/* Mars Exhibition Styles - Responsive Layout */

:root {
  --astropolis-green: #339966;
  --mars-red: #c1440e;
  --background-light: #f5f5f5;
  --text-primary: #1a1a1a;
  --text-secondary: #666;
  --border-color: #e0e0e0;
  --sidebar-width: 280px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.8;
  color: var(--text-primary);
  background-color: var(--background-light);
  display: flex;
  min-height: 100vh;
}

/* Sidebar (Desktop only) */
.sidebar {
  display: none; /* Hidden on mobile by default */
}

/* Desktop: Show sidebar */
@media (min-width: 1025px) {
  .sidebar {
    display: flex;
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background-color: white;
    border-right: 3px solid var(--astropolis-green);
    padding: 30px 20px;
    flex-direction: column;
    align-items: center;
    gap: 30px;
    z-index: 100;
  }
}

.sidebar .logo img {
  max-width: 180px;
  width: 100%;
  height: auto;
}

.sidebar .language-selector {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
}

.sidebar .lang-btn {
  width: 100%;
}

/* Mobile Header (shown by default for mobile) */
.mobile-header {
  display: block;
  padding: 8px 12px;
  background-color: white;
  border-bottom: 2px solid var(--astropolis-green);
}

/* Desktop: Hide mobile header */
@media (min-width: 1025px) {
  .mobile-header {
    display: none;
  }
}

.mobile-header .logo {
  text-align: center;
  margin-bottom: 6px;
}

.mobile-header .logo img {
  max-width: 50px;
  height: auto;
}

.mobile-header .language-selector {
  display: flex;
  justify-content: center;
  gap: 5px;
  flex-wrap: wrap;
}

/* Main Container */
.main-container {
  flex: 1;
  margin-left: 0;
  max-width: 100%;
  width: 100%;
  background-color: white;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

/* Desktop: Add sidebar margin */
@media (min-width: 1025px) {
  .main-container {
    margin-left: var(--sidebar-width);
    max-width: 900px;
  }
}

/* Navigation at Top */
.panel-navigation.top {
  display: grid;
  grid-template-columns: 120px 1fr 120px;
  align-items: start;
  gap: 20px;
  padding: 20px;
  background-color: white;
  border-bottom: 2px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 50;
}

.panel-title-nav {
  text-align: center;
}

.panel-title-nav h1 {
  color: var(--astropolis-green);
  font-size: 1.8em;
  font-weight: 600;
  margin-bottom: 5px;
}

#panel-info {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
}

/* Language Buttons */
.lang-btn {
  padding: 10px 24px;
  border: 2px solid var(--border-color);
  background-color: white;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  border-radius: 10px;
  transition: all 0.3s ease;
}

.lang-btn:hover {
  border-color: var(--astropolis-green);
  background-color: rgba(51, 153, 102, 0.05);
}

.lang-btn.active {
  background-color: var(--astropolis-green);
  color: white;
  border-color: var(--astropolis-green);
}

/* Content Type Toggle */
.content-toggle {
  display: flex;
  gap: 0;
}

.toggle-btn {
  padding: 12px 28px;
  border: 2px solid var(--border-color);
  background-color: white;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 15px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.toggle-btn:first-child {
  border-radius: 10px 0 0 10px;
  border-right: 1px solid var(--border-color);
}

.toggle-btn:last-child {
  border-radius: 0 10px 10px 0;
  border-left: 1px solid var(--border-color);
}

.toggle-btn:hover:not(:disabled) {
  background-color: rgba(51, 153, 102, 0.08);
}

.toggle-btn.active {
  background-color: var(--astropolis-green);
  color: white;
  border-color: var(--astropolis-green);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15);
}

.toggle-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  background-color: #f5f5f5;
  color: #999;
  border-color: #ddd;
}

/* Index/Overview Styles */
.index-view {
  padding: 30px;
}

.index-title {
  color: var(--astropolis-green);
  font-size: 2em;
  font-weight: 600;
  text-align: center;
  margin-bottom: 10px;
}

.index-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.1em;
  margin-bottom: 30px;
}

.panel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 15px;
  max-width: 1000px;
  margin: 0 auto;
}

