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

:root {
  --primary-dark: #0a0a1a;
  --terminal-bg: #00051a;
  --terminal-border: #1a3c5a;
  --accent-blue: #00a8ff;
  --accent-teal: #00ffd0;
  --accent-purple: #8a2be2;
  --accent-red: #ff0040;
  --panel-dark: #0d1a2a;
  --panel-light: #12203a;
  --text-primary: #e0f0ff;
  --text-secondary: #a0c0d0;
}

body {
  background: radial-gradient(
    circle at center,
    #0a1a2a 0%,
    #050a1f 70%,
    #000 100%
  );
  color: var(--text-primary);
  font-family: "Share Tech Mono", monospace;
  min-height: 100vh;
  overflow: hidden;
  position: relative;
}

/* Scanline effect */
.scanlines {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.15),
    rgba(0, 0, 0, 0.15) 1px,
    transparent 1px,
    transparent 2px
  );
  pointer-events: none;
  z-index: 100;
  animation: scanline 8s linear infinite;
}

/* Grid overlay */
.grid-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(rgba(0, 80, 120, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 80, 120, 0.1) 1px, transparent 1px);
  background-size: 30px 30px;
  pointer-events: none;
  z-index: 99;
}

.container {
  position: relative;
  z-index: 10;
  height: 100vh;
  display: flex;
  flex-direction: column;
}

/* HEADER STYLES */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 30px;
  position: relative;
}

.title-container {
  text-align: left;
  position: relative;
}

.title {
  font-family: "Orbitron", sans-serif;
  font-size: 2.2rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 4px;
  color: var(--accent-teal);
  text-shadow: 0 0 10px rgba(0, 255, 208, 0.7);
  margin: 0;
  animation: titleGlow 3s infinite alternate;
}

.subtitle {
  font-family: "Share Tech Mono", monospace;
  font-size: 0.9rem;
  color: var(--text-secondary);
  letter-spacing: 3px;
  margin-top: 5px;
}

.controls {
  display: flex;
  gap: 15px;
}

.control-btn {
  background: rgba(10, 30, 50, 0.5);
  border: 1px solid var(--accent-blue);
  color: var(--accent-blue);
  padding: 10px 15px;
  font-family: "Share Tech Mono", monospace;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.3s ease;
  border-radius: 3px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.control-btn:hover {
  background: rgba(0, 168, 255, 0.2);
  box-shadow: 0 0 15px rgba(0, 168, 255, 0.4);
}

/* MAIN CONTENT */
.visualizer-container {
  flex: 1;
  position: relative;
  overflow: hidden;
}

#visualizer-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 5;
}

.center-display {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  z-index: 20;
  width: 80%;
  max-width: 800px;
  transition: opacity 0.8s ease;
}

.center-title {
  font-family: "Orbitron", sans-serif;
  font-size: 3.5rem;
  color: var(--accent-teal);
  text-shadow: 0 0 20px rgba(0, 255, 208, 0.8);
  margin-bottom: 20px;
  letter-spacing: 6px;
  text-transform: uppercase;
  animation: pulseTitle 4s infinite alternate;
  padding-left: 200px;
}

.center-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  letter-spacing: 2px;
}

/* INPUT CONTAINER */
.video-input-container {
  background: rgba(10, 20, 40, 0.7);
  border: 1px solid var(--accent-blue);
  padding: 25px;
  border-radius: 5px;
  backdrop-filter: blur(5px);
  box-shadow: 0 0 30px rgba(0, 100, 200, 0.3);
}

.input-title {
  font-family: "Orbitron", sans-serif;
  font-size: 1.4rem;
  color: var(--accent-blue);
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.input-tabs {
  display: flex;
  margin-bottom: 15px;
  border-bottom: 1px solid var(--accent-blue);
}

.tab {
  flex: 1;
  padding: 10px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  border-bottom: 3px solid transparent;
}

.tab.active {
  border-bottom: 3px solid var(--accent-teal);
  background: rgba(0, 50, 100, 0.3);
}

.tab-content {
  display: none;
}

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

.url-input {
  width: 100%;
  background: rgba(0, 10, 30, 0.8);
  border: 1px solid var(--accent-blue);
  color: var(--accent-teal);
  padding: 15px;
  font-family: "Share Tech Mono", monospace;
  font-size: 1rem;
  margin-bottom: 20px;
  outline: none;
}

.url-input::placeholder {
  color: #3a6a8a;
}

.visualize-btn {
  background: linear-gradient(to right, #003366, #0066cc);
  border: 1px solid var(--accent-teal);
  color: var(--text-primary);
  padding: 15px 30px;
  font-family: "Orbitron", sans-serif;
  font-size: 1.2rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all 0.3s ease;
  width: 100%;
}

