:root {
  --bg: #070708;
  --card: #121216;
  --elev: #18181d;
  --line: #2a2a32;
  --text: #f4f4f5;
  --muted: #a1a1aa;
  --dim: #71717a;
  --orange: #ff6b2c;
  --green: #25d366;
  --cyan: #22d3ee;
  --radius: 14px;
  --font: "DM Sans", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --nav-h: 58px;
  --bottom-h: 64px;
  --safe-b: env(safe-area-inset-bottom, 0px);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
.bg-glow {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(ellipse 70% 40% at 10% 0%, rgba(255,107,44,.16), transparent 55%),
    radial-gradient(ellipse 50% 30% at 90% 10%, rgba(37,211,102,.08), transparent 50%);
}

/* Auth */
.auth-page { display: grid; place-items: center; padding: 24px; min-height: 100dvh; position: relative; }
.auth-card {
  position: relative; z-index: 1; width: min(420px, 100%);
  background: var(--card); border: 1px solid var(--line); border-radius: 18px;
  padding: 28px 22px; box-shadow: 0 24px 60px rgba(0,0,0,.45);
}
.auth-brand { display: flex; gap: 12px; align-items: center; margin-bottom: 18px; }
.auth-brand strong { display: block; font-size: 15px; }
.auth-brand span { font-size: 12px; color: var(--dim); }
.auth-card h1 { font-size: 1.45rem; margin-bottom: 6px; }
.muted { color: var(--muted); font-size: 14px; margin-bottom: 16px; }
.auth-card label {
  display: grid; gap: 6px; font-size: 13px; font-weight: 600; margin-bottom: 12px; color: var(--muted);
}
.auth-card input {
  background: #0a0a0c; border: 1px solid var(--line); border-radius: 10px;
  padding: 14px 14px; color: var(--text); outline: none; font-size: 16px;
}
.auth-card input:focus { border-color: #555; }
.error { color: #fb7185; font-size: 13px; margin-bottom: 10px; }
.auth-foot { margin-top: 16px; font-size: 13px; color: var(--dim); text-align: center; }
.install-hint {
  margin-top: 16px; padding: 12px; border-radius: 10px; background: var(--elev);
  border: 1px solid var(--line); font-size: 12.5px; color: var(--muted);
}
.install-hint p + p { margin-top: 6px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid transparent; border-radius: 10px; padding: 12px 16px;
  font-weight: 700; font-size: 14px; cursor: pointer; transition: .15s;
  background: none; color: var(--text);
}
.btn-primary {
  background: linear-gradient(135deg, #ff7a3d, #e8481a);
  color: #fff; box-shadow: 0 8px 22px rgba(232,72,26,.3); width: 100%;
}
.btn-primary:hover { filter: brightness(1.05); }
.btn-primary:disabled { opacity: .6; cursor: wait; }
.btn-ghost { background: var(--elev); border-color: var(--line); }
.btn-ghost:hover { border-color: #444; }
.btn-sm { padding: 8px 12px; font-size: 12px; width: auto; }

/* App shell */
.app-page { position: relative; padding-bottom: calc(var(--bottom-h) + var(--safe-b) + 8px); }
.top {
  position: sticky; top: 0; z-index: 30;
  background: rgba(7,7,8,.88); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  padding-top: env(safe-area-inset-top, 0);
}
.top-inner {
  max-width: 1200px; margin: 0 auto; padding: 10px 14px;
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  min-height: var(--nav-h);
}
.brand { display: flex; gap: 10px; align-items: center; min-width: 0; }
.brand strong { display: block; font-size: 13px; }
.brand span { font-size: 11px; color: var(--dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 40vw; }
.top-actions { display: flex; gap: 6px; align-items: center; flex-shrink: 0; }
.offer-pill {
  font-size: 10px; font-weight: 800; letter-spacing: .04em; text-transform: uppercase;
  padding: 5px 8px; border-radius: 999px; background: rgba(255,107,44,.15);
  color: var(--orange); border: 1px solid rgba(255,107,44,.35); max-width: 100px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.layout {
  position: relative; z-index: 1;
  max-width: 1200px; margin: 0 auto; padding: 14px;
  display: grid; grid-template-columns: 200px 1fr; gap: 16px;
}
.side {
  display: flex; flex-direction: column; gap: 3px;
  position: sticky; top: calc(var(--nav-h) + 12px); align-self: start;
}
.nav-item {
  text-align: left; padding: 10px 12px; border-radius: 10px;
  border: 1px solid transparent; background: transparent; color: var(--muted);
  font-weight: 600; font-size: 13px; cursor: pointer;
}
.nav-item:hover { background: var(--elev); color: var(--text); }
.nav-item.active {
  background: rgba(255,107,44,.12); border-color: rgba(255,107,44,.35); color: var(--text);
}
.nav-item[hidden], .bnav[hidden] { display: none !important; }

.content { min-width: 0; }
.panel { display: none; animation: fade .2s ease; }
.panel.active { display: block; }
@keyframes fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
.panel h1 { font-size: 1.4rem; letter-spacing: -.02em; margin-bottom: 6px; }
.lead { color: var(--muted); margin-bottom: 16px; max-width: 60ch; font-size: 14px; }

