/* ============================================
   KVOYCER - Iron Man HUD Style
   ============================================ */

:root {
  --bg-dark: #0a0a0f;
  --bg-panel: rgba(10, 15, 25, 0.9);
  --cyan: #00d4ff;
  --cyan-dim: rgba(0, 212, 255, 0.3);
  --purple: #a855f7;
  --purple-dim: rgba(168, 85, 247, 0.3);
  --gold: #f59e0b;
  --red: #ef4444;
  --green: #22c55e;
  --text: #e2e8f0;
  --text-dim: #64748b;
  --border: rgba(0, 212, 255, 0.2);
  --glow: 0 0 20px rgba(0, 212, 255, 0.5);
  --glow-strong: 0 0 40px rgba(0, 212, 255, 0.8);
}

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

body {
  font-family: 'Rajdhani', sans-serif;
  background: var(--bg-dark);
  color: var(--text);
  min-height: 100vh;
  overflow: hidden;
  position: relative;
}

/* Scanline effect */
.scanline {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: 1000;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.1) 2px,
    rgba(0, 0, 0, 0.1) 4px
  );
}

.scanline::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan-dim), transparent);
  animation: scanMove 4s linear infinite;
}

@keyframes scanMove {
  0% { top: 0; opacity: 1; }
  50% { opacity: 0.5; }
  100% { top: 100%; opacity: 1; }
}

/* HUD Corners */
.hud-corner {
  position: fixed;
  width: 60px;
  height: 60px;
  border: 2px solid var(--cyan);
  pointer-events: none;
  z-index: 100;
}

.hud-corner-tl {
  top: 20px;
  left: 20px;
  border-right: none;
  border-bottom: none;
}

.hud-corner-tr {
  top: 20px;
  right: 20px;
  border-left: none;
  border-bottom: none;
}

.hud-corner-bl {
  bottom: 20px;
  left: 20px;
  border-right: none;
  border-top: none;
}

.hud-corner-br {
  bottom: 20px;
  right: 20px;
  border-left: none;
  border-top: none;
}

/* Screens */
.screen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.hidden {
  display: none !important;
}

/* ============================================
   LOGIN SCREEN
   ============================================ */

#login-screen {
  justify-content: center;
  align-items: center;
  background:
    radial-gradient(ellipse at center, rgba(0, 212, 255, 0.1) 0%, transparent 70%),
    var(--bg-dark);
}

.login-container {
  text-align: center;
  padding: 60px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  position: relative;
  max-width: 450px;
  width: 90%;
}

.login-container::before,
.login-container::after {
  content: '';
  position: absolute;
  width: 100px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}

.login-container::before {
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
}

.login-container::after {
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
}

/* Arc Reactor */
.logo {
  margin-bottom: 30px;
}

.arc-reactor {
  width: 80px;
  height: 80px;
  margin: 0 auto;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.arc-core {
  width: 20px;
  height: 20px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: var(--glow-strong);
  animation: pulse 2s ease-in-out infinite;
}

.arc-ring {
  position: absolute;
  width: 50px;
  height: 50px;
  border: 2px solid var(--cyan);
  border-radius: 50%;
  animation: rotate 10s linear infinite;
}

.arc-ring::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 50%;
  width: 8px;
  height: 8px;
  background: var(--cyan);
  border-radius: 50%;
  transform: translateX(-50%);
}

.arc-ring-2 {
  width: 70px;
  height: 70px;
  animation-direction: reverse;
  animation-duration: 15s;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(0.95); }
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.title {
  font-family: 'Orbitron', sans-serif;
  font-size: 3rem;
  font-weight: 900;
  letter-spacing: 0.3em;
  color: var(--cyan);
  text-shadow: var(--glow);
  margin-bottom: 10px;
}

.subtitle {
  font-size: 0.9rem;
  color: var(--text-dim);
  letter-spacing: 0.3em;
  margin-bottom: 40px;
}

.input-group {
  margin-bottom: 30px;
  text-align: left;
}

.input-group label {
  display: block;
  font-size: 0.8rem;
  color: var(--cyan);
  letter-spacing: 0.2em;
  margin-bottom: 10px;
}

.input-group input {
  width: 100%;
  padding: 15px 20px;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid var(--border);
  border-radius: 2px;
  color: var(--text);
  font-family: 'Rajdhani', sans-serif;
  font-size: 1.1rem;
  outline: none;
  transition: all 0.3s ease;
}

.input-group input:focus {
  border-color: var(--cyan);
  box-shadow: var(--glow);
}

