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

:root {
  /* Color Palette - Premium Slate & Blue (Deep Academic Theme) */
  --bg-primary: hsl(222, 47%, 6%);
  --bg-secondary: hsl(222, 47%, 10%);
  --bg-tertiary: hsl(222, 40%, 15%);
  --bg-glass: rgba(15, 23, 42, 0.65);
  --bg-glass-hover: rgba(30, 41, 59, 0.8);
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-hover: rgba(255, 255, 255, 0.16);
  --border-active: hsl(217, 91%, 60%);
  
  --text-primary: hsl(210, 40%, 98%);
  --text-secondary: hsl(215, 25%, 72%);
  --text-muted: hsl(215, 16%, 50%);
  
  --color-primary: hsl(217, 91%, 60%);
  --color-primary-rgb: 59, 130, 246;
  --color-secondary: hsl(250, 80%, 65%);
  --color-accent: hsl(270, 80%, 60%);
  
  --color-success: hsl(142, 76%, 45%);
  --color-success-rgb: 22, 163, 74;
  --color-warning: hsl(45, 93%, 47%);
  --color-danger: hsl(0, 84%, 60%);
  
  --gradient-hero: linear-gradient(135deg, hsl(222, 47%, 10%), hsl(224, 70%, 15%));
  --gradient-primary: linear-gradient(135deg, hsl(217, 91%, 60%), hsl(250, 80%, 65%));
  --gradient-accent: linear-gradient(135deg, hsl(250, 80%, 65%), hsl(270, 80%, 60%));
  --gradient-success: linear-gradient(135deg, hsl(142, 76%, 40%), hsl(142, 70%, 55%));
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.15);
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.15);
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-display: 'Outfit', sans-serif;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  
  --sidebar-width: 280px;
}

/* Base resets */
html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  border: 2px solid var(--bg-primary);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Loading Overlay */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.loading-overlay.fade-out {
  opacity: 0;
  visibility: hidden;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border-color);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Layout Containers */
.app-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  min-height: 100vh;
}

/* Header */
.app-header {
  position: relative;
  background: var(--gradient-hero);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.header-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.15) 0%, transparent 50%);
  pointer-events: none;
}

.header-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.badge {
  display: inline-self: flex-start;
  align-self: flex-start;
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: hsl(217, 91%, 75%);
  padding: 6px 14px;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: var(--font-display);
}

.app-header h1 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  background: linear-gradient(120deg, var(--text-primary), hsl(210, 40%, 80%));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

@media(min-width: 600px) {
  .app-header h1 {
    font-size: 2.2rem;
  }
}

.date-range {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Live Dashboard */
.live-dashboard {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-md);
}

.section-heading {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.section-heading i {
  color: var(--color-primary);
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media(min-width: 768px) {
  .dashboard-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.dashboard-card {
  position: relative;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  cursor: pointer;
  overflow: hidden;
}

.dashboard-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-color-hover);
  box-shadow: var(--shadow-md);
}

.now-card {
  border-left: 4px solid var(--color-success);
  background: linear-gradient(90deg, rgba(22, 163, 74, 0.05) 0%, transparent 100%);
}

.next-card {
  border-left: 4px solid var(--color-primary);
  background: linear-gradient(90deg, rgba(59, 130, 246, 0.05) 0%, transparent 100%);
}

.card-status-pill {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 8px;
  border-radius: 4px;
  align-self: flex-start;
}

.now-card .card-status-pill {
  background: rgba(22, 163, 74, 0.15);
  color: var(--color-success);
}

.next-card .card-status-pill {
  background: rgba(59, 130, 246, 0.15);
  color: var(--color-primary);
}

.dashboard-card .event-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.3;
  margin-top: 4px;
}

.dashboard-card .event-time {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.event-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.event-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.event-meta i {
  width: 14px;
  height: 14px;
}

.now-pulse {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.7);
  animation: pulse 1.6s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.7);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 6px rgba(22, 163, 74, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(22, 163, 74, 0);
  }
}

