/* ============================================================
   Design Tokens
   ============================================================ */
:root {
  /* Fonts */
  --font-ui: "DM Sans", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", monospace;

  /* Core palette */
  --bg-page: #F7F3F2;
  --bg-surface: #FFFFFF;
  --bg-hover: #F7F3F2;
  --text-primary: #222326;
  --text-secondary: #878C8F;
  --text-muted: #B0ADAC;
  --border: #E2DEDD;
  --accent: #ED6033;

  /* Level: ERROR */
  --error-bg: #FDF5F4;
  --error-border: #F5C5C1;
  --error-text: #A82822;
  --error-badge-bg: #F5C5C1;
  --error-accent: #E13D33;

  /* Level: WARNING */
  --warn-bg: #FFFCF0;
  --warn-border: #FFE8A3;
  --warn-text: #8C6000;
  --warn-badge-bg: #FFE8A3;
  --warn-accent: #FFAE00;

  /* Level: INFO */
  --info-badge-bg: #D6EDF7;
  --info-text: #2F5C75;
  --info-border: #B8DDED;
  --info-bg: #EFF7FB;

  /* Level: DEBUG */
  --debug-badge-bg: #E2DEDD;
  --debug-text: #6B6E71;

  /* Status: healthy */
  --healthy-dot: #5DC6AD;
  --healthy-bg: #EEF9F6;
  --healthy-text: #2F7264;

  /* Status: idle */
  --idle-dot: #B0ADAC;
}

/* ============================================================
   Reset & Base
   ============================================================ */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  overflow: hidden;
  font-family: var(--font-ui);
  background: var(--bg-page);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}

ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input { font-family: inherit; }

/* ============================================================
   API Key Modal
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(34, 35, 38, 0.45);
  backdrop-filter: blur(4px);
}

.modal-card {
  background: var(--bg-surface);
  border-radius: 12px;
  padding: 40px;
  width: 380px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

.modal-logo {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-ui);
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 4px;
}

.modal-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.modal-desc {
  font-size: 13px;
  color: var(--text-secondary);
  text-align: center;
}

.modal-input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-page);
  outline: none;
  transition: border-color 0.15s;
}

.modal-input:focus {
  border-color: var(--accent);
}

.modal-error {
  font-size: 12px;
  color: var(--error-text);
  text-align: center;
}

.modal-button {
  width: 100%;
  padding: 10px;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
}

.modal-button:hover {
  opacity: 0.9;
}

/* ============================================================
   App Shell
   ============================================================ */
.app {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

/* ============================================================
   Header
   ============================================================ */
.header {
  height: 56px;
  min-height: 56px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.header-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.badge-beta {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-page);
  padding: 2px 8px;
  border-radius: 999px;
}

.header-spacer {
  flex: 1 1 0%;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-page);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 14px;
}

.search-icon {
  flex-shrink: 0;
}

.search-input {
  border: none;
  background: transparent;
  font-size: 13px;
  color: var(--text-primary);
  outline: none;
  width: 120px;
}

.search-input::placeholder {
  color: var(--text-secondary);
}

.search-kbd {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 1px 5px;
  flex-shrink: 0;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.live-indicator {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--healthy-bg);
  border-radius: 6px;
  padding: 6px 10px;
}

.live-indicator.disconnected {
  background: var(--bg-page);
}

.live-indicator.disconnected .live-dot {
  background: var(--idle-dot);
}

.live-indicator.disconnected .live-text {
  color: var(--text-secondary);
}

.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--healthy-dot);
}

.live-text {
  font-size: 12px;
  font-weight: 500;
  color: var(--healthy-text);
}

.avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ============================================================
   Body (Sidebar + Main)
   ============================================================ */
.body {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: clip;
}

/* ============================================================
   Sidebar
   ============================================================ */
.sidebar {
  width: 240px;
  min-width: 240px;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  overflow-y: auto;
}

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

.sidebar-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Sources */
.source-list {
  display: flex;
  flex-direction: column;
}

.source-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.1s;
}

.source-item:hover {
  background: var(--bg-hover);
}

.source-item.active {
  background: var(--bg-page);
}

.source-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.source-dot--healthy {
  background: var(--healthy-dot);
}

.source-dot--idle {
  background: var(--idle-dot);
}

.source-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.source-count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.source-item--idle .source-name {
  color: var(--text-secondary);
}

.source-item--idle .source-count {
  color: var(--text-muted);
}

/* Levels */
.level-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.level-pill {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid;
  font-size: 12px;
  font-weight: 500;
  transition: background 0.1s;
}

.level-pill .level-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.level-pill .level-count {
  font-family: var(--font-mono);
  font-size: 10px;
}

/* ERROR */
.level-pill--error {
  border-color: var(--error-border);
  color: var(--error-text);
  background: var(--error-bg);
}
.level-pill--error .level-dot { background: var(--error-accent); }
.level-pill--error.active { background: var(--bg-surface); }

