/* ==========================================================================
   polyrouter.app — design system
   Tokens and shared component classes ported verbatim from the Claude Design
   project "Polyrouter Landing Page" (_ds_bundle.css), then extended with the
   responsive layout utilities a production site needs.
   ========================================================================== */

/* ---- fonts (self-hosted Geist / Geist Mono, latin + latin-ext) ---------- */

@font-face {
  font-family: 'Geist';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('/fonts/geist-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308,
    U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113,
    U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Geist';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('/fonts/geist-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304,
    U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Geist Mono';
  font-style: normal;
  font-weight: 400 500;
  font-display: swap;
  src: url('/fonts/geist-mono-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308,
    U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113,
    U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Geist Mono';
  font-style: normal;
  font-weight: 400 500;
  font-display: swap;
  src: url('/fonts/geist-mono-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304,
    U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ---- tokens ------------------------------------------------------------- */

* {
  box-sizing: border-box;
}

:root {
  --accent: #4f5dff;
  --bg: #fafafa;
  --panel: #ffffff;
  --border: #ececea;
  --border2: #f1f1ef;
  --hover: #f4f4f2;
  --chip: #f1f1ef;
  --text: #17181a;
  --text2: #55575e;
  --text3: #6a6c73;
  --faint: #b4b6bc;
  --green: #3bb273;
  /* Green as TEXT needs 4.5:1; the fill green is only 2.7:1 on white, so small
     "OK"/"Live"/"free" labels get a darkened variant. Dots, bars and chip fills keep
     `--green` — their appearance is unchanged. */
  --green-text: #22794c;
  --green-bg: #e9f6ef;
  --amber: #c8901a;
  --amber-bg: #fbf3dc;
  --red: #e5484d;
  --red-bg: #fdecec;
  --accent-bg: color-mix(in oklab, var(--accent) 9%, var(--panel));
  --accent-deep: color-mix(in oklab, var(--accent) 78%, var(--text) 22%);
  /* Flat-borders lock: shadows are whispers <= 8% alpha, themed OFF in dark. */
  --shadow: 0 1px 3px rgba(20, 20, 25, 0.05);
  --shadow-pop: 0 18px 50px rgba(10, 10, 14, 0.08);
  --shadow-drawer: -12px 0 32px rgba(10, 10, 14, 0.08);
  --shadow-toast: 0 8px 24px rgba(10, 10, 14, 0.08);
  --shadow-knob: 0 1px 2px rgba(10, 10, 14, 0.08);
}

[data-theme='dark'] {
  --bg: #0e0f12;
  --panel: #16171b;
  --border: #26272d;
  --border2: #1f2025;
  --hover: #1c1d22;
  --chip: #22232a;
  --text: #f0f1f4;
  --text2: #a6a8b0;
  --text3: #898b93;
  --faint: #4e5058;
  --green: #46c482;
  /* Dark mode already clears 4.5:1 (8.1:1 on --panel), so text matches the fill. */
  --green-text: #46c482;
  --green-bg: #12291d;
  --amber: #e7b03c;
  --amber-bg: #2e2712;
  --red: #f2555a;
  --red-bg: #391a1c;
  --shadow: none;
  --shadow-pop: none;
  --shadow-drawer: none;
  --shadow-toast: none;
  --shadow-knob: none;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Geist', sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  color: var(--accent-deep);
  text-decoration: underline;
}

input,
select,
button,
textarea {
  font-family: inherit;
}

/* Actions are real <button>s; strip the UA chrome so the component classes
   render on <button> exactly as they did on div/span. */
button {
  appearance: none;
  -webkit-appearance: none;
  font: inherit;
  line-height: inherit;
  color: inherit;
  text-align: inherit;
  background: none;
  border: none;
  padding: 0;
  margin: 0;
  cursor: pointer;
}
button::-moz-focus-inner {
  border: 0;
  padding: 0;
}
button:disabled {
  opacity: 0.6;
  cursor: default;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

input:focus,
select:focus {
  border-color: var(--accent) !important;
}

summary {
  list-style: none;
}
summary::-webkit-details-marker {
  display: none;
}
summary::marker {
  content: '';
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.3;
  }
}
@keyframes slidein {
  from {
    transform: translateX(24px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}
@keyframes fadein {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---- shared component classes ------------------------------------------ */

.mono {
  font-family: 'Geist Mono', monospace;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
}
.card {
  padding: 16px 18px;
}

