/* ============================================================
   FMO 副屏伴侣 — 样式表 v4
   三主题：dark (默认) / light / eink (墨水屏)
   新增：server-search 搜索框样式
   ============================================================ */

/* --- CSS Variables --- */
:root {
  --bg: #0D1117;
  --panel-bg: #161B22;
  --border: #21262D;
  --text-primary: #E6EDF3;
  --text-secondary: #8B949E;
  --accent: #00D9FF;
  --accent-glow: rgba(0, 217, 255, 0.15);
  --warn: #FFB000;
  --danger: #FF3E5C;
  --success: #3FB950;
  --font-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  --card-bg: rgba(255, 255, 255, 0.05);
  --card-border: rgba(255, 255, 255, 0.08);
  --card-divider: rgba(255, 255, 255, 0.08);
  --hero-glow: 0 0 32px rgba(255, 255, 255, 0.12);
  --radius: 8px;
  --transition: 0.3s ease;
}

[data-theme="light"] {
  --bg: #FFFFFF;
  --panel-bg: #F6F8FA;
  --border: #D0D7DE;
  --text-primary: #1F2328;
  --text-secondary: #656D76;
  --accent: #0969DA;
  --accent-glow: rgba(9, 105, 218, 0.08);
  --warn: #BF8700;
  --danger: #CF222E;
  --success: #1A7F37;
  --font-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  --card-bg: rgba(0, 0, 0, 0.04);
  --card-border: rgba(0, 0, 0, 0.08);
  --card-divider: rgba(0, 0, 0, 0.08);
  --hero-glow: none;
}

[data-theme="eink"] {
  --bg: #FFFFFF;
  --panel-bg: #FFFFFF;
  --border: #000000;
  --text-primary: #000000;
  --text-secondary: #000000;
  --accent: #000000;
  --accent-glow: transparent;
  --warn: #000000;
  --danger: #000000;
  --success: #000000;
  --font-base: 'Georgia', 'Times New Roman', serif;
  --font-mono: 'Courier New', 'Consolas', monospace;
  --card-bg: transparent;
  --card-border: #000000;
  --card-divider: #000000;
  --hero-glow: none;
  --transition: 0s;
}

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

html, body {
  height: 100%;
  overflow: hidden;
  font-family: var(--font-base);
  background: var(--bg);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* --- Layout --- */
.app-shell {
  display: flex;
  flex-direction: column;
  height: 100vh;
  padding: 8px;
  gap: 8px;
}

/* --- Status Bar --- */
.status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 48px;
  padding: 0 16px;
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  flex-shrink: 0;
}
.status-bar-left,
.status-bar-center,
.status-bar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}
.status-bar-left   { flex: 1; }
.status-bar-center { flex: 0 0 auto; justify-content: center; }
.status-bar-right  { flex: 1; justify-content: flex-end; }

.status-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--danger);
  transition: background var(--transition);
  flex-shrink: 0;
}
.status-dot.connected   { background: var(--success); }
.status-dot.connecting  { background: var(--warn); animation: pulse 1s infinite; }
.status-text { font-size: 13px; color: var(--text-secondary); }

.status-separator { color: var(--border); font-size: 14px; }
.status-server-label { font-size: 12px; color: var(--text-secondary); }
.status-server {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
}

.status-callsign {
  font-weight: 700;
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--accent);
  letter-spacing: 0.04em;
}
.status-grid {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-secondary);
}

.status-time { font-family: var(--font-mono); font-size: 13px; color: var(--text-secondary); }
.status-ip { font-size: 11px; color: var(--text-secondary); }

.mute-btn {
  background: none; border: 1px solid var(--border);
  color: var(--text-secondary); font-size: 16px;
  width: 30px; height: 30px; border-radius: 6px;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
  line-height: 1;
}
.mute-btn:hover { color: var(--accent); border-color: var(--accent); }
.mute-btn.muted { color: var(--danger); border-color: var(--danger); }

.settings-btn {
  background: none; border: 1px solid var(--border);
  color: var(--text-secondary); font-size: 16px;
  width: 30px; height: 30px; border-radius: 6px;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.settings-btn:hover { color: var(--accent); border-color: var(--accent); }

