/* ═══════════════════════════════════════
   ECRH Event Viewer – Light Theme
   ═══════════════════════════════════════ */
:root {
  --bg: #f5f1e8;
  --white: rgba(253, 251, 247, 0.92);
  --surface: #fdfbf7;
  --surface-alt: #f5f1e8;
  --surface-muted: #ece5da;
  --border: rgba(83, 71, 57, 0.16);
  --border-light: rgba(83, 71, 57, 0.1);
  --text: #181815;
  --text-2: #4f453a;
  --text-dim: #7c705f;
  --accent: #c6613f;
  --accent-light: #f3ddd2;
  --accent-soft: rgba(198, 97, 63, 0.12);
  --accent-hover: #d97757;
  --accent-ink: #8a4026;
  --danger: #b53333;
  --warning: #9b6a0d;
  --warning-light: #f6e6bf;
  --success: #2f7613;
  --success-light: #deedca;
  --shadow-card: 0 10px 30px rgba(73, 56, 37, 0.08);
  --mono: 'JetBrains Mono', 'Fira Code', monospace;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', sans-serif;
  --r: 18px;
  --r-sm: 10px;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }
body {
  font-family: var(--sans);
  background:
    radial-gradient(circle at top left, rgba(217, 119, 87, 0.14), transparent 26rem),
    linear-gradient(180deg, #fbf8f1 0%, var(--bg) 55%, #f1eadf 100%);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
}
#root { min-height: 100vh; display: flex; flex-direction: column; }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(124, 112, 95, 0.38); border-radius: 999px; }

/* ══ Header ══ */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  min-height: 64px;
  background: rgba(253, 251, 247, 0.88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  position: sticky;
  top: 0;
  z-index: 30;
  box-shadow: 0 10px 30px rgba(73, 56, 37, 0.06);
}

.header-brand {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.02em;
  position: relative;
  padding-left: 18px;
}
.header-brand::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 7px var(--accent-soft);
  transform: translateY(-50%);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
}

.shot-select {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  font-size: 14px;
  font-family: var(--mono);
  min-width: 120px;
  outline: none;
  background: var(--surface);
  cursor: pointer;
  color: var(--text);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.65);
}
.shot-select:focus {
  border-color: rgba(198, 97, 63, 0.42);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.btn {
  padding: 9px 18px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  background: rgba(253, 251, 247, 0.72);
  color: var(--text);
  transition: background 0.18s, color 0.18s, border-color 0.18s, transform 0.18s, box-shadow 0.18s;
}
.btn:hover {
  background: var(--surface-muted);
  transform: translateY(-1px);
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary {
  background: var(--accent);
  border-color: transparent;
  color: #fffaf6;
  box-shadow: 0 10px 24px rgba(198, 97, 63, 0.24);
}
.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
}

.nav-btn {
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  background: rgba(253, 251, 247, 0.72);
  color: var(--text-2);
  text-decoration: none;
  transition: background 0.18s, color 0.18s, border-color 0.18s;
}
.nav-btn:hover {
  background: var(--surface-muted);
  color: var(--text);
}
.nav-btn.active {
  background: var(--accent);
  border-color: transparent;
  color: #fffaf6;
  box-shadow: 0 4px 12px rgba(198, 97, 63, 0.2);
}

.nav-divider {
  width: 1px;
  height: 24px;
  background: var(--border);
  margin: 0 8px;
}

/* ══ Main ══ */
.main {
  flex: 1;
  width: min(100%, 1640px);
  margin: 0 auto;
  padding: 28px 24px 44px;
  overflow-y: auto;
}

.progress-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent-hover), transparent);
  background-size: 200% 100%;
  animation: shimmer 1.2s infinite;
  z-index: 50;
}
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }

/* ══ Card ══ */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r);
  margin-bottom: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(12px);
}

/* ══ Metadata Card ══ */
.meta-card { padding: 0; }
.meta-row {
  display: flex;
  align-items: stretch;
  border-bottom: 1px solid var(--border-light);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.42), transparent);
}
.meta-row:last-child { border-bottom: none; }
.meta-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 20px;
  border-right: 1px solid var(--border-light);
}
.meta-item:last-child { border-right: none; }
.meta-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.meta-value {
  font-size: 16px;
  font-family: var(--mono);
  font-weight: 700;
  color: var(--text);
}
.meta-value.accent {
  font-size: 28px;
  font-weight: 700;
  color: var(--accent-ink);
}
.meta-value.danger {
  color: var(--danger);
  font-weight: 700;
}

.card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-light);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.35), rgba(245, 241, 232, 0.75));
}

.card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}

.chart-info {
  font-size: 14px;
  color: var(--text-2);
  margin-left: auto;
}

.badge {
  font-size: 13px;
  font-weight: 600;
  background: var(--accent-soft);
  color: var(--accent-ink);
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid rgba(198, 97, 63, 0.18);
}

/* ══ Tab Bar ══ */
.tab-bar {
  display: flex;
  gap: 10px;
  padding: 12px 14px;
  background: var(--surface-alt);
  border-bottom: 1px solid var(--border-light);
}

