:root {
  --bg: #0b0d12;
  --bg-elevated: #14161d;
  --bg-card: #171a22;
  --bg-hover: #1d212b;
  --border: #262b36;
  --border-soft: #1d212a;
  --text: #eceef2;
  --text-dim: #9aa1b0;
  --accent: #7c8cff;
  --accent-2: #a06bff;
  --accent-dim: #2a2d55;
  --accent-glow: rgba(124, 140, 255, .35);
  --ok: #3ecf8e;
  --warn: #e8b339;
  --err: #f0576f;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --space-1: .35rem;
  --space-2: .6rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);
  --shadow-md: 0 8px 24px -8px rgba(0, 0, 0, .55);
  --ease: cubic-bezier(.4, 0, .2, 1);
}

* { box-sizing: border-box; }

html {
  color-scheme: dark;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 900px 500px at 15% -10%, rgba(124, 140, 255, .10), transparent 60%),
    radial-gradient(ellipse 700px 500px at 100% 0%, rgba(160, 107, 255, .07), transparent 55%);
  background-attachment: fixed;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.45;
}

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

::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 999px; border: 3px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: #333947; }

a { color: var(--accent); text-decoration: none; transition: color .15s var(--ease); }
a:hover { color: #9aa6ff; text-decoration: underline; }

h1, h2, h3 { line-height: 1.25; margin: 0 0 .6em; letter-spacing: -.01em; }
h1 { font-size: 1.55rem; font-weight: 700; }
h2 { font-size: 1.15rem; font-weight: 650; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(20, 22, 29, .75);
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
  border-bottom: 1px solid var(--border-soft);
}
@supports not (backdrop-filter: blur(1px)) {
  .topbar { background: var(--bg-elevated); }
}
.topbar-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: .65rem 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.brand {
  font-weight: 800;
  font-size: 1.12rem;
  margin-right: .5rem;
  letter-spacing: -.02em;
  background: linear-gradient(135deg, #fff 15%, var(--accent) 70%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand:hover { text-decoration: none; filter: brightness(1.12); }
.nav-toggle {
  display: none;
  margin-left: auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: .35rem .6rem;
  font-size: 1.1rem;
  transition: border-color .15s var(--ease), background .15s var(--ease);
}
.nav-toggle:hover { border-color: var(--accent); background: var(--bg-hover); }
nav { display: flex; gap: .2rem; flex-wrap: wrap; align-items: center; }
nav a {
  position: relative;
  color: var(--text-dim);
  padding: .45rem .75rem;
  border-radius: var(--radius-sm);
  font-size: .92rem;
  font-weight: 500;
  transition: color .15s var(--ease), background .15s var(--ease);
}
nav a:hover { background: var(--bg-hover); color: var(--text); text-decoration: none; }
nav a.active { background: var(--accent-dim); color: #cdd3ff; text-decoration: none; }
nav a.active::after {
  content: "";
  position: absolute;
  left: .5rem;
  right: .5rem;
  bottom: -1px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
.logout-form { margin: 0 0 0 auto; }
.link-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: .92rem;
  padding: .4rem .5rem;
  transition: color .15s var(--ease);
}
.link-btn:hover { color: var(--err); }

.page { max-width: 1100px; margin: 0 auto; padding: 1.2rem 1rem 4rem; }

.card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.05rem 1.15rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
  transition: border-color .15s var(--ease), box-shadow .15s var(--ease), transform .15s var(--ease);
}
.card::before {
  content: "";
  position: absolute;
  top: 0; left: 1rem; right: 1rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(124, 140, 255, .5), transparent);
  opacity: .6;
}

.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; padding: .6rem .5rem; border-bottom: 1px solid var(--border-soft); vertical-align: top; }
th { color: var(--text-dim); font-weight: 650; font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; }
tr:last-child td { border-bottom: none; }
tbody tr { transition: background .12s var(--ease); }
tbody tr:hover { background: var(--bg-hover); }
.table-wrap { overflow-x: auto; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: .55rem 1rem;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 4px 14px -4px rgba(124, 140, 255, .45);
  transition: transform .15s var(--ease), box-shadow .15s var(--ease), filter .15s var(--ease);
}
.btn:hover { filter: brightness(1.08); transform: translateY(-1px); text-decoration: none; box-shadow: 0 8px 20px -6px rgba(124, 140, 255, .55); }
.btn:active { transform: translateY(0); }
.btn.secondary {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  box-shadow: none;
}
.btn.secondary:hover { background: var(--bg-hover); border-color: #3a4152; box-shadow: none; transform: translateY(-1px); }
.btn.danger { background: linear-gradient(135deg, var(--err), #c93b52); box-shadow: 0 4px 14px -4px rgba(240, 87, 111, .45); }
.btn.danger:hover { box-shadow: 0 8px 20px -6px rgba(240, 87, 111, .55); }
.btn.small { padding: .32rem .65rem; font-size: .82rem; }
.btn-row { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }

