:root {
  --ink: #07111d;
  --navy: #0b1b2d;
  --panel: #10263a;
  --panel-light: #153149;
  --line: rgba(185, 222, 227, .16);
  --warm: #f5f1e8;
  --muted: #91a8b4;
  --lime: #c8f45d;
  --cyan: #72e0e3;
  --orange: #ff9c54;
  --red: #ff6b70;
  --shadow: 0 24px 80px rgba(0, 0, 0, .25);
  color-scheme: dark;
  font-family: "Segoe UI", Arial, sans-serif;
  background: var(--ink);
  color: var(--warm);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: radial-gradient(circle at 88% 0%, #173951 0, transparent 32rem), var(--ink); }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button, a, input { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--lime); outline-offset: 3px; }

.site-header, .shell, .site-footer { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }
.site-header { display: flex; align-items: center; justify-content: space-between; min-height: 84px; border-bottom: 1px solid var(--line); }
.brand { display: flex; gap: 11px; align-items: center; font-size: 14px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.brand-mark { display: grid; place-items: center; width: 31px; height: 31px; border: 1px solid var(--lime); color: var(--lime); font-size: 10px; letter-spacing: 0; }
.nav-links { display: flex; gap: 27px; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .12em; }
.nav-links a:hover { color: var(--warm); }
.header-state, .hero-note { color: var(--muted); font-size: 11px; letter-spacing: .13em; text-transform: uppercase; }
.pulse-dot, .status-dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 16px var(--lime); }
.header-state .pulse-dot { margin-right: 7px; }

.hero { position: relative; padding: 94px 0 70px; max-width: 850px; }
.hero::after { content: "01"; position: absolute; right: 0; top: 80px; color: rgba(200, 244, 93, .13); font-size: clamp(110px, 20vw, 250px); font-weight: 800; line-height: .8; letter-spacing: -.1em; pointer-events: none; }
.eyebrow, .kicker { color: var(--lime); font-size: 10px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; }
.hero h1 { position: relative; z-index: 1; margin: 20px 0 24px; max-width: 780px; font-size: clamp(52px, 9vw, 108px); font-weight: 700; letter-spacing: -.07em; line-height: .87; }
.hero h1 em { color: var(--lime); font-family: Georgia, serif; font-weight: 400; }
.hero-copy { position: relative; z-index: 1; max-width: 520px; color: var(--muted); font-size: 17px; line-height: 1.6; }
.hero-actions { position: relative; z-index: 1; display: flex; align-items: center; gap: 22px; margin-top: 33px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 43px; border: 1px solid transparent; padding: 0 17px; cursor: pointer; font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; transition: transform .2s, background .2s, border-color .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--lime); color: var(--ink); }
.button-primary:hover { background: #e0ff89; }
.button-secondary { border-color: var(--line); background: transparent; color: var(--warm); }
.button-secondary:hover { border-color: var(--lime); color: var(--lime); }
.boost-target { position: relative; z-index: 1; display: inline-flex; margin-top: 30px; padding: 10px 13px; border-left: 2px solid var(--cyan); color: var(--muted); font-size: 12px; }
.hero-proof { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); max-width: 670px; margin-top: 38px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.hero-proof div { display: flex; flex-direction: column; gap: 7px; padding: 15px 18px 15px 0; }
.hero-proof div + div { border-left: 1px solid var(--line); padding-left: 18px; }
.hero-proof strong { color: var(--lime); font-size: 15px; letter-spacing: .04em; }
.hero-proof span { color: var(--muted); font-size: 10px; line-height: 1.4; text-transform: uppercase; letter-spacing: .08em; }

.metric-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); box-shadow: var(--shadow); }
.metric-card { min-height: 132px; padding: 22px; background: var(--panel); }
.metric-card-accent { background: linear-gradient(140deg, #243c3c, var(--panel)); }
.metric-label, .form-hint, .activity-time { display: block; color: var(--muted); font-size: 10px; letter-spacing: .13em; text-transform: uppercase; }
.metric-value { display: block; margin: 17px 0 10px; font-size: 37px; letter-spacing: -.06em; }