/* WARNING */
.level-pill--warning {
  border-color: var(--warn-border);
  color: var(--warn-text);
  background: var(--warn-bg);
}
.level-pill--warning .level-dot { background: var(--warn-accent); }
.level-pill--warning.active { background: var(--bg-surface); }

/* INFO */
.level-pill--info {
  border-color: var(--info-border);
  color: var(--info-text);
  background: var(--info-bg);
}
.level-pill--info .level-dot { background: #5DA3C6; }
.level-pill--info.active { background: var(--bg-surface); }

/* DEBUG */
.level-pill--debug {
  border-color: var(--border);
  color: var(--debug-text);
  background: #F0ECEB;
}
.level-pill--debug .level-dot { background: #878C8F; }
.level-pill--debug.active { background: var(--bg-surface); }

/* Time Range */
.time-range-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.time-range-item {
  padding: 7px 10px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 400;
  color: var(--text-primary);
  cursor: pointer;
  transition: background 0.1s;
}

.time-range-item:hover {
  background: var(--bg-hover);
}

.time-range-item.active {
  background: var(--bg-page);
  font-weight: 500;
}

/* ============================================================
   Main Content
   ============================================================ */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* Table Header */
.table-header {
  display: flex;
  align-items: center;
  padding: 10px 20px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.col {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.col-timestamp { width: 140px; flex-shrink: 0; }
.col-level { width: 64px; flex-shrink: 0; }
.col-source { width: 130px; flex-shrink: 0; }
.col-message { flex: 1; min-width: 0; }

/* Log Container */
.log-container {
  flex: 1;
  overflow-y: auto;
  background: var(--bg-surface);
}

.log-table {
  display: flex;
  flex-direction: column;
}

/* Log Row */
.log-row {
  display: flex;
  align-items: flex-start;
  padding: 9px 20px;
  border-bottom: 1px solid var(--border);
  border-left: 3px solid transparent;
  cursor: pointer;
  transition: background 0.1s;
}

.log-row:hover {
  filter: brightness(0.98);
}

.log-row--error {
  background: var(--error-bg);
  border-bottom-color: var(--error-border);
  border-left-color: var(--error-accent);
}

.log-row--warning {
  background: var(--warn-bg);
  border-left-color: var(--warn-accent);
}

.log-row--info {
  background: var(--bg-surface);
}

.log-row--debug {
  background: var(--bg-surface);
}

.log-row--debug .log-timestamp,
.log-row--debug .log-source,
.log-row--debug .log-message {
  color: var(--text-muted);
}

.log-timestamp {
  width: 140px;
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
}

.log-level {
  width: 64px;
  flex-shrink: 0;
  overflow: hidden;
}

.log-level-badge {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 600;
  border-radius: 2px;
  padding: 1px 6px;
}

.log-level-badge--error {
  background: var(--error-badge-bg);
  color: var(--error-text);
}

.log-level-badge--warning {
  background: var(--warn-badge-bg);
  color: var(--warn-text);
}

.log-level-badge--info {
  background: var(--info-badge-bg);
  color: var(--info-text);
}

.log-level-badge--debug {
  background: var(--debug-badge-bg);
  color: var(--debug-text);
}

.log-source {
  width: 130px;
  flex-shrink: 0;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.log-message {
  flex: 1;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: #6B6E71;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.log-row--error .log-message {
  color: var(--error-text);
}

/* Expanded Row */
.log-row-expanded {
  padding: 0 20px 12px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-page);
  display: none;
}

.log-row-expanded.open {
  display: block;
}

.log-row-expanded pre {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px;
  margin-top: 8px;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

/* SSE new-row animation */
.log-row.log-row--new {
  animation: flash-in 0.4s ease-out;
}

@keyframes flash-in {
  0% { background-color: rgba(237, 96, 51, 0.08); }
  100% { background-color: inherit; }
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 20px;
  gap: 8px;
}

.empty-icon {
  font-size: 36px;
  opacity: 0.4;
}

.empty-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.empty-desc {
  font-size: 13px;
  color: var(--text-secondary);
}

/* Loading More */
.loading-more {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px;
  font-size: 12px;
  color: var(--text-secondary);
}

.loading-spinner {
  width: 14px;
  height: 14px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============================================================
   Status Bar
   ============================================================ */
.status-bar {
  height: 36px;
  min-height: 36px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 8px 20px;
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.status-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
}

.stat-errors {
  color: var(--error-text);
}

.stat-warnings {
  color: var(--warn-text);
}

.stat-divider {
  width: 1px;
  height: 14px;
  background: var(--border);
}

.status-right {
  margin-left: auto;
}

.streaming-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--healthy-text);
}

.streaming-indicator.disconnected {
  color: var(--text-secondary);
}

.streaming-indicator.disconnected .streaming-dot {
  background: var(--idle-dot);
}

.streaming-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--healthy-dot);
}

/* ============================================================
   Utility
   ============================================================ */
[hidden] {
  display: none !important;
}