/* =========================================================
   国音 (Kuni-on) — Prototyp-Design
   Farben nach mikuni.dev. Dunkel ist Standard, Hell als Variante.
   Bare metal: nur CSS, keine Frameworks.
   ========================================================= */

:root {
  /* ----- Dunkel (Standard) ----- */
  --bg-0: #0a0612;
  --bg-1: #110a1f;
  --bg-2: #1a0f2e;
  --surface: #1e1334;
  --surface-2: #261942;
  --border: #3a2660;
  --border-hi: #553a8a;
  --text: #e8e0ff;
  --text-dim: #a89ccc;
  --text-mute: #6e6190;
  --pink: #ff4fa3;
  --pink-soft: #ff7ebd;
  --cyan: #5ce1ff;
  --cyan-soft: #8ee9ff;
  --violet: #a070ff;
  --grad-magic: linear-gradient(135deg, #ff4fa3 0%, #a070ff 50%, #5ce1ff 100%);
  --grad-soft: linear-gradient(135deg, rgba(255,79,163,.15), rgba(92,225,255,.15));
  --shadow-glow: 0 0 24px rgba(255,79,163,.35), 0 0 60px rgba(160,112,255,.2);
  --shadow-soft: 0 8px 30px rgba(0,0,0,.35);
  --glass-bg: rgba(30,19,52,.55);
  --glass-brd: rgba(255,255,255,.08);
  --star: #ffffff;
  --star-op: .9;
  --radius: 14px;
  --radius-sm: 10px;
  --font-display: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-body: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --ease: cubic-bezier(.4, 0, .2, 1);
}

/* ----- Hell ----- */
:root[data-theme="light"] {
  --bg-0: #f5f0fb;
  --bg-1: #ece3f7;
  --bg-2: #e4d7f3;
  --surface: #ffffff;
  --surface-2: #f6f0fc;
  --border: #e0d0f2;
  --border-hi: #c8aae8;
  --text: #241635;
  --text-dim: #6a5a86;
  --text-mute: #998bb5;
  --grad-soft: linear-gradient(135deg, rgba(255,79,163,.10), rgba(92,225,255,.10));
  --shadow-glow: 0 0 20px rgba(255,79,163,.22), 0 0 50px rgba(160,112,255,.14);
  --shadow-soft: 0 8px 30px rgba(120,90,180,.18);
  --glass-bg: rgba(255,255,255,.6);
  --glass-brd: rgba(120,80,180,.14);
  --star: #b79bff;
  --star-op: .5;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  font-family: var(--font-body);
  background: var(--bg-0);
  color: var(--text);
  line-height: 1.6;
  overflow: hidden;
  background-image:
    radial-gradient(ellipse at 15% 10%, rgba(255,79,163,.15), transparent 50%),
    radial-gradient(ellipse at 85% 30%, rgba(92,225,255,.12), transparent 55%),
    radial-gradient(ellipse at 50% 90%, rgba(160,112,255,.18), transparent 60%),
    linear-gradient(180deg, var(--bg-0), var(--bg-1));
  background-attachment: fixed;
}

/* fein verstreute Sterne */
body::before {
  content: '';
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(2px 2px at 20% 30%, var(--pink-soft), transparent),
    radial-gradient(2px 2px at 60% 70%, var(--cyan-soft), transparent),
    radial-gradient(1.5px 1.5px at 80% 20%, var(--violet), transparent),
    radial-gradient(1.5px 1.5px at 35% 85%, var(--pink), transparent),
    radial-gradient(1px 1px at 75% 55%, var(--star), transparent);
  opacity: var(--star-op);
  animation: float 18s var(--ease) infinite alternate;
}
@keyframes float {
  from { transform: translateY(0) translateX(0); }
  to   { transform: translateY(-14px) translateX(8px); }
}

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

/* ---------- Glass ---------- */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(18px) saturate(1.3);
  -webkit-backdrop-filter: blur(18px) saturate(1.3);
  border: 1px solid var(--glass-brd);
}

