/* ============================================
   BASE STYLES — APPLE-INSPIRED
   ============================================ */

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

html, body {
  height: 100%;
  width: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', sans-serif;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  color: #1d1d1f;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   LOGIN PAGE — APPLE STYLE
   ============================================ */

.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

.login-container {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-card {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-radius: 24px;
  padding: 48px;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.login-card h1 {
  font-size: 32px;
  margin-bottom: 36px;
  text-align: center;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: #1d1d1f;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  margin-bottom: 10px;
  font-size: 13px;
  font-weight: 600;
  color: #6f6f77;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #e5e5e7;
  background-color: #f9f9fb;
  color: #1d1d1f;
  border-radius: 12px;
  font-size: 15px;
  transition: all 0.2s ease;
}

.form-group input:focus {
  outline: none;
  border-color: #0a84ff;
  background-color: #ffffff;
  box-shadow: 0 0 0 2px rgba(10, 132, 255, 0.1);
}

.form-group input::placeholder {
  color: #a1a1a6;
}

.error-message {
  color: #ff3b30;
  font-size: 13px;
  margin-bottom: 20px;
  text-align: center;
  min-height: 18px;
  font-weight: 500;
}

.btn {
  padding: 12px 24px;
  border: none;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
  letter-spacing: -0.3px;
}

.btn-primary {
  width: 100%;
  background: linear-gradient(135deg, #0a84ff 0%, #0071e3 100%);
  color: white;
  margin-top: 8px;
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(10, 132, 255, 0.3);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn-primary:disabled {
  background: #e5e5e7;
  color: #a1a1a6;
  cursor: not-allowed;
}

/* ============================================
   CALL PAGE — APPLE STYLE
   ============================================ */

.call-page {
  display: flex;
  flex-direction: column;
  position: relative;
  background: linear-gradient(180deg, #f5f7fa 0%, #e8ecf1 100%);
  height: 100vh;
}

.error-banner {
  background: linear-gradient(90deg, #ff3b30, #ff453a);
  color: white;
  padding: 14px 16px;
  text-align: center;
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 4px 12px rgba(255, 59, 48, 0.2);
}

/* ============================================
   VIDEO GRID
   ============================================ */

/* ============================================
   CALL LAYOUT — FIXED SCREEN SHARE + CAMERA SIDEBAR
   ============================================ */

.call-container {
  flex: 1;
  display: flex;
  gap: 12px;
  padding: 16px;
  overflow: hidden;
}

/* Left side: Screen share area (fixed, always visible) */
.screen-share-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.6);
  min-height: 0;
}

.screen-share-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  color: #86868b;
}

.placeholder-content {
  text-align: center;
}

.placeholder-icon {
  font-size: 64px;
  display: block;
  margin-bottom: 16px;
  opacity: 0.3;
}

.screen-share-placeholder p {
  font-size: 16px;
  font-weight: 500;
  margin: 0;
  opacity: 0.5;
  letter-spacing: -0.3px;
}

#screen-share-video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #000;
}

/* Right side: Camera feeds sidebar */
.camera-sidebar {
  width: 220px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 4px;
}

.camera-sidebar::-webkit-scrollbar {
  width: 6px;
}

.camera-sidebar::-webkit-scrollbar-track {
  background: transparent;
}

.camera-sidebar::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.1);
  border-radius: 3px;
}

.camera-sidebar::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.2);
}

.video-tile {
  position: relative;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 14px;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.6);
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  flex-shrink: 0;
}

.video-tile:hover {
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
  transform: translateY(-2px);
}

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

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

.video-tile.local {
  background: linear-gradient(135deg, #f5f7fa, #e8ecf1);
}

.name-label {
  position: absolute;
  bottom: 12px;
  left: 12px;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  color: #fff;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  max-width: calc(100% - 24px);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  letter-spacing: -0.2px;
}

.muted-indicator {
  display: inline-block;
  margin-left: 6px;
  font-size: 11px;
}

/* ============================================
   CONTROLS — APPLE STYLE
   ============================================ */

.controls {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(24px);
  padding: 14px 28px;
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  z-index: 100;
  border: 1px solid rgba(255, 255, 255, 0.7);
}

.btn-control {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  width: 47px;
  height: 47px;
  padding: 0;
  border: none;
  border-radius: 10px;
  background: #f5f5f7;
  color: #1d1d1f;
  font-size: 10px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  letter-spacing: -0.2px;
}

.btn-control:hover {
  background: #efefef;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.btn-control:active {
  transform: translateY(0);
}

.btn-control .icon {
  font-size: 17px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease;
  height: 18px;
}

.btn-control:hover .icon {
  transform: scale(1.08);
}

.btn-control .label {
  font-size: 7px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

/* Button states with Apple colors */

/* Camera button states */
.btn-camera {
  background: linear-gradient(135deg, rgba(10, 132, 255, 0.1), rgba(10, 132, 255, 0.05));
}

.btn-camera:hover {
  background: linear-gradient(135deg, rgba(10, 132, 255, 0.2), rgba(10, 132, 255, 0.1));
}

