/* ============================================================
   RuRouter.ai — Shared Design System
   Dark premium developer SaaS
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Onest:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
  /* Surfaces */
  --bg:        #070a10;
  --bg-1:      #0a0e16;
  --bg-2:      #0d121d;
  --bg-3:      #111826;
  --bg-4:      #161f31;
  --bg-hover:  #18223a;

  /* Borders */
  --border:        rgba(255, 255, 255, 0.07);
  --border-1:      rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.16);

  /* Text */
  --text:       #eaf0fb;
  --text-1:     #b8c2d6;
  --text-muted: #8995ad;
  --text-dim:   #5a6680;
  --text-faint: #3c4660;

  /* Accents */
  --cyan:      #2bd4ee;
  --cyan-2:    #18b9d6;
  --cyan-dim:  rgba(43, 212, 238, 0.12);
  --cyan-glow: rgba(43, 212, 238, 0.35);
  --violet:    #9b7bff;
  --violet-2:  #7c5cf0;
  --violet-dim:rgba(155, 123, 255, 0.13);

  --green:  #3ddc97;
  --green-dim: rgba(61, 220, 151, 0.13);
  --amber:  #f5b544;
  --amber-dim: rgba(245, 181, 68, 0.13);
  --red:    #ff6b6b;
  --red-dim: rgba(255, 107, 107, 0.13);
  --blue:   #5b9bff;

  --grad: linear-gradient(116deg, var(--cyan) 0%, var(--violet) 100%);
  --grad-soft: linear-gradient(116deg, rgba(43,212,238,0.14), rgba(155,123,255,0.14));

  /* Type */
  --font: 'Onest', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* Radii */
  --r-xs: 6px;
  --r-sm: 9px;
  --r:    13px;
  --r-lg: 18px;
  --r-xl: 26px;

  /* Shadow */
  --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
  --shadow:    0 8px 30px rgba(0,0,0,.35);
  --shadow-lg: 0 24px 70px -12px rgba(0,0,0,.6);

  --maxw: 1240px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  letter-spacing: -0.01em;
}

::selection { background: var(--cyan-glow); color: #fff; }

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

img { display: block; max-width: 100%; }

/* Scrollbar */
::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #1c2638; border-radius: 8px; border: 3px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: #283449; }

/* ---------- Typography helpers ---------- */
h1,h2,h3,h4 { font-weight: 600; letter-spacing: -0.025em; line-height: 1.1; color: var(--text); }
.mono { font-family: var(--mono); }
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
}
.muted { color: var(--text-muted); }
.dim { color: var(--text-dim); }
.gradient-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ---------- Layout ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.section { padding: 96px 0; }
.section-sm { padding: 60px 0; }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font);
  font-size: 14px; font-weight: 500;
  padding: 10px 18px;
  border-radius: var(--r-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .16s ease;
  white-space: nowrap;
  letter-spacing: -0.01em;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary {
  background: var(--cyan);
  color: #04141a;
  font-weight: 600;
  box-shadow: 0 0 0 1px rgba(43,212,238,.4), 0 8px 24px -6px var(--cyan-glow);
}
.btn-primary:hover { background: #4ddffa; box-shadow: 0 0 0 1px rgba(43,212,238,.6), 0 10px 30px -6px var(--cyan-glow); transform: translateY(-1px); }
.btn-grad {
  background: var(--grad); color: #07111a; font-weight: 600;
  box-shadow: 0 8px 26px -8px var(--violet-2);
}
.btn-grad:hover { filter: brightness(1.08); transform: translateY(-1px); }
.btn-ghost {
  background: var(--bg-3);
  color: var(--text);
  border-color: var(--border-1);
}
.btn-ghost:hover { background: var(--bg-4); border-color: var(--border-strong); }
.btn-outline {
  background: transparent; color: var(--text-1); border-color: var(--border-1);
}
.btn-outline:hover { background: var(--bg-2); color: var(--text); border-color: var(--border-strong); }
.btn-sm { padding: 6px 12px; font-size: 13px; border-radius: var(--r-xs); }
.btn-lg { padding: 13px 24px; font-size: 15px; }
.btn-icon { padding: 8px; }
.btn-block { width: 100%; justify-content: center; }
.btn-danger { background: var(--red-dim); color: var(--red); border-color: rgba(255,107,107,.25); }
.btn-danger:hover { background: rgba(255,107,107,.22); }

/* ============================================================
   Cards
   ============================================================ */
.card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 22px;
}
.card-hover { transition: all .18s ease; }
.card-hover:hover { border-color: var(--border-strong); background: var(--bg-3); transform: translateY(-2px); }