/* Control Panel */
.control-panel {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.control-row {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

@media(min-width: 768px) {
  .control-row.main-controls {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
  }
  
  .control-row.secondary-controls {
    flex-direction: row;
    align-items: center;
    gap: 16px;
  }
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.control-group label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

/* Section Pills */
.section-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  width: 100%;
}

.section-btn {
  flex: 1 1 calc(50% - 8px);
  min-width: 100px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

.section-btn:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-color-hover);
  color: var(--text-primary);
}

.section-btn.active {
  background: var(--gradient-primary);
  border-color: transparent;
  color: white;
  box-shadow: var(--shadow-glow);
}

@media(min-width: 600px) {
  .section-btn {
    flex: 1;
  }
}

/* View Toggles */
.view-toggles {
  display: flex;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  padding: 4px;
  border-radius: var(--radius-sm);
  width: 100%;
}

@media(min-width: 768px) {
  .view-toggle-group {
    max-width: 240px;
  }
}

.view-btn {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.view-btn i {
  width: 16px;
  height: 16px;
}

.view-btn:hover {
  color: var(--text-primary);
}

.view-btn.active {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color-hover);
  box-shadow: var(--shadow-sm);
}

/* Search Bar */
.search-bar-container {
  position: relative;
  flex: 1;
  width: 100%;
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  pointer-events: none;
}

.search-bar-container input {
  width: 100%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 12px 16px 12px 42px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-family: var(--font-sans);
  transition: all var(--transition-normal);
}

.search-bar-container input:focus {
  outline: none;
  border-color: var(--border-active);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
  background: var(--bg-secondary);
}

.clear-search-btn {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast);
}

.clear-search-btn:hover {
  color: var(--text-primary);
}

.clear-search-btn i {
  width: 16px;
  height: 16px;
}

/* Filter Chips */
.filters-row {
  display: flex;
  gap: 8px;
  width: 100%;
}

@media(min-width: 768px) {
  .filters-row {
    width: auto;
  }
}

.filter-chip {
  flex: 1;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 10px 16px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

@media(min-width: 768px) {
  .filter-chip {
    flex: initial;
  }
}

.filter-chip i {
  width: 16px;
  height: 16px;
}

.filter-chip:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-color-hover);
  color: var(--text-primary);
}

.filter-chip.active {
  border-color: var(--border-active);
  color: var(--text-primary);
  background: rgba(59, 130, 246, 0.08);
}

.filter-chip.active i {
  fill: var(--color-primary);
  color: var(--color-primary);
}

#btn-simulator-toggle.active {
  border-color: var(--color-accent);
  background: rgba(168, 85, 247, 0.08);
}

#btn-simulator-toggle.active i {
  color: var(--color-accent);
}

/* Simulator Drawer */
.simulator-drawer {
  background: rgba(255, 255, 255, 0.01);
  border: 1px dashed rgba(168, 85, 247, 0.3);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-top: 4px;
  animation: slideDown var(--transition-normal);
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.simulator-content {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.simulator-header h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.simulator-header h3 i {
  color: var(--color-accent);
}

.simulator-header p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.simulator-controls {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

@media(min-width: 640px) {
  .simulator-controls {
    flex-direction: row;
    align-items: flex-end;
    gap: 16px;
  }
}

.sim-input-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.sim-input-group label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
}

.sim-input-group input {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.9rem;
}

.sim-btn-group {
  display: flex;
  gap: 8px;
}

.sim-action-btn {
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
}

.sim-action-btn.primary {
  background: var(--color-accent);
  color: white;
}

.sim-action-btn.primary:hover {
  background: hsl(270, 80%, 50%);
}

.sim-action-btn.secondary {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.sim-action-btn.secondary:hover {
  background: var(--bg-glass-hover);
  color: var(--text-primary);
}

.simulator-status {
  font-size: 0.85rem;
  color: var(--text-secondary);
  border-top: 1px solid var(--border-color);
  padding-top: 10px;
}

