/* ==========================================================================
   CypherNet Base Style Rules - Cyber Security Dark Theme
   ========================================================================== */

:root {
  --bg-color: #080c14;
  --panel-bg: #0f172a;
  --card-bg: #1e293b;
  --primary-color: #00f0ff; /* 霓虹蓝 */
  --primary-glow: rgba(0, 240, 255, 0.35);
  --success-color: #10b981; /* 极地绿 */
  --danger-color: #f43f5e;  /* 警告红 */
  --danger-glow: rgba(244, 63, 94, 0.25);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --border-color: #334155;
  --font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

html, body {
  height: 100vh;
  height: 100dvh;
  width: 100vw;
}

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-family);
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

/* 科技感背景网格叠加层 */
.grid-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(15, 23, 42, 0.8) 0%, rgba(8, 12, 20, 0.95) 100%),
    linear-gradient(to right, rgba(0, 240, 255, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 240, 255, 0.04) 1px, transparent 1px);
  background-size: 100% 100%, 40px 40px, 40px 40px;
  z-index: 0;
  pointer-events: none;
}

/* 通用面板容器 */
.panel-container {
  position: relative;
  z-index: 10;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeIn 0.4s ease-out;
}

.panel-container.hidden {
  display: none !important;
}

/* ==========================================================================
   Lobby/Login Panel Styles
   ========================================================================== */

.secure-card {
  background-color: var(--panel-bg);
  border: 1px solid var(--border-color);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5), 0 0 30px rgba(0, 240, 255, 0.05);
  border-radius: 12px;
  width: 100%;
  max-width: 480px;
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.security-badge {
  text-align: center;
}

.shield-icon {
  font-size: 48px;
  margin-bottom: 16px;
  filter: drop-shadow(0 0 10px var(--primary-color));
  animation: pulse 2s infinite alternate;
}

.security-badge h2 {
  font-size: 20px;
  letter-spacing: 2px;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.subtitle {
  font-size: 13px;
  color: var(--primary-color);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-secondary);
}

.form-group input {
  background-color: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 12px 16px;
  color: var(--text-primary);
  font-size: 14px;
  transition: all 0.25s ease;
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 10px var(--primary-glow);
}

.glow-button {
  background: linear-gradient(135deg, #00f0ff 0%, #3b82f6 100%);
  color: #030712;
  border: none;
  border-radius: 6px;
  padding: 14px 20px;
  font-weight: bold;
  font-size: 15px;
  cursor: pointer;
  width: 100%;
  transition: all 0.25s ease;
  box-shadow: 0 0 15px var(--primary-glow);
  letter-spacing: 1px;
}

.glow-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px var(--primary-color);
}

.glow-button:active {
  transform: translateY(0);
}

.privacy-notice {
  background-color: rgba(15, 23, 42, 0.6);
  border-left: 3px solid var(--primary-color);
  border-radius: 4px;
  padding: 16px;
  font-size: 12px;
  line-height: 1.6;
}

.privacy-notice p {
  margin-bottom: 8px;
  color: var(--text-primary);
}

.privacy-notice ul {
  padding-left: 16px;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* ==========================================================================
   Room Panel Styles (Full Layout)
   ========================================================================== */

#room-panel {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

/* 顶部状态栏 */
.room-header {
  height: 70px;
  width: 100%;
  background-color: var(--panel-bg);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 15;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pulse-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--success-color);
  box-shadow: 0 0 10px var(--success-color);
  animation: beacon 1.5s infinite;
}

.logo-text {
  font-weight: 800;
  letter-spacing: 1.5px;
  font-size: 15px;
  color: var(--text-primary);
}

.security-status {
  display: flex;
  align-items: center;
}

.status-badge {
  font-size: 12px;
  padding: 6px 14px;
  border-radius: 20px;
  font-weight: 500;
  letter-spacing: 0.5px;
}

.secure-badge-active {
  background-color: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--success-color);
  color: var(--success-color);
}

.room-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-secondary {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 6px;
  padding: 8px 16px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.btn-danger {
  background-color: var(--danger-color);
  border: none;
  color: #fff;
  border-radius: 6px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 0 10px var(--danger-glow);
}

.btn-danger:hover {
  background-color: #e11d48;
  box-shadow: 0 0 15px var(--danger-color);
}

/* 主体内容区域 */
.room-main {
  flex: 1;
  width: 100%;
  display: grid;
  grid-template-columns: 320px 1fr;
  overflow: hidden;
}

/* 左侧：参会者 */
.peers-section {
  background-color: rgba(15, 23, 42, 0.5);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.section-title {
  padding: 16px 20px;
  font-size: 11px;
  font-weight: bold;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  background-color: rgba(15, 23, 42, 0.8);
}

.peers-list {
  flex: 1;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
}

.peer-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
  transition: border-color 0.25s ease;
}