/* ============================================================
   Badges / chips / tags
   ============================================================ */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 12px; font-weight: 500;
  padding: 3px 9px; border-radius: 100px;
  border: 1px solid var(--border-1);
  background: var(--bg-3);
  color: var(--text-1);
  letter-spacing: 0;
}
.badge .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge-cyan  { color: var(--cyan);   background: var(--cyan-dim);   border-color: rgba(43,212,238,.22); }
.badge-violet{ color: var(--violet); background: var(--violet-dim); border-color: rgba(155,123,255,.22); }
.badge-green { color: var(--green);  background: var(--green-dim);  border-color: rgba(61,220,151,.22); }
.badge-amber { color: var(--amber);  background: var(--amber-dim);  border-color: rgba(245,181,68,.22); }
.badge-red   { color: var(--red);    background: var(--red-dim);    border-color: rgba(255,107,107,.22); }

.tag {
  font-family: var(--mono);
  font-size: 11px;
  padding: 2px 7px;
  border-radius: var(--r-xs);
  background: var(--bg-3);
  border: 1px solid var(--border);
  color: var(--text-muted);
  letter-spacing: 0;
}

/* ============================================================
   Code blocks
   ============================================================ */
.code {
  background: #06090f;
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
  font-family: var(--mono);
}
.code-head {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-1);
}
.code-dots { display: flex; gap: 6px; }
.code-dots i { width: 11px; height: 11px; border-radius: 50%; display: block; }
.code-dots i:nth-child(1){ background:#ff5f56; } .code-dots i:nth-child(2){ background:#ffbd2e; } .code-dots i:nth-child(3){ background:#27c93f; }
.code-file { font-family: var(--mono); font-size: 12px; color: var(--text-muted); margin-left: 4px; }
.code-tabs { display: flex; gap: 2px; margin-left: 8px; }
.code-tab {
  font-family: var(--mono); font-size: 12px; padding: 5px 11px; border-radius: var(--r-xs);
  color: var(--text-muted); cursor: pointer; transition: all .14s; border: 1px solid transparent;
}
.code-tab:hover { color: var(--text-1); }
.code-tab.active { color: var(--cyan); background: var(--cyan-dim); border-color: rgba(43,212,238,.2); }
.code-body { padding: 16px 18px; font-size: 13px; line-height: 1.7; overflow-x: auto; }
.code-body pre { font-family: var(--mono); white-space: pre; color: var(--text-1); }
.code-copy {
  margin-left: auto; display: inline-flex; align-items: center; gap: 5px;
  font-family: var(--mono); font-size: 11px; color: var(--text-muted);
  background: var(--bg-3); border: 1px solid var(--border); border-radius: var(--r-xs);
  padding: 4px 9px; cursor: pointer; transition: all .14s;
}
.code-copy:hover { color: var(--text); border-color: var(--border-strong); }
.code-copy.copied { color: var(--green); border-color: rgba(61,220,151,.3); }

/* token colors */
.tk { color: var(--violet); }          /* keyword */
.ts { color: var(--green); }           /* string */
.tf { color: var(--cyan); }            /* function/name */
.tc { color: var(--text-dim); font-style: italic; } /* comment */
.tn { color: var(--amber); }           /* number */
.tp { color: var(--text); }            /* punctuation/plain */

/* ============================================================
   Tables
   ============================================================ */
.tbl { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.tbl thead th {
  text-align: left; font-weight: 500; font-size: 12px;
  color: var(--text-muted); padding: 11px 14px;
  border-bottom: 1px solid var(--border); white-space: nowrap;
  letter-spacing: 0; text-transform: none;
}
.tbl tbody td { padding: 13px 14px; border-bottom: 1px solid var(--border); color: var(--text-1); vertical-align: middle; }
.tbl tbody tr { transition: background .12s; }
.tbl tbody tr:hover { background: rgba(255,255,255,.018); }
.tbl tbody tr:last-child td { border-bottom: none; }
.tbl .num { font-family: var(--mono); font-size: 12.5px; }
.tbl-card { background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--r); overflow: hidden; }

/* ============================================================
   Status dot
   ============================================================ */
.sdot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; position: relative; }
.sdot.ok { background: var(--green); box-shadow: 0 0 0 3px var(--green-dim); }
.sdot.warn { background: var(--amber); box-shadow: 0 0 0 3px var(--amber-dim); }
.sdot.err { background: var(--red); box-shadow: 0 0 0 3px var(--red-dim); }
.sdot.ok::after {
  content:''; position:absolute; inset:0; border-radius:50%; background: var(--green);
  animation: ping 2.2s ease-out infinite;
}
@keyframes ping { 0%{ transform:scale(1); opacity:.7 } 70%,100%{ transform:scale(3); opacity:0 } }