/* --- Dashboard Grid --- */
.dashboard {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 8px;
  flex: 1;
  min-height: 0;
}

/* --- Panel --- */
.panel {
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
}
.panel-title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: 12px;
  font-weight: 600;
  flex-shrink: 0;
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
}
.panel-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow-y: auto;
  min-height: 0;
}

/* --- Device Info Panel --- */
.panel-info {
  gap: 0;
}
.panel-info .info-hero {
  font-family: var(--font-mono);
  font-weight: 900;
  font-size: 54px;
  color: var(--text-primary);
  text-align: center;
  letter-spacing: 0.08em;
  line-height: 1;
  padding: 10px 0 14px 0;
  word-break: break-all;
  flex-shrink: 0;
  text-shadow: var(--hero-glow);
}
.panel-info .info-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1;
}
.panel-info .info-card-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 2px;
}
.panel-info .info-card-grid .info-card-value {
  color: var(--warn);
}
.panel-info .info-card-divider {
  height: 1px;
  background: var(--card-divider);
  margin: 4px 0 6px 0;
}
.panel-info .info-card-label {
  color: var(--text-secondary);
  font-size: 13px;
  flex-shrink: 0;
}
.panel-info .info-card-value {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 16px;
  color: var(--text-primary);
  text-align: right;
  word-break: break-all;
}

/* --- Stat Cards --- */
.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  flex-shrink: 0;
  margin-top: 8px;
}
.stat-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 16px 12px;
  text-align: center;
}
.stat-value {
  font-size: 40px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent);
  line-height: 1.1;
}
.stat-label {
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 6px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* --- Server Search --- */
.server-search {
  width: 100%;
  padding: 7px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
  flex-shrink: 0;
  margin-bottom: 4px;
  transition: border-color var(--transition);
}
.server-search::placeholder { color: var(--text-secondary); opacity: 0.6; }
.server-search:focus { border-color: var(--accent); }

/* --- Server List --- */
.server-list {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
}
.server-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: background var(--transition);
  border: 1px solid transparent;
  margin-bottom: 3px;
  font-size: 14px;
}
.server-item:hover {
  background: var(--bg);
  border-color: var(--border);
}
.server-item.active {
  background: var(--accent-glow);
  border-color: var(--accent);
}
.server-item-name { font-weight: 600; color: var(--text-primary); }
.server-item-count { font-family: var(--font-mono); font-size: 12px; color: var(--text-secondary); }
.server-item-check { color: var(--accent); font-weight: 700; margin-left: 8px; }
.server-list-empty { color: var(--text-secondary); text-align: center; padding: 24px; font-size: 14px; }

/* --- Speaking Bar --- */
.speaking-bar {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 7px;
  min-height: 90px;
  justify-content: center;
  align-items: center;
  flex-shrink: 0;
}
.speaking-bar.active {
  border-color: var(--warn);
  box-shadow: 0 0 20px var(--accent-glow);
}
.speaker-callsign {
  font-size: 28px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--warn);
}
.speaker-location { font-size: 15px; color: var(--text-secondary); }
.speaker-stats { font-size: 13px; color: var(--text-secondary); }
.vu-meter {
  width: 100%;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
  margin-top: 6px;
}
.vu-meter-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--success), var(--warn), var(--danger));
  border-radius: 3px;
  transition: width 0.08s linear;
}
.idle-text { color: var(--text-secondary); font-size: 14px; }

/* --- Speaking Bar 内布局 --- */
.speaking-bar-content {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}
.speaker-row-1 {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.speaker-elapsed {
  font-size: 13px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  margin-left: auto;
}
.speaker-badge {
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 3px;
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.3;
}
.speaker-badge.host {
  background: var(--warn);
  color: var(--bg);
}
.speaker-badge.self {
  background: var(--accent);
  color: var(--bg);
}
.speaker-badge.new-friend {
  background: transparent;
  border: 1px solid var(--warn);
  color: var(--warn);
}
.speaker-row-2 {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  flex-wrap: wrap;
}
.speaker-grid {
  color: var(--warn);
  font-family: var(--font-mono);
  font-size: 14px;
}
.speaker-stats-text {
  color: var(--text-secondary);
  font-size: 12px;
}

