/* ============================================================
   张天明 · TOTK 联机站 — 唯美主题
   配色灵感：海拉鲁深夜空 × 左纳乌青蓝光辉 × 余烬金
   ============================================================ */

:root {
  --bg: #eef4f4;
  --bg-glow-a: rgba(45, 212, 191, .16);
  --bg-glow-b: rgba(129, 140, 248, .14);
  --bg-glow-c: rgba(217, 168, 80, .12);
  --surface: rgba(255, 255, 255, .78);
  --surface-solid: #ffffff;
  --surface-raised: rgba(240, 247, 247, .85);
  --border: rgba(23, 68, 78, .12);
  --border-strong: rgba(23, 68, 78, .2);
  --text: #16242b;
  --text-muted: #5c7280;
  --accent: #0d7f78;
  --accent-soft: rgba(13, 127, 120, .1);
  --accent-strong: #0a5f5a;
  --gold: #a06b17;
  --gold-soft: rgba(191, 144, 49, .14);
  --green: #0f8a5f;
  --red: #bf4451;
  --shadow: 0 18px 50px -18px rgba(19, 56, 66, .25);
  --shadow-soft: 0 8px 28px -12px rgba(19, 56, 66, .18);
  --glow: 0 0 32px rgba(45, 212, 191, .28);
  --radius: 18px;
  --radius-lg: 26px;
}

:root[data-theme=dark] {
  --bg: #081014;
  --bg-glow-a: rgba(45, 212, 191, .13);
  --bg-glow-b: rgba(99, 102, 241, .12);
  --bg-glow-c: rgba(251, 191, 36, .07);
  --surface: rgba(17, 30, 37, .74);
  --surface-solid: #101c23;
  --surface-raised: rgba(27, 44, 53, .8);
  --border: rgba(126, 200, 199, .14);
  --border-strong: rgba(126, 200, 199, .26);
  --text: #e8f2f1;
  --text-muted: #8fa8ae;
  --accent: #4fd8cc;
  --accent-soft: rgba(79, 216, 204, .12);
  --accent-strong: #7ff0e4;
  --gold: #e5b45b;
  --gold-soft: rgba(229, 180, 91, .12);
  --green: #43d99a;
  --red: #ff7e86;
  --shadow: 0 24px 60px -20px rgba(0, 0, 0, .55);
  --shadow-soft: 0 10px 30px -14px rgba(0, 0, 0, .5);
  --glow: 0 0 42px rgba(45, 212, 191, .22);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  color: var(--text);
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  line-height: 1.6;
  transition: background .25s, color .25s;
}

body {
  background:
    radial-gradient(1100px 620px at 88% -8%, var(--bg-glow-a), transparent 60%),
    radial-gradient(900px 560px at -10% 12%, var(--bg-glow-b), transparent 62%),
    radial-gradient(760px 480px at 50% 108%, var(--bg-glow-c), transparent 60%),
    var(--bg);
  background-attachment: fixed;
}

::selection { background: color-mix(in srgb, var(--accent) 30%, transparent); }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 45%, transparent);
  outline-offset: 2px;
  border-radius: 6px;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-solid) 72%, transparent);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
}

.header-inner, main { max-width: 1120px; margin: 0 auto; }

.header-inner {
  min-height: 84px;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
}

.brand-block, .header-actions { display: flex; align-items: center; gap: 1rem; }
.brand-block { gap: .8rem; }

.wordmark {
  display: flex;
  align-items: center;
  gap: .6rem;
  color: var(--text);
  font-family: "Fraunces", serif;
  font-size: 1.45rem;
  font-weight: 600;
  letter-spacing: -.01em;
  white-space: nowrap;
}
.wordmark:hover { text-decoration: none; color: var(--accent); }