.metric-value small { margin-left: 5px; color: var(--cyan); font-size: 12px; font-weight: 400; letter-spacing: 0; }
.metric-trend { color: var(--lime); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }

.layout-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; padding: 16px 0 80px; }
.panel { min-width: 0; padding: 27px; border: 1px solid var(--line); background: rgba(16, 38, 58, .9); box-shadow: var(--shadow); }
.panel-telemetry { grid-column: span 7; }
.panel-search { grid-column: span 5; }
.panel-command { grid-column: span 7; }
.panel-health { grid-column: span 5; }
.panel-activity { grid-column: span 7; }
.panel-profile, .panel-lazy { grid-column: span 5; }
.panel-sse { grid-column: span 12; }
.panel-history { grid-column: span 7; }
.panel-shaping, .panel-headers, .panel-validation { grid-column: span 7; }
.panel-sync, .panel-transition { grid-column: span 5; }
.panel-heading { display: flex; align-items: start; justify-content: space-between; gap: 20px; margin-bottom: 25px; }
.panel-actions { display: flex; align-items: center; gap: 10px; }
.explain-button { border: 1px solid rgba(114, 224, 227, .35); padding: 5px 8px; background: rgba(114, 224, 227, .07); color: var(--cyan); cursor: pointer; font-size: 9px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.explain-button:hover { border-color: var(--lime); background: rgba(200, 244, 93, .08); color: var(--lime); }
.panel h2 { margin: 7px 0 0; font-size: 23px; letter-spacing: -.04em; }
.panel-index { color: var(--muted); font-size: 10px; letter-spacing: .13em; }
.status-chip { padding: 5px 8px; font-size: 9px; letter-spacing: .12em; }
.status-chip-lime { background: rgba(200, 244, 93, .13); color: var(--lime); }
.status-chip-cyan { background: rgba(114, 224, 227, .13); color: var(--cyan); }
.status-chip-orange { background: rgba(255, 156, 84, .13); color: var(--orange); }
.panel-footer, .search-meta, .health-meta { display: flex; align-items: center; justify-content: space-between; gap: 15px; }
.loading-label { color: var(--cyan); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.htmx-indicator { opacity: 0; transition: opacity .2s; }
.htmx-request .htmx-indicator, .htmx-indicator.htmx-request { opacity: 1; }
.fragment-status { display: flex; align-items: center; gap: 8px; margin-bottom: 24px; color: var(--muted); font-size: 11px; }
.fragment-status strong { color: var(--warm); }
.status-dot-lime, .activity-dot-lime { background: var(--lime); box-shadow: 0 0 12px var(--lime); }
.status-dot-cyan, .activity-dot-cyan { background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }
.status-dot-red { background: var(--red); box-shadow: 0 0 12px var(--red); }
.telemetry-row { display: grid; grid-template-columns: 100px 1fr 70px; align-items: center; gap: 15px; margin: 15px 0; color: var(--muted); font-size: 11px; }
.telemetry-row strong { color: var(--warm); font-size: 12px; text-align: right; }
.bar { height: 5px; overflow: hidden; background: rgba(255, 255, 255, .08); }
.bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--cyan), var(--lime)); }
.field { width: 100%; min-height: 45px; border: 1px solid var(--line); border-radius: 0; padding: 0 13px; outline: none; background: rgba(0, 0, 0, .18); color: var(--warm); }
.field-label { display: block; margin-bottom: 8px; color: var(--muted); font-size: 10px; letter-spacing: .13em; text-transform: uppercase; }
.field::placeholder { color: #66808d; }
.field:focus { border-color: var(--lime); }
.field-search { margin-bottom: 9px; }
.search-meta { margin-bottom: 21px; color: var(--muted); font-size: 10px; }
.search-results { min-height: 89px; }
.result-count { margin-bottom: 10px; color: var(--cyan); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.command-result { display: grid; grid-template-columns: 1fr auto; width: 100%; margin: 5px 0; border: 0; border-bottom: 1px solid var(--line); padding: 8px 0; background: transparent; color: var(--warm); cursor: pointer; text-align: left; }
.command-result:hover .command-name { color: var(--lime); }
.command-name { font-size: 13px; font-weight: 700; }
.command-description { grid-column: 1; margin-top: 3px; color: var(--muted); font-size: 11px; }
.command-arrow { grid-column: 2; grid-row: 1 / span 2; color: var(--cyan); }
.empty-state { padding: 20px 0; color: var(--muted); font-size: 12px; line-height: 1.5; }