.btn-camera.active {
  color: #0a84ff;
  background: linear-gradient(135deg, rgba(10, 132, 255, 0.15), rgba(10, 132, 255, 0.08));
}

.btn-camera.inactive {
  color: #ff3b30;
  background: linear-gradient(135deg, rgba(255, 59, 48, 0.15), rgba(255, 59, 48, 0.08));
}

/* Mic button states */
.btn-mic {
  background: linear-gradient(135deg, rgba(10, 132, 255, 0.1), rgba(10, 132, 255, 0.05));
}

.btn-mic:hover {
  background: linear-gradient(135deg, rgba(10, 132, 255, 0.2), rgba(10, 132, 255, 0.1));
}

.btn-mic.active {
  color: #0a84ff;
  background: linear-gradient(135deg, rgba(10, 132, 255, 0.15), rgba(10, 132, 255, 0.08));
}

.btn-mic.inactive {
  color: #ff3b30;
  background: linear-gradient(135deg, rgba(255, 59, 48, 0.15), rgba(255, 59, 48, 0.08));
}

/* Share button states */
.btn-share {
  background: linear-gradient(135deg, rgba(52, 199, 89, 0.1), rgba(52, 199, 89, 0.05));
  color: #34c759;
}

.btn-share:hover {
  background: linear-gradient(135deg, rgba(52, 199, 89, 0.2), rgba(52, 199, 89, 0.1));
}

.btn-share.active {
  color: #ff9500;
  background: linear-gradient(135deg, rgba(255, 149, 0, 0.15), rgba(255, 149, 0, 0.08));
  animation: pulse-share 1.5s ease-in-out infinite;
}

@keyframes pulse-share {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

/* Leave button (always red) */
.btn-leave {
  color: #ff3b30;
  background: linear-gradient(135deg, rgba(255, 59, 48, 0.15), rgba(255, 59, 48, 0.08));
}

.btn-leave:hover {
  background: linear-gradient(135deg, rgba(255, 59, 48, 0.25), rgba(255, 59, 48, 0.15));
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
  .login-card {
    padding: 36px;
    max-width: 90%;
  }

  .login-card h1 {
    font-size: 28px;
    margin-bottom: 28px;
  }

  .call-container {
    flex-direction: column;
    gap: 12px;
    padding: 12px;
  }

  .screen-share-container {
    flex: 1;
    min-height: 300px;
  }

  .camera-sidebar {
    width: 100%;
    flex-direction: row;
    overflow-x: auto;
    overflow-y: hidden;
    max-height: 160px;
  }

  .video-tile {
    min-width: 200px;
  }

  .controls {
    gap: 6px;
    padding: 12px 20px;
    bottom: 16px;
  }

  .btn-control {
    width: 41px;
    height: 41px;
  }

  .btn-control .icon {
    font-size: 15px;
  }

  .btn-control .label {
    font-size: 7px;
  }
  }

  .btn-control {
    width: 43px;
    height: 43px;
  }

  .btn-control .icon {
    font-size: 16px;
  }

  .btn-control .label {
    font-size: 7px;
  }
}

@media (max-width: 480px) {
  .login-card {
    padding: 28px 24px;
    border-radius: 20px;
  }

  .call-container {
    flex-direction: column;
    gap: 8px;
    padding: 8px;
  }

  .screen-share-container {
    flex: 1;
    min-height: 250px;
    border-radius: 16px;
  }

  .camera-sidebar {
    width: 100%;
    flex-direction: row;
    overflow-x: auto;
    overflow-y: hidden;
    max-height: 140px;
    gap: 8px;
  }

  .video-tile {
    min-width: 160px;
    border-radius: 12px;
  }

  .controls {
    width: calc(100vw - 24px);
    max-width: none;
    gap: 10px;
    padding: 10px 12px;
  }

  .btn-control {
    width: 37px;
    height: 37px;
    font-size: 10px;
    border-radius: 9px;
  }

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

/* ============================================
   ANIMATIONS & TRANSITIONS
   ============================================ */

@media (prefers-reduced-motion: no-preference) {
  * {
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  }

  .video-tile {
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  }

  .btn-control {
    transition: all 0.2s ease;
  }
}

/* Dark mode support (optional) */
@media (prefers-color-scheme: dark) {
  body {
    background: linear-gradient(135deg, #1d1d1f 0%, #424245 100%);
    color: #f5f5f7;
  }

  .login-card {
    background: rgba(30, 30, 32, 0.95);
  }

  .login-card h1 {
    color: #f5f5f7;
  }

  .form-group input {
    background-color: #3a3a3f;
    color: #f5f5f7;
    border-color: #424245;
  }

  .form-group input:focus {
    border-color: #0a84ff;
    background-color: #424245;
  }

  .video-tile {
    background: rgba(60, 60, 67, 0.8);
  }

  .video-tile.local {
    background: linear-gradient(135deg, #1d1d1f, #3a3a3f);
  }

  .controls {
    background: rgba(30, 30, 32, 0.88);
  }

  .btn-control {
    background: #3a3a3f;
  }

  .btn-control:hover {
    background: #424245;
  }
}