/* ================================================================
   Speech Annotator — app.css
   Palette: neutral grays, accent #2563eb (blue-600)
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --accent:          #2563eb;
  --accent-hover:    #1d4ed8;
  --accent-light:    #eff6ff;
  --sidebar-width:   240px;
  --sidebar-bg:      #ffffff;
  --sidebar-border:  #e5e7eb;
  --body-bg:         #f3f4f6;
  --card-bg:         #ffffff;
  --text-primary:    #111827;
  --text-secondary:  #6b7280;
  --text-muted:      #9ca3af;
  --border:          #e5e7eb;
  --border-input:    #d1d5db;
  --shadow-sm:       0 1px 3px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.05);
  --shadow:          0 4px 6px -1px rgba(0,0,0,.08), 0 2px 4px -2px rgba(0,0,0,.05);
  --radius:          8px;
  --radius-sm:       4px;
  --font-mono:       'IBM Plex Mono', 'Consolas', 'Courier New', monospace;

  /* Segment region colors */
  --seg-spk1:  rgba(37,  99, 235, .22);
  --seg-spk2:  rgba(249, 115,  22, .22);
  --seg-spk3:  rgba(22,  163,  74, .22);
  --seg-event: rgba(107, 114, 128, .18);
}

/* ---- Reset / Base ---- */
*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: .9375rem;
  line-height: 1.5;
  background: var(--body-bg);
  color: var(--text-primary);
  min-height: 100vh;
}

/* ================================================================
   Layout: sidebar + main
   ================================================================ */

.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ---- Sidebar ---- */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  overflow-y: auto;
  overflow-x: hidden;
  transition: width .2s ease, min-width .2s ease;
}

.sidebar.collapsed {
  width: 56px;
  min-width: 56px;
}

.sidebar-header {
  padding: 20px 16px 16px;
  border-bottom: 1px solid var(--sidebar-border);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.sidebar-logo {
  width: 32px; height: 32px;
  background: var(--accent);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 16px;
  flex-shrink: 0;
}

.sidebar-title {
  font-weight: 600;
  font-size: .9rem;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
}

.sidebar.collapsed .sidebar-title { display: none; }

/* Nav groups */
.sidebar-nav {
  flex: 1;
  padding: 12px 8px;
}

.nav-group-label {
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 12px 8px 4px;
  white-space: nowrap;
  overflow: hidden;
}

.sidebar.collapsed .nav-group-label { opacity: 0; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: .875rem;
  transition: background .15s, color .15s;
  white-space: nowrap;
  overflow: hidden;
  cursor: pointer;
}

.nav-item:hover { background: var(--body-bg); color: var(--text-primary); }
.nav-item.active { background: var(--accent-light); color: var(--accent); font-weight: 500; }

.nav-item i { font-size: 1rem; flex-shrink: 0; width: 18px; text-align: center; }
.nav-item span { overflow: hidden; white-space: nowrap; }
.sidebar.collapsed .nav-item span { display: none; }
.sidebar.collapsed .nav-group-label { display: none; }

/* Sidebar footer */
.sidebar-footer {
  border-top: 1px solid var(--sidebar-border);
  padding: 12px 12px;
  flex-shrink: 0;
}

.user-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 4px;
}

.user-avatar {
  width: 32px; height: 32px;
  background: var(--accent);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 600; font-size: .8rem;
  flex-shrink: 0;
}

.user-info { overflow: hidden; }
.user-name { font-weight: 500; font-size: .85rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-stats { font-size: .75rem; color: var(--text-muted); }
.sidebar.collapsed .user-info { display: none; }

/* ---- Main ---- */
.main-wrapper {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left .2s ease;
}

.sidebar.collapsed ~ .main-wrapper { margin-left: 56px; }

.page-header {
  padding: 24px 28px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
}

.page-content {
  padding: 20px 28px 32px;
  flex: 1;
}

/* ================================================================
   Cards
   ================================================================ */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.card-body { padding: 20px; }
.card-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  font-weight: 500;
  display: flex; align-items: center; justify-content: space-between;
}

/* ================================================================
   Buttons
   ================================================================ */
.btn { border-radius: var(--radius-sm); font-size: .875rem; transition: .15s; }

.btn-primary { background: var(--accent); border-color: var(--accent); }
.btn-primary:hover, .btn-primary:focus { background: var(--accent-hover); border-color: var(--accent-hover); }

.btn-outline-primary { color: var(--accent); border-color: var(--accent); }
.btn-outline-primary:hover { background: var(--accent); color: #fff; }