.stat-label {
  font: 400 12px 'Geist', sans-serif;
  color: var(--text3);
  margin-bottom: 8px;
}
.stat-value {
  font: 600 26px 'Geist', sans-serif;
  letter-spacing: -0.03em;
}
.stat-sub {
  font: 400 11.5px 'Geist', sans-serif;
  color: var(--text3);
  margin-top: 5px;
}

.section-title {
  font: 500 13px 'Geist', sans-serif;
}
.upper-label {
  font: 500 11px 'Geist', sans-serif;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.btn-primary {
  padding: 7px 14px;
  background: var(--accent);
  color: #fff;
  border-radius: 7px;
  font: 500 12.5px 'Geist', sans-serif;
  cursor: pointer;
  user-select: none;
}
.btn-primary:hover {
  background: var(--accent-deep);
  color: #fff;
  text-decoration: none;
}

.btn-ghost {
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font: 500 11.5px 'Geist', sans-serif;
  cursor: pointer;
  color: var(--text2);
  user-select: none;
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

.btn-cancel {
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: 7px;
  font: 500 12.5px 'Geist', sans-serif;
  cursor: pointer;
  color: var(--text2);
  user-select: none;
}
.btn-cancel:hover {
  background: var(--hover);
  color: var(--text2);
  text-decoration: none;
}

/* Buttons/links styled as buttons align their contents like the design. */
.btn-primary,
.btn-cancel,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.chip {
  display: inline-block;
  padding: 2px 8px;
  background: var(--chip);
  border-radius: 10px;
  font-size: 11px;
  color: var(--text2);
}
a.chip:hover {
  color: var(--text);
  text-decoration: none;
}

.link-accent {
  color: var(--accent);
  cursor: pointer;
}
.link-accent:hover {
  color: var(--accent-deep);
}

.section-title {
  color: var(--text);
}

.nav-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 10px;
  border-radius: 6px;
  cursor: pointer;
}
.nav-item:hover {
  background: var(--hover);
}

.theme-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font: 400 12px 'Geist', sans-serif;
  color: var(--text2);
  padding: 4px 0;
}
.theme-toggle:hover {
  color: var(--text);
}

.endpoint-chip {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 5px 11px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 7px;
  font: 400 11.5px 'Geist Mono', monospace;
  color: var(--text2);
  cursor: pointer;
}
.endpoint-chip:hover {
  border-color: var(--accent);
  color: var(--text);
}

.row-hover:hover {
  background: var(--hover);
}

.table-head {
  padding: 8px 18px;
  border-bottom: 1px solid var(--border2);
  font: 500 10.5px 'Geist', sans-serif;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: grid;
  gap: 0 14px;
}

.req-row {
  display: grid;
  width: 100%;
  gap: 0 14px;
  padding: 9px 18px;
  border-bottom: 1px solid var(--border2);
  font: 400 12px 'Geist', sans-serif;
  color: var(--text2);
  align-items: center;
}

.bar-track {
  height: 5px;
  background: var(--border2);
  border-radius: 3px;
}
.bar-fill {
  height: 100%;
  border-radius: 3px;
}

.input,
.select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 8px 11px;
  font: 400 12.5px 'Geist', sans-serif;
  color: var(--text);
}
.input::placeholder {
  color: var(--text3);
}

.field-label {
  font: 500 11.5px 'Geist', sans-serif;
  color: var(--text2);
  margin-bottom: 5px;
}

.snippet-box {
  background: var(--bg);
  border: 1px solid var(--border2);
  border-radius: 8px;
  padding: 13px 15px;
  font: 400 11.5px 'Geist Mono', monospace;
  color: var(--text2);
  line-height: 1.75;
  white-space: pre-wrap;
  overflow-x: auto;
}

.chain-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 18px;
  border-bottom: 1px solid var(--border2);
}

.pos-badge {
  flex: none;
  width: 64px;
  padding: 2px 0;
  text-align: center;
  border-radius: 9px;
  font: 500 10.5px 'Geist', sans-serif;
}

/* ---- landing helpers (were per-page <style> in the design) -------------- */

.pr-navlink {
  color: var(--text2);
  font: 500 13.5px 'Geist', sans-serif;
  text-decoration: none;
  padding: 6px 2px;
  transition: color 0.14s ease-out;
}
.pr-navlink:hover {
  color: var(--text);
  text-decoration: none;
}
.pr-navlink.active {
  color: var(--text);
  font-weight: 600;
}

