/* ──────────────────────────────────────────
   熱搜雲 · 全域樣式
   ────────────────────────────────────────── */

:root {
  --bg-0: #050618;
  --bg-1: #0a0a2a;
  --bg-2: #1a0a3a;
  --accent: #4ad8ff;
  --accent-2: #ff5ed1;
  --accent-3: #ffd84a;
  --text: #f5f7ff;
  --text-dim: #9fa6c8;
  --card: rgba(20, 22, 60, 0.55);
  --card-border: rgba(120, 140, 255, 0.18);
  --danger: #ff5566;
}

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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: radial-gradient(ellipse at 20% 10%, #1a0a3a 0%, #050618 55%, #000004 100%);
  color: var(--text);
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

button, input, textarea {
  font-family: inherit;
  color: inherit;
  border: none;
  outline: none;
}

#starfield {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.page {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
}

.hidden { display: none !important; }

/* ──────────────────────────────────────────
   入口頁
   ────────────────────────────────────────── */
.home-wrap {
  width: 100%; height: 100%;
  display: flex; flex-direction: column;
  justify-content: center; align-items: center;
  padding: 24px;
}
.home-title {
  font-size: clamp(48px, 9vw, 96px);
  font-weight: 900;
  letter-spacing: 0.08em;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 60%, var(--accent-3) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 60px rgba(74, 216, 255, 0.35);
  margin-bottom: 8px;
}
.home-subtitle {
  font-size: clamp(14px, 1.8vw, 20px);
  color: var(--text-dim);
  margin-bottom: 48px;
  letter-spacing: 0.15em;
}
.home-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 280px));
  gap: 18px;
  max-width: 600px;
  width: 100%;
}
.home-btn {
  display: flex; flex-direction: column;
  padding: 24px 22px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  backdrop-filter: blur(12px);
  text-decoration: none; color: var(--text);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
  cursor: pointer;
}
.home-btn:hover {
  transform: translateY(-3px);
  border-color: rgba(74, 216, 255, 0.55);
  box-shadow: 0 12px 40px rgba(74, 216, 255, 0.18);
}
.home-btn-icon {
  font-size: 32px;
  color: var(--accent);
  margin-bottom: 10px;
}
.home-btn-title {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 4px;
}
.home-btn-desc {
  font-size: 13px;
  color: var(--text-dim);
}
.home-foot {
  margin-top: 36px;
  color: var(--text-dim);
  font-size: 13px;
}
#home-status.online { color: #6effc4; }
#home-status.offline { color: var(--danger); }

@media (max-width: 520px) {
  .home-grid { grid-template-columns: 1fr; max-width: 360px; }
}

/* ──────────────────────────────────────────
   投稿頁
   ────────────────────────────────────────── */
.submit-wrap {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  overflow-y: auto;
}
.submit-card {
  width: 100%; max-width: 480px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 18px;
  backdrop-filter: blur(14px);
  padding: 28px 24px;
  box-shadow: 0 16px 60px rgba(0, 0, 0, 0.4);
}
.submit-label {
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.18em;
  margin-bottom: 8px;
}
.submit-question {
  font-size: clamp(22px, 5vw, 28px);
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 22px;
  color: var(--text);
}
.submit-input {
  width: 100%;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 16px;
  font-size: 17px;
  line-height: 1.55;
  color: var(--text);
  resize: vertical;
  min-height: 110px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.submit-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(74, 216, 255, 0.18);
}
.submit-meter {
  text-align: right;
  color: var(--text-dim);
  font-size: 12px;
  margin: 6px 4px 18px;
}
.submit-btn {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  color: #06061a;
  font-size: 18px;
  font-weight: 800;
  border-radius: 12px;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}
.submit-btn:hover { box-shadow: 0 12px 40px rgba(255, 94, 209, 0.35); }
.submit-btn:active { transform: scale(0.98); }
.submit-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.submit-msg {
  margin-top: 14px;
  text-align: center;
  font-size: 14px;
  min-height: 20px;
  transition: opacity 0.3s ease;
}
.submit-msg.success { color: #6effc4; }
.submit-msg.error { color: var(--danger); }
.submit-tip {
  text-align: center;
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 18px;
}