/* Day Navigation */
.day-navigation {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-arrow-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.nav-arrow-btn:hover {
  background: var(--bg-glass-hover);
  color: var(--text-primary);
  border-color: var(--border-color-hover);
}

.nav-arrow-btn i {
  width: 20px;
  height: 20px;
}

.day-pills-container {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scroll-behavior: smooth;
  padding: 4px 0;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none; /* Hide standard Firefox scrollbar */
}

.day-pills-container::-webkit-scrollbar {
  display: none; /* Hide standard Safari/Chrome scrollbars */
}

.day-pill {
  flex-shrink: 0;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  padding: 10px 16px;
  border-radius: var(--radius-md);
  text-align: center;
  min-width: 100px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  transition: all var(--transition-normal);
}

.day-pill:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-color-hover);
  transform: translateY(-1px);
}

.day-pill.active {
  background: rgba(59, 130, 246, 0.08);
  border-color: var(--border-active);
  box-shadow: var(--shadow-sm);
}

.day-pill.today {
  position: relative;
}

.day-pill.today::after {
  content: '';
  position: absolute;
  bottom: 6px;
  width: 4px;
  height: 4px;
  background: var(--color-primary);
  border-radius: 50%;
}

.day-pill-date {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
}

.day-pill.active .day-pill-date {
  color: var(--color-primary);
}

.day-pill-day {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.day-pill-dot-container {
  display: flex;
  gap: 3px;
  margin-top: 2px;
  height: 4px;
  align-items: center;
}

.day-pill-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-muted);
}

.day-pill.active .day-pill-dot {
  background: var(--color-primary);
}

/* Schedule Content */
.schedule-content {
  min-height: 400px;
}

.view-panel {
  display: none;
  animation: fadeIn var(--transition-normal);
}

.view-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.day-view-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.day-view-header h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.day-summary-badge {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  padding: 6px 12px;
  border-radius: 9999px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Timeline Layout */
.timeline-wrapper {
  position: relative;
  padding-left: 20px;
}

@media(min-width: 640px) {
  .timeline-wrapper {
    padding-left: 32px;
  }
}

.timeline-line {
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--border-color) 0%, rgba(255, 255, 255, 0.02) 100%);
}

@media(min-width: 640px) {
  .timeline-line {
    left: 8px;
  }
}

.timeline-events {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Event Card */
.event-card {
  position: relative;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all var(--transition-normal);
  cursor: pointer;
}

.event-card:hover {
  transform: translateX(4px);
  border-color: var(--border-color-hover);
  background: var(--bg-glass-hover);
  box-shadow: var(--shadow-glow);
}

/* Timeline Node */
.event-card::before {
  content: '';
  position: absolute;
  left: -26px;
  top: 26px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--border-color);
  z-index: 2;
  transition: all var(--transition-normal);
}

@media(min-width: 640px) {
  .event-card::before {
    left: -32px;
  }
}

.event-card:hover::before {
  border-color: var(--color-primary);
  background: var(--color-primary);
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.4);
}

/* Special statuses */
.event-card.status-ongoing {
  border-left: 4px solid var(--color-success);
}
.event-card.status-ongoing::before {
  border-color: var(--color-success);
  background: var(--color-success);
  box-shadow: 0 0 10px rgba(22, 163, 74, 0.4);
}

.event-card.status-completed {
  opacity: 0.6;
}
.event-card.status-completed::before {
  border-color: var(--text-muted);
  background: var(--bg-tertiary);
}

.card-header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}

.card-header-left {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.slot-tag {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 4px 8px;
  border-radius: 4px;
}

.status-badge {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: 4px;
}

.status-badge.ongoing {
  background: rgba(22, 163, 74, 0.12);
  color: var(--color-success);
}
.status-badge.upcoming {
  background: rgba(59, 130, 246, 0.12);
  color: var(--color-primary);
}
.status-badge.completed {
  background: var(--bg-tertiary);
  color: var(--text-muted);
}

