@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
  --bg-primary: hsl(220, 40%, 8%);
  --bg-radial: radial-gradient(circle at 50% 50%, hsl(220, 35%, 15%) 0%, hsl(220, 40%, 6%) 100%);
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --primary-color: hsl(210, 100%, 55%);
  --primary-hover: hsl(210, 100%, 45%);
  --text-main: hsl(0, 0%, 100%);
  --text-dim: hsl(220, 10%, 65%);
  --accent-ok: #34a853;
  --accent-warn: #fbbc04;
  --accent-danger: #ea4335;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --radius-lg: 16px;
  --radius-md: 10px;

  /* Meeting system overlaps */
  --bg-dark: hsl(220, 40%, 6%);
  --bg-darker: hsl(220, 40%, 4%);
  --bg-panel: rgba(15, 22, 33, 0.85);
}

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

body {
  font-family: 'Outfit', sans-serif;
  background: var(--bg-radial);
  color: var(--text-main);
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.meeting-container {
  display: flex;
  flex-direction: column;
  flex: 1;
  height: calc(100vh - 48px);
  /* Account for 48px web navbar */
  position: relative;
  background: transparent;
}

/* Video Area */
.video-grid-container {
  flex: 1;
  display: flex;
  padding: 10px;
  overflow: hidden;
  justify-content: center;
  align-items: center;
}

.video-grid {
  display: grid;
  gap: 10px;
  width: 100%;
  height: 100%;
  max-width: 1600px;
}

/* Gallery View (Square Grid) */
.video-grid[data-view="gallery"] {
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
}

/* Speaker View (One Large, Others Small) */
.video-grid[data-view="speaker"] {
  grid-template-areas: "speaker list";
  grid-template-columns: 4fr 1fr;
}

.video-container {
  position: relative;
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  transition: var(--transition);
}

.video-container:hover {
  border-color: rgba(255, 255, 255, 0.15) !important;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

.video-container video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-container.local-video video {
  transform: scaleX(-1);
}

/* Spotlight Styles */
.video-container.spotlight-active {
  border: 4px solid var(--accent-warn) !important;
  box-shadow: 0 0 30px rgba(var(--accent-rgb), 0.4);
  order: -1;
}

.spotlight-indicator {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--accent-warn);
  color: #000;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: bold;
  text-transform: uppercase;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Overlay UI */
.video-overlay {
  position: absolute;
  bottom: 8px;
  left: 8px;
  background: rgba(0, 0, 0, 0.6);
  padding: 4px 10px;
  border-radius: var(--radius-md);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 6px;
  z-index: 10;
}

.video-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background-color: #333;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  font-weight: 600;
  border: 2px solid var(--glass-border);
}

/* Icons */
.hand-raised-icon {
  background: #fbbc04;
  color: #000;
  border-radius: 4px;
  padding: 2px;
  font-size: 18px !important;
}

/* Bottom Bar */
.controls-bar {
  height: 80px;
  background: rgba(15, 22, 33, 0.8) !important;
  backdrop-filter: blur(25px) !important;
  -webkit-backdrop-filter: blur(25px) !important;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  border-top: 1px solid var(--glass-border) !important;
  z-index: 100;
}

.meeting-info {
  display: flex;
  flex-direction: column;
  width: 250px;
}

.meeting-title {
  font-size: 15px;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.meeting-subtitle {
  font-size: 12px;
  color: var(--text-dim);
}

.controls-container {
  display: flex;
  gap: 15px;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.control-btn {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  cursor: pointer;
  min-width: 70px;
  height: 56px;
  padding: 6px 10px;
  border-radius: 12px;
  transition: var(--transition);
}

.dropdown-menu {
  z-index: 1050 !important;
}

.control-btn:hover {
  background-color: rgba(255, 255, 255, 0.08) !important;
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.control-btn .material-icons {
  font-size: 20px;
}

.control-btn span:last-child {
  font-size: 10px;
  color: var(--text-dim);
}

.control-btn.active {
  color: var(--primary-color) !important;
  background-color: rgba(45, 140, 255, 0.08) !important;
  border-color: rgba(45, 140, 255, 0.3) !important;
}

.control-btn.active .material-icons {
  color: var(--primary-color);
}

.control-btn.red {
  color: var(--accent-danger);
}

.leave-btn {
  font-weight: bold;
  color: var(--accent-danger) !important;
}

/* Side Actions */
.side-actions {
  display: flex;
  gap: 5px;
  width: 250px;
  justify-content: flex-end;
}

/* Sidebars */
.sidebar {
  position: fixed;
  top: 58px;
  /* Account for navbar + margin */
  right: -360px;
  width: 350px;
  height: calc(100vh - 150px);
  background-color: var(--bg-panel);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  z-index: 100;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  box-shadow: -5px 0 20px rgba(0, 0, 0, 0.5);
}

