/* ==========================================================================
   NLTP v1.6.0 Dedicated Flagship Protocol Page & Live Browser Wire Lab
   Anodized Graphite + Crisp White + Brushed 24k Gold
   100% Locked-Boundary Layout: Zero scale, zero translate, zero reflow on click
   ========================================================================== */

:root {
  --bg: #08090b;
  --bg-elev: #0d0f14;
  --bg-panel: #10131a;
  --bg-inset: #090b0f;
  --bg-glass: rgba(11, 13, 18, 0.86);
  --border: rgba(255, 255, 255, 0.10);
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-gold: rgba(228, 180, 92, 0.44);
  --text: #f8fafc;
  --text-soft: #d5d9e2;
  --text-muted: #8e95a4;

  --gold: #e4b45c;
  --gold-strong: #d4a24c;
  --gold-soft: #f5dda4;
  --ok: #5fb490;
  --drop: #d87a68;
  --reflex: #e2e8f0;
  --slate: #94a3b8;

  --radius-lg: 14px;
  --radius-md: 10px;
  --radius-sm: 7px;
  --shadow-panel: 0 20px 48px rgba(0, 0, 0, 0.56);
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
  background:
    radial-gradient(960px 440px at 50% -80px, rgba(228, 180, 92, 0.11), transparent 72%),
    var(--bg);
  color: var(--text);
  line-height: 1.56;
  overflow-x: clip;
}

code, pre, .mono {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

code {
  font-size: 0.86em;
  padding: 0.12em 0.4em;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.09);
  color: var(--gold-soft);
}

pre code {
  background: none;
  border: 0;
  padding: 0;
  color: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

button, select, input {
  font-family: inherit;
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.container {
  width: min(1220px, calc(100% - 40px));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  left: -9999px;
  top: 12px;
  z-index: 9999;
  padding: 10px 16px;
  background: var(--gold);
  color: #090a0c;
  font-weight: 700;
  border-radius: 8px;
}
.skip-link:focus { left: 12px; }

.icon {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  flex-shrink: 0;
}

.icon-fill {
  width: 14px;
  height: 14px;
  fill: currentColor;
  flex-shrink: 0;
}

/* ==========================================================================
   FIXED LOCKED-BOUNDARY NAVIGATION
   ========================================================================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 64px;
  background: var(--bg-glass);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  flex-shrink: 0;
}

.brand-mark {
  width: 26px;
  height: 26px;
}

.brand-word {
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: var(--text);
}
.brand-word span {
  color: var(--gold);
}

.brand-tag {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.70rem;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 999px;
  background: rgba(228, 180, 92, 0.13);
  border: 1px solid rgba(228, 180, 92, 0.36);
  color: var(--gold);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--text-soft);
  border: 1px solid transparent;
  white-space: nowrap;
  transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

.nav-links a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* ==========================================================================
   BUTTONS (ZERO TRANSFORM / ZERO DIMENSION SHIFT ON CLICK)
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 16px;
  border-radius: var(--radius-sm);
  font-size: 0.86rem;
  font-weight: 600;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  color: var(--text);
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn-sm {
  height: 34px;
  padding: 0 12px;
  font-size: 0.80rem;
}

.btn-primary {
  background: var(--gold);
  border-color: var(--gold);
  color: #090b0e;
  font-weight: 700;
}
.btn-primary:hover,
.btn-primary:active {
  background: #ecc16f;
  border-color: #ecc16f;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.14);
  color: var(--text);
}
.btn-secondary:hover,
.btn-secondary:active {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(228, 180, 92, 0.45);
}

.btn-reflex {
  background: rgba(228, 180, 92, 0.12);
  border-color: rgba(228, 180, 92, 0.46);
  color: var(--gold-soft);
}
.btn-reflex:hover,
.btn-reflex:active {
  background: rgba(228, 180, 92, 0.20);
  border-color: var(--gold);
}

.btn-danger {
  background: rgba(216, 122, 104, 0.11);
  border-color: rgba(216, 122, 104, 0.40);
  color: #f3b5a8;
}
.btn-danger:hover,
.btn-danger:active {
  background: rgba(216, 122, 104, 0.20);
  border-color: var(--drop);
}

.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  display: inline-grid;
  place-items: center;
  cursor: pointer;
}

.icon-btn.menu-btn {
  display: none;
}
.menu-btn .icon-close { display: none; }
.menu-btn[aria-expanded="true"] .icon-menu { display: none; }
.menu-btn[aria-expanded="true"] .icon-close { display: block; }