.star-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  z-index: 5;
}

.star-btn:hover {
  color: var(--color-warning);
  transform: scale(1.1);
  background: rgba(255, 255, 255, 0.05);
}

.star-btn.starred {
  color: var(--color-warning);
}

.star-btn.starred i {
  fill: var(--color-warning);
}

.event-card .card-body {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.event-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-primary);
}

.time-row {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-primary);
}

.time-row i {
  width: 16px;
  height: 16px;
}

.card-footer-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 4px;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding-top: 10px;
}

@media(min-width: 640px) {
  .card-footer-row {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.speaker-info {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.speaker-info i {
  width: 14px;
  height: 14px;
  color: var(--text-muted);
}

.venue-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  padding: 6px 12px;
  border-radius: 9999px;
  align-self: flex-start;
}

.venue-tag i {
  width: 14px;
  height: 14px;
  color: var(--color-primary);
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
  background: var(--bg-glass);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-lg);
  gap: 16px;
}

.empty-state i {
  width: 48px;
  height: 48px;
  color: var(--text-muted);
}

.empty-state h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
}

.empty-state p {
  color: var(--text-muted);
  max-width: 320px;
  font-size: 0.9rem;
}

/* Week View Grid */
.week-view-header {
  margin-bottom: 24px;
}

.week-view-header h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
}

.week-view-header p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 4px;
}

.week-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media(min-width: 640px) {
  .week-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media(min-width: 1024px) {
  .week-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.week-day-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  cursor: pointer;
  transition: all var(--transition-normal);
  min-width: 0;
  overflow: hidden;
}

.week-day-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-active);
  background: var(--bg-glass-hover);
  box-shadow: var(--shadow-glow);
}

.week-day-card.active-day {
  border-color: var(--color-primary);
  background: rgba(59, 130, 246, 0.03);
}

.week-day-card .day-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.week-day-card .day-title h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
}

.week-day-card .day-title span {
  font-size: 0.75rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  padding: 2px 8px;
  border-radius: 9999px;
  font-weight: 500;
  color: var(--text-secondary);
}

.week-day-card .day-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.week-day-card .day-preview-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding-top: 10px;
  margin-top: 4px;
}

.preview-item {
  font-size: 0.8rem;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 6px;
}

.preview-item.starred-item i {
  color: var(--color-warning);
  fill: var(--color-warning);
}

.preview-item i {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
  color: var(--text-muted);
}

/* Dialog Modal */
dialog {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: transparent;
  border: none;
  padding: 0;
  max-width: 540px;
  width: calc(100% - 32px);
  z-index: 1000;
  outline: none;
  box-shadow: none;
  color: var(--text-primary);
  display: none; /* Let showModal manage display */
}

dialog[open] {
  display: block;
  animation: modalScaleIn var(--transition-normal);
}

@keyframes modalScaleIn {
  from { opacity: 0; transform: translate(-50%, -45%) scale(0.95); }
  to { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

dialog::backdrop {
  background-color: rgba(9, 15, 29, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.dialog-card {
  background: var(--bg-secondary);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  box-shadow: var(--shadow-lg);
}

.dialog-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.dialog-close-btn:hover {
  background: var(--bg-glass-hover);
  color: var(--text-primary);
  border-color: var(--border-color-hover);
}

.dialog-close-btn i {
  width: 18px;
  height: 18px;
}

.dialog-header {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 8px;
}

.dialog-session-slot {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  padding: 4px 10px;
  border-radius: 4px;
  color: var(--text-secondary);
}

.dialog-status-badge {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 4px;
}

.dialog-status-badge.ongoing {
  background: rgba(22, 163, 74, 0.15);
  color: var(--color-success);
}
.dialog-status-badge.upcoming {
  background: rgba(59, 130, 246, 0.15);
  color: var(--color-primary);
}
.dialog-status-badge.completed {
  background: var(--bg-tertiary);
  color: var(--text-muted);
}

.dialog-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1.25;
  width: 100%;
  margin-top: 8px;
}