/* ──────────────────────────────────────────
   大螢幕顯示頁
   ────────────────────────────────────────── */
#page-display {
  display: flex;
  flex-direction: column;
}
.display-top {
  flex: 0 0 auto;
  padding: 22px 32px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
  z-index: 10;
}
.display-brand {
  font-size: 26px; font-weight: 900;
  letter-spacing: 0.15em;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.display-question {
  flex: 1;
  text-align: center;
  font-size: clamp(20px, 2.4vw, 32px);
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.04em;
}
.display-stat {
  display: flex; flex-direction: column; align-items: flex-end;
}
.stat-num {
  font-size: 38px; font-weight: 900;
  color: var(--accent);
  line-height: 1;
}
.stat-label {
  font-size: 12px; color: var(--text-dim);
  letter-spacing: 0.15em;
  margin-top: 2px;
}

/* 文字雲：扁平投影（billboard） */
/* 外層 .cloud-word 由 JS 每幀更新 transform / opacity / z-index（位置與景深） */
/* 內層 .cloud-word-inner 負責文字樣式與進場 / 脈動動畫，字本身永遠正向 */
.cloud-stage {
  flex: 1; position: relative;
  overflow: hidden;
}
.cloud-scene {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.cloud-word {
  position: absolute;
  left: 50%; top: 50%;
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
  will-change: transform, opacity;
}
.cloud-word-inner {
  display: inline-block;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: text-shadow 0.4s ease;
}
.cloud-word-inner.enter {
  animation: wordEnter 1.0s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.cloud-word-inner.pulse {
  animation: wordPulse 0.9s ease-out;
}
@keyframes wordEnter {
  0%   { opacity: 0; filter: blur(16px) brightness(2.4); transform: scale(0.35); }
  100% { opacity: 1; filter: blur(0) brightness(1);     transform: scale(1); }
}
@keyframes wordPulse {
  0%, 100% { filter: brightness(1); }
  50%      { filter: brightness(2.2) drop-shadow(0 0 18px currentColor); }
}

.display-bottom {
  flex: 0 0 auto;
  height: 56px;
  display: flex; align-items: center;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.55));
  border-top: 1px solid var(--card-border);
  overflow: hidden;
  z-index: 10;
}
.ticker-label {
  flex: 0 0 auto;
  padding: 0 18px;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--accent);
  border-right: 1px solid var(--card-border);
  height: 100%;
  display: flex; align-items: center;
}
.ticker-track {
  flex: 1; position: relative;
  height: 100%;
  overflow: hidden;
  white-space: nowrap;
}
.ticker-item {
  display: inline-block;
  padding: 0 32px;
  line-height: 56px;
  font-size: 18px;
  color: var(--text);
}
.ticker-item::before {
  content: '◆';
  color: var(--accent-2);
  margin-right: 12px;
  font-size: 12px;
}

/* ──────────────────────────────────────────
   QR 碼頁
   ────────────────────────────────────────── */
.qr-wrap {
  width: 100%; height: 100%;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 32px;
}
.qr-brand {
  font-size: 24px; font-weight: 900;
  letter-spacing: 0.2em;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 16px;
}
.qr-question {
  font-size: clamp(24px, 3.8vw, 40px);
  font-weight: 700;
  text-align: center;
  margin-bottom: 36px;
  max-width: 900px;
  line-height: 1.4;
}
.qr-box {
  background: #fff;
  padding: 22px;
  border-radius: 18px;
  box-shadow: 0 24px 80px rgba(74, 216, 255, 0.25);
  margin-bottom: 24px;
}
#qr-code img, #qr-code canvas {
  display: block;
}
.qr-hint {
  font-size: 18px;
  color: var(--text);
  margin-bottom: 6px;
}
.qr-url {
  font-size: 13px;
  color: var(--text-dim);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  letter-spacing: 0.05em;
}