.panel-card {
  aspect-ratio: 1;
  border: 2px solid var(--border-color);
  border-radius: 10px;
  background-color: white;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1.2em;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  position: relative;
}

.panel-card:hover {
  border-color: var(--astropolis-green);
  background-color: rgba(51, 153, 102, 0.05);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.panel-card.available {
  border-color: var(--astropolis-green);
}

.panel-card.unavailable {
  opacity: 0.5;
  cursor: not-allowed;
}

.panel-card.unavailable:hover {
  transform: none;
  box-shadow: none;
  background-color: white;
  border-color: var(--border-color);
}

.panel-number {
  font-size: 1.5em;
  color: var(--astropolis-green);
}

.panel-card.unavailable .panel-number {
  color: var(--text-secondary);
}

.panel-status {
  font-size: 0.6em;
  color: var(--text-secondary);
  font-weight: 400;
}

/* Content Toggle Wrapper */
.content-toggle-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  background-color: var(--background-light);
  gap: 20px;
}

.index-btn {
  padding: 12px 24px;
  border: 2px solid var(--astropolis-green);
  background-color: white;
  color: var(--astropolis-green);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border-radius: 10px;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.index-btn .icon-large {
  font-size: 1.4em;
  vertical-align: middle;
}

.index-btn:hover {
  background-color: var(--astropolis-green);
  color: white;
}

/* Content Area */
#content-area {
  padding: 30px;
  min-height: 400px;
}

.content-section {
  display: none;
  animation: fadeIn 0.3s ease;
}

.content-section.active {
  display: block;
}

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

.content-section h2 {
  color: var(--astropolis-green);
  margin-bottom: 20px;
  font-size: 1.6em;
  font-weight: 600;
}

.content-section p {
  margin-bottom: 20px;
  line-height: 1.9;
  text-align: justify;
  font-size: 16px;
}

.loading {
  text-align: center;
  color: var(--text-secondary);
  font-style: italic;
  padding: 40px 0;
}

/* Not Available Message */
.not-available {
  text-align: center;
  padding: 60px 20px;
  background-color: var(--background-light);
  border-radius: 10px;
  margin: 20px 0;
}

.not-available h2 {
  color: var(--astropolis-green);
  margin-bottom: 15px;
  font-size: 1.5em;
}

.not-available p {
  color: var(--text-secondary);
  margin-bottom: 10px;
  font-size: 16px;
}

/* Audio Player */
.audio-player {
  background-color: white;
  border-bottom: 2px solid var(--border-color);
  padding: 12px 20px;
}

.audio-controls-compact {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 100%;
}

.audio-control-btn {
  padding: 8px 16px;
  border: 2px solid var(--astropolis-green);
  background-color: white;
  color: var(--astropolis-green);
  font-size: 18px;
  cursor: pointer;
  border-radius: 8px;
  transition: all 0.2s ease;
  min-width: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.audio-control-btn:hover {
  background-color: var(--astropolis-green);
  color: white;
}

.audio-control-btn.playing {
  background-color: var(--astropolis-green);
  color: white;
}

.audio-control-btn-small {
  padding: 6px 12px;
  border: 2px solid var(--astropolis-green);
  background-color: white;
  color: var(--astropolis-green);
  font-size: 14px;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.audio-control-btn-small:hover {
  background-color: var(--astropolis-green);
  color: white;
}

.audio-progress-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.audio-time-display {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-secondary);
  font-weight: 500;
}

.audio-progress-bar {
  width: 100%;
  height: 8px;
  -webkit-appearance: none;
  appearance: none;
  background: #d0d0d0;
  border-radius: 4px;
  outline: none;
  cursor: pointer;
  border: 1px solid #b0b0b0;
}

.audio-progress-bar::-webkit-slider-track {
  width: 100%;
  height: 8px;
  background: #d0d0d0;
  border-radius: 4px;
}

.audio-progress-bar::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  background: var(--astropolis-green);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 2px solid white;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.audio-progress-bar::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.audio-progress-bar::-moz-range-track {
  width: 100%;
  height: 8px;
  background: #d0d0d0;
  border-radius: 4px;
}

.audio-progress-bar::-moz-range-thumb {
  width: 18px;
  height: 18px;
  background: var(--astropolis-green);
  border: 2px solid white;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.audio-progress-bar::-moz-range-thumb:hover {
  transform: scale(1.2);
}