.visualize-btn:hover {
  background: linear-gradient(to right, #004488, #0088ff);
  box-shadow: 0 0 25px rgba(0, 255, 208, 0.6);
}

/* FOOTER */
.footer {
  padding: 20px 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.status-bar {
  display: flex;
  gap: 20px;
  font-size: 0.85rem;
}

.status-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.online {
  background-color: var(--accent-teal);
}
.secure {
  background-color: var(--accent-blue);
}
.warning {
  background-color: var(--accent-purple);
}

.audio-controls {
  display: flex;
  gap: 15px;
}

.audio-btn {
  background: rgba(10, 30, 50, 0.5);
  border: 1px solid var(--accent-blue);
  color: var(--accent-blue);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 1.2rem;
}

.audio-btn:hover {
  background: rgba(0, 168, 255, 0.3);
  box-shadow: 0 0 15px rgba(0, 168, 255, 0.4);
}

/* Visualization mode display */
.visualization-mode {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(0, 20, 40, 0.7);
  border: 1px solid var(--accent-teal);
  color: var(--accent-teal);
  padding: 8px 15px;
  border-radius: 20px;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  z-index: 30;
  box-shadow: 0 0 15px rgba(0, 255, 208, 0.3);
}

/* Visualization selector */
.visualization-selector {
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 30;
  background: rgba(0, 15, 30, 0.7);
  padding: 10px 15px;
  border-radius: 30px;
  border: 1px solid rgba(0, 168, 255, 0.3);
  backdrop-filter: blur(5px);
}

.vis-select-btn {
  background: rgba(0, 30, 60, 0.6);
  border: 1px solid var(--accent-purple);
  color: var(--text-secondary);
  padding: 8px 15px;
  border-radius: 20px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.vis-select-btn.active {
  background: rgba(138, 43, 226, 0.4);
  color: white;
  border-color: var(--accent-teal);
  box-shadow: 0 0 10px rgba(138, 43, 226, 0.5);
}

/* Loading indicator */
.loading-indicator {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 25;
  display: none;
  text-align: center;
}

.spinner {
  width: 60px;
  height: 60px;
  margin: 0 auto;
  border: 5px solid rgba(0, 168, 255, 0.3);
  border-top: 5px solid var(--accent-teal);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.loading-text {
  text-align: center;
  margin-top: 15px;
  color: var(--accent-teal);
  font-size: 1.2rem;
  letter-spacing: 2px;
}

/* Error message */
.error-message {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(40, 0, 0, 0.8);
  border: 1px solid var(--accent-red);
  padding: 20px;
  border-radius: 5px;
  z-index: 25;
  text-align: center;
  display: none;
  max-width: 80%;
  width: 400px;
}

.error-message h3 {
  color: var(--accent-red);
  margin-bottom: 10px;
}

/* ANIMATIONS */
@keyframes scanline {
  0% {
    transform: translateY(-100%);
  }
  100% {
    transform: translateY(100%);
  }
}

@keyframes titleGlow {
  0% {
    text-shadow: 0 0 10px rgba(0, 255, 208, 0.7);
  }
  100% {
    text-shadow: 0 0 20px rgba(0, 255, 208, 0.9),
      0 0 30px rgba(0, 200, 255, 0.5);
  }
}

@keyframes pulse {
  0% {
    opacity: 0.4;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0.4;
  }
}

@keyframes pulseTitle {
  0% {
    transform: translate(-50%, -50%) scale(1);
    text-shadow: 0 0 20px rgba(0, 255, 208, 0.8);
  }
  100% {
    transform: translate(-50%, -50%) scale(1.05);
    text-shadow: 0 0 30px rgba(0, 255, 208, 1), 0 0 50px rgba(0, 200, 255, 0.8);
  }
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
/* Mobile Responsive CSS */
@media (max-width: 1200px) {
  .center-title {
    font-size: 3rem;
    padding-left: 150px;
  }

  .video-input-container {
    padding: 20px;
  }
}

@media (max-width: 900px) {
  .title {
    font-size: 1.8rem;
  }

  .center-title {
    font-size: 2.5rem;
    padding-left: 100px;
  }

  .control-btn span {
    display: none;
  }

  .visualization-selector {
    flex-wrap: wrap;
    justify-content: center;
    width: 90%;
    bottom: 100px;
  }

  .vis-select-btn {
    padding: 6px 10px;
    font-size: 0.7rem;
  }

  .video-input-container {
    padding: 15px;
  }

  .input-title {
    font-size: 1.3rem;
  }

  .visualize-btn {
    padding: 12px 20px;
    font-size: 1.1rem;
  }
}

@media (max-width: 768px) {
  .header {
    padding: 15px 20px;
  }

  .title {
    font-size: 1.6rem;
  }

  .subtitle {
    font-size: 0.8rem;
  }

  .center-title {
    font-size: 2rem;
    padding-left: 0;
    margin-bottom: 15px;
  }

