/* dsh-effort-sync — deep-space HUD, same language as the dsh-real-model site.
   Layout rules learned the hard way: no nowrap in code (scroll instead),
   min-width:0 on grid children, and reveals that never leave a section blank. */

:root {
  --bg: #070a11;
  --bg-2: #0a0f18;
  --panel: rgba(13, 20, 32, 0.72);
  --panel-solid: #0d1420;
  --line: rgba(120, 160, 200, 0.16);
  --line-strong: rgba(120, 200, 230, 0.34);
  --fg: #d7e3f4;
  --fg-dim: #8ea3bd;
  --fg-faint: #64758c;
  --cyan: #22d3ee;
  --violet: #a78bfa;
  --green: #4ade80;
  --amber: #fbbf24;
  --red: #f87171;
  --mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", "Cascadia Code", Consolas, "Liberation Mono", monospace;
  --sans: "Inter", "Segoe UI", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", system-ui, sans-serif;
  --radius: 12px;
  --maxw: 1120px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden; /* belt: nothing may widen the page */
}

body { position: relative; min-height: 100vh; }

a { color: inherit; text-decoration: none; }
code { font-family: var(--mono); font-size: 0.92em; }

/* ---------- background layers ---------- */
#mesh {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.55;
}
.vignette {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(120% 80% at 50% -10%, rgba(34, 211, 238, 0.10), transparent 60%),
    radial-gradient(90% 70% at 110% 20%, rgba(167, 139, 250, 0.10), transparent 55%),
    radial-gradient(120% 120% at 50% 120%, rgba(0, 0, 0, 0.75), transparent 60%);
}
.scanlines {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0.16;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.045) 0px,
    rgba(255, 255, 255, 0.045) 1px,
    transparent 1px,
    transparent 3px
  );
}

/* ---------- nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 14px max(20px, calc((100vw - var(--maxw)) / 2));
  backdrop-filter: blur(10px);
  background: linear-gradient(to bottom, rgba(7, 10, 17, 0.92), rgba(7, 10, 17, 0.55));
  border-bottom: 1px solid var(--line);
}
.nav-brand { display: inline-flex; align-items: center; gap: 9px; font-family: var(--mono); font-size: 14px; }
.nav-logo { color: var(--cyan); text-shadow: 0 0 12px rgba(34, 211, 238, 0.7); }
.nav-name .dim { color: var(--fg-faint); }
.nav-links { display: flex; gap: 18px; margin-left: auto; font-size: 13px; color: var(--fg-dim); }
.nav-links a:hover { color: var(--cyan); }
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 13px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 13px;
  font-family: var(--mono);
  color: var(--fg);
  background: rgba(34, 211, 238, 0.06);
  transition: background 160ms ease, transform 160ms ease;
}
.nav-cta:hover { background: rgba(34, 211, 238, 0.16); transform: translateY(-1px); }

/* ---------- layout ---------- */
main { position: relative; z-index: 3; }
.section, .hero, .cta {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 86px 22px;
}
.hero { padding-top: 70px; padding-bottom: 60px; }

.section-head { max-width: 720px; margin-bottom: 34px; }
.kicker {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  opacity: 0.85;
  margin-bottom: 12px;
}
.section-head h2, .cta h2 {
  margin: 0 0 12px;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.25;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.section-desc { margin: 0; color: var(--fg-dim); font-size: 15px; line-height: 1.75; }
.section-desc code, .note code, .list code, .card code, .step-note code, .kv-row code {
  color: var(--cyan);
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.16);
  border-radius: 5px;
  padding: 1px 5px;
  overflow-wrap: anywhere;
}

/* ---------- hero ---------- */
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--fg-dim);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 13px;
  margin-bottom: 22px;
}
.pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: pulse 2.2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.5); opacity: 0.55; }
}

.hero-title {
  margin: 0 0 20px;
  font-size: clamp(30px, 5.6vw, 58px);
  line-height: 1.14;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.hero-title .line { display: block; }
.hero-title .glow {
  color: #eaf6ff;
  text-shadow:
    0 0 22px rgba(34, 211, 238, 0.35),
    0 0 60px rgba(167, 139, 250, 0.22);
}
.hero-title code {
  font-size: 0.66em;
  vertical-align: middle;
  color: var(--cyan);
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.2);
  border-radius: 8px;
  padding: 2px 8px;
}
.hero-sub {
  max-width: 720px;
  margin: 0 0 26px;
  color: var(--fg-dim);
  font-size: 16px;
  line-height: 1.8;
}
.hero-sub strong { color: var(--fg); font-weight: 600; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 34px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 20px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}
.btn-primary {
  background: linear-gradient(120deg, rgba(34, 211, 238, 0.92), rgba(56, 189, 248, 0.86));
  color: #04121a;
  box-shadow: 0 0 26px rgba(34, 211, 238, 0.28);
}
.btn-primary:hover { transform: translateY(-1px); }
.btn-ghost {
  border-color: var(--line-strong);
  color: var(--fg);
  background: rgba(255, 255, 255, 0.02);
}
.btn-ghost:hover { background: rgba(34, 211, 238, 0.1); transform: translateY(-1px); }