.dialog-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.dialog-info-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media(min-width: 480px) {
  .dialog-info-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  padding: 12px;
  border-radius: var(--radius-sm);
}

.info-item#dialog-speaker-block {
  grid-column: 1 / -1;
}

.info-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.info-label i {
  width: 14px;
  height: 14px;
  color: var(--color-primary);
}

.info-val {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.4;
}

.dialog-sections {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.section-tag-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
}

.dialog-event-sections {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.section-pill-tag {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  padding: 6px 12px;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.section-pill-tag.highlighted {
  border-color: var(--border-active);
  background: rgba(59, 130, 246, 0.08);
  color: var(--color-primary);
}

.dialog-note-block {
  background: rgba(255, 255, 255, 0.02);
  border: 1px dashed var(--border-color);
  padding: 12px;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.dialog-note-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.dialog-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 8px;
}

@media(min-width: 480px) {
  .dialog-actions {
    flex-direction: row;
  }
}

.dialog-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.dialog-btn i {
  width: 16px;
  height: 16px;
}

.btn-gcal {
  background: var(--gradient-primary);
  border: none;
  color: white;
}

.btn-gcal:hover {
  box-shadow: var(--shadow-glow);
  opacity: 0.95;
}

.btn-ical {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-ical:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-color-hover);
}

/* Footer styling */
.app-footer {
  text-align: center;
  border-top: 1px solid var(--border-color);
  padding: 24px 0 40px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.app-footer .credits {
  font-size: 0.75rem;
}

/* Fix detailed modal applicable sections responsiveness */
.section-tags, .dialog-event-sections {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.section-pill-tag {
  flex-shrink: 0;
}

/* Collapsed completed event card styles in Day View */
.event-card.status-completed.collapsed-event {
  opacity: 0.45;
  padding: 12px 18px;
  background: rgba(15, 23, 42, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.event-card.status-completed.collapsed-event::before {
  top: 18px;
  width: 10px;
  height: 10px;
  left: -24px;
}

@media(min-width: 640px) {
  .event-card.status-completed.collapsed-event::before {
    left: -30px;
  }
}

.event-card.status-completed.collapsed-event .card-body,
.event-card.status-completed.collapsed-event .card-footer-row,
.event-card.status-completed.collapsed-event .card-header-row {
  display: none;
}

.event-card.status-completed .collapsed-summary {
  display: none;
}

.event-card.status-completed.collapsed-event .collapsed-summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  gap: 12px;
}

.event-card.status-completed.collapsed-event .collapsed-summary-left {
  display: flex;
  align-items: center;
  gap: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.event-card.status-completed.collapsed-event .collapsed-time {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  flex-shrink: 0;
}

.event-card.status-completed.collapsed-event .collapsed-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.event-card.status-completed.collapsed-event .collapsed-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.collapsed-expand-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  padding: 4px;
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.collapsed-expand-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

/* Expanded card details collapse handle */
.expanded-collapse-handle {
  display: flex;
  justify-content: flex-end;
  margin-top: 8px;
  border-top: 1px dashed rgba(255, 255, 255, 0.04);
  padding-top: 8px;
}

.expanded-collapse-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border-radius: 4px;
}

.expanded-collapse-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

/* Collapsed week day cards */
.week-day-card.collapsed-day {
  padding: 14px 20px;
  background: rgba(15, 23, 42, 0.2);
  opacity: 0.6;
  border-color: rgba(255, 255, 255, 0.04);
}

.week-day-card.collapsed-day .day-preview-list,
.week-day-card.collapsed-day .day-subtitle {
  display: none;
}

.week-day-card.collapsed-day .day-title h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.week-day-card.collapsed-day .day-title {
  width: 100%;
}

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

.week-day-card.collapsed-day .day-title span {
  font-size: 0.7rem;
  padding: 1px 6px;
}

.expand-day-btn {
  background: transparent;
  border: none;
  color: var(--color-primary);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 2px;
}

.expand-day-btn:hover {
  color: var(--text-primary);
}