/* --- Speaker Extra (distance / azimuth) --- */
.speaker-extra {
  color: var(--text-secondary);
  font-size: 12px;
  font-family: var(--font-mono);
}

/* --- Mini Spectrum (FFT-style) --- */
.mini-spectrum {
  display: flex;
  align-items: flex-end;
  gap: 1px;
  height: 52px;
  margin-top: auto;
  flex-shrink: 0;
  padding: 0 2px;
}
.mini-spectrum .bar {
  flex: 1;
  min-width: 3px;
  border-radius: 2px 2px 0 0;
  min-height: 2px;
  transition: height 0.06s ease-out;
}

/* --- QSO List --- */
.qso-list {
  flex: 1;
  overflow-y: auto;
}
.qso-item {
  display: grid;
  grid-template-columns: 52px 1fr 72px auto;
  gap: 10px;
  align-items: center;
  padding: 7px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  transition: background var(--transition);
}
.qso-item:last-child { border-bottom: none; }
.qso-item.new-highlight {
  background: var(--accent-glow);
  animation: highlightFade 2s ease forwards;
}
.qso-logid { color: var(--text-secondary); font-family: var(--font-mono); font-size: 11px; }
.qso-callsign { font-family: var(--font-mono); font-weight: 600; }
.qso-grid { font-family: var(--font-mono); font-size: 12px; color: var(--text-secondary); }
.qso-time { font-size: 12px; color: var(--text-secondary); text-align: right; white-space: nowrap; }

/* --- Settings Panel --- */
.settings-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
  opacity: 0; pointer-events: none;
  transition: opacity var(--transition);
}
.settings-overlay.open { opacity: 1; pointer-events: auto; }
.settings-dialog {
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  width: 380px;
  max-width: 90vw;
}
.settings-dialog h2 { font-size: 16px; margin-bottom: 16px; color: var(--text-primary); }
.settings-field { margin-bottom: 12px; }
.settings-field label { display: block; font-size: 12px; color: var(--text-secondary); margin-bottom: 4px; }
.settings-field input,
.settings-field select {
  width: 100%;
  padding: 8px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 13px;
  outline: none;
  transition: border-color var(--transition);
}
.settings-field input:focus,
.settings-field select:focus { border-color: var(--accent); }
.settings-actions { display: flex; gap: 8px; margin-top: 16px; justify-content: flex-end; }
.btn {
  padding: 8px 16px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text-primary);
  cursor: pointer;
  font-size: 13px;
  transition: all var(--transition);
}
.btn:hover { border-color: var(--accent); }
.btn-primary { background: var(--accent); color: var(--bg); border-color: var(--accent); }

/* --- Theme Toggle --- */
.theme-toggle {
  background: none; border: 1px solid var(--border);
  color: var(--text-secondary); font-size: 12px;
  padding: 3px 10px; border-radius: 5px;
  cursor: pointer; transition: all var(--transition);
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); }

/* --- Animations --- */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
@keyframes highlightFade {
  0% { background: var(--accent-glow); }
  100% { background: transparent; }
}

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .stat-value { font-size: 32px; }
  .panel-info .info-value { font-size: 16px; }
}
@media (max-width: 768px) {
  .dashboard {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }
  .status-bar-center { display: none; }

  /* Speaking Bar mobile */
  .speaker-callsign { font-size: 22px; }
  .speaker-row-1 { gap: 6px; }
  .speaker-elapsed { margin-left: 0; }
  .speaker-row-2 {
    flex-direction: column;
    gap: 3px;
    align-items: flex-start;
  }
  .speaker-grid { font-size: 12px; }
  .speaker-stats-text { font-size: 11px; }
  .speaker-badge { font-size: 10px; padding: 1px 4px; }
  .speaker-extra { font-size: 11px; }
  .speaking-bar { padding: 10px; min-height: 78px; }
  .mini-spectrum { height: 36px; }

  /* Device info mobile */
  .info-hero { font-size: 38px; }
  .info-card-value { font-size: 14px; }
  .info-card-label { font-size: 11px; }
}