:root {
  --red: #9e0000; --red-dark: #7a0000; --ink: #1d1b1a; --muted: #6b6560; --bg: #f5f3f1; --card: #ffffff; --line: #e4dfdb;
  --side: #1f1c1b; --side-ink: #f2eeeb; --side-muted: #b8b0aa; --side-active: #3a3330; --error: #b3261e; --ok: #2e7d32;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--ink); background: var(--bg);
}
@media (prefers-color-scheme: dark) {
  :root { --ink: #f1ecea; --muted: #b5ada8; --bg: #141211; --card: #1f1c1b; --line: #36302d; --side: #0f0d0d; --side-active: #2c2624; }
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); }
[hidden] { display: none !important; }
a { color: inherit; }
.muted { color: var(--muted); }
.error { color: var(--error); min-height: 1.2em; }
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; border-radius: 10px; border: 1px solid var(--line); background: var(--card); color: var(--ink); text-decoration: none; font: inherit; cursor: pointer; }
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--red); border-color: var(--red); color: #fff; }
.btn.primary:hover { background: var(--red-dark); }
.btn.big { padding: 13px 22px; font-size: 17px; font-weight: 600; }
.btn.danger { color: var(--error); }
.link { background: none; border: 0; color: var(--side-muted); cursor: pointer; font: inherit; padding: 0; text-decoration: underline; }

.login { min-height: 100%; display: grid; place-items: center; padding: 16px; background: linear-gradient(160deg, var(--red) 0 38%, var(--bg) 38%); }
.login-card { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 32px 28px; width: min(420px, 100%); text-align: center; display: grid; gap: 12px; justify-items: center; box-shadow: 0 12px 40px rgba(0,0,0,.15); }
.login-card img { border-radius: 16px; }
.login-card h1 { margin: 0; }
.small-link { color: var(--muted); font-size: 14px; }

.shell { display: grid; grid-template-columns: 236px 1fr; height: 100vh; }
.side { background: var(--side); color: var(--side-ink); display: flex; flex-direction: column; min-height: 0; }
.brand { display: flex; align-items: center; gap: 10px; padding: 16px; text-decoration: none; font-weight: 700; font-size: 18px; }
.brand img { width: 34px; height: 34px; border-radius: 8px; }
#nav { flex: 1; overflow-y: auto; padding: 4px 8px; display: grid; align-content: start; gap: 2px; }
.nav-item { display: flex; align-items: center; gap: 12px; padding: 9px 12px; border-radius: 10px; color: var(--side-ink); text-decoration: none; font-size: 15px; }
.nav-item:hover { background: var(--side-active); }
.nav-item.active { background: var(--red); color: #fff; }
.nav-item .ext { margin-left: auto; color: var(--side-muted); font-size: 12px; }
.nav-item.active .ext { color: #fff; }
.ico { width: 22px; height: 22px; display: inline-grid; place-items: center; flex: none; }
.ico svg { width: 22px; height: 22px; fill: currentColor; }
.side-foot { padding: 8px; border-top: 1px solid #ffffff1a; display: grid; gap: 2px; }
.me { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 10px 12px 4px; font-size: 13px; color: var(--side-muted); }
.me-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.main { display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 18px; border-bottom: 1px solid var(--line); background: var(--card); }
.bar h1 { font-size: 18px; margin: 0; }
.bar-actions { display: flex; gap: 8px; }
.view { flex: 1; min-height: 0; overflow: auto; }
.home { padding: 24px; }
.home h2 { margin: 0 0 4px; font-size: 22px; }
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; margin-top: 18px; }
.tile { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; align-items: start; padding: 16px; border-radius: 16px; background: var(--card); border: 1px solid var(--line); text-decoration: none; cursor: pointer; text-align: left; font: inherit; color: inherit; }
.tile:hover { border-color: var(--red); box-shadow: 0 6px 20px rgba(0,0,0,.08); }
.tile .ico { grid-row: span 2; width: 46px; height: 46px; border-radius: 12px; background: color-mix(in srgb, var(--red) 12%, transparent); color: var(--red); }
.tile .ico svg { width: 26px; height: 26px; }
.tile strong { font-size: 16px; }
.tile .desc { color: var(--muted); font-size: 14px; }
.tile .tag { grid-column: 2; font-size: 12px; color: var(--muted); }
.frames { position: relative; overflow: hidden; }
.frames iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; background: var(--card); }
.page { padding: 24px; max-width: 980px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px; margin-bottom: 14px; }
.card h3 { margin: 0 0 8px; }
.steps { margin: 0; padding-left: 20px; display: grid; gap: 6px; }
code { background: color-mix(in srgb, var(--muted) 15%, transparent); padding: 1px 6px; border-radius: 6px; word-break: break-all; }

.admin-list { display: grid; gap: 8px; }
.admin-row { display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; padding: 10px 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--card); }
.admin-row .meta { color: var(--muted); font-size: 13px; }
.admin-row .acts { display: flex; gap: 6px; }
.admin-row .acts .btn { padding: 6px 10px; }
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 16px; }
.form label { display: grid; gap: 4px; font-size: 14px; color: var(--muted); }
.form label.wide { grid-column: span 2; }
.form input[type=text], .form input[type=url], .form select, .form textarea { font: inherit; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); }
.form .check { display: flex; align-items: center; gap: 8px; color: var(--ink); }
.form fieldset { grid-column: span 2; border: 1px solid var(--line); border-radius: 12px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 16px; padding: 12px; }
.form legend { color: var(--muted); padding: 0 6px; }
.form-actions { grid-column: span 2; display: flex; gap: 8px; justify-content: flex-end; }
.notice { padding: 10px 14px; border-radius: 10px; background: color-mix(in srgb, var(--ok) 14%, transparent); }
.notice.err { background: color-mix(in srgb, var(--error) 14%, transparent); color: var(--error); }

@media (max-width: 760px) {
  .shell { grid-template-columns: 64px 1fr; }
  .brand span, .nav-item span:not(.ico), .nav-item .ext, .me { display: none; }
  .form, .form fieldset { grid-template-columns: 1fr; }
  .form label.wide, .form fieldset, .form-actions { grid-column: auto; }
}