label { display: block; font-size: .85rem; color: var(--text-dim); margin: .8rem 0 .3rem; font-weight: 500; }
label:first-child { margin-top: 0; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=url],
input[type=datetime-local],
select, textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: .55rem .65rem;
  font-size: .95rem;
  font-family: inherit;
  transition: border-color .15s var(--ease), box-shadow .15s var(--ease);
}
input:hover, select:hover, textarea:hover { border-color: #333a49; }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
textarea { min-height: 90px; font-family: ui-monospace, Consolas, monospace; font-size: .85rem; }
input[type=checkbox] { width: auto; margin-right: .4rem; accent-color: var(--accent); }
.checkbox-row { display: flex; align-items: center; margin: .8rem 0; }
.checkbox-row label { margin: 0; color: var(--text); }

.hint { color: var(--text-dim); font-size: .8rem; margin-top: .3rem; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .2rem .6rem .2rem .5rem;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 650;
}
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; flex: none; }
.badge-ok { background: rgba(62, 207, 142, .14); color: var(--ok); }
.badge-warn { background: rgba(232, 179, 57, .14); color: var(--warn); }
.badge-err { background: rgba(240, 87, 111, .14); color: var(--err); }
.badge-dim { background: rgba(154, 161, 176, .14); color: var(--text-dim); }

.flash {
  padding: .65rem .9rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  font-size: .92rem;
  border-left: 3px solid transparent;
  background: var(--bg-elevated);
}
.flash-ok { color: var(--ok); border-left-color: var(--ok); background: rgba(62, 207, 142, .08); }
.flash-err { color: var(--err); border-left-color: var(--err); background: rgba(240, 87, 111, .08); }

.login-wrap { max-width: 360px; margin: 10vh auto; }

.stat { text-align: center; overflow: hidden; }
.stat .num {
  font-size: 1.9rem;
  font-weight: 750;
  letter-spacing: -.02em;
  background: linear-gradient(135deg, #fff, var(--accent) 120%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat .label { color: var(--text-dim); font-size: .8rem; margin-top: .15rem; }
.stat:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: #333a49; }

.rss-links { display: flex; flex-direction: column; gap: .5rem; }
.rss-link-row { display: flex; gap: .5rem; align-items: center; }
.rss-link-row input[type=text] { flex: 1; }
.rss-link-row input[type=number] { width: 90px; flex: none; }
.rss-link-row .btn { flex: none; }
@media (max-width: 560px) {
  .rss-link-row { flex-wrap: wrap; }
  .rss-link-row input[type=text] { flex-basis: 100%; }
}

.schedule-form { display: flex; gap: .4rem; align-items: center; margin-top: .4rem; }
.schedule-form input[type=datetime-local] { width: auto; padding: .3rem .4rem; font-size: .82rem; }

.queue-edit-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; align-items: start; }
@media (max-width: 860px) {
  .queue-edit-grid { grid-template-columns: 1fr; }
}

.tg-preview {
  background: #17212b;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .8rem;
  color: #e7ecf0;
  font-size: .92rem;
  box-shadow: var(--shadow-sm);
}
.tg-preview-head { display: flex; align-items: center; gap: .5rem; margin-bottom: .6rem; }
.tg-preview-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; font-weight: 700;
  display: flex; align-items: center; justify-content: center; flex: none;
}
.tg-preview-name { font-weight: 600; }
.tg-preview-media { max-width: 100%; border-radius: 8px; margin-bottom: .6rem; display: block; }
.tg-preview-text { white-space: pre-wrap; word-wrap: break-word; line-height: 1.4; }
.tg-preview-text a { color: #6cb2f5; }
.tg-preview-text blockquote { margin: .4rem 0; padding-left: .6rem; border-left: 3px solid #3b4a58; color: #b8c4cc; }

.node-row {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .8rem;
  margin-bottom: .6rem;
  background: var(--bg-elevated);
  transition: border-color .15s var(--ease);
}
.node-row:hover { border-color: #333a49; }
.node-row-head { display: flex; align-items: center; gap: .5rem; margin-bottom: .5rem; flex-wrap: wrap; }
.node-row-head strong { margin-right: auto; }
.inline-form { display: inline; }

.empty { color: var(--text-dim); padding: 1.5rem 0; text-align: center; }

@media (max-width: 720px) {
  .nav-toggle { display: inline-block; }
  #mainNav { display: none; width: 100%; flex-direction: column; align-items: stretch; }
  #mainNav.open { display: flex; }
  #mainNav a { padding: .6rem .5rem; }
  .logout-form { margin: .3rem 0 0; }
  th, td { padding: .45rem .35rem; font-size: .85rem; }
}