/* ============================================================
   Forms
   ============================================================ */
.input, .select, textarea.input {
  width: 100%; font-family: var(--font); font-size: 14px;
  background: var(--bg-1); border: 1px solid var(--border-1); border-radius: var(--r-sm);
  color: var(--text); padding: 9px 13px; transition: all .14s; outline: none;
}
.input:focus, .select:focus, textarea.input:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px var(--cyan-dim); }
.input::placeholder { color: var(--text-dim); }
.label { display: block; font-size: 12.5px; color: var(--text-muted); margin-bottom: 6px; font-weight: 500; }
.field { margin-bottom: 16px; }
.select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238995ad' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 34px; cursor: pointer; }

/* toggle */
.toggle { position: relative; width: 38px; height: 22px; border-radius: 100px; background: var(--bg-4); border: 1px solid var(--border-1); cursor: pointer; transition: all .16s; flex: none; }
.toggle::after { content:''; position:absolute; top:2px; left:2px; width:16px; height:16px; border-radius:50%; background:#fff; transition: all .16s; }
.toggle.on { background: var(--cyan); border-color: var(--cyan); }
.toggle.on::after { transform: translateX(16px); }

/* ============================================================
   Avatars (provider lettermarks)
   ============================================================ */
.pav {
  width: 38px; height: 38px; border-radius: 10px; flex: none;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 15px; color: #fff;
  border: 1px solid rgba(255,255,255,.12);
  letter-spacing: -0.03em;
}
.pav-sm { width: 28px; height: 28px; border-radius: 8px; font-size: 12px; }
.pav-lg { width: 56px; height: 56px; border-radius: 14px; font-size: 22px; }
.pav-anthropic { background: linear-gradient(150deg,#c96442,#a04a2e); }
.pav-openai    { background: linear-gradient(150deg,#10a37f,#0d7d62); }
.pav-google    { background: linear-gradient(150deg,#4c8df6,#7b5cf0); }
.pav-deepseek  { background: linear-gradient(150deg,#4d6bfe,#3a52d6); }
.pav-meta      { background: linear-gradient(150deg,#0668e1,#0a4fb0); }
.pav-qwen      { background: linear-gradient(150deg,#7b4dff,#5c2fd6); }
.pav-mistral   { background: linear-gradient(150deg,#fa520f,#d63e08); }

/* ============================================================
   Top navigation (marketing)
   ============================================================ */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(7,10,16,.72);
  backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid var(--border);
}
.nav-inner { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; height: 62px; display: flex; align-items: center; gap: 30px; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-link { font-size: 14px; color: var(--text-muted); padding: 7px 12px; border-radius: var(--r-xs); transition: all .14s; font-weight: 450; }
.nav-link:hover { color: var(--text); background: var(--bg-2); }
.nav-link.active { color: var(--text); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }

/* ---------- Logo ---------- */
.logo { display: inline-flex; align-items: center; gap: 9px; font-weight: 700; font-size: 17px; letter-spacing: -0.03em; color: var(--text); }
.logo-mark {
  width: 28px; height: 28px; border-radius: 8px; position: relative; flex: none;
  background: var(--grad);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 18px -4px var(--cyan-glow);
}
.logo-mark svg { width: 17px; height: 17px; }
.logo b { font-weight: 700; }
.logo .ai { color: var(--cyan); font-weight: 600; }

/* ============================================================
   App shell (dashboard / admin)
   ============================================================ */
.shell { display: grid; grid-template-columns: 244px 1fr; min-height: 100vh; }
.side {
  background: var(--bg-1); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh;
}
.side-head { padding: 16px 18px; border-bottom: 1px solid var(--border); }
.side-nav { padding: 12px 10px; flex: 1; overflow-y: auto; }
.side-sec { font-size: 11px; font-weight: 600; letter-spacing: .07em; text-transform: uppercase; color: var(--text-faint); padding: 14px 12px 7px; }
.side-link {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px; border-radius: var(--r-sm); color: var(--text-muted);
  font-size: 14px; transition: all .13s; cursor: pointer; margin-bottom: 1px; font-weight: 450;
}
.side-link svg { width: 17px; height: 17px; opacity: .8; flex: none; }
.side-link:hover { background: var(--bg-2); color: var(--text-1); }
.side-link.active { background: var(--cyan-dim); color: var(--cyan); }
.side-link.active svg { opacity: 1; }
.side-link .count { margin-left: auto; font-family: var(--mono); font-size: 11px; color: var(--text-dim); }
.side-foot { padding: 12px; border-top: 1px solid var(--border); }

