radius: 13px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.14), 0 2px 10px rgba(0,0,0,0.4);
}
.os-ic svg { width: 28px; height: 28px; display: block; }
.os-ic.win { background: linear-gradient(155deg, #23a3ec, #0067b8); }
.os-ic.mac { background: linear-gradient(155deg, #45454c, #141416); border: 1px solid rgba(255,255,255,0.16); }
.os-ic.lnx { background: linear-gradient(155deg, #f8f9fb, #dde1e6); }

/* beta apply */
.apply-card {
  background: var(--card); border: 1px solid var(--card-edge);
  border-radius: 16px; padding: 28px 30px;
}
.apply-card h3 { font-size: 18px; }
.apply-card .apply-desc { color: var(--text-dim); font-size: 13.5px; margin-top: 8px; }
.apply-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 26px; margin-top: 20px; }
@media (max-width: 860px) { .apply-grid { grid-template-columns: 1fr; } }
.apply-steps { display: flex; flex-direction: column; gap: 14px; }
.apply-step { display: flex; gap: 13px; }
.apply-step .no {
  font-family: var(--mono); font-variant-numeric: tabular-nums;
  width: 24px; height: 24px; flex: none; border-radius: 8px; margin-top: 1px;
  background: rgba(11, 111, 212, 0.18); color: var(--blue-bright);
  border: 1px solid rgba(59,147,240,.25);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700;
}
.apply-step .t { font-size: 13.5px; color: var(--text); }
.apply-step .t .dim { color: var(--text-dim); }
.apply-step .t code {
  font-family: var(--mono); font-size: 12px; color: var(--blue-bright);
  background: rgba(59,147,240,0.1); border-radius: 5px; padding: 1px 6px;
}
.apply-side { display: flex; flex-direction: column; gap: 14px; }
.apply-fact {
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: 12px; padding: 14px 16px;
}
.apply-fact .k {
  font-size: 11px; letter-spacing: 1px; text-transform: uppercase;
  font-family: var(--mono); color: var(--text-faint); margin-bottom: 5px;
}
.apply-fact .v { font-size: 14px; color: var(--text); }
.apply-fact .v.mono { font-family: var(--mono); font-size: 13.5px; word-break: break-all; }
.apply-cta { margin-top: auto; display: flex; }
.apply-cta .btn { flex: 1; justify-content: center; padding: 12px 18px; font-size: 14.5px; }

/* beta announcement */
.beta-card {
  background: rgba(210, 153, 34, 0.07);
  border: 1px solid rgba(210, 153, 34, 0.35);
  border-radius: 14px; padding: 20px 22px; margin-bottom: 34px;
}
.beta-card h3 { font-size: 15.5px; display: flex; align-items: center; gap: 9px; }
.beta-card p { color: var(--text-dim); font-size: 13.5px; margin-top: 8px; }
.beta-perks { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.perk {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--bg-soft); border: 1px solid var(--card-edge);
  border-radius: 10px; padding: 8px 14px; font-size: 13px; color: var(--text);
}

/* contact */
.contact-card {
  background: var(--card); border: 1px solid var(--card-edge);
  border-radius: 14px; padding: 26px 28px;
  display: flex; align-items: center; gap: 22px; flex-wrap: wrap;
}
.contact-card .cc-main { flex: 1; min-width: 240px; }
.contact-card h3 { font-size: 17px; }
.contact-card p { color: var(--text-dim); font-size: 13.5px; margin-top: 6px; }

.checksum-note {
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: 14px; padding: 18px 22px; margin-top: 8px;
}
.checksum-note pre {
  background: #0a0e13; border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 16px; margin-top: 12px; overflow-x: auto;
  font-family: var(--mono); font-size: 12.5px; color: #b8c4cf; line-height: 1.7;
}
.checksum-note p { color: var(--text-dim); font-size: 13.5px; }

/* ---------- footer ---------- */
footer.site {
  border-top: 1px solid var(--line); padding: 34px 0 44px; margin-top: 30px;
}
.foot-inner {
  display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
  color: var(--text-faint); font-size: 13px;
}
.foot-inner .mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.foot-links { display: flex; gap: 18px; }
.foot-links a { color: var(--text-dim); }

/* ---------- mobile ---------- */
.nav-toggle {
  display: none;
  background: var(--card); border: 1px solid var(--card-edge);
  border-radius: 9px; color: var(--text); font-size: 17px;
  padding: 6px 12px; cursor: pointer; line-height: 1;
}
@media (max-width: 760px) {
  .wrap { padding: 0 18px; }
  .nav { height: 54px; gap: 12px; }
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute; top: 54px; left: 0; right: 0;
    flex-direction: column; gap: 0;
    background: rgba(13, 18, 24, 0.98);
    border-bottom: 1px solid var(--line);
    padding: 6px 0;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 22px; font-size: 15px; }

  .hero { padding: 44px 0 34px; }
  h1.hero-title { font-size: 29px; letter-spacing: -0.3px; }
  .hero-sub { font-size: 15px; }
  .hero-cta { margin-top: 24px; }
  .hero-cta .btn { width: 100%; justify-content: center; }
  .badge { font-size: 11.5px; padding: 3px 10px; }

  section { padding: 40px 0; }
  h2 { font-size: 22px; }
  .section-desc { font-size: 14px; }
  .card { padding: 17px 18px; }
  .card p { font-size: 13px; }

  .flow { flex-direction: column; padding: 14px 16px; gap: 0; }
  .flow-node { min-width: 0; padding: 9px 4px; text-align: left; display: flex; align-items: baseline; gap: 10px; }
  .flow-node .fn-sub { margin-top: 0; }
  .flow-arrow { justify-content: center; padding: 0; font-size: 13px; line-height: 1; }

  .step { gap: 13px; }
  .step pre { font-size: 11.5px; padding: 10px 12px; }

  .dl-card { flex-wrap: wrap; row-gap: 12px; padding: 16px; }
  .os-ic { width: 44px; height: 44px; border-radius: 11px; }
  .os-ic svg, .os-ic img { width: 24px; height: 24px; }
  .dl-main { flex: 1 1 calc(100% - 60px); }
  .dl-file { font-size: 12.5px; }
  .dl-meta { gap: 10px; font-size: 11px; }
  .dl-meta .sha { max-width: 100%; }
  .btn-dl { width: 100%; justify-content: center; }

  .beta-card { padding: 17px 18px; }
  .checksum-note { padding: 16px 18px; }
  .checksum-note pre { font-size: 11.5px; }
  .apply-card { padding: 20px 18px; }
  .contact-card { flex-direction: column; align-items: stretch; gap: 16px; }
  .contact-card .btn { justify-content: center; }

  footer.site { padding: 24px 0 34px; }
  .foot-inner { flex-direction: column; align-items: flex-start; gap: 8px; }
}