.input-group input::placeholder {
  color: var(--text-dim);
}

/* Primary Button */
.btn-primary {
  position: relative;
  width: 100%;
  padding: 18px 30px;
  background: transparent;
  border: 2px solid var(--cyan);
  color: var(--cyan);
  font-family: 'Orbitron', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  cursor: pointer;
  overflow: hidden;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background: var(--cyan);
  color: var(--bg-dark);
  box-shadow: var(--glow-strong);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-glow {
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: btnGlow 3s infinite;
}

@keyframes btnGlow {
  0% { left: -100%; }
  50%, 100% { left: 100%; }
}

.error-message {
  margin-top: 20px;
  padding: 15px;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--red);
  color: var(--red);
  font-size: 0.9rem;
  display: none;
}

.error-message.show {
  display: block;
}

/* ============================================
   CHANNEL SCREEN
   ============================================ */

#channel-screen {
  background:
    radial-gradient(ellipse at top, rgba(168, 85, 247, 0.05) 0%, transparent 50%),
    radial-gradient(ellipse at bottom, rgba(0, 212, 255, 0.05) 0%, transparent 50%),
    var(--bg-dark);
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 15px;
}

.status-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px var(--green);
  animation: pulse 2s infinite;
}

.channel-name {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  color: var(--text);
}

.user-count {
  font-family: 'Orbitron', sans-serif;
  font-size: 1rem;
  color: var(--cyan);
}

/* Participants Grid */
.main-content {
  flex: 1;
  padding: 40px;
  overflow-y: auto;
}

.participants-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
}

/* Participant Card */
.participant-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 25px;
  text-align: center;
  position: relative;
  transition: all 0.3s ease;
}

.participant-card.speaking {
  border-color: var(--green);
  box-shadow: 0 0 30px rgba(34, 197, 94, 0.3);
}

.participant-card.speaking .avatar {
  border-color: var(--green);
  box-shadow: 0 0 20px var(--green);
}

.participant-card.self {
  border-color: var(--cyan);
}

.participant-card.self .avatar {
  border-color: var(--cyan);
}

.avatar {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--purple-dim), var(--cyan-dim));
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 15px;
  font-family: 'Orbitron', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  transition: all 0.3s ease;
}

.participant-name {
  font-family: 'Rajdhani', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.speaking-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  height: 20px;
}

.speaking-indicator .bar {
  width: 3px;
  height: 5px;
  background: var(--green);
  border-radius: 2px;
  animation: soundBar 0.5s ease-in-out infinite alternate;
}

.speaking-indicator .bar:nth-child(1) { animation-delay: 0s; }
.speaking-indicator .bar:nth-child(2) { animation-delay: 0.1s; }
.speaking-indicator .bar:nth-child(3) { animation-delay: 0.2s; }
.speaking-indicator .bar:nth-child(4) { animation-delay: 0.3s; }
.speaking-indicator .bar:nth-child(5) { animation-delay: 0.4s; }

@keyframes soundBar {
  0% { height: 5px; }
  100% { height: 20px; }
}

.status-text {
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.15em;
}

.muted-badge {
  color: var(--red);
}

/* Controls */
.controls {
  display: flex;
  justify-content: center;
  gap: 20px;
  padding: 30px;
  background: var(--bg-panel);
  border-top: 1px solid var(--border);
}

.control-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 30px;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-family: 'Rajdhani', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all 0.3s ease;
}

.control-btn:hover {
  border-color: var(--cyan);
  box-shadow: var(--glow);
}

.control-btn .icon {
  width: 24px;
  height: 24px;
}

.control-btn.muted {
  border-color: var(--red);
  color: var(--red);
}

.control-btn.muted:hover {
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.5);
}

.control-btn.disconnect {
  border-color: var(--red);
  color: var(--red);
}

.control-btn.disconnect:hover {
  background: var(--red);
  color: white;
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1001;
}

.modal-content {
  background: var(--bg-panel);
  border: 1px solid var(--red);
  padding: 40px;
  text-align: center;
  max-width: 400px;
}

.modal-content h2 {
  font-family: 'Orbitron', sans-serif;
  color: var(--red);
  margin-bottom: 15px;
  font-size: 1.2rem;
  letter-spacing: 0.1em;
}

.modal-content p {
  color: var(--text-dim);
  margin-bottom: 30px;
}

/* Audio elements (hidden) */
audio {
  display: none;
}

/* Responsive */
@media (max-width: 768px) {
  .title {
    font-size: 2rem;
  }

  .login-container {
    padding: 40px 30px;
  }

  .header {
    padding: 15px 20px;
  }

  .main-content {
    padding: 20px;
  }

  .participants-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 15px;
  }

  .controls {
    padding: 20px;
    gap: 10px;
  }

  .control-btn {
    padding: 12px 20px;
    font-size: 0.8rem;
  }

  .hud-corner {
    width: 30px;
    height: 30px;
  }
}