.main { display: flex; flex-direction: column; min-width: 0; }
.topbar {
  height: 60px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 16px; padding: 0 26px;
  position: sticky; top: 0; background: rgba(7,10,16,.8); backdrop-filter: blur(16px); z-index: 20;
}
.topbar h1 { font-size: 17px; font-weight: 600; }
.content { padding: 26px; flex: 1; }

/* search box */
.searchbox { position: relative; display: flex; align-items: center; }
.searchbox svg { position: absolute; left: 11px; width: 15px; height: 15px; color: var(--text-dim); pointer-events: none; }
.searchbox input { padding-left: 33px; }

/* ============================================================
   Stat cards
   ============================================================ */
.stat { background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--r); padding: 17px 18px; }
.stat-label { font-size: 12.5px; color: var(--text-muted); display: flex; align-items: center; gap: 7px; margin-bottom: 9px; }
.stat-value { font-size: 26px; font-weight: 600; letter-spacing: -0.03em; font-family: var(--font); }
.stat-sub { font-size: 12px; margin-top: 5px; display: flex; align-items: center; gap: 5px; }
.up { color: var(--green); } .down { color: var(--red); }

/* ============================================================
   Tabs
   ============================================================ */
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--border); overflow-x: auto; }
.tab {
  font-size: 14px; padding: 11px 15px; color: var(--text-muted); cursor: pointer;
  border-bottom: 2px solid transparent; transition: all .14s; white-space: nowrap; font-weight: 450;
}
.tab:hover { color: var(--text-1); }
.tab.active { color: var(--text); border-bottom-color: var(--cyan); }

/* ============================================================
   Misc
   ============================================================ */
.divider { height: 1px; background: var(--border); border: none; }
.grid { display: grid; gap: 18px; }
.flex { display: flex; }
.row { display: flex; align-items: center; gap: 10px; }
.between { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.glow-cyan { box-shadow: 0 0 80px -20px var(--cyan-glow); }

/* toast */
.toast-wrap { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); z-index: 200; display: flex; flex-direction: column; gap: 8px; align-items: center; }
.toast {
  background: var(--bg-4); border: 1px solid var(--border-strong); border-radius: var(--r-sm);
  padding: 10px 16px; font-size: 13px; color: var(--text); box-shadow: var(--shadow-lg);
  display: flex; align-items: center; gap: 9px; animation: toastin .25s ease;
}
.toast svg { width: 15px; height: 15px; color: var(--green); }
@keyframes toastin { from { opacity:0; transform: translateY(10px); } to { opacity:1; transform:none; } }

/* modal */
.modal-back { position: fixed; inset: 0; background: rgba(3,5,9,.7); backdrop-filter: blur(4px); z-index: 100; display: flex; align-items: center; justify-content: center; padding: 24px; animation: fade .18s ease; }
.modal { background: var(--bg-2); border: 1px solid var(--border-strong); border-radius: var(--r-lg); width: 100%; max-width: 460px; box-shadow: var(--shadow-lg); animation: modalin .22s ease; }
.modal-head { padding: 20px 22px 0; }
.modal-body { padding: 16px 22px; }
.modal-foot { padding: 14px 22px 20px; display: flex; gap: 10px; justify-content: flex-end; }
@keyframes fade { from{opacity:0} to{opacity:1} }
@keyframes modalin { from{opacity:0; transform: translateY(12px) scale(.98)} to{opacity:1; transform:none} }

/* empty state */
.empty { text-align: center; padding: 48px 20px; color: var(--text-dim); }
.empty svg { width: 34px; height: 34px; margin: 0 auto 14px; opacity: .5; }

/* footer */
.footer { border-top: 1px solid var(--border); padding: 56px 0 40px; background: var(--bg-1); }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(4, 1fr); gap: 36px; }
.footer h5 { font-size: 13px; color: var(--text); margin-bottom: 14px; font-weight: 600; }
.footer a { display: block; font-size: 13.5px; color: var(--text-muted); padding: 5px 0; transition: color .13s; }
.footer a:hover { color: var(--text); }
.footer-bottom { margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--text-dim); }

/* utility spacing */
.mt-2{margin-top:8px}.mt-3{margin-top:12px}.mt-4{margin-top:16px}.mt-6{margin-top:24px}.mt-8{margin-top:32px}
.mb-2{margin-bottom:8px}.mb-4{margin-bottom:16px}.mb-6{margin-bottom:24px}.mb-8{margin-bottom:32px}
.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}

/* responsive */
@media (max-width: 980px) {
  .shell { grid-template-columns: 1fr; }
  .side { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
}