.pr-foot {
  color: var(--text3);
  font: 400 13px 'Geist', sans-serif;
  text-decoration: none;
}
.pr-foot:hover {
  color: var(--text);
  text-decoration: none;
}

.pr-lift {
  transition: transform 0.16s ease-out, border-color 0.16s ease-out;
}
.pr-lift:hover {
  transform: translateY(-3px);
  border-color: color-mix(in oklab, var(--accent) 35%, var(--border));
}

.pr-toc {
  display: block;
  color: var(--text3);
  font: 400 13px 'Geist', sans-serif;
  text-decoration: none;
  padding: 6px 0;
  border-left: 2px solid transparent;
  padding-left: 12px;
  transition: color 0.14s ease-out, border-color 0.14s ease-out;
}
.pr-toc:hover {
  color: var(--text);
  border-left-color: var(--accent);
  text-decoration: none;
}
.pr-toc.active {
  color: var(--text);
  border-left-color: var(--accent);
}

/* ---- layout / responsive utilities (production additions) --------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 15px 40px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in oklab, var(--panel) 90%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex: none;
}
.brand:hover {
  text-decoration: none;
}
.brand-name {
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.02em;
  color: var(--text);
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}
.site-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}
.theme-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 6px 11px;
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text2);
  font: 500 12.5px 'Geist', sans-serif;
  background: var(--panel);
  cursor: pointer;
  white-space: nowrap;
}
.theme-btn:hover {
  color: var(--text);
  border-color: color-mix(in oklab, var(--accent) 30%, var(--border));
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 34px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--panel);
  color: var(--text2);
}
.nav-toggle:hover {
  color: var(--text);
}

.mobile-menu {
  display: none;
}

.section {
  padding: 70px 40px;
  border-top: 1px solid var(--border);
}
.section.alt {
  background: var(--panel);
}
.section.flush {
  border-top: none;
}
.section.hero {
  padding: 82px 40px 34px;
  border-top: none;
  text-align: center;
}

.cols {
  display: grid;
  gap: 14px;
}
.cols-2 {
  grid-template-columns: repeat(2, 1fr);
}
.cols-3 {
  grid-template-columns: repeat(3, 1fr);
}
.cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

.h-hero {
  margin: 0 auto;
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.02;
  color: var(--text);
  font-size: clamp(38px, 8vw, 64px);
}
.h-sec {
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text);
  font-size: clamp(28px, 5vw, 40px);
}

/* browser-frame chrome for the dashboard mockups */
.frame {
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  background: var(--panel);
  box-shadow: var(--shadow-pop);
}
.frame-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.frame-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--border);
  flex: none;
}
.frame-url {
  font: 400 11.5px 'Geist Mono', monospace;
  color: var(--text3);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 3px 14px;
}

/* docs two-column layout */
.docs-grid {
  max-width: 1160px;
  margin: 0 auto;
  padding: 56px 40px 40px;
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: 52px;
  align-items: start;
}
/* Let both grid tracks shrink below their content's intrinsic width so wide
   mocks/tables scroll inside their own overflow-x container instead of
   stretching the column (and the sticky sidebar) past the viewport. */
.docs-grid > * {
  min-width: 0;
}
.docs-aside {
  position: sticky;
  top: 96px;
  align-self: start;
}

/* docs sidebar — cross-page navigation (sits above the on-this-page spy) */
.docs-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 22px;
}
.docs-nav a {
  display: block;
  padding: 6px 12px;
  border-radius: 7px;
  color: var(--text2);
  font: 500 13px 'Geist', sans-serif;
  text-decoration: none;
  transition: color 0.14s ease-out, background 0.14s ease-out;
}
.docs-nav a:hover {
  background: var(--hover);
  color: var(--text);
  text-decoration: none;
}
.docs-nav a.active {
  background: var(--accent-bg);
  color: var(--accent-deep);
}

/* wide tables scroll instead of forcing the page to scroll */
.scroll-x {
  overflow-x: auto;
}

.grad-hero {
  background-color: var(--bg);
  background-image: radial-gradient(
    circle at 50% 0%,
    color-mix(in oklab, var(--accent) 8%, transparent),
    transparent 60%
  );
}

