:root {
  --bg: #0f172a;
  --bg-soft: #111827;
  --panel: #1e293b;
  --panel-2: #334155;
  --text: #f8fafc;
  --muted: #94a3b8;
  --line: rgba(255, 255, 255, 0.08);
  --primary: #38bdf8;
  --primary-strong: #0ea5e9;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
  --radius: 18px;
  --radius-sm: 12px;
  --ball-size: 44px;
  --container: 1080px;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family:
    "Microsoft JhengHei",
    "PingFang TC",
    "Noto Sans TC",
    sans-serif;
  background:
    radial-gradient(circle at top, rgba(56, 189, 248, 0.1), transparent 30%),
    linear-gradient(180deg, #020617 0%, #0f172a 100%);
  color: var(--text);
  min-height: 100vh;
}

img {
  max-width: 100%;
  display: block;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
  border: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

.ball {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: var(--ball-size);
  height: var(--ball-size);
  padding: 0 10px;
  border-radius: 999px;
  background: linear-gradient(180deg, #38bdf8 0%, #0284c7 100%);
  color: #ffffff;
  font-weight: 800;
  font-size: 0.98rem;
  line-height: 1;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    0 6px 14px rgba(2, 132, 199, 0.28);
}

.empty {
  text-align: center;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  padding: 28px 16px;
}

.app-shell,
.v93-shell,
.page-shell,
.main-shell {
  width: min(100% - 24px, var(--container));
  margin: 0 auto;
  padding: 16px 0 36px;
}

.topbar,
.app-topbar,
.v93-topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 18px;
  margin-top: 10px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(15, 23, 42, 0.72);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}

.brand,
.app-brand,
.v93-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo,
.app-logo,
.v93-logo {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  font-weight: 900;
  color: white;
  background: linear-gradient(135deg, #0ea5e9, #2563eb);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.15),
    0 10px 24px rgba(37, 99, 235, 0.3);
}

.brand h1,
.app-brand h1,
.v93-brand h1 {
  margin: 0 0 4px;
  font-size: clamp(1.15rem, 2vw, 1.6rem);
  line-height: 1.2;
}

.brand p,
.app-brand p,
.v93-brand p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

.top-actions,
.app-top-actions,
.v93-top-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.grid,
.dashboard-grid,
.content-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 16px;
  margin-top: 16px;
}

.card {
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.95), rgba(15, 23, 42, 0.95));
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 18px;
  box-shadow: var(--shadow);
}

.card-title {
  font-size: 1.08rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.card-sub {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.5;
  margin-bottom: 14px;
}

.section-title {
  font-size: 1rem;
  font-weight: 800;
  margin: 0 0 12px;
}

.controls,
.control-panel,
.form-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field label {
  font-size: 0.92rem;
  color: var(--muted);
  font-weight: 700;
}

select,
input[type="text"],
input[type="number"],
input[type="search"] {
  width: 100%;
  min-height: 46px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  padding: 0 14px;
  outline: none;
  transition: 0.2s ease;
}

select:focus,
input[type="text"]:focus,
input[type="number"]:focus,
input[type="search"]:focus {
  border-color: rgba(56, 189, 248, 0.7);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.14);
}

.btn-row,
.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.btn,
button,
.app-btn,
.v93-btn,
.run-btn,
.primary-btn,
.secondary-btn,
.ghost-btn {
  min-height: 46px;
  padding: 0 16px;
  border-radius: 14px;
  color: white;
  font-weight: 800;
  letter-spacing: 0.2px;
  transition:
    transform 0.12s ease,
    opacity 0.12s ease,
    box-shadow 0.2s ease;
}

.btn:active,
button:active,
.app-btn:active,
.v93-btn:active,
.run-btn:active,
.primary-btn:active,
.secondary-btn:active,
.ghost-btn:active {
  transform: translateY(1px) scale(0.99);
}

.btn-primary,
.primary-btn,
#runPredictionBtn,
#relearnBtn {
  background: linear-gradient(180deg, #0ea5e9 0%, #0284c7 100%);
  box-shadow: 0 8px 18px rgba(2, 132, 199, 0.28);
}

.btn-secondary,
.secondary-btn,
#resetAiBtn {
  background: linear-gradient(180deg, #475569 0%, #334155 100%);
  box-shadow: 0 8px 18px rgba(51, 65, 85, 0.28);
}

.btn-ghost,
.ghost-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
}

.stats-grid,
.info-grid,
.summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.stat-card,
.info-card,
.summary-card {
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  padding: 14px;
}

.stat-label,
.info-label,
.summary-label {
  color: var(--muted);
  font-size: 0.88rem;
  margin-bottom: 6px;
}