.peer-card.active-connection {
  border-color: var(--primary-color);
}

.peer-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background-color: var(--panel-bg);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.peer-card.active-connection .peer-avatar {
  border-color: var(--primary-color);
  box-shadow: 0 0 8px var(--primary-glow);
}

.peer-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.peer-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 150px;
}

.peer-status-label {
  font-size: 11px;
  color: var(--text-secondary);
}

.peer-audio-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 动感音量条动画 */
.audio-waves {
  display: flex;
  align-items: flex-end;
  gap: 2.5px;
  width: 20px;
  height: 15px;
}

.audio-waves span {
  display: block;
  width: 2.5px;
  height: 4px;
  background-color: var(--primary-color);
  border-radius: 2px;
  transition: height 0.1s ease;
}

/* 讲话时的动感状态类 */
.audio-waves.speaking span:nth-child(1) { animation: wavePulse 0.5s infinite 0.1s; }
.audio-waves.speaking span:nth-child(2) { animation: wavePulse 0.5s infinite 0.3s; }
.audio-waves.speaking span:nth-child(3) { animation: wavePulse 0.5s infinite 0.2s; }
.audio-waves.speaking span:nth-child(4) { animation: wavePulse 0.5s infinite 0.4s; }

/* 静音图标 */
.muted-icon {
  font-size: 14px;
  color: var(--danger-color);
  display: none;
}

.peer-card.is-muted .muted-icon {
  display: block;
}

.peer-card.is-muted .audio-waves {
  display: none !important;
}

/* 右侧：聊天区域 */
.chat-section {
  display: flex;
  flex-direction: column;
  background-color: var(--bg-color);
  overflow: hidden;
}

.chat-messages {
  flex: 1;
  padding: 24px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.message-wrapper {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-width: 75%;
}

.message-wrapper.me {
  align-self: flex-end;
  align-items: flex-end;
}

.message-wrapper.other {
  align-self: flex-start;
  align-items: flex-start;
}

.message-meta {
  font-size: 11px;
  color: var(--text-secondary);
}

.message-bubble {
  padding: 12px 18px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.5;
  word-break: break-all;
}

.message-wrapper.me .message-bubble {
  background-color: var(--primary-color);
  color: #030712;
  border-bottom-right-radius: 2px;
  box-shadow: 0 4px 15px rgba(0, 240, 255, 0.15);
}

.message-wrapper.other .message-bubble {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-bottom-left-radius: 2px;
}

.system-message {
  align-self: center;
  background-color: rgba(30, 41, 59, 0.5);
  border: 1px dashed var(--border-color);
  border-radius: 6px;
  padding: 8px 16px;
  font-size: 12px;
  color: var(--text-secondary);
  text-align: center;
  max-width: 90%;
}

/* 聊天输入区 */
.chat-input-area {
  padding: 20px 24px;
  background-color: var(--panel-bg);
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 12px;
}

.chat-input-area input {
  flex: 1;
  background-color: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 14px 18px;
  color: var(--text-primary);
  font-size: 14px;
  transition: all 0.2s ease;
}

.chat-input-area input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.btn-primary {
  background: linear-gradient(135deg, #00f0ff 0%, #3b82f6 100%);
  color: #030712;
  border: none;
  border-radius: 6px;
  padding: 0 24px;
  font-weight: bold;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary:hover {
  box-shadow: 0 0 15px var(--primary-glow);
}

/* 底部状态栏 */
.room-footer {
  height: 60px;
  width: 100%;
  background-color: var(--panel-bg);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 15;
}

.control-btn {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 8px 16px;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.25s ease;
}

.control-btn.active {
  border-color: var(--success-color);
  background-color: rgba(16, 185, 129, 0.05);
}

.control-btn.muted {
  border-color: var(--danger-color);
  background-color: rgba(244, 63, 94, 0.05);
  color: var(--danger-color);
}

.system-stats {
  font-size: 12px;
  color: var(--text-secondary);
  display: flex;
  gap: 12px;
}

.separator {
  color: var(--border-color);
}

/* ==========================================================================
   Alerts & Notifications
   ========================================================================== */

.toast {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 999;
  padding: 14px 24px;
  border-radius: 6px;
  background-color: var(--panel-bg);
  border-left: 4px solid var(--primary-color);
  color: var(--text-primary);
  font-size: 14px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}

.toast.hidden {
  display: none;
}

.toast.toast-danger {
  border-left-color: var(--danger-color);
}

/* ==========================================================================
   Animations
   ========================================================================== */

@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.98); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes pulse {
  from { filter: drop-shadow(0 0 5px rgba(0, 240, 255, 0.2)); }
  to { filter: drop-shadow(0 0 15px rgba(0, 240, 255, 0.6)); }
}