.stack-form label, .profile-form label { display: block; margin-bottom: 8px; color: var(--muted); font-size: 10px; letter-spacing: .13em; text-transform: uppercase; }
.input-row { display: flex; gap: 9px; }
.input-row .field { flex: 1; }
.form-hint { margin-top: 10px; letter-spacing: .04em; text-transform: none; }
.result-region { min-height: 62px; margin-top: 17px; padding-top: 14px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.explanation-region { margin-top: 22px; }
.explanation-card { border-top: 1px solid rgba(114, 224, 227, .3); padding-top: 16px; }
.explanation-title { display: flex; align-items: center; gap: 9px; color: var(--warm); font-size: 12px; }
.explanation-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 15px 0 0; }
.explanation-grid div { min-width: 0; }
.explanation-grid dt { color: var(--lime); font-size: 9px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.explanation-grid dd { margin: 7px 0 0; color: var(--muted); font-size: 11px; line-height: 1.55; }
.code-disclosure { margin-top: 17px; border-top: 1px solid var(--line); padding-top: 13px; }
.code-disclosure summary { color: var(--cyan); cursor: pointer; font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.code-disclosure summary:hover { color: var(--lime); }
.function-code { overflow-x: auto; margin: 13px 0 0; border: 1px solid var(--line); padding: 15px; background: rgba(0, 0, 0, .28); color: var(--warm); font: 11px/1.6 ui-monospace, SFMono-Regular, Consolas, monospace; white-space: pre; }
.result-card { display: flex; align-items: center; gap: 12px; }
.result-card > div { flex: 1; }
.result-card strong { color: var(--warm); font-size: 13px; }
.result-card p { margin: 4px 0 0; color: var(--muted); }
.result-time { color: var(--muted); font-size: 10px; }
.result-error strong { color: var(--red); }
.health-status { display: flex; align-items: end; justify-content: space-between; gap: 20px; min-height: 103px; }
.health-main { display: flex; align-items: center; gap: 14px; }
.health-main strong { display: block; margin-bottom: 7px; font-size: 27px; letter-spacing: -.05em; }
.health-main span:last-child { display: block; color: var(--muted); font-size: 11px; }
.health-orb { display: block; width: 18px; height: 18px; border-radius: 50%; }
.health-orb-lime { background: var(--lime); box-shadow: 0 0 24px var(--lime); }
.health-orb-orange { background: var(--orange); box-shadow: 0 0 24px var(--orange); }
.health-meta { color: var(--muted); font-size: 10px; letter-spacing: .1em; }
.activity-form { display: flex; gap: 9px; margin-bottom: 14px; }
.activity-list { border-top: 1px solid var(--line); }
.activity-item { display: flex; align-items: center; gap: 12px; min-height: 59px; border-bottom: 1px solid var(--line); }
.activity-item > div { flex: 1; }
.activity-item p { margin: 0 0 5px; font-size: 12px; }
.activity-dot { display: block; width: 7px; height: 7px; border-radius: 50%; }
.activity-dot-orange { background: var(--orange); box-shadow: 0 0 12px var(--orange); }
.icon-button { border: 0; background: transparent; color: var(--muted); cursor: pointer; font-size: 21px; }
.icon-button:hover { color: var(--red); }
.profile-display { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 116px; }
.profile-display strong { display: block; margin: 10px 0 8px; color: var(--cyan); font-size: 22px; }
.lazy-panel { min-height: 116px; display: grid; place-items: center; }
.lazy-loaded { display: flex; align-items: center; gap: 13px; width: 100%; }
.lazy-loaded div { flex: 1; }
.lazy-loaded p { margin: 8px 0 0; color: var(--muted); font-size: 11px; line-height: 1.5; }
.event-stream { min-height: 74px; display: grid; place-items: center; border: 1px dashed var(--line); padding: 18px; }
.sse-event { display: flex; align-items: center; gap: 12px; width: 100%; color: var(--warm); font-size: 13px; }
.sse-event time { margin-left: auto; color: var(--muted); font-size: 10px; }
.history-copy { max-width: 470px; margin: -5px 0 20px; color: var(--muted); font-size: 12px; line-height: 1.5; }
.history-result-region { min-height: 62px; margin-top: 18px; border-top: 1px solid var(--line); padding-top: 16px; color: var(--muted); font-size: 12px; }
.history-result { display: flex; align-items: center; gap: 12px; }
.history-result div { flex: 1; }
.history-result strong { display: block; color: var(--warm); font-size: 12px; }