/* ---------- Buttons ---------- */
.btn {
  font: inherit; cursor: pointer; border: 0;
  border-radius: var(--radius-sm);
  padding: .8rem 1.4rem; color: var(--text);
  transition: transform .15s var(--ease), box-shadow .2s var(--ease), filter .2s var(--ease);
}
.btn:active { transform: translateY(1px) scale(.99); }
.btn-primary {
  background: var(--grad-magic); color: #fff; font-weight: 600;
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover { filter: brightness(1.08); box-shadow: var(--shadow-glow), 0 6px 20px rgba(0,0,0,.3); }

.icon-btn, .theme-toggle {
  font: inherit; cursor: pointer; color: var(--text-dim);
  background: transparent; border: 1px solid transparent;
  border-radius: var(--radius-sm); width: 2.2rem; height: 2.2rem;
  display: grid; place-items: center; font-size: 1.1rem;
  transition: color .2s, background .2s, border-color .2s;
}
.icon-btn:hover, .theme-toggle:hover { color: var(--text); background: var(--surface-2); border-color: var(--border); }

/* =========================================================
   LOGIN
   ========================================================= */
.login {
  position: relative; z-index: 1;
  height: 100%; display: grid; place-items: center; padding: 1.5rem;
}
.login-card {
  position: relative;
  width: min(92vw, 380px);
  padding: 2.4rem 2rem 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  text-align: center;
}
.brand { display: flex; flex-direction: column; align-items: center; gap: .1rem; margin-bottom: .4rem; }
.brand-mark {
  font-size: 2.6rem; font-weight: 700; letter-spacing: 2px;
  background: var(--grad-magic); -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.brand-sub { color: var(--text-mute); letter-spacing: 4px; text-transform: uppercase; font-size: .72rem; }
.login-hint { color: var(--text-dim); font-size: .92rem; margin: 1rem 0 1.4rem; }
#login-form { display: flex; flex-direction: column; gap: .8rem; }
input[type="text"] {
  font: inherit; width: 100%; padding: .8rem 1rem; color: var(--text);
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm); outline: none;
  transition: border-color .2s, box-shadow .2s;
}
input[type="text"]::placeholder { color: var(--text-mute); }
input[type="text"]:focus { border-color: var(--pink); box-shadow: 0 0 0 3px rgba(255,79,163,.18); }
.theme-toggle { position: absolute; top: .8rem; right: .8rem; }

/* =========================================================
   APP-LAYOUT
   ========================================================= */
.app { position: relative; z-index: 1; height: 100%; display: grid; grid-template-columns: 264px 1fr; }

/* ---------- Sidebar ---------- */
.sidebar {
  display: flex; flex-direction: column; gap: .4rem;
  padding: 1rem .8rem; border-right: 1px solid var(--glass-brd);
  border-radius: 0; overflow: hidden;
}
.server-head { display: flex; align-items: center; gap: .7rem; padding: .3rem .4rem .9rem; }
.server-avatar {
  width: 44px; height: 44px; border-radius: 12px; flex: none;
  display: grid; place-items: center; font-weight: 700; color: #fff;
  background: var(--grad-magic); box-shadow: var(--shadow-glow);
}
.server-name { font-weight: 600; font-size: 1.05rem; }

.channels { display: flex; flex-direction: column; gap: .25rem; overflow-y: auto; flex: 1; padding-right: .2rem; }
.channel {
  display: flex; align-items: center; gap: .6rem; text-align: left;
  font: inherit; cursor: pointer; color: var(--text-dim);
  background: transparent; border: 1px solid transparent;
  border-radius: var(--radius-sm); padding: .55rem .6rem;
  transition: background .18s, color .18s, border-color .18s;
}
.channel:hover { background: var(--surface); color: var(--text); }
.channel.active { background: var(--grad-soft); color: var(--text); border-color: var(--border-hi); }
.channel-ico { font-size: 1rem; opacity: .85; }
.channel-text { display: flex; flex-direction: column; line-height: 1.2; min-width: 0; }
.channel-name { font-weight: 600; font-size: .95rem; }
.channel-topic { font-size: .72rem; color: var(--text-mute); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* Nutzer-Panel unten */
.me-panel {
  display: flex; align-items: center; gap: .6rem;
  padding: .6rem; margin-top: .3rem;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.me-bubble { width: 38px; height: 38px; flex: none; font-size: .95rem; }
.me-info { flex: 1; min-width: 0; }
.me-name { font-weight: 600; font-size: .9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.me-state { font-size: .72rem; color: var(--text-mute); }