.audio-speed-control {
  display: flex;
  align-items: center;
}

.audio-speed-btn {
  padding: 6px 12px;
  border: 2px solid var(--astropolis-green);
  background-color: white;
  color: var(--astropolis-green);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.2s ease;
  min-width: 50px;
}

.audio-speed-btn:hover {
  background-color: var(--astropolis-green);
  color: white;
}

.audio-speed-btn.active {
  background-color: var(--astropolis-green);
  color: white;
  font-weight: 700;
}

/* Navigation Buttons */
.nav-btn {
  padding: 10px 20px;
  border: 2px solid var(--astropolis-green);
  background-color: white;
  color: var(--astropolis-green);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  border-radius: 10px;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.nav-btn:hover:not(:disabled) {
  background-color: var(--astropolis-green);
  color: white;
}

.nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  border-color: var(--border-color);
  color: var(--text-secondary);
}

/* Mobile Responsive */
@media (max-width: 1024px) {
  body {
    flex-direction: column;
  }

  /* Adjust navigation for mobile */
  .panel-navigation.top {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 8px;
    padding: 8px 12px;
  }

  .panel-title-nav {
    grid-column: 1 / -1;
    order: 1;
  }

  .panel-title-nav h1 {
    font-size: 1.1em;
    margin-bottom: 2px;
  }

  #panel-info {
    font-size: 11px;
  }

  /* Put navigation buttons side by side */
  #prev-panel {
    grid-column: 1;
  }

  #next-panel {
    grid-column: 2;
  }

  .nav-btn {
    padding: 8px 10px;
    font-size: 12px;
  }

  /* Audio player on mobile */
  .audio-player {
    padding: 8px 12px;
  }

  .audio-controls-compact {
    gap: 6px;
  }

  .audio-control-btn {
    padding: 6px 12px;
    font-size: 16px;
    min-width: 50px;
  }

  .audio-control-btn-small {
    padding: 5px 8px;
    font-size: 11px;
  }

  .audio-progress-bar {
    height: 6px;
  }

  .audio-progress-bar::-webkit-slider-thumb {
    width: 16px;
    height: 16px;
  }

  .audio-progress-bar::-moz-range-thumb {
    width: 16px;
    height: 16px;
  }

  .audio-time-display {
    font-size: 10px;
  }

  .audio-speed-btn {
    padding: 5px 10px;
    font-size: 11px;
    min-width: 45px;
  }

  /* Content padding */
  #content-area {
    padding: 20px 15px;
  }

  .content-section p {
    font-size: 18px !important;
    line-height: 1.8 !important;
    text-align: left !important; /* Left align is easier to read on mobile */
  }

  .content-section h2 {
    font-size: 1.5em !important;
  }

  .not-available h2 {
    font-size: 1.5em !important;
  }

  .not-available p {
    font-size: 17px !important;
    line-height: 1.6 !important;
  }

  /* Index/Grid responsive */
  .index-view {
    padding: 20px;
  }

  .index-subtitle {
    font-size: 1em;
  }

  .panel-grid {
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: 10px;
  }

  .panel-card {
    font-size: 1em;
  }

  .panel-number {
    font-size: 1.3em;
  }

  /* Toggle wrapper on mobile */
  .content-toggle-wrapper {
    flex-direction: column;
    gap: 8px;
    padding: 8px 12px;
  }

  /* Index button and toggle wrapper on mobile - match widths */
  .index-btn,
  .content-toggle {
    width: 100%;
  }

  .index-btn {
    padding: 8px 16px;
    font-size: 13px;
  }

  /* Toggle buttons on mobile */
  .content-toggle {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
  }

  .toggle-btn {
    padding: 8px 12px;
    font-size: 12px;
    border-radius: 8px !important;
    border: 2px solid var(--border-color) !important;
  }

  .toggle-btn:first-child {
    border-right: 2px solid var(--border-color) !important;
  }

  .toggle-btn:last-child {
    border-left: 2px solid var(--border-color) !important;
  }

  .mobile-header .lang-btn {
    padding: 6px 10px;
    font-size: 11px;
  }
}

/* Small mobile */
@media (max-width: 480px) {
  .mobile-header {
    padding: 6px 10px;
  }