/* ---------- terminal ---------- */
.terminal {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(10, 15, 24, 0.94), rgba(8, 12, 20, 0.9));
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.03);
  overflow: hidden;
  margin-bottom: 34px;
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }
.terminal-title { margin-left: 8px; font-family: var(--mono); font-size: 12px; color: var(--fg-faint); }
.terminal-body { padding: 18px; display: flex; flex-direction: column; gap: 16px; }
.msg { display: flex; flex-direction: column; gap: 7px; }
.msg .who { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; color: var(--fg-faint); }
.msg.user .who { color: var(--violet); }
.msg.bot .who { color: var(--cyan); }
.msg p { margin: 0; font-size: 14.5px; line-height: 1.7; color: var(--fg); }
.code-out {
  margin: 0;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  border-radius: 8px;
  background: rgba(4, 8, 14, 0.85);
  color: #c9e8f5;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.7;
  white-space: pre;
  overflow-x: auto; /* scroll, never widen the page */
  max-width: 100%;
}
.chip-row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid rgba(34, 211, 238, 0.28);
  background: rgba(34, 211, 238, 0.08);
  font-family: var(--mono);
  font-size: 12px;
}
.chip-icon { color: var(--cyan); }
.chip-badge {
  font-size: 10px;
  letter-spacing: 0.1em;
  color: #04121a;
  background: var(--cyan);
  border-radius: 5px;
  padding: 1px 6px;
}
.chip-note { font-size: 12px; color: var(--fg-faint); }

/* ---------- stats ---------- */
.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.stat {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  background: var(--panel);
  position: relative;
  overflow: hidden;
}
.stat::after {
  content: "";
  position: absolute;
  right: -30%;
  top: -60%;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.14), transparent 65%);
}
.stat-num {
  display: block;
  font-family: var(--mono);
  font-size: 30px;
  color: #eaf6ff;
  text-shadow: 0 0 18px rgba(34, 211, 238, 0.35);
}
.stat-label {
  display: block;
  margin-top: 6px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--fg-faint);
  line-height: 1.6;
}

/* ---------- cards ---------- */
.grid-3, .grid-2 { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; }
.grid-3 > *, .grid-2 > * { min-width: 0; } /* grid children must be allowed to shrink */

.card {
  position: relative;
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  transition: border-color 180ms ease, transform 180ms ease;
}
.card:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.card-lg { padding: 24px; }
.card-top { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.card-meta { font-family: var(--mono); font-size: 11.5px; color: var(--fg-faint); }
.card-idx {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--cyan);
  opacity: 0.8;
  margin-bottom: 10px;
}
.card h3 { margin: 0 0 10px; font-size: 17px; font-weight: 600; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--fg-dim); font-size: 14px; line-height: 1.75; }
.card p + p { margin-top: 10px; }
.tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid currentColor;
}
.tag-cyan { color: var(--cyan); background: rgba(34, 211, 238, 0.08); }
.tag-violet { color: var(--violet); background: rgba(167, 139, 250, 0.08); }
.tag-green { color: var(--green); background: rgba(74, 222, 128, 0.08); }

/* mock of the settings-panel button */
.mock {
  margin-top: 16px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(4, 8, 14, 0.6);
}
.mock-head { display: flex; align-items: center; gap: 10px; }
.mock-title { font-size: 12px; color: var(--fg-dim); }
.mock-btn {
  margin-left: auto;
  font-size: 12px;
  padding: 5px 11px;
  border-radius: 7px;
  border: 1px solid var(--line-strong);
  color: var(--fg);
  background: rgba(255, 255, 255, 0.03);
}
.mock-hint { margin: 10px 0 12px; font-size: 12px; line-height: 1.7; color: var(--fg-faint); }
.mock-out {
  margin: 0;
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.7;
  color: #bfe6f2;
  white-space: pre;
  overflow-x: auto;
  max-width: 100%;
}

/* key/value list */
.kv { margin-top: 16px; display: flex; flex-direction: column; }
.kv-row {
  display: grid;
  grid-template-columns: minmax(90px, 140px) minmax(0, 1fr);
  gap: 12px;
  padding: 9px 0;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--fg-dim);
}
.kv-row:first-child { border-top: 0; }
.kv-row span { min-width: 0; }

/* ---------- flow diagram ---------- */
.flow {
  margin-top: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 10px;
  overflow: hidden;
}
.flow svg { display: block; width: 100%; height: auto; }
.wire {
  fill: none;
  stroke: url(#wire);
  stroke-width: 1.6;
  stroke-dasharray: 6 10;
  animation: flow 3.4s linear infinite;
}
@keyframes flow { to { stroke-dashoffset: -64; } }
.node { fill: var(--cyan); opacity: 0.8; }
.node.core { fill: #eaf6ff; }
.svg-label { fill: var(--fg); font-family: var(--mono); font-size: 13px; }
.svg-sub { fill: var(--fg-faint); font-family: var(--mono); font-size: 11.5px; }

