/* YOYO OPTIMIZER CLOUD · black, graphite and violet (same identity as the desktop app). */
:root {
  --bg: #07070b;
  --bg-2: #0d0d13;
  --graphite: #15151d;
  --graphite-2: #1d1d27;
  --line: rgba(167, 139, 250, 0.16);
  --line-strong: rgba(167, 139, 250, 0.38);
  --text: #ecebf3;
  --muted: #a3a1b5;
  --violet: #8b5cf6;
  --violet-2: #a78bfa;
  --glow: 0 0 0 1px rgba(139, 92, 246, 0.25), 0 8px 40px -12px rgba(139, 92, 246, 0.45);
  --ok: #4ade80;
  --warn: #fbbf24;
  --bad: #f87171;
  --radius: 14px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: radial-gradient(1200px 600px at 80% -10%, rgba(139, 92, 246, 0.14), transparent 60%), var(--bg);
  color: var(--text);
  font: 15px/1.6 "Segoe UI", system-ui, -apple-system, sans-serif;
  min-height: 100vh;
}
a { color: var(--violet-2); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--violet-2); outline-offset: 2px; }

/* ---------- header ---------- */
.top {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 24px;
  padding: 14px clamp(16px, 4vw, 48px);
  background: rgba(7, 7, 11, 0.78);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: 0.08em; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand .mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, var(--violet), #4c1d95);
  box-shadow: var(--glow);
}
.brand small { color: var(--violet-2); font-weight: 600; letter-spacing: 0.2em; font-size: 11px; }
nav { display: flex; gap: 4px; flex-wrap: wrap; margin-left: auto; }
nav a {
  color: var(--muted); padding: 6px 12px; border-radius: 999px; font-size: 13px; letter-spacing: 0.04em;
  border: 1px solid transparent; transition: color .2s, border-color .2s, background .2s;
}
nav a:hover { color: var(--text); text-decoration: none; border-color: var(--line); }
nav a.active { color: var(--text); border-color: var(--line-strong); background: rgba(139, 92, 246, 0.08); }
.menu-toggle { display: none; margin-left: auto; background: none; border: 1px solid var(--line); color: var(--text); border-radius: 10px; padding: 6px 10px; }

/* ---------- layout ---------- */
main { max-width: 1080px; margin: 0 auto; padding: clamp(24px, 5vw, 56px) clamp(16px, 4vw, 48px) 80px; }
section[data-page] { display: none; animation: rise .35s ease both; }
section[data-page].shown { display: block; }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { section[data-page] { animation: none; } html { scroll-behavior: auto; } }

h1 { font-size: clamp(30px, 5vw, 52px); line-height: 1.1; margin: 0 0 16px; letter-spacing: -0.01em; }
h1 .accent { background: linear-gradient(90deg, var(--violet-2), #c4b5fd); -webkit-background-clip: text; background-clip: text; color: transparent; }
h2 { font-size: 24px; margin: 0 0 8px; }
h3 { font-size: 16px; margin: 0 0 6px; }
.lead { color: var(--muted); font-size: 17px; max-width: 640px; }
.eyebrow { color: var(--violet-2); font-size: 12px; letter-spacing: 0.24em; text-transform: uppercase; margin-bottom: 12px; }

.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); margin-top: 28px; }
.card {
  background: linear-gradient(180deg, var(--graphite), var(--bg-2));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color .25s, box-shadow .25s, transform .25s;
}
.card:hover { border-color: var(--line-strong); box-shadow: var(--glow); }
.card p { color: var(--muted); margin: 0; }
.card.wide { grid-column: 1 / -1; }

.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; cursor: pointer;
  padding: 10px 18px; border-radius: 10px; font: inherit; font-weight: 600;
  color: var(--text); background: var(--graphite-2); border: 1px solid var(--line-strong);
  transition: box-shadow .2s, background .2s, transform .1s;
}
.btn:hover { box-shadow: var(--glow); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn.primary { background: linear-gradient(135deg, var(--violet), #6d28d9); border-color: transparent; }
.btn.danger { border-color: rgba(248, 113, 113, 0.5); color: #fecaca; }
.btn.small { padding: 5px 10px; font-size: 13px; }
.btn[disabled] { opacity: .45; cursor: not-allowed; box-shadow: none; }

form { display: grid; gap: 12px; max-width: 420px; }
label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }
input, select, textarea {
  font: inherit; color: var(--text); background: var(--bg-2);
  border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px;
}
input:focus, select:focus, textarea:focus { border-color: var(--violet-2); outline: none; box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.18); }

.badge { display: inline-block; font-size: 12px; padding: 2px 10px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); }
.badge.active, .badge.published, .badge.verified { color: var(--ok); border-color: rgba(74, 222, 128, .4); }
.badge.pending, .badge.draft { color: var(--warn); border-color: rgba(251, 191, 36, .4); }
.badge.suspended, .badge.revoked, .badge.withdrawn { color: var(--bad); border-color: rgba(248, 113, 113, .4); }

.notice { border: 1px solid var(--line); border-left: 3px solid var(--violet); background: var(--graphite); border-radius: 10px; padding: 12px 16px; color: var(--muted); margin: 16px 0; }
.notice.error { border-left-color: var(--bad); }
.notice.ok { border-left-color: var(--ok); }
.muted { color: var(--muted); }
.mono { font-family: Consolas, "Cascadia Mono", monospace; font-size: 12px; word-break: break-all; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; }
.table-wrap { overflow-x: auto; }

.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin: 20px 0; }
.tabs button { background: none; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; font: inherit; cursor: pointer; }
.tabs button.on { color: var(--text); border-color: var(--line-strong); background: rgba(139, 92, 246, .08); }

footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; padding: 24px clamp(16px, 4vw, 48px); text-align: center; }
.hidden { display: none !important; }
.qr svg, .qr img { background: #fff; padding: 8px; border-radius: 8px; width: 180px; height: 180px; }

@media (max-width: 760px) {
  .menu-toggle { display: inline-block; }
  nav { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; padding: 12px 16px; background: var(--bg); border-bottom: 1px solid var(--line); }
  nav.open { display: flex; }
  .top { position: sticky; }
}