  .center-subtitle {
    font-size: 1rem;
    margin-bottom: 30px;
  }

  .video-input-container {
    padding: 15px;
  }

  .input-title {
    font-size: 1.2rem;
    margin-bottom: 15px;
  }

  .url-input {
    padding: 12px;
    font-size: 0.9rem;
    margin-bottom: 15px;
  }

  .visualize-btn {
    padding: 12px 15px;
    font-size: 1rem;
  }

  .footer {
    padding: 15px 20px;
  }

  .status-bar {
    font-size: 0.8rem;
  }

  .audio-btn {
    width: 35px;
    height: 35px;
    font-size: 1rem;
  }
}

@media (max-width: 600px) {
  .header {
    flex-direction: column;
    gap: 15px;
    padding: 15px;
  }

  .title {
    font-size: 1.5rem;
    text-align: center;
  }

  .controls {
    width: 100%;
    justify-content: center;
  }

  .control-btn {
    flex: 1;
    justify-content: center;
    padding: 10px;
  }

  .center-title {
    font-size: 1.8rem;
  }

  .center-subtitle {
    font-size: 0.9rem;
  }

  .input-title {
    font-size: 1.1rem;
  }

  .input-tabs {
    font-size: 0.8rem;
  }

  .tab {
    padding: 8px 5px;
  }

  .footer {
    flex-direction: column;
    gap: 15px;
    padding: 15px;
  }

  .visualization-mode {
    top: 80px;
    right: auto;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    text-align: center;
    font-size: 0.8rem;
  }

  .visualization-selector {
    bottom: 120px;
    padding: 8px 10px;
    gap: 8px;
  }

  .status-bar {
    flex-direction: column;
    gap: 8px;
    width: 100%;
    text-align: center;
  }

  .status-item {
    justify-content: center;
  }

  .audio-controls {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .title {
    font-size: 1.4rem;
    letter-spacing: 2px;
  }

  .subtitle {
    font-size: 0.7rem;
    letter-spacing: 2px;
  }

  .center-title {
    font-size: 0rem;
    margin-bottom: 10px;
  }

  .center-subtitle {
    font-size: 0.8rem;
    margin-bottom: 20px;
  }

  .video-input-container {
    padding: 12px;
  }

  .input-title {
    font-size: 1rem;
    margin-bottom: 12px;
  }

  .url-input {
    padding: 10px;
    font-size: 0.8rem;
    margin-bottom: 12px;
  }

  .visualize-btn {
    padding: 10px 12px;
    font-size: 0.9rem;
  }

  .input-tabs {
    font-size: 0.7rem;
  }

  .tab {
    padding: 6px 3px;
  }

  .vis-select-btn {
    padding: 5px 8px;
    font-size: 0.6rem;
  }

  .visualization-mode {
    top: 90px;
    width: 90%;
  }

  .visualization-selector {
    bottom: 34px;
  }
}

@media (max-width: 360px) {
  .title {
    font-size: 1.3rem;
  }

  .center-title {
    font-size: 1.3rem;
  }

  .center-subtitle {
    font-size: 0.7rem;
  }

  .visualize-btn {
    font-size: 0.8rem;
  }

  .vis-select-btn {
    padding: 4px 6px;
    font-size: 0.55rem;
  }

  .status-bar {
    font-size: 0.7rem;
  }

  .audio-btn {
    width: 30px;
    height: 30px;
    font-size: 0.9rem;
  }
}

/* Orientation-specific adjustments */
@media (max-height: 600px) and (orientation: landscape) {
  .header {
    padding: 10px 15px;
  }

  .title {
    font-size: 1.4rem;
  }

  .center-title {
    font-size: 1.8rem;
    margin-bottom: 10px;
  }

  .center-subtitle {
    font-size: 0.8rem;
    margin-bottom: 15px;
  }

  .video-input-container {
    padding: 15px;
    max-width: 90%;
  }

  .visualization-selector {
    bottom: 80px;
  }

  .footer {
    padding: 10px 15px;
  }
}

/* Very small height devices */
@media (max-height: 400px) {
  .header {
    padding: 8px 10px;
  }

  .title {
    font-size: 1.2rem;
  }

  .center-display {
    transform: translate(-50%, -50%) scale(0.8);
  }

  .footer {
    padding: 8px 10px;
  }

  .visualization-selector {
    bottom: 60px;
    padding: 5px 8px;
  }

  .vis-select-btn {
    padding: 3px 5px;
    font-size: 0.5rem;
  }
}