.brand-mark {
  display: grid;
  place-items: center;
  width: 2.15rem;
  height: 2.15rem;
  border-radius: 12px;
  color: #fff;
  background: linear-gradient(140deg, var(--accent) 10%, #2b7fd4 90%);
  box-shadow: 0 4px 16px -4px color-mix(in srgb, var(--accent) 55%, transparent);
  font: 600 1.25rem "Fraunces", serif;
}

.tagline {
  margin: 0;
  color: var(--text-muted);
  font-size: .84rem;
  border-left: 1px solid var(--border);
  padding-left: .85rem;
}

.theme-switcher {
  display: flex;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 3px;
}
.theme-switcher button {
  border: 0;
  background: transparent;
  color: var(--text-muted);
  padding: .35rem .5rem;
  border-radius: 9px;
  font-size: .8rem;
  cursor: pointer;
  display: flex;
  gap: .22rem;
  align-items: center;
}
.theme-switcher button:hover { background: transparent; color: var(--text); transform: none; }
.theme-switcher button.active {
  background: var(--surface-solid);
  color: var(--text);
  box-shadow: 0 2px 10px rgba(0, 0, 0, .12);
}

main { padding: 2.2rem 1.5rem 2rem; }

/* ---------- Hero / welcome ---------- */

.eyebrow {
  color: var(--accent);
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.welcome {
  position: relative;
  overflow: hidden;
  padding: 2.6rem 2.4rem;
  margin-bottom: 1.6rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, .16);
  color: #f2f7ff;
  background:
    radial-gradient(540px 260px at 84% 18%, rgba(229, 180, 91, .32), transparent 65%),
    radial-gradient(460px 300px at 8% 100%, rgba(79, 216, 204, .34), transparent 68%),
    linear-gradient(128deg, #0c2a3f 0%, #123f5c 46%, #155e63 100%);
  box-shadow: var(--shadow);
  animation: rise-in .55s cubic-bezier(.2, .7, .3, 1) both;
}
.welcome::before, .welcome::after {
  content: "✦";
  position: absolute;
  color: rgba(255, 255, 255, .34);
  font-size: 1.1rem;
  animation: twinkle 3.4s ease-in-out infinite;
}
.welcome::before { top: 1.6rem; right: 2.2rem; }
.welcome::after { bottom: 2rem; right: 6.5rem; font-size: .8rem; animation-delay: 1.4s; }

.welcome h1 {
  margin: .45rem 0 .55rem;
  font: 600 clamp(1.75rem, 3.2vw, 2.45rem) "Fraunces", serif;
  letter-spacing: -.025em;
  line-height: 1.22;
}
.welcome p { margin: 0; max-width: 46rem; opacity: .88; }

/* ---------- Panels ---------- */

.panel {
  position: relative;
  background: var(--surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-soft);
  transition: border-color .25s, box-shadow .25s, transform .25s;
  animation: rise-in .55s cubic-bezier(.2, .7, .3, 1) both;
}
.panel:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow);
}

.panel h2 {
  margin: 0 0 1rem;
  font: 600 1.3rem "Fraunces", serif;
  letter-spacing: -.015em;
}

.panel-heading { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.panel-heading h2 { margin: .1rem 0 0; }

.panel-icon {
  display: grid;
  place-items: center;
  width: 2.6rem;
  height: 2.6rem;
  margin-bottom: .9rem;
  border-radius: 13px;
  color: var(--accent);
  background: linear-gradient(140deg, var(--accent-soft), var(--gold-soft));
  border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
  box-shadow: inset 0 0 14px color-mix(in srgb, var(--accent) 10%, transparent);
  font-size: 1.4rem;
}

.count-badge {
  display: grid;
  place-items: center;
  min-width: 1.9rem;
  height: 1.9rem;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  color: var(--accent);
  font-size: .8rem;
  font-weight: 600;
}

.home-grid {
  display: grid;
  grid-template-columns: minmax(260px, .78fr) minmax(0, 1.22fr);
  gap: 1.5rem;
  align-items: start;
}
.home-grid > .panel { animation-delay: .08s; }
.home-grid > .panel + .panel { animation-delay: .16s; }