.btn-sm { padding: .3rem .65rem; font-size: .8125rem; }
.btn-lg { padding: .625rem 1.5rem; font-size: 1rem; }

/* ================================================================
   Forms
   ================================================================ */
.form-control, .form-select {
  border-color: var(--border-input);
  border-radius: var(--radius-sm);
  font-size: .875rem;
}
.form-control:focus, .form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}

.form-label { font-size: .875rem; font-weight: 500; margin-bottom: .35rem; }

/* ================================================================
   Tables
   ================================================================ */
.table { font-size: .875rem; }
.table th { font-weight: 500; color: var(--text-secondary); font-size: .8125rem; text-transform: uppercase; letter-spacing: .04em; }
.table > :not(caption) > * > * { padding: .625rem 1rem; }

/* ================================================================
   Badges / Pills
   ================================================================ */
.badge { font-size: .7rem; font-weight: 500; padding: .25em .6em; border-radius: 20px; }

.status-badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 8px; border-radius: 20px;
  font-size: .72rem; font-weight: 500;
}
.status-approved    { background: #dcfce7; color: #15803d; }
.status-pending     { background: #fef9c3; color: #a16207; }
.status-rejected    { background: #fee2e2; color: #b91c1c; }
.status-in-progress { background: #dbeafe; color: #1d4ed8; }
.status-no-trans    { background: #f3f4f6; color: #6b7280; }
.status-partial     { background: #fde68a; color: #92400e; }

/* ================================================================
   Auth pages
   ================================================================ */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--body-bg);
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 36px 32px;
}

.auth-logo {
  display: flex; align-items: center; justify-content: center;
  gap: 10px;
  margin-bottom: 28px;
}

.auth-logo-icon {
  width: 40px; height: 40px;
  background: var(--accent);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 20px;
}

.auth-logo-text {
  font-weight: 700; font-size: 1.1rem; color: var(--text-primary);
}

/* ================================================================
   Waveform / Annotator workspace
   ================================================================ */
.workspace { display: flex; flex-direction: column; gap: 16px; }

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

.chunk-id {
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--text-secondary);
}

.chunk-type-badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 8px; border-radius: 4px; font-size: .72rem; font-weight: 500;
}
.chunk-type-vad      { background: #e0e7ff; color: #3730a3; }
.chunk-type-full     { background: #fce7f3; color: #9d174d; }

.session-timer {
  font-family: var(--font-mono);
  font-size: .875rem; font-weight: 500;
  color: var(--text-secondary);
  margin-left: auto;
}
.session-timer.warn  { color: #d97706; }
.session-timer.danger { color: #dc2626; }

/* Waveform container */
.waveform-wrap {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

#waveform { width: 100%; }
#wave-minimap { width: 100%; margin-top: 8px; border-top: 1px solid var(--border); padding-top: 8px; }

.wave-controls {
  display: flex; align-items: center; gap: 10px; margin-top: 12px; flex-wrap: wrap;
}

.wave-controls .time-display {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--text-secondary);
  min-width: 70px;
}

/* ================================================================
   Segment cards
   ================================================================ */
.segments-panel { display: flex; flex-direction: column; gap: 2px; }

.segment-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow .15s, border-color .15s;
}

.segment-card.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(37,99,235,.12);
}

.segment-card-header {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 12px;
  background: #fafafa;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  user-select: none;
}

.seg-num {
  width: 22px; height: 22px; border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  font-size: .7rem; font-weight: 600; flex-shrink: 0;
  background: var(--border); color: var(--text-secondary);
}
.seg-num.spk1 { background: rgba(37, 99,235,.15); color: #1d4ed8; }
.seg-num.spk2 { background: rgba(249,115, 22,.15); color: #c2410c; }
.seg-num.spk3 { background: rgba(22,163, 74,.15); color: #15803d; }
.seg-num.event { background: rgba(107,114,128,.15); color: #6b7280; }

.seg-time {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--text-muted);
  min-width: 100px;
}

.seg-preview {
  font-size: .78rem; color: var(--text-secondary);
  flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.segment-card-body { padding: 12px; }

.seg-type-radio { display: flex; gap: 12px; margin-bottom: 10px; }
.seg-type-radio label { font-size: .8125rem; cursor: pointer; display: flex; align-items: center; gap: 4px; }

.seg-fields-speech { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 8px; }
.seg-fields-event  { display: grid; grid-template-columns: 200px; gap: 8px; }

.seg-text-wrap { margin-top: 10px; }
.seg-text { resize: vertical; min-height: 52px; font-size: .875rem; }