  .mobile-header .logo img {
    max-width: 45px;
  }

  .mobile-header .logo {
    margin-bottom: 4px;
  }

  .panel-title-nav h1 {
    font-size: 1em;
  }

  #panel-info {
    font-size: 10px;
  }

  .panel-navigation.top {
    padding: 6px 10px;
    gap: 6px;
  }

  .nav-btn {
    padding: 6px 8px;
    font-size: 11px;
  }

  .mobile-header .lang-btn {
    padding: 5px 8px;
    font-size: 10px;
  }

  .content-toggle-wrapper {
    padding: 6px 10px;
    gap: 6px;
  }

  .index-btn {
    padding: 7px 14px;
    font-size: 12px;
  }

  .toggle-btn {
    padding: 7px 10px;
    font-size: 11px;
  }

  #content-area {
    padding: 18px 12px;
  }

  .content-section p {
    font-size: 17px !important;
    line-height: 1.75 !important;
    text-align: left !important; /* Left align is easier to read on mobile */
  }

  .content-section h2 {
    font-size: 1.4em !important;
  }

  .not-available h2 {
    font-size: 1.4em !important;
  }

  .not-available p {
    font-size: 16px !important;
    line-height: 1.6 !important;
  }

  /* Video player on mobile */
  .video-container {
    margin-top: 24px;
  }

  .video-wrapper {
    margin-bottom: 20px;
    padding: 15px;
  }

  .video-player-container {
    max-width: 100%;
  }

  .video-player-container video {
    max-width: 100%;
  }
}

/* Video player styles */
.video-error-message {
  background: #fff3cd;
  border: 2px solid #ffc107;
  border-radius: 8px;
  padding: 20px;
  color: #856404;
  text-align: center;
}

.video-error-message p {
  margin-bottom: 8px;
  line-height: 1.6;
}

.video-error-message strong {
  color: #856404;
  font-size: 1.1em;
}

.video-container {
  margin-top: 40px;
  padding-top: 30px;
  border-top: 2px solid rgba(255, 107, 53, 0.2);
}

/* When videos are the only content (no text), remove top spacing */
#extra-content:empty + .video-container,
#extra-content > .video-container:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.video-wrapper {
  margin-bottom: 30px;
  background: rgba(0, 0, 0, 0.05);
  border-radius: 12px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Container for video + overlay positioning */
.video-player-container {
  position: relative;
  width: 100%;
  max-width: 800px;
  display: inline-block;
}

.video-player-container video {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  background: #000;
}

/* Video play overlay - shows over first frame */
.video-play-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 10;
}

.video-play-overlay:hover {
  background: rgba(0, 0, 0, 0.5);
}

.play-button-circle {
  pointer-events: none;
}

.play-button-circle svg {
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.5));
  transition: transform 0.2s ease;
}

.video-play-overlay:hover .play-button-circle svg {
  transform: scale(1.15);
}

.video-custom-controls {
  margin-top: 15px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: #333;
}

.speed-control {
  padding: 6px 12px;
  border-radius: 6px;
  border: 2px solid #ff6b35;
  background: white;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
}

.speed-control:hover {
  background: #fff5f2;
  border-color: #ff5722;
}

.speed-control:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.2);
}

.subtitle-toggle {
  padding: 6px 12px;
  border-radius: 6px;
  border: 2px solid #999;
  background: white;
  font-size: 14px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.2s;
  color: #666;
  font-family: monospace;
}

.subtitle-toggle:hover {
  background: #f5f5f5;
  border-color: #666;
}

.subtitle-toggle.active {
  background: #339966;
  border-color: #339966;
  color: white;
}

.subtitle-toggle.active:hover {
  background: #2d8659;
  border-color: #2d8659;
}

/* Mobile-specific video styles */
@media (max-width: 768px) {
  .video-wrapper {
    padding: 15px;
    margin-bottom: 20px;
  }

  .video-player-container video {
    border-radius: 6px;
  }

  .video-custom-controls {
    font-size: 13px;
    margin-top: 12px;
  }

  .speed-control {
    padding: 5px 10px;
    font-size: 13px;
  }

  .subtitle-toggle {
    padding: 5px 10px;
    font-size: 13px;
  }
}