.sidebar.open {
  right: 10px;
}

.sidebar-header {
  padding: 15px;
  border-bottom: 1px solid #333;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sidebar-content {
  flex: 1;
  overflow-y: auto;
  padding: 15px;
}

/* In-Call Chat */
.message-text {
  background: rgba(255, 255, 255, 0.02) !important;
  border: 1px solid var(--glass-border) !important;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 13px;
  margin-top: 4px;
}

.chat-input-container {
  padding: 15px;
  border-top: 1px solid var(--glass-border) !important;
  display: flex;
  gap: 10px;
}

.chat-input {
  flex: 1;
  background: rgba(0, 0, 0, 0.2) !important;
  border: 1px solid var(--glass-border) !important;
  color: white;
  padding: 8px 15px;
  border-radius: 10px !important;
  font-size: 13px;
  transition: var(--transition);
}

.chat-input:focus {
  border-color: var(--primary-color) !important;
  box-shadow: 0 0 0 3px rgba(45, 140, 255, 0.15) !important;
  outline: none;
}

/* Screen Sharing Logic */
.video-grid.screen-share-active {
  display: grid !important;
  grid-template-columns: 1fr 300px !important;
  grid-template-areas: "screen sidebar" !important;
  gap: 15px;
}

.screen-column {
  grid-area: screen;
  background: #000;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 2px solid var(--primary-color);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.participants-column {
  grid-area: sidebar;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  max-height: 100%;
  padding-right: 5px;
}

.floating-stop-btn {
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.6);
  border-radius: 50px !important;
  padding: 8px 20px !important;
  font-weight: 600 !important;
  border: none !important;
  background: var(--accent-danger) !important;
  z-index: 100 !important;
}

.floating-stop-btn:hover {
  background: #ff5252 !important;
  transform: scale(1.05);
}

.participants-column .video-container {
  aspect-ratio: 16/9;
}

#screen-share-container {
  width: 100%;
  height: 100%;
  border-radius: 0;
  border: none;
  background: #000;
}

#screen-share-container video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* Custom Titlebar Styles (Navbar header for Web) */
.custom-titlebar {
  height: 48px;
  background: rgba(10, 15, 25, 0.95);
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  user-select: none;
  z-index: 10000;
  flex-shrink: 0;
}

.titlebar-drag-area {
  display: flex;
  align-items: center;
  gap: 10px;
}

.titlebar-logo {
  width: 24px;
  height: 24px;
  border-radius: 50%;
}

.titlebar-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  letter-spacing: 0.2px;
}

/* Horizontal to Vertical dropup menu translation for collapsed items */
#moreControlsList {
  background: rgba(15, 22, 33, 0.95) !important;
  border: 1px solid var(--glass-border) !important;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5) !important;
  border-radius: 12px !important;
  padding: 8px !important;
  min-width: 180px;
}

#moreControlsList .control-btn {
  flex-direction: row !important;
  align-items: center !important;
  justify-content: flex-start !important;
  gap: 12px !important;
  width: 100% !important;
  height: 40px !important;
  background: transparent !important;
  border: none !important;
  padding: 8px 16px !important;
  border-radius: 8px !important;
  text-align: left !important;
  transform: none !important;
  box-shadow: none !important;
}

#moreControlsList .control-btn:hover {
  background: rgba(255, 255, 255, 0.05) !important;
}

#moreControlsList .control-btn .material-icons {
  font-size: 18px !important;
}

#moreControlsList .control-btn span:last-child {
  font-size: 13px !important;
  color: var(--text-main) !important;
}

/* Flyout style for nested dropups inside collapsed more menu */
#moreControlsList .dropup {
  position: relative;
  width: 100%;
}

#moreControlsList .dropup .dropdown-menu {
  position: absolute;
  top: 0 !important;
  bottom: auto !important;
  left: 100% !important;
  transform: translateX(4px) !important;
  margin: 0;
  display: none;
}

#moreControlsList .dropup:hover .dropdown-menu,
#moreControlsList .dropup:focus-within .dropdown-menu,
#moreControlsList .dropup .dropdown-menu.show {
  display: block !important;
}

/* Responsive */
@media (max-width: 1050px) {
  .meeting-info {
    display: none;
  }

  .side-actions {
    width: auto;
  }
}

@media (max-width: 991px) {
  .video-grid[data-view="gallery"] {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 8px;
  }

  .video-grid[data-view="speaker"] {
    grid-template-areas: "speaker" "list";
    grid-template-columns: 1fr;
    grid-template-rows: (auto-fit, minmax(200px, 1fr)) 150px;
  }

  .sidebar {
    width: 100%;
    right: -100%;
    top: 48px;
    height: calc(100vh - 128px);
    border-radius: 0;
    margin: 0;
  }