.seg-actions { margin-top: 8px; display: flex; justify-content: flex-end; gap: 6px; }

/* confidence pills */
.confidence-group { display: flex; gap: 4px; }
.conf-dot {
  width: 10px; height: 10px; border-radius: 50%;
  border: 2px solid var(--border-input); background: transparent;
  cursor: pointer; transition: .15s;
}
.conf-dot.filled  { background: var(--accent); border-color: var(--accent); }

.confidence-select { display: flex; gap: 6px; align-items: center; }
.confidence-select .conf-btn {
  border: 1px solid var(--border-input);
  border-radius: 4px; padding: 2px 8px; font-size: .75rem;
  cursor: pointer; background: none; color: var(--text-secondary);
  transition: .15s;
}
.confidence-select .conf-btn.active {
  border-color: var(--accent); background: var(--accent-light); color: var(--accent); font-weight: 500;
}

/* ================================================================
   Empty state
   ================================================================ */
.empty-state {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center;
  padding: 60px 24px; text-align: center;
}
.empty-state-icon { font-size: 3rem; color: var(--text-muted); margin-bottom: 16px; }
.empty-state-title { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; }
.empty-state-desc { color: var(--text-secondary); margin-bottom: 24px; font-size: .9rem; }

/* ================================================================
   Toast / Alert
   ================================================================ */
.toast-container {
  position: fixed; top: 16px; right: 16px; z-index: 9999;
  display: flex; flex-direction: column; gap: 8px;
  pointer-events: none;
}

.app-toast {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 12px 16px;
  display: flex; align-items: center; gap: 10px;
  min-width: 260px; max-width: 380px;
  pointer-events: all;
  animation: slideIn .2s ease;
}

@keyframes slideIn {
  from { transform: translateX(40px); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

.app-toast.toast-success { border-left: 3px solid #16a34a; }
.app-toast.toast-error   { border-left: 3px solid #dc2626; }
.app-toast.toast-warning { border-left: 3px solid #d97706; }
.app-toast.toast-info    { border-left: 3px solid var(--accent); }

/* ================================================================
   Stats / Charts
   ================================================================ */
.stat-card {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px; text-align: center;
}
.stat-value { font-size: 2rem; font-weight: 700; color: var(--text-primary); line-height: 1; }
.stat-label { font-size: .8rem; color: var(--text-secondary); margin-top: 4px; }

/* ================================================================
   Hotkeys modal
   ================================================================ */
.hotkey-table td:first-child {
  font-family: var(--font-mono); font-size: .78rem;
  white-space: nowrap; color: var(--accent);
}

/* ================================================================
   Admin tables
   ================================================================ */
.table-actions { display: flex; gap: 6px; flex-wrap: wrap; }

/* Source status bar */
.status-bar {
  display: flex; gap: 1px; height: 6px; border-radius: 3px; overflow: hidden;
}
.status-bar-segment { flex-shrink: 0; transition: width .3s; }

/* ================================================================
   Responsive — mobile
   ================================================================ */
@media (max-width: 767px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform .25s ease;
  }
  .sidebar.mobile-open { transform: translateX(0); }

  .main-wrapper { margin-left: 0 !important; }

  .page-header { padding: 16px 16px 0; }
  .page-content { padding: 16px; }

  .seg-fields-speech { grid-template-columns: 1fr 1fr; }

  .auth-card { padding: 24px 20px; }
}

/* ================================================================
   Misc helpers
   ================================================================ */
.mono { font-family: var(--font-mono); }
.text-muted-sm { font-size: .78rem; color: var(--text-muted); }
.gap-8 { gap: 8px; }

/* Scrollbars */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #d1d5db; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #9ca3af; }

/* ================================================================
   Sidebar collapse/expand toggle button (desktop)
   ================================================================ */
.sidebar-collapse-btn {
  width: 28px;
  height: 28px;
  padding: 0;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--card-bg);
  border: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(0,0,0,.10);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: .7rem;
  line-height: 1;
  transition: background .15s, box-shadow .15s, color .15s, border-color .15s;
}

.sidebar-collapse-btn:hover {
  background: var(--body-bg);
  box-shadow: 0 2px 6px rgba(0,0,0,.14);
  color: var(--text-primary);
  border-color: #c5cbd3;
}

.sidebar-collapse-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Mobile overlay when sidebar is open */
.sidebar-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,.4);
  z-index: 99;
}
@media (max-width: 767px) {
  .sidebar-overlay.visible { display: block; }
}