/* ---------- Stage ---------- */
.stage { display: flex; flex-direction: column; min-width: 0; padding: 1.4rem 1.6rem; }
.stage-head { margin-bottom: 1.2rem; }
.stage-title { font-size: 1.5rem; font-weight: 700; }
.stage-title::before { content: '🔊 '; font-size: 1.1rem; }
.stage-topic { color: var(--text-dim); font-size: .92rem; }

.bubbles {
  flex: 1; display: flex; flex-wrap: wrap; align-content: flex-start;
  gap: 1.2rem; overflow-y: auto; padding: .4rem;
}

/* ---------- Liquid-Glass Bubbles ---------- */
.bubble {
  position: relative; display: grid; place-items: center;
  color: #fff; font-weight: 700; user-select: none;
  border-radius: 50%;
  background: var(--grad-magic);
  box-shadow: var(--shadow-soft), inset 0 0 18px rgba(255,255,255,.25);
  isolation: isolate;
}
/* wabernder Glas-Schimmer */
.bubble::before {
  content: ''; position: absolute; inset: -2px; border-radius: 50%;
  background: conic-gradient(from 0deg, var(--pink), var(--cyan), var(--violet), var(--pink));
  filter: blur(7px); opacity: .55; z-index: -1;
  animation: liquid 7s var(--ease) infinite;
}
@keyframes liquid {
  0%,100% { transform: scale(1) rotate(0deg); border-radius: 48% 52% 55% 45%; }
  33%     { transform: scale(1.04) rotate(6deg); border-radius: 55% 45% 48% 52%; }
  66%     { transform: scale(.98) rotate(-5deg); border-radius: 45% 55% 52% 48%; }
}

.person { display: flex; flex-direction: column; align-items: center; gap: .5rem; width: 116px; }
.person .bubble { width: 92px; height: 92px; font-size: 2rem; transition: box-shadow .2s, transform .2s; }
.person .p-name {
  font-size: .88rem; font-weight: 600; color: var(--text);
  max-width: 116px; text-align: center; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.person .p-tag { font-size: .7rem; color: var(--text-mute); }

/* spricht gerade → leuchtet */
.person.speaking .bubble { box-shadow: var(--shadow-glow); transform: scale(1.06); }
/* selbst stummgeschaltet */
.person.muted .bubble { filter: grayscale(.6) brightness(.8); }
.person.muted .bubble::after {
  content: '🔇'; position: absolute; bottom: -2px; right: -2px; font-size: .9rem;
  background: var(--surface); border-radius: 50%; padding: 1px 2px;
}

/* ---------- Controls ---------- */
.controls {
  display: flex; align-items: center; gap: .6rem;
  margin-top: 1rem; padding: .7rem; border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}
.ctrl {
  display: flex; align-items: center; gap: .5rem; font: inherit; cursor: pointer;
  color: var(--text); background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: .6rem .9rem;
  transition: background .18s, color .18s, border-color .18s, transform .1s;
}
.ctrl:hover { border-color: var(--border-hi); }
.ctrl:active { transform: translateY(1px); }
.ctrl[aria-pressed="true"] { background: var(--grad-soft); border-color: var(--pink); color: var(--pink-soft); }
.ctrl-ico { font-size: 1.1rem; }
.ctrl-label { font-size: .9rem; font-weight: 600; }
.ctrl-spacer { flex: 1; }
.ctrl-danger:hover { border-color: var(--pink); color: var(--pink); }

/* =========================================================
   View Transitions (cleane Übergänge ohne JS)
   ========================================================= */
@view-transition { navigation: auto; }
::view-transition-old(root),
::view-transition-new(root) { animation-duration: .35s; }

@media (prefers-reduced-motion: reduce) {
  body::before, .bubble::before { animation: none; }
}

/* ---------- klein / mobil ---------- */
@media (max-width: 720px) {
  .app { grid-template-columns: 1fr; grid-template-rows: auto 1fr; }
  .sidebar { flex-direction: row; flex-wrap: wrap; border-right: 0; border-bottom: 1px solid var(--glass-brd); }
  .channels { flex-direction: row; flex: 1 100%; order: 3; }
  .me-panel { order: 2; }
}