@keyframes beacon {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5); }
  70% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

@keyframes wavePulse {
  0% { height: 4px; }
  50% { height: 14px; }
  100% { height: 4px; }
}

@keyframes slideIn {
  from { transform: translateX(100px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* 自定义滚动条 */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* ==========================================================================
   Mobile Responsiveness (Responsive Media Queries)
   ========================================================================== */

@media (max-width: 768px) {
  /* Body and background */
  body {
    overflow: hidden; /* Keep the body from scrolling itself, let panels handle inner scrolling */
  }

  /* Lobby / Login Panel */
  .panel-container {
    align-items: center;
    overflow-y: auto;
    padding: 16px;
  }

  .secure-card {
    padding: 24px 20px;
    gap: 16px;
    margin: auto; /* Vertically center in case viewport is tall enough */
    width: 100%;
    max-width: 100%;
  }

  .shield-icon {
    font-size: 38px;
    margin-bottom: 12px;
  }

  .security-badge h2 {
    font-size: 18px;
  }

  .subtitle {
    font-size: 11px;
  }

  .form-group input {
    padding: 10px 14px;
    font-size: 13px;
  }

  .glow-button {
    padding: 12px 16px;
    font-size: 14px;
  }

  .privacy-notice {
    padding: 12px;
    font-size: 11px;
  }

  /* Room Header */
  .room-header {
    height: 56px;
    padding: 0 12px;
  }

  .logo-text {
    font-size: 12px;
  }

  .pulse-indicator {
    width: 8px;
    height: 8px;
  }

  /* Hide security badge text or hide entirely to prevent horizontal overlap */
  .security-status {
    display: none;
  }

  .room-info {
    gap: 8px;
  }

  .room-info .btn-secondary {
    padding: 6px 10px;
  }

  .room-info .btn-secondary .btn-text {
    display: none; /* Only show the copy emoji on mobile screens */
  }

  .room-info .btn-danger {
    padding: 6px 12px;
    font-size: 12px;
  }

  /* Main Area - Stack top & bottom */
  .room-main {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
    overflow: hidden;
  }

  /* Peers List as horizontal bar */
  .peers-section {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .peers-section .section-title {
    display: none; /* Hide section title to maximize screen height */
  }

  .peers-list {
    flex-direction: row;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 8px 12px;
    gap: 8px;
    white-space: nowrap;
    background-color: rgba(15, 23, 42, 0.4);
    height: 54px; /* Fix height for the peer bar */
  }

  .peer-card {
    padding: 6px 12px;
    gap: 6px;
    border-radius: 20px;
    height: 38px;
    flex-shrink: 0;
    align-items: center;
  }

  .peer-avatar {
    width: 22px;
    height: 22px;
    font-size: 12px;
    border-width: 1px;
  }

  .peer-info {
    flex-direction: row;
    align-items: center;
    gap: 0;
  }

  .peer-name {
    font-size: 12px;
    max-width: 70px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .peer-status-label {
    display: none; /* Hide subtitle labels on mobile peers */
  }

  .peer-audio-controls {
    gap: 2px;
  }

  .audio-waves {
    width: 14px;
    height: 10px;
    gap: 1.5px;
  }

  .audio-waves span {
    width: 1.5px;
    height: 3px;
  }

  .muted-icon {
    font-size: 11px;
  }

  /* Chat Messages Section */
  .chat-messages {
    padding: 12px;
    gap: 12px;
  }

  .message-wrapper {
    max-width: 85%;
  }

  .message-bubble {
    padding: 8px 12px;
    font-size: 13px;
    border-radius: 10px;
  }

  .system-message {
    padding: 6px 12px;
    font-size: 11px;
    max-width: 95%;
  }

  /* Chat Input Area */
  .chat-input-area {
    padding: 10px 12px;
    gap: 8px;
  }

  .chat-input-area input {
    padding: 10px 12px;
    font-size: 13px;
  }

  .btn-primary {
    padding: 0 16px;
    font-size: 13px;
  }

  /* Room Footer */
  .room-footer {
    height: 48px;
    padding: 0 12px;
  }

  .control-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    padding: 0;
    justify-content: center;
    align-items: center;
  }

  .control-btn .btn-icon {
    font-size: 14px;
    margin: 0;
  }

  .control-btn .btn-label {
    display: none; /* Hide text label, keep button circular icon-only */
  }

  .system-stats {
    font-size: 10px;
    gap: 8px;
  }

  /* On screens smaller than 480px, hide non-essential status items to save space */
  @media (max-width: 480px) {
    .system-stats span:nth-child(1),
    .system-stats .separator {
      display: none;
    }
  }

  /* Toasts */
  .toast {
    top: 12px;
    right: 12px;
    left: 12px;
    padding: 10px 16px;
    font-size: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
    justify-content: center;
  }
}