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
  padding: 58px 0 46px;
  border-bottom: 1px solid var(--border-subtle);
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(228, 180, 92, 0.09);
  border: 1px solid rgba(228, 180, 92, 0.34);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--gold);
  margin-bottom: 18px;
}

.eyebrow-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 10px var(--gold);
}

.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(2.05rem, 4.1vw, 3.35rem);
  line-height: 1.09;
  letter-spacing: -0.03em;
  font-weight: 800;
  max-width: 960px;
}

.hero h1 span {
  color: var(--gold);
}

.hero-lead {
  margin: 0 0 26px;
  max-width: 850px;
  font-size: 1.04rem;
  color: var(--text-soft);
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 34px;
}

.pip-box {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 6px 0 14px;
  gap: 10px;
  border-radius: var(--radius-sm);
  background: var(--bg-inset);
  border: 1px solid rgba(228, 180, 92, 0.34);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.82rem;
  color: var(--gold-soft);
}

.pip-copy-btn {
  height: 28px;
  min-width: 66px;
  padding: 0 10px;
  border-radius: 5px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  font-family: "Inter", sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
}
.pip-copy-btn:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.metric-card {
  padding: 18px 18px 16px;
  border-radius: var(--radius-md);
  background: var(--bg-panel);
  border: 1px solid var(--border);
}

.metric-kicker {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.70rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gold);
  margin-bottom: 6px;
}

.metric-val {
  font-size: 1.48rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 5px;
}

.metric-sub {
  font-size: 0.80rem;
  color: var(--text-muted);
  line-height: 1.42;
}

/* ==========================================================================
   SECTIONS & HEADINGS
   ========================================================================== */
.section {
  padding: 64px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.section-head {
  max-width: 820px;
  margin-bottom: 28px;
}

.section-tag {
  display: inline-block;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.73rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gold);
  margin-bottom: 8px;
}

.section-head h2 {
  margin: 0 0 10px;
  font-size: clamp(1.55rem, 2.7vw, 2.15rem);
  letter-spacing: -0.025em;
  line-height: 1.18;
}

.section-head p {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.96rem;
}

/* ==========================================================================
   LIVE IN-BROWSER NLTP v1.6.0 WIRE PROTOCOL LAB
   ========================================================================== */
.lab-shell {
  border-radius: var(--radius-lg);
  background: var(--bg-panel);
  border: 1px solid rgba(228, 180, 92, 0.28);
  box-shadow: var(--shadow-panel);
  overflow: hidden;
}

.lab-topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 13px 18px;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
}

.lab-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.76rem;
  color: var(--text-soft);
}

.status-led {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 9px var(--ok);
}

.preset-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.preset-btn {
  height: 30px;
  padding: 0 11px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-soft);
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
}
.preset-btn:hover {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.22);
}
.preset-btn.active {
  background: rgba(228, 180, 92, 0.16);
  border-color: var(--gold);
  color: var(--gold-soft);
}

.lab-grid {
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
}

.lab-controls {
  padding: 18px;
  border-right: 1px solid var(--border);
  background: rgba(8, 9, 12, 0.45);
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.ctrl-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ctrl-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.80rem;
  font-weight: 600;
  color: var(--text-soft);
}

.ctrl-val {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  color: var(--gold);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--gold);
  cursor: pointer;
}

.ctrl-select {
  height: 36px;
  padding: 0 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-inset);
  color: var(--text);
  font-size: 0.81rem;
}

.toggle-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.toggle-chip {
  display: flex;
  align-items: center;
  gap: 7px;
  height: 36px;
  padding: 0 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-inset);
  font-size: 0.77rem;
  font-weight: 600;
  color: var(--text-soft);
  cursor: pointer;
  user-select: none;
}
.toggle-chip input {
  accent-color: var(--gold);
  margin: 0;
}

.lab-btn-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 2px;
}

.lab-btn-row2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.lab-stage {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.canvas-wrap {
  position: relative;
  height: 236px;
  border-radius: var(--radius-md);
  background: #07080b;
  border: 1px solid var(--border);
  overflow: hidden;
}

#wire-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.lab-readouts {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.readout-box {
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--bg-inset);
  border: 1px solid var(--border);
}

.readout-k {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.67rem;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 3px;
}

.readout-v {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.compare-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.cmp-card {
  padding: 10px 12px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border);
  font-size: 0.78rem;
}
.cmp-card strong {
  display: block;
  font-size: 0.80rem;
  margin-bottom: 2px;
}
.cmp-card.nltp-win {
  border-color: rgba(228, 180, 92, 0.42);
  background: rgba(228, 180, 92, 0.06);
}