/* ---------- diff table ---------- */
.table-wrap {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  overflow-x: auto; /* wide tables scroll inside their own box */
  max-width: 100%;
}
.diff { width: 100%; border-collapse: collapse; min-width: 640px; font-size: 13.5px; }
.diff th, .diff td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.diff th {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--fg-faint);
  background: rgba(255, 255, 255, 0.02);
}
.diff tr:last-child td { border-bottom: 0; }
.diff .ok { color: var(--green); }
.diff .none { color: var(--fg-faint); }
.diff .skip { color: var(--amber); }
.diff .dim { color: var(--fg-faint); }
.note {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--line-strong);
  color: var(--fg-dim);
  font-size: 13.5px;
  line-height: 1.8;
}
.note strong { color: var(--fg); }

/* ---------- lists / rules ---------- */
.list { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 12px; }
.list li {
  position: relative;
  padding: 14px 16px 14px 40px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  color: var(--fg-dim);
  font-size: 13.5px;
  line-height: 1.75;
}
.list li strong { color: var(--fg); }
.list li::before {
  content: "◈";
  position: absolute;
  left: 15px;
  top: 14px;
  color: var(--cyan);
  font-size: 12px;
}
.rule {
  margin-top: 18px;
  padding: 16px 18px;
  border: 1px dashed rgba(251, 191, 36, 0.35);
  border-radius: var(--radius);
  background: rgba(251, 191, 36, 0.05);
}
.rule-mark {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--amber);
  margin-bottom: 8px;
}
.rule p { margin: 0; color: var(--fg-dim); font-size: 13.5px; line-height: 1.8; }
.rule strong { color: var(--fg); }

/* ---------- install steps ---------- */
.steps { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 16px; }
.steps > li {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}
.steps > li > div { min-width: 0; }
.step-num { font-family: var(--mono); font-size: 20px; color: var(--cyan); opacity: 0.75; }
.steps h3 { margin: 0 0 10px; font-size: 16px; font-weight: 600; }
.step-note { margin: 10px 0 0; color: var(--fg-dim); font-size: 13.5px; line-height: 1.75; }
.cmd {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: rgba(4, 8, 14, 0.72);
  overflow-x: auto;
  max-width: 100%;
}
.cmd code { color: #cdeefb; font-size: 13px; white-space: pre; }
.copy {
  margin-left: auto;
  flex: none;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--fg-dim);
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  padding: 4px 9px;
  cursor: pointer;
  transition: color 160ms ease, background 160ms ease;
}
.copy:hover { color: var(--fg); background: rgba(34, 211, 238, 0.12); }
.copy.done { color: var(--green); border-color: rgba(74, 222, 128, 0.5); }

.ci {
  margin-top: 18px;
  padding: 20px;
  border: 1px solid rgba(74, 222, 128, 0.22);
  border-radius: var(--radius);
  background: rgba(74, 222, 128, 0.045);
}
.ci-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.ci-title { font-family: var(--mono); font-size: 13px; color: var(--fg); }
.ci-state { font-family: var(--mono); font-size: 11.5px; color: var(--green); margin-left: auto; }
.ci p { margin: 0 0 12px; color: var(--fg-dim); font-size: 13.5px; line-height: 1.8; }

/* ---------- cta + footer ---------- */
.cta { text-align: center; }
.cta p { color: var(--fg-dim); font-size: 14.5px; margin: 0 0 22px; }
.cta .hero-actions { justify-content: center; }
.foot {
  position: relative;
  z-index: 3;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
  padding: 26px max(20px, calc((100vw - var(--maxw)) / 2));
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-dim);
}
.foot .dim { color: var(--fg-faint); }

/* ---------- reveal (transform-only, never leaves a blank section) ---------- */
[data-reveal] {
  opacity: 0;
  transform: translate3d(0, 16px, 0);
  transition: opacity 520ms ease, transform 620ms cubic-bezier(0.22, 1, 0.36, 1);
}
[data-reveal].is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  .wire, .pulse { animation: none; }
}

/* no-JS safety: if the script never runs, everything is visible */
.no-js [data-reveal] { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .nav-links { display: none; }
}
@media (max-width: 720px) {
  .section, .hero, .cta { padding: 60px 18px; }
  .grid-3, .grid-2 { grid-template-columns: minmax(0, 1fr); }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps > li { grid-template-columns: minmax(0, 1fr); }
  .step-num { font-size: 16px; }
  .kv-row { grid-template-columns: minmax(0, 1fr); gap: 4px; }
}
@media (max-width: 480px) {
  .stats { grid-template-columns: minmax(0, 1fr); }
  .nav { padding: 12px 16px; }
}