/* ---------- Forms & buttons ---------- */

.field { margin-bottom: 1rem; }
.field label { display: block; margin-bottom: .4rem; color: var(--text-muted); font-size: .84rem; }

input[type=number], input[type=text], input[type=password], input[type=file], select {
  width: 100%;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  color: var(--text);
  padding: .68rem .8rem;
  border-radius: 11px;
  font: inherit;
  font-size: .92rem;
  transition: border-color .2s, box-shadow .2s;
}
input:hover, select:hover { border-color: var(--border-strong); }
input:focus, select:focus {
  outline: none;
  border-color: color-mix(in srgb, var(--accent) 60%, transparent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 16%, transparent);
}
input[type=file] { padding: .55rem .8rem; }

button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  border: 0;
  border-radius: 11px;
  padding: .68rem 1.05rem;
  color: #fff;
  font-weight: 600;
  font-size: .88rem;
  cursor: pointer;
  background: linear-gradient(135deg, var(--accent) 0%, color-mix(in srgb, var(--accent) 55%, #2b7fd4) 100%);
  box-shadow: 0 6px 18px -8px color-mix(in srgb, var(--accent) 70%, transparent);
  transition: transform .15s, box-shadow .2s, filter .2s;
}
button:hover, .btn:hover {
  filter: brightness(1.06);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 10px 24px -8px color-mix(in srgb, var(--accent) 75%, transparent);
}
button:active, .btn:active { transform: translateY(0); }
button:disabled, .btn:disabled { opacity: .5; cursor: not-allowed; filter: none; transform: none; box-shadow: none; }

button.secondary, .btn.secondary {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  color: var(--text);
  box-shadow: none;
}
button.secondary:hover, .btn.secondary:hover {
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  background: var(--surface-raised);
  color: var(--accent);
  box-shadow: 0 4px 14px -8px color-mix(in srgb, var(--accent) 50%, transparent);
}

button.danger, .btn.danger {
  background: transparent;
  border: 1px solid color-mix(in srgb, var(--red) 55%, var(--border));
  color: var(--red);
  box-shadow: none;
}
button.danger:hover, .btn.danger:hover {
  color: #fff;
  background: var(--red);
  border-color: var(--red);
  box-shadow: 0 6px 16px -8px color-mix(in srgb, var(--red) 70%, transparent);
}

.primary-wide { width: 100%; justify-content: space-between; margin-top: .3rem; }

.meta { color: var(--text-muted); font-size: .83rem; }

/* ---------- Rooms list ---------- */

.room-list { list-style: none; margin: 0; padding: 0; }
.room-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--border);
}
.room-row:first-child { border-top: 0; padding-top: .25rem; }
.room-name { font-family: "IBM Plex Mono", monospace; font-size: .92rem; }

.status-dot {
  display: inline-block;
  width: .55rem;
  height: .55rem;
  border-radius: 50%;
  margin-right: .5rem;
  background: var(--text-muted);
  vertical-align: baseline;
}
.status-dot.running {
  background: var(--green);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--green) 14%, transparent);
  animation: pulse 2.2s ease-in-out infinite;
}

.empty-state { color: var(--text-muted); padding: 1.6rem 0; text-align: center; }
.empty-state::before { content: "✧"; display: block; font-size: 1.5rem; margin-bottom: .4rem; opacity: .5; }

/* ---------- Room detail ---------- */

.breadcrumb { margin: 0 0 1.1rem; font-size: .88rem; }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--accent); text-decoration: none; }

.room-hero { display: flex; justify-content: space-between; gap: 1.5rem; align-items: flex-start; }
.room-hero h1 { margin: .3rem 0 .85rem; font: 600 clamp(1.7rem, 3vw, 2.4rem) "Fraunces", serif; letter-spacing: -.02em; }