  .sidebar.open {
    right: 0;
  }
}

@media (max-width: 768px) {
  .controls-bar {
    padding: 0 10px;
  }

  .side-actions {
    display: none;
  }
}

@media (max-width: 480px) {
  .video-grid[data-view="gallery"] {
    grid-template-columns: 1fr;
  }

  .video-container {
    aspect-ratio: 16 / 9;
  }

  .video-avatar {
    width: 60px;
    height: 60px;
    font-size: 24px;
  }
}

/* Whiteboard Styles */
.whiteboard-container {
  position: absolute;
  top: 20px;
  left: 20px;
  right: 20px;
  bottom: 90px;
  z-index: 50;
  display: flex;
  flex-direction: column;
  pointer-events: auto;
  background: #121212;
}

.whiteboard-toolbar {
  background: #202124;
  border-bottom: 1px solid #3c4043;
}

#whiteboardCanvas {
  flex-grow: 1;
  cursor: crosshair;
  touch-action: none;
}

/* Visibility Helpers */
.d-none {
  display: none !important;
}

.d-instructor-only,
.d-student-only {
  display: none !important;
}

body.instructor-mode .d-instructor-only {
  display: inline-block !important;
}

body.student-mode .d-student-only {
  display: inline-block !important;
}

/* Whiteboard Close, Reactions, and Sound Effects */
.floating-reaction-spawn {
  position: fixed;
  bottom: 90px;
  z-index: 10000;
  font-size: 32px;
  pointer-events: none;
  user-select: none;
}

@keyframes floatWavyA {
  0% {
    transform: translateY(0) translateX(0) scale(0.3);
    opacity: 0;
  }

  15% {
    opacity: 1;
    transform: translateY(-60px) translateX(15px) scale(1.2);
  }

  50% {
    transform: translateY(-200px) translateX(-20px) scale(1);
  }

  80% {
    opacity: 0.8;
    transform: translateY(-380px) translateX(15px) scale(0.8);
  }

  100% {
    transform: translateY(-500px) translateX(-5px) scale(0.6);
    opacity: 0;
  }
}

@keyframes floatWavyB {
  0% {
    transform: translateY(0) translateX(0) scale(0.3);
    opacity: 0;
  }

  15% {
    opacity: 1;
    transform: translateY(-60px) translateX(-15px) scale(1.2);
  }

  50% {
    transform: translateY(-200px) translateX(20px) scale(1);
  }

  80% {
    opacity: 0.8;
    transform: translateY(-380px) translateX(-20px) scale(0.8);
  }

  100% {
    transform: translateY(-500px) translateX(5px) scale(0.6);
    opacity: 0;
  }
}

.reaction-animation-a {
  animation: floatWavyA 2.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.reaction-animation-b {
  animation: floatWavyB 2.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

/* Glass Overrides for standard panels */
.bg-dark {
  background-color: rgba(15, 22, 33, 0.95) !important;
}

.bg-darker {
  background-color: rgba(10, 15, 25, 0.95) !important;
}

.border-secondary {
  border-color: var(--glass-border) !important;
}

.card {
  background: rgba(15, 22, 33, 0.6) !important;
  backdrop-filter: blur(20px) !important;
  -webkit-backdrop-filter: blur(20px) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: var(--radius-lg) !important;
}

.dropdown-menu {
  background: rgba(15, 22, 33, 0.95) !important;
  backdrop-filter: blur(25px) !important;
  -webkit-backdrop-filter: blur(25px) !important;
  border: 1px solid var(--glass-border) !important;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5) !important;
  border-radius: 12px !important;
}

.dropdown-item {
  color: var(--text-dim) !important;
  font-size: 13px !important;
  transition: var(--transition);
}

.dropdown-item:hover {
  background-color: rgba(255, 255, 255, 0.05) !important;
  color: var(--text-main) !important;
}

.toast {
  background: rgba(15, 22, 33, 0.9) !important;
  backdrop-filter: blur(20px) !important;
  -webkit-backdrop-filter: blur(20px) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: 12px !important;
}

.modal-content.glass-modal {
  background: rgba(15, 22, 33, 0.95) !important;
  backdrop-filter: blur(30px) !important;
  -webkit-backdrop-filter: blur(30px) !important;
  border: 1px solid var(--glass-border) !important;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6) !important;
}

.form-control.glass-input {
  background: rgba(0, 0, 0, 0.2) !important;
  border: 1px solid var(--glass-border) !important;
  color: var(--text-main) !important;
  border-radius: 10px !important;
}

.form-control.glass-input:focus {
  border-color: var(--primary-color) !important;
  box-shadow: 0 0 0 3px rgba(45, 140, 255, 0.15) !important;
  outline: none;
}