/* ──────────────────────────────────────────
   控制台
   ────────────────────────────────────────── */
.admin-wrap {
  width: 100%; height: 100%;
  overflow-y: auto;
  padding: 28px 32px 60px;
}
.admin-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 22px;
  flex-wrap: wrap; gap: 16px;
}
.admin-head h1 {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: 0.08em;
}
.admin-tokenbox input {
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 14px;
  width: 220px;
}
.admin-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: 1100px;
}
.admin-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 20px;
  backdrop-filter: blur(10px);
}
.admin-card h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--accent);
  letter-spacing: 0.08em;
  display: flex; align-items: center; gap: 8px;
}
.gemini-badge {
  font-size: 11px;
  letter-spacing: 0.04em;
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 600;
}
.gemini-badge.on  { background: rgba(110, 255, 196, 0.15); color: #6effc4; border: 1px solid rgba(110, 255, 196, 0.4); }
.gemini-badge.off { background: rgba(255, 200, 80, 0.10); color: #ffd84a; border: 1px solid rgba(255, 200, 80, 0.35); }
.admin-card input[type="text"] {
  width: 100%;
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 15px;
  margin-bottom: 12px;
}
.admin-card-wide { grid-column: span 2; }
.admin-card-full { grid-column: span 2; }

.btn {
  padding: 10px 18px;
  border-radius: 10px;
  background: rgba(120, 140, 255, 0.18);
  border: 1px solid var(--card-border);
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}
.btn:hover { background: rgba(120, 140, 255, 0.32); }
.btn:active { transform: scale(0.97); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  color: #06061a;
  border: none;
}
.btn-danger {
  background: rgba(255, 85, 102, 0.18);
  border-color: rgba(255, 85, 102, 0.45);
  color: #ffb0b8;
}
.btn-danger:hover { background: rgba(255, 85, 102, 0.32); }

.admin-actions {
  display: flex; gap: 12px; flex-wrap: wrap;
}
.admin-msg {
  margin-top: 12px;
  font-size: 13px;
  color: var(--text-dim);
  min-height: 18px;
}

.admin-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.admin-stats > div {
  background: rgba(0,0,0,0.25);
  border-radius: 10px;
  padding: 14px;
  display: flex; flex-direction: column;
}
.stat-k {
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.12em;
}
.stat-v {
  font-size: 28px;
  font-weight: 800;
  color: var(--accent);
  margin-top: 4px;
}

.admin-list {
  list-style: none;
  max-height: 380px;
  overflow-y: auto;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  background: rgba(0,0,0,0.2);
}
.admin-list li {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid rgba(120, 140, 255, 0.08);
  gap: 12px;
}
.admin-list li:last-child { border-bottom: none; }
.admin-list .row-text {
  flex: 1;
  font-size: 14px;
  line-height: 1.4;
  word-break: break-all;
}
.admin-list .row-time {
  flex: 0 0 auto;
  font-size: 11px;
  color: var(--text-dim);
  font-family: ui-monospace, Menlo, monospace;
}
.admin-list .row-del {
  flex: 0 0 auto;
  background: transparent;
  color: var(--danger);
  font-size: 13px;
  padding: 4px 10px;
  border: 1px solid rgba(255, 85, 102, 0.3);
  border-radius: 6px;
  cursor: pointer;
}
.admin-list .row-del:hover { background: rgba(255, 85, 102, 0.15); }

@media (max-width: 720px) {
  .admin-grid { grid-template-columns: 1fr; }
  .admin-card-wide, .admin-card-full { grid-column: span 1; }
  .admin-stats { grid-template-columns: repeat(3, 1fr); }
}