.room-connection { display: flex; gap: .8rem; flex-wrap: wrap; align-items: center; margin: 0; font-size: .9rem; }

.status-pill {
  display: inline-flex;
  align-items: center;
  padding: .3rem .68rem;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .02em;
}
.status-pill.running { color: var(--green); background: color-mix(in srgb, var(--green) 12%, transparent); border: 1px solid color-mix(in srgb, var(--green) 30%, transparent); }
.status-pill.stopped { color: var(--text-muted); background: var(--surface-raised); border: 1px solid var(--border); }
.status-pill .status-dot { margin-right: .45rem; }

.connect-address {
  font-family: "IBM Plex Mono", monospace;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
  border-radius: 8px;
  padding: .12rem .5rem;
}

.action-row { display: flex; gap: .55rem; flex-wrap: wrap; margin-top: 1rem; }
.room-hero .action-row { justify-content: flex-end; margin-top: 0; }

.room-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 1.5rem; align-items: start; }
.room-grid > .panel { min-width: 0; }
.console-panel { grid-column: 1 / -1; }

table { width: 100%; border-collapse: collapse; font-size: .86rem; }
th, td { text-align: left; padding: .72rem .55rem; border-bottom: 1px solid var(--border); }
th { color: var(--text-muted); font-weight: 500; font-size: .8rem; letter-spacing: .04em; }
tbody tr { transition: background .18s; }
tbody tr:hover { background: color-mix(in srgb, var(--accent) 5%, transparent); }
td .action-row { margin: 0; }

.console {
  background: linear-gradient(160deg, #0a141b, #0d1a22);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.05rem;
  font: .8rem/1.6 "IBM Plex Mono", monospace;
  white-space: pre-wrap;
  max-height: 320px;
  overflow: auto;
  color: #b9e8df;
  box-shadow: inset 0 0 34px rgba(45, 212, 191, .06);
}

/* ---------- Admin stats ---------- */

.stat-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-bottom: 1.5rem; }
.stat {
  position: relative;
  overflow: hidden;
  padding: 1.15rem 1.25rem;
  background: var(--surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-soft);
}
.stat::after {
  content: "";
  position: absolute;
  inset: auto -30% -60% auto;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-soft), transparent 70%);
  pointer-events: none;
}
.stat .value { font: 600 1.9rem "Fraunces", serif; line-height: 1.2; }
.stat .label { color: var(--text-muted); font-size: .8rem; }

/* ---------- Home：交流群 & 捐赠 ---------- */

.support-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 1.5rem;
  align-items: stretch;
}
.support-grid .panel { margin-bottom: 0; }

.section-title {
  display: flex;
  align-items: center;
  gap: .7rem;
  margin: 2.4rem 0 1.1rem;
  font: 600 1.35rem "Fraunces", serif;
  letter-spacing: -.015em;
}
.section-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border-strong), transparent);
}
.section-title .glyph { color: var(--gold); font-size: 1.05rem; }

.qq-card {
  display: flex;
  flex-direction: column;
  gap: .35rem;
}
.qq-number-row { display: flex; align-items: center; gap: .8rem; flex-wrap: wrap; margin: .5rem 0 .9rem; }
.qq-number {
  font: 600 clamp(1.7rem, 3.4vw, 2.3rem) "IBM Plex Mono", monospace;
  letter-spacing: .06em;
  background: linear-gradient(120deg, var(--accent) 15%, var(--gold) 85%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.copy-btn { padding: .42rem .8rem; font-size: .8rem; }
.copied-hint { color: var(--green); font-size: .82rem; opacity: 0; transition: opacity .25s; }
.copied-hint.show { opacity: 1; }

.quote {
  margin: auto 0 0;
  padding: .9rem 1.1rem;
  border-left: 3px solid color-mix(in srgb, var(--gold) 60%, transparent);
  border-radius: 0 12px 12px 0;
  background: var(--gold-soft);
  color: var(--text-muted);
  font-family: "Fraunces", serif;
  font-style: italic;
  font-size: .95rem;
}