.wire-inspector {
  padding: 11px 14px;
  border-radius: 8px;
  background: #06070a;
  border: 1px solid var(--border);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.74rem;
  color: var(--text-soft);
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.wire-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  overflow: hidden;
}
.wire-row span:last-child {
  color: var(--gold-soft);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ==========================================================================
   ARCHITECTURE CARDS & WIRE BYTE DIAGRAM
   ========================================================================== */
.wire-diagram {
  padding: 18px;
  border-radius: var(--radius-md);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  margin-bottom: 20px;
}

.wire-diagram-title {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.76rem;
  color: var(--gold);
  margin-bottom: 12px;
}

.byte-strip {
  display: grid;
  grid-template-columns: 1.1fr 1.1fr 1fr 1.4fr 1.8fr 1.3fr 2.4fr 1.8fr;
  gap: 6px;
}

.byte-cell {
  padding: 10px 8px;
  border-radius: 6px;
  background: var(--bg-inset);
  border: 1px solid var(--border);
  text-align: center;
}
.byte-cell.gold {
  border-color: rgba(228, 180, 92, 0.48);
  background: rgba(228, 180, 92, 0.08);
}
.byte-name {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text);
}
.byte-len {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  color: var(--text-muted);
  margin-top: 3px;
}

.arch-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.arch-card {
  padding: 20px;
  border-radius: var(--radius-md);
  background: var(--bg-panel);
  border: 1px solid var(--border);
}

.arch-num {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  color: var(--gold);
  margin-bottom: 6px;
}

.arch-card h3 {
  margin: 0 0 8px;
  font-size: 1.02rem;
}

.arch-card p {
  margin: 0;
  font-size: 0.86rem;
  color: var(--text-soft);
}

/* ==========================================================================
   TABS (BENCHMARKS & 5-SDK QUICKSTART — ZERO DIMENSION SHIFT)
   ========================================================================== */
.tab-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.tab-btn {
  height: 36px;
  padding: 0 14px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  color: var(--text-soft);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}
.tab-btn:hover {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.22);
}
.tab-btn.active {
  background: rgba(228, 180, 92, 0.15);
  border-color: var(--gold);
  color: var(--gold-soft);
}

.tab-panel[hidden] {
  display: none;
}

.table-wrap {
  border-radius: var(--radius-md);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
}

th, td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

th {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  background: var(--bg-elev);
}

tr:last-child td {
  border-bottom: 0;
}

td.hl {
  color: var(--gold-soft);
  font-weight: 600;
}
td.bad {
  color: var(--drop);
}
td.good {
  color: var(--ok);
  font-weight: 600;
}

.table-note {
  margin-top: 10px;
  font-size: 0.79rem;
  color: var(--text-muted);
}

/* ==========================================================================
   CODE BLOCKS
   ========================================================================== */
.code-card {
  border-radius: var(--radius-md);
  background: #07090d;
  border: 1px solid var(--border);
  overflow: hidden;
}

.code-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.76rem;
  color: var(--text-muted);
}

.code-card pre {
  margin: 0;
  padding: 18px;
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.58;
  color: #e5e9f0;
}

/* ==========================================================================
   HONEST ENGINEERING BOUNDARIES
   ========================================================================== */
.bounds-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.bounds-card {
  padding: 22px;
  border-radius: var(--radius-md);
  background: var(--bg-panel);
  border: 1px solid var(--border);
}
.bounds-card.use-nltp {
  border-color: rgba(228, 180, 92, 0.38);
}

.bounds-card h3 {
  margin: 0 0 12px;
  font-size: 1.04rem;
}

.bounds-card ul {
  margin: 0;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 9px;
  font-size: 0.87rem;
  color: var(--text-soft);
}

.audit-banner {
  margin-top: 18px;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  background: rgba(228, 180, 92, 0.06);
  border: 1px solid rgba(228, 180, 92, 0.28);
  font-size: 0.84rem;
  color: var(--text-soft);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  padding: 36px 0 48px;
  color: var(--text-muted);
  font-size: 0.83rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}
.footer-links a:hover {
  color: var(--gold);
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS
   ========================================================================== */
@media (max-width: 1040px) {
  .hero-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .lab-grid {
    grid-template-columns: 1fr;
  }
  .lab-controls {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }
  .arch-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .byte-strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .icon-btn.menu-btn {
    display: inline-grid;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 20px 16px;
    background: #0b0d12;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open {
    display: flex;
  }
  .lab-readouts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .compare-strip,
  .bounds-grid,
  .arch-grid {
    grid-template-columns: 1fr;
  }
  .hide-sm {
    display: none;
  }
}