.history-result p { margin: 5px 0 0; color: var(--muted); font-size: 11px; }
.advanced-result, .header-notice-region { min-height: 58px; margin-top: 17px; border-top: 1px solid var(--line); padding-top: 15px; color: var(--muted); font-size: 12px; line-height: 1.5; }
.response-envelope { color: var(--muted); font-size: 10px; }
.response-envelope-label { display: block; margin-bottom: 9px; color: var(--orange); letter-spacing: .1em; text-transform: uppercase; }
.selected-panel, .sync-result, .header-result, .header-notice, .validation-result { display: flex; align-items: center; gap: 11px; color: var(--warm); font-size: 12px; }
.selected-panel > div, .sync-result > div, .validation-result > div { flex: 1; }
.selected-panel p, .sync-result p, .validation-result p { margin: 5px 0 0; color: var(--muted); font-size: 11px; }
.selected-panel b, .sync-result b, .validation-result b { color: var(--cyan); }
.header-result span:last-child { margin-left: auto; color: var(--muted); font-size: 10px; }
.header-notice { border-left: 2px solid var(--lime); padding: 9px 0 9px 12px; }
.header-notice .panel-index { margin-left: auto; }
.transition-result { display: flex; align-items: center; justify-content: space-between; gap: 15px; min-height: 82px; }
.transition-result > div { display: flex; align-items: start; gap: 11px; }
.transition-result strong { display: block; color: var(--warm); font-size: 12px; }
.transition-result p { margin: 5px 0 0; color: var(--muted); font-size: 11px; }
.toast-region { min-height: 20px; }
.guidance-panel { display: grid; grid-template-columns: minmax(220px, .8fr) 1.5fr; gap: 35px; margin: 0 0 65px; border: 1px solid rgba(255, 156, 84, .28); padding: 28px; background: linear-gradient(135deg, rgba(255, 156, 84, .08), rgba(16, 38, 58, .88)); }
.guidance-intro h2 { margin: 8px 0 12px; font-size: 26px; letter-spacing: -.05em; }
.guidance-intro p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.6; }
.guidance-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.guidance-grid div { border-left: 1px solid var(--line); padding-left: 15px; }
.guidance-grid strong { color: var(--orange); font-size: 11px; letter-spacing: .05em; text-transform: uppercase; }
.guidance-grid p { margin: 9px 0 0; color: var(--muted); font-size: 11px; line-height: 1.55; }
.guidance-rule { grid-column: 2; display: flex; align-items: center; gap: 12px; border-top: 1px solid var(--line); padding-top: 16px; color: var(--warm); font-size: 12px; }
.guidance-rule span { color: var(--lime); font-size: 9px; letter-spacing: .12em; text-transform: uppercase; }
.site-footer { display: flex; justify-content: space-between; padding: 23px 0 38px; color: #5b7480; font-size: 9px; letter-spacing: .14em; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; }

@media (max-width: 850px) {
  .site-header, .shell, .site-footer { width: min(100% - 32px, 620px); }
  .nav-links { display: none; }
  .hero { padding: 62px 0 45px; }
  .hero::after { top: 50px; right: -10px; font-size: 120px; }
  .metric-strip { grid-template-columns: repeat(2, 1fr); }
  .layout-grid { display: block; }
  .panel { margin-top: 14px; }
  .transition-result { align-items: stretch; flex-direction: column; }
  .guidance-panel { display: block; margin-top: 14px; padding: 21px 17px; }
  .guidance-grid { grid-template-columns: 1fr; gap: 16px; margin-top: 24px; }
  .guidance-rule { margin-top: 22px; }
}

@media (max-width: 520px) {
  .site-header { min-height: 68px; }
  .header-state { display: none; }
  .hero h1 { font-size: 57px; }
  .hero-copy { font-size: 15px; }
  .hero-actions, .input-row, .activity-form { align-items: stretch; flex-direction: column; }
  .hero-note { font-size: 9px; }
  .hero-proof div { padding-right: 9px; }
  .hero-proof div + div { padding-left: 9px; }
  .panel { padding: 21px 17px; }
  .metric-card { min-height: 112px; padding: 16px; }
  .metric-value { font-size: 29px; }
  .telemetry-row { grid-template-columns: 78px 1fr 60px; gap: 8px; font-size: 10px; }
  .panel-heading { margin-bottom: 19px; }
  .panel-actions { align-items: end; flex-direction: column-reverse; gap: 7px; }
  .explanation-grid { grid-template-columns: 1fr; gap: 11px; }
  .site-footer { align-items: start; flex-direction: column; gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}