.stat-value,
.info-value,
.summary-value {
  font-size: 1.12rem;
  font-weight: 900;
  word-break: break-word;
}

.set-list {
  display: grid;
  gap: 12px;
}

.set-item {
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  padding: 14px;
}

.set-title {
  font-size: 0.96rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: #e2e8f0;
}

.set-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 8px;
}

.set-area {
  min-width: 60px;
  color: var(--muted);
  font-size: 0.92rem;
  padding-top: 8px;
}

.set-balls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.panel-stack,
.side-stack {
  display: grid;
  gap: 16px;
}

.history-list,
.log-list,
.data-list {
  display: grid;
  gap: 10px;
}

.history-item,
.log-item,
.data-item {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 16px;
  padding: 12px;
}

.history-top,
.log-top,
.data-top {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.history-title,
.log-title,
.data-title {
  font-weight: 800;
  font-size: 0.94rem;
}

.history-time,
.log-time,
.data-time {
  color: var(--muted);
  font-size: 0.82rem;
}

.history-body,
.log-body,
.data-body {
  color: #e2e8f0;
  font-size: 0.9rem;
  line-height: 1.5;
}

.footer,
.app-footer,
.v93-footer {
  margin-top: 18px;
  padding: 16px 18px 28px;
  color: var(--muted);
  text-align: center;
  font-size: 0.9rem;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.12);
  color: #7dd3fc;
  border: 1px solid rgba(56, 189, 248, 0.22);
  font-size: 0.82rem;
  font-weight: 700;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  border-radius: 18px;
  border: 1px solid var(--line);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 560px;
  background: rgba(255, 255, 255, 0.03);
}

th,
td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  font-size: 0.92rem;
}

th {
  color: #cbd5e1;
  background: rgba(255, 255, 255, 0.04);
}

td {
  color: #e2e8f0;
}

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 16px 0;
}

#predictionOutput:empty::before {
  content: "尚未產生預測結果";
  display: block;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  padding: 26px 14px;
}

#appVersion,
[data-app-version] {
  font-weight: 800;
  color: #e2e8f0;
}

#latestUpdateTime {
  word-break: break-word;
}

#runPredictionBtn,
#relearnBtn,
#resetAiBtn {
  min-width: 120px;
}

@media (max-width: 980px) {
  .grid,
  .dashboard-grid,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .topbar,
  .app-topbar,
  .v93-topbar {
    flex-direction: column;
  }

  .top-actions,
  .app-top-actions,
  .v93-top-actions {
    width: 100%;
  }
}

@media (max-width: 720px) {
  :root {
    --ball-size: 40px;
  }

  .app-shell,
  .v93-shell,
  .page-shell,
  .main-shell {
    width: min(100% - 16px, var(--container));
    padding: 10px 0 28px;
  }

  .topbar,
  .app-topbar,
  .v93-topbar,
  .card {
    border-radius: 20px;
    padding: 14px;
  }

  .brand,
  .app-brand,
  .v93-brand {
    align-items: flex-start;
  }

  .logo,
  .app-logo,
  .v93-logo {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    font-size: 1rem;
  }

  .controls,
  .control-panel,
  .form-panel,
  .stats-grid,
  .info-grid,
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .btn-row,
  .action-row,
  .top-actions,
  .app-top-actions,
  .v93-top-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .btn,
  button,
  .app-btn,
  .v93-btn,
  .run-btn,
  .primary-btn,
  .secondary-btn,
  .ghost-btn,
  #runPredictionBtn,
  #relearnBtn,
  #resetAiBtn {
    width: 100%;
  }

  .set-row {
    flex-direction: column;
    gap: 8px;
  }

  .set-area {
    min-width: 0;
    padding-top: 0;
  }

  .set-balls {
    gap: 7px;
  }

  .ball {
    min-width: 40px;
    height: 40px;
    font-size: 0.92rem;
  }
}

@media (max-width: 420px) {
  :root {
    --ball-size: 36px;
  }

  .brand h1,
  .app-brand h1,
  .v93-brand h1 {
    font-size: 1.02rem;
  }

  .brand p,
  .app-brand p,
  .v93-brand p,
  .card-sub,
  .stat-label,
  .info-label,
  .summary-label {
    font-size: 0.84rem;
  }

  .card-title,
  .section-title {
    font-size: 0.98rem;
  }

  .ball {
    min-width: 36px;
    height: 36px;
    padding: 0 8px;
    font-size: 0.86rem;
  }

  th,
  td {
    padding: 10px 12px;
    font-size: 0.86rem;
  }
}