.tab-btn {
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-2);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s;
}
.tab-btn:hover {
  color: var(--accent-ink);
  background: rgba(255, 255, 255, 0.72);
  border-color: var(--border);
}
.tab-btn.active {
  color: var(--accent-ink);
  background: var(--surface);
  border-color: rgba(198, 97, 63, 0.24);
  box-shadow: 0 4px 14px rgba(73, 56, 37, 0.08);
}

/* ══ Waveform Body ══ */
.waveform-body {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 720px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.22), rgba(245, 241, 232, 0.55));
}

/* ── Channel List ── */
.ch-list {
  border-right: 1px solid var(--border-light);
  overflow-y: auto;
  max-height: 720px;
  background: rgba(245, 241, 232, 0.72);
}

.ch-list-header {
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--surface-muted);
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  z-index: 1;
}

.ch-item {
  padding: 12px 16px;
  cursor: pointer;
  border-bottom: 1px solid var(--border-light);
  border-left: 3px solid transparent;
  transition: background 0.12s, border-color 0.12s;
}
.ch-item:hover { background: rgba(198, 97, 63, 0.06); }
.ch-item.active {
  background: linear-gradient(90deg, rgba(198, 97, 63, 0.12), rgba(243, 221, 210, 0.7));
  border-left-color: var(--accent);
}

.ch-name {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}
.ch-item.active .ch-name { color: var(--accent-ink); }

.ch-sub {
  display: block;
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 2px;
}

.ch-empty {
  padding: 24px;
  text-align: center;
  color: var(--text-dim);
  font-size: 13px;
}

/* ── Charts Area ── */
.charts-area {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--surface);
}

.echart-wave {
  width: 100%;
  height: 420px;
}

.fft-divider {
  padding: 8px 20px;
  background: var(--surface-alt);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}
.fft-divider-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.echart-fft {
  width: 100%;
  height: 260px;
}

.prog-inline {
  position: absolute;
  top: 0; left: 0; right: 0;
  z-index: 10;
}

.chart-empty {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  gap: 8px;
  font-size: 14px;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(253, 251, 247, 0.2), rgba(245, 241, 232, 0.65));
}

/* ══ Events Table ══ */
.empty-msg {
  padding: 24px;
  text-align: center;
  color: var(--text-dim);
  font-size: 13px;
}

.table-wrap { max-height: 340px; overflow: auto; }

.ev-table {
  width: 100%;
  border-collapse: collapse;
}

.ev-table th {
  position: sticky;
  top: 0;
  background: var(--surface-alt);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 10px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  z-index: 1;
}

.ev-table td {
  padding: 10px 18px;
  font-size: 14px;
  border-bottom: 1px solid var(--border-light);
  cursor: pointer;
}
.ev-table tr:hover td { background: rgba(198, 97, 63, 0.06); }
.ev-table tr.active td {
  background: var(--accent-soft);
}

.td-mono { font-family: var(--sans); font-size: 14px; font-weight: 700; color: var(--text); white-space: nowrap; }
.td-num  { font-family: var(--mono); font-size: 13px; text-align: right; }
.td-msg  { color: var(--text-2); font-size: 13px; max-width: 500px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.td-seq  { font-size: 13px; font-weight: 700; color: var(--text-dim); text-align: center; width: 42px; }

.type-badge {
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--r-sm);
  background: var(--accent-soft);
  border: 1px solid rgba(198, 97, 63, 0.18);
  color: var(--accent-ink);
}

.sev-badge {
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--r-sm);
}
.sev-info     { background: var(--accent-soft); color: var(--accent-ink); }
.sev-warning  { background: var(--warning-light); color: var(--warning); }
.sev-error    { background: #f4dada; color: #8f2828; }
.sev-critical { background: #ecc1be; color: #7c1616; }
.sev-normal   { background: var(--success-light); color: var(--success); }

/* ══ Event Details ══ */
.detail-panel {
  padding: 12px 20px 16px;
  border-top: 1px solid var(--border-light);
  background: linear-gradient(180deg, rgba(245, 241, 232, 0.82), rgba(249, 247, 241, 0.72));
}

.detail-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px 24px;
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid var(--border-light);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.5);
}

.detail-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.detail-value {
  font-size: 14px;
  color: var(--text);
  word-break: break-word;
}

.detail-value.highlight {
  font-weight: 700;
  color: var(--accent-ink);
}

.detail-empty {
  color: var(--text-dim);
  font-size: 14px;
  padding: 6px 0;
}

@media (max-width: 960px) {
  .waveform-body {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .ch-list {
    max-height: 280px;
    border-right: none;
    border-bottom: 1px solid var(--border-light);
  }
  .detail-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .header {
    align-items: flex-start;
    gap: 12px;
    padding: 16px 18px;
  }
  .header-right {
    width: 100%;
    flex-wrap: wrap;
  }
  .main {
    padding: 18px 14px 32px;
  }
  .meta-row {
    flex-direction: column;
  }
  .meta-item {
    border-right: none;
    border-bottom: 1px solid var(--border-light);
  }
  .meta-row:last-child .meta-item:last-child {
    border-bottom: none;
  }
  .card-header {
    flex-wrap: wrap;
  }
  .chart-info {
    margin-left: 0;
  }
  .tab-bar {
    flex-wrap: wrap;
  }
  .ev-table {
    min-width: 720px;
  }
  .detail-grid { grid-template-columns: 1fr; }
}