.cards-3, .cards-2, .offers-grid, .skills-grid {
  display: grid; gap: 10px; margin-bottom: 14px;
}
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.cards-2 { grid-template-columns: repeat(2, 1fr); }
.offers-grid { grid-template-columns: repeat(3, 1fr); }
.skills-grid { grid-template-columns: repeat(2, 1fr); }

.card, .skill-card, .offer-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px;
}
.card h3, .skill-card h3, .offer-card h3 { font-size: 14px; margin-bottom: 6px; }
.card p, .skill-card p, .offer-card p { font-size: 12.5px; color: var(--muted); margin-bottom: 10px; }
.card .btn, .skill-card .btn { width: auto; }
.status-card pre, #ocStatus, .result pre {
  font-family: var(--mono); font-size: 11.5px; white-space: pre-wrap; word-break: break-word;
  color: #d4d4d8; line-height: 1.5;
}
.status-card pre { max-height: 180px; overflow: auto; }

.skill-filters { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.chip-btn {
  border: 1px solid var(--line); background: var(--elev); color: var(--muted);
  border-radius: 999px; padding: 7px 12px; font-size: 12px; font-weight: 700; cursor: pointer;
}
.chip-btn.active { background: rgba(255,107,44,.15); border-color: rgba(255,107,44,.4); color: var(--text); }

.skill-card {
  cursor: pointer; transition: border-color .15s, transform .15s;
  display: flex; flex-direction: column; gap: 4px; min-height: 110px;
}
.skill-card:hover, .skill-card:active { border-color: #4a4a55; transform: translateY(-1px); }
.skill-card .cat { font-size: 10px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--dim); }
.skill-card.selected { border-color: var(--orange); box-shadow: 0 0 0 1px rgba(255,107,44,.3); }

.offer-card.current { border-color: rgba(255,107,44,.5); background: linear-gradient(180deg, rgba(255,107,44,.1), transparent 50%), var(--card); }
.offer-card .price { font-size: 11px; font-weight: 800; color: var(--dim); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 4px; }
.offer-card ul { padding-left: 16px; font-size: 12px; color: var(--muted); display: grid; gap: 4px; }

.gen-form {
  display: grid; gap: 12px;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px; margin-bottom: 12px; max-width: 640px;
}
.gen-form label {
  display: grid; gap: 6px; font-size: 11px; font-weight: 700; color: var(--muted);
  text-transform: uppercase; letter-spacing: .04em;
}
.gen-form input, .gen-form select {
  background: #0a0a0c; border: 1px solid var(--line); border-radius: 10px;
  padding: 12px; color: var(--text); text-transform: none; letter-spacing: 0; font-weight: 500; font-size: 16px;
}
.gen-form h3 { font-size: 15px; color: var(--text); text-transform: none; letter-spacing: 0; }
.gen-form .btn-ghost { width: 100%; }

.result {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 12px; max-width: 720px;
}
.result-bar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; gap: 8px; }
.badge {
  font-size: 10px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase;
  padding: 4px 8px; border-radius: 6px; background: rgba(34,211,238,.12); color: var(--cyan);
}
.badge.local { background: rgba(255,107,44,.12); color: var(--orange); }
.badge.grok { background: rgba(37,211,102,.12); color: var(--green); }

.sites-list, .history-list { display: grid; gap: 8px; }
.site-item, .hist-item {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px;
}
.site-item h3, .hist-item h3 { font-size: 13.5px; margin-bottom: 4px; }
.site-item p, .hist-item p { font-size: 12px; color: var(--muted); }
.hist-item pre {
  margin-top: 8px; max-height: 100px; overflow: auto;
  font-family: var(--mono); font-size: 11px; color: #c4c4cc; white-space: pre-wrap;
}
code { font-family: var(--mono); font-size: .9em; background: #0a0a0c; padding: 1px 5px; border-radius: 4px; }

/* Bottom nav mobile */
.bottom-nav {
  display: none;
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
  background: rgba(10,10,12,.94); backdrop-filter: blur(16px);
  border-top: 1px solid var(--line);
  padding: 6px 4px calc(6px + var(--safe-b));
  grid-template-columns: repeat(5, 1fr); gap: 2px;
}
.bnav {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  background: none; border: none; color: var(--dim); font-size: 10px; font-weight: 700;
  padding: 6px 2px; cursor: pointer; border-radius: 10px;
}
.bnav span { font-size: 18px; line-height: 1.1; }
.bnav.active { color: var(--orange); background: rgba(255,107,44,.1); }

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; padding: 12px 12px 8px; }
  .desktop-nav { display: none; }
  .bottom-nav { display: grid; }
  .cards-3, .cards-2, .offers-grid, .skills-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr 1fr; }
  .panel h1 { font-size: 1.25rem; }
  .top-actions .btn-sm { padding: 7px 9px; }
}
@media (max-width: 400px) {
  .skills-grid { grid-template-columns: 1fr; }
}
@media (min-width: 861px) {
  .app-page { padding-bottom: 24px; }
}