/* ---- dashboard mockups -------------------------------------------------- */

.dash {
  display: grid;
  grid-template-columns: 212px 1fr;
  background: var(--panel);
}
.dash-side {
  border-right: 1px solid var(--border);
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--panel);
}
.dash-main {
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.dnav {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 10px;
  border-radius: 7px;
  font: 500 12.5px 'Geist', sans-serif;
  color: var(--text2);
  cursor: default;
}
.dnav:hover {
  background: var(--hover);
}
.dnav.active {
  background: var(--accent-bg);
  color: var(--accent-deep);
}
.dnav svg {
  flex: none;
}

.lyr {
  display: inline-flex;
  align-items: center;
  padding: 1px 8px;
  border-radius: 999px;
  font: 500 10.5px 'Geist Mono', monospace;
  border: 1px solid transparent;
  white-space: nowrap;
}
/* Decision-layer chips mirror the dashboard's CHIP map exactly
   (packages/frontend/src/components/RequestTable.tsx): only `explicit` is
   accent-tinted and only `cascade` is amber; every other layer is neutral.
   The router emits exactly these six values — nothing else is a layer. */
.lyr-explicit {
  background: var(--accent-bg);
  color: var(--accent-deep);
  border-color: color-mix(in oklab, var(--accent) 30%, transparent);
}
.lyr-header,
.lyr-default,
.lyr-structural,
.lyr-semantic {
  background: var(--chip);
  color: var(--text2);
}
.lyr-cascade {
  background: var(--amber-bg);
  color: var(--amber);
  border-color: color-mix(in oklab, var(--amber) 30%, transparent);
}

/* Generic documentation chips — NOT decision layers. Kept visually distinct so a
   docs annotation ("ok", "matched", "optional") can never be misread as a layer. */
.chip-pos {
  background: var(--green-bg);
  color: var(--green-text);
}
.chip-warn {
  background: var(--amber-bg);
  color: var(--amber);
}

.sdot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  display: inline-block;
  flex: none;
}

.kpi-value {
  font: 600 25px 'Geist', sans-serif;
  letter-spacing: -0.03em;
  color: var(--text);
}

.dash-kpis {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.dash-split {
  display: grid;
  grid-template-columns: 1.55fr 1fr;
}
.req-split {
  display: grid;
  grid-template-columns: 1fr 320px;
  background: var(--panel);
}
.dash-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
@media (max-width: 820px) {
  .dash-kpis {
    grid-template-columns: repeat(2, 1fr);
  }
  .dash-split {
    grid-template-columns: 1fr;
  }
  .req-split {
    grid-template-columns: 1fr;
  }
  .dash-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .dash {
    grid-template-columns: 1fr;
  }
  .dash-side {
    display: none;
  }
}

/* ---- responsive --------------------------------------------------------- */

@media (max-width: 900px) {
  .cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .cols-3 {
    grid-template-columns: 1fr;
  }
  .docs-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
    padding: 40px 22px 32px;
  }
  .docs-aside {
    position: static;
    top: auto;
  }
}

@media (max-width: 860px) {
  .site-nav {
    display: none;
  }
  .site-actions .desktop-only {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .site-header {
    padding: 13px 20px;
  }
  .mobile-menu.open {
    display: flex;
    flex-direction: column;
    gap: 4px;
    position: sticky;
    top: 61px;
    z-index: 49;
    padding: 14px 20px 18px;
    border-bottom: 1px solid var(--border);
    background: color-mix(in oklab, var(--panel) 96%, transparent);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    animation: fadein 0.16s ease-out;
  }
  .mobile-menu.open a {
    padding: 10px 6px;
    border-radius: 7px;
    color: var(--text2);
    font: 500 15px 'Geist', sans-serif;
  }
  .mobile-menu.open a:hover {
    background: var(--hover);
    color: var(--text);
    text-decoration: none;
  }
  .mobile-menu .mm-actions {
    display: flex;
    gap: 10px;
    margin-top: 8px;
    padding-top: 12px;
    border-top: 1px solid var(--border2);
  }
  .mobile-menu .mm-actions a {
    flex: 1;
    justify-content: center;
  }
}

@media (max-width: 760px) {
  .section {
    padding: 52px 22px;
  }
  .section.hero {
    padding: 58px 22px 26px;
  }
  .cols-2 {
    grid-template-columns: 1fr;
  }
  .ops-grid {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 560px) {
  .cols-4 {
    grid-template-columns: 1fr;
  }
}

/* Reduced-motion guard: collapse ALL motion while animated states stay
   statically visible. 0.01ms keeps animationend/transitionend semantics. */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-delay: 0ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
    scroll-behavior: auto !important;
  }
}