.donate-card { display: flex; flex-direction: column; align-items: center; text-align: center; }
.qr-frame {
  position: relative;
  padding: .55rem;
  border-radius: 20px;
  background: linear-gradient(150deg, color-mix(in srgb, var(--accent) 45%, transparent), var(--gold-soft));
  box-shadow: var(--glow);
  transition: transform .3s, box-shadow .3s;
}
.donate-card:hover .qr-frame { transform: translateY(-3px) scale(1.01); box-shadow: 0 0 48px rgba(45, 212, 191, .38); }
.qr-frame img {
  display: block;
  width: 190px;
  max-width: 100%;
  border-radius: 14px;
  background: #fff;
}
.donate-note { margin: .9rem 0 0; color: var(--text-muted); font-size: .86rem; }
.donate-heart { color: var(--red); }

/* ---------- Footer ---------- */

.site-footer {
  margin-top: 2.5rem;
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-solid) 55%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 1.6rem 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
  color: var(--text-muted);
  font-size: .84rem;
}
.footer-inner p { margin: 0; }
.footer-inner .glyph { color: var(--gold); }
.footer-links { display: flex; gap: 1.1rem; flex-wrap: wrap; }

/* ---------- Login & error cards ---------- */

.login-card, .error-card {
  max-width: 400px;
  margin: 3rem auto 4rem;
  text-align: left;
}
.error-card { text-align: center; }
.error-card h2 { margin: 0; }
.error-glyph {
  display: block;
  margin-bottom: .6rem;
  color: var(--gold);
  font-size: 2rem;
  animation: twinkle 3.4s ease-in-out infinite;
}

/* ---------- Misc ---------- */

.error-banner {
  background: color-mix(in srgb, var(--red) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--red) 55%, transparent);
  color: var(--red);
  padding: 1.05rem 1.2rem;
  border-radius: 14px;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-soft);
}

.sound-toggle { white-space: nowrap; font-size: .78rem; padding: .45rem .72rem; }

.download-error { color: var(--red); margin: .35rem 0 0; }

.mod-warning {
  margin: 0 0 1rem;
  padding: .8rem 1rem;
  border-radius: 12px;
  background: var(--gold-soft);
  border: 1px solid color-mix(in srgb, var(--gold) 40%, transparent);
  color: color-mix(in srgb, var(--text) 72%, var(--gold));
  font-size: .85rem;
}

@keyframes rise-in {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px color-mix(in srgb, var(--green) 16%, transparent); }
  50% { box-shadow: 0 0 0 6px color-mix(in srgb, var(--green) 7%, transparent); }
}

@keyframes twinkle {
  0%, 100% { opacity: .25; transform: scale(.9); }
  50% { opacity: .9; transform: scale(1.15); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .support-grid { grid-template-columns: 1fr; }
}

@media (max-width: 800px) {
  .tagline { display: none; }
  .home-grid, .room-grid { grid-template-columns: 1fr; }
  .console-panel { grid-column: auto; }
  .room-hero { flex-direction: column; }
  .room-hero .action-row { justify-content: flex-start; }
}

@media (max-width: 560px) {
  .header-inner { align-items: flex-start; flex-direction: column; }
  .header-actions { width: 100%; justify-content: space-between; }
  main { padding: 1.25rem 1rem 2rem; }
  .welcome { padding: 1.6rem 1.3rem; }
  .panel { padding: 1.25rem; }
  .theme-switcher button span { display: none; }
  .room-row { align-items: flex-start; flex-direction: column; }
  .room-row .btn { width: 100%; }
  .stat-strip { grid-template-columns: 1fr; gap: .6rem; }
  .stat { padding: .85rem 1rem; }
  .stat .value { font-size: 1.5rem; }
  table { display: block; overflow-x: auto; white-space: nowrap; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}