:root {
  /* Midnight Glow Spectrum Color Palette */
  --bg-dark: #1a1a2e;         /* Mirage - Deep Midnight Background */
  --bg-surface: #0f3461;      /* Madison - Rich Surface Navy */
  --bg-card: #162a45;         /* Deep Blue Container */
  --bg-card-hover: #1c3557;   /* Hover Container */
  --border-color: #23436d;    /* Subdued Blue Border */
  --border-subtle: #193354;

  --accent-primary: #00a8e0;  /* Cerulean - Vibrant Primary Blue */
  --accent-primary-hover: #0090c2;
  --accent-glow: rgba(0, 168, 224, 0.25);

  --accent-gold: #f9fbcb;     /* Corn Field - Warm Cream / Gold Highlight */
  --accent-coral: #ff6e61;    /* Bittersweet - Urgent Coral Red */

  --text-main: #f9fbcb;       /* Soft Cream Main Text */
  --text-muted: #b8c7db;      /* Soft Light Blue Muted Text */
  --text-subtle: #7991b3;     /* Subtle Text */

  --badge-urgent-bg: rgba(255, 110, 97, 0.18);
  --badge-urgent-text: #ff6e61;
  --badge-high-bg: rgba(249, 251, 203, 0.18);
  --badge-high-text: #f9fbcb;
  --badge-medium-bg: rgba(0, 168, 224, 0.18);
  --badge-medium-text: #00a8e0;
  --badge-low-bg: rgba(16, 185, 129, 0.18);
  --badge-low-text: #34d399;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;

  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-main);
  height: 100vh;
  overflow: hidden;
  line-height: 1.5;
}

/* Password Login Overlay Screen */
.login-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-dark);
  background: radial-gradient(circle at center, #162a45 0%, #1a1a2e 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.login-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.login-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--accent-primary);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  width: 400px;
  max-width: 90vw;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 30px var(--accent-glow);
  display: flex;
  flex-direction: column;
  gap: 20px;
  text-align: center;
}

.login-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-gold);
}

.login-subtitle {
  font-size: 0.84rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.login-error {
  color: var(--badge-urgent-text);
  font-size: 0.82rem;
  font-weight: 600;
  background: var(--badge-urgent-bg);
  padding: 8px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 110, 97, 0.3);
}

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

/* Header */
.app-header {
  height: 72px;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 10;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #00a8e0, #0f3461);
  border: 1px solid var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--accent-gold);
}

.brand-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
}

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

.stat-pill {
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 6px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-value {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-gold);
  font-family: var(--font-mono);
}

.stat-label {
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.stat-pill.highlight-urgent .stat-value {
  color: var(--badge-urgent-text);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
  background: rgba(0, 168, 224, 0.1);
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid rgba(0, 168, 224, 0.3);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-dot.green {
  background-color: #00a8e0;
  box-shadow: 0 0 10px #00a8e0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  outline: none;
}

.btn-primary {
  background-color: var(--accent-primary);
  color: #0f3461;
  font-weight: 700;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-primary:hover {
  background-color: var(--accent-primary-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.14);
  border-color: var(--accent-primary);
}

/* Main Container Layout */
.main-container {
  display: grid;
  grid-template-columns: 380px 1fr;
  flex: 1;
  overflow: hidden;
}

/* Calls Sidebar */
.calls-sidebar {
  background-color: var(--bg-surface);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--accent-gold);
}

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

.input-search, .select-filter {
  background-color: var(--bg-dark);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  outline: none;
}

.input-search {
  flex: 1;
}

.select-filter {
  width: 120px;
}

.calls-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Call Item Card */
.call-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.call-card:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--accent-primary);
  transform: translateY(-1px);
}

.call-card.active {
  border-color: var(--accent-primary);
  background-color: rgba(0, 168, 224, 0.12);
  box-shadow: 0 0 0 1px var(--accent-primary);
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.caller-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: #fff;
}

.badge-urgency {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-urgency.Urgent { background: var(--badge-urgent-bg); color: var(--badge-urgent-text); border: 1px solid rgba(255, 110, 97, 0.4); }
.badge-urgency.High { background: var(--badge-high-bg); color: var(--badge-high-text); border: 1px solid rgba(249, 251, 203, 0.4); }
.badge-urgency.Medium { background: var(--badge-medium-bg); color: var(--badge-medium-text); border: 1px solid rgba(0, 168, 224, 0.4); }
.badge-urgency.Low { background: var(--badge-low-bg); color: var(--badge-low-text); }

.card-number {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.card-summary-preview {
  font-size: 0.82rem;
  color: var(--text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 10px;
}

.card-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-subtle);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 8px;
}

.audio-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--accent-primary);
  font-weight: 600;
}

/* Call Detail View */
.call-detail-view {
  background-color: var(--bg-dark);
  overflow-y: auto;
  padding: 28px 36px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.empty-detail {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-subtle);
  gap: 12px;
  text-align: center;
}

.detail-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

.detail-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-gold);
  margin-bottom: 4px;
}

.detail-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.audio-player-card {
  background: linear-gradient(135deg, #162a45, #0f3461);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}

.audio-card-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

audio {
  width: 100%;
  height: 42px;
  outline: none;
  filter: invert(0.9) hue-rotate(180deg);
}

/* AI Summary Section */
.summary-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
}

.summary-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.card-heading {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--accent-gold);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.summary-text {
  font-size: 0.92rem;
  color: var(--text-main);
  line-height: 1.6;
}

.action-items-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.action-item {
  font-size: 0.88rem;
  color: var(--text-main);
  background: rgba(255,255,255,0.04);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent-primary);
}

/* Transcript View */
.transcript-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.transcript-timeline {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 16px;
}

.transcript-bubble {
  display: flex;
  flex-direction: column;
  max-width: 80%;
}

.transcript-bubble.receptionist {
  align-self: flex-start;
}

.transcript-bubble.caller {
  align-self: flex-end;
}

.bubble-sender {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 4px;
  padding: 0 4px;
}

.bubble-text {
  padding: 12px 18px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  line-height: 1.5;
}

.transcript-bubble.receptionist .bubble-text {
  background-color: var(--bg-card);
  color: var(--text-main);
  border-bottom-left-radius: 4px;
  border: 1px solid var(--border-color);
}

.transcript-bubble.caller .bubble-text {
  background-color: var(--accent-primary);
  color: #0f3461;
  font-weight: 600;
  border-bottom-right-radius: 4px;
}

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 16, 30, 0.85);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--accent-primary);
  border-radius: var(--radius-lg);
  width: 540px;
  max-width: 90vw;
  box-shadow: 0 20px 50px rgba(0,0,0,0.6);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  color: var(--accent-gold);
}

.btn-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

.modal-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-height: 70vh;
  overflow-y: auto;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-input, .form-textarea {
  background-color: var(--bg-dark);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  padding: 10px 14px;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  outline: none;
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--accent-primary);
}

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid rgba(255,255,255,0.1);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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