/* ZeroChat - High-End Minimalist Dark-Mode Glassmorphic Aesthetic */

:root {
  --bg-main: #0a0b0e;
  --panel-bg: rgba(18, 24, 38, 0.7);
  --panel-blur: 16px;
  --panel-border: 1px solid rgba(255, 255, 255, 0.08);
  --panel-radius: 12px;
  --panel-shadow: 0 8px 32px rgba(0, 0, 0, 0.37);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-cyan: #38bdf8;
  --accent-indigo: #6366f1;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #ef4444;
  --accent-blue: #3b82f6;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

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

html, body {
  position: fixed;
  inset: 0;
  width: 100%;
  height: var(--app-height, 100dvh);
  background-color: var(--bg-main);
  background-image:
    radial-gradient(circle at 10% 10%, rgba(56, 189, 248, 0.07) 0%, transparent 40%),
    radial-gradient(circle at 90% 90%, rgba(99, 102, 241, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 50% 50%, rgba(16, 185, 129, 0.03) 0%, transparent 50%);
  background-attachment: fixed;
  color: var(--text-primary);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden;
  overscroll-behavior: none;
  -webkit-text-size-adjust: 100%;
}

#app {
  position: fixed;
  top: var(--app-offset-top, 0px);
  left: 0;
  right: 0;
  width: 100%;
  max-width: 100vw;
  height: var(--app-height, 100dvh);
  overflow: hidden;
  box-sizing: border-box;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

@media (min-width: 960px) {
  #app {
    max-width: 960px;
  }
}

/* Glassmorphism Panel Base */
.glass-panel {
  background: var(--panel-bg);
  backdrop-filter: blur(var(--panel-blur));
  -webkit-backdrop-filter: blur(var(--panel-blur));
  border: var(--panel-border);
  border-radius: var(--panel-radius);
  box-shadow: var(--panel-shadow);
}

/* Chat Layout Container */
.chat-layout {
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 0 16px;
  gap: 6px;
  box-sizing: border-box;
  overflow: hidden;
}

/* Horizontal Overflow Guards */
.chat-header,
.global-burn-row,
.burn-room-bar,
#chat-feed,
#messages-container,
#message-list,
.chat-layout {
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

#chat-feed,
#messages-container,
#message-list {
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

/* Header */
.chat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 4px;
  padding-top: calc(8px + env(safe-area-inset-top, 0px));
  padding-bottom: 4px;
  flex-shrink: 0;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  user-select: none;
  -webkit-user-select: none;
  cursor: default;
}

.brand-icon {
  width: 28px;
  height: 32px;
  background: transparent;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  user-select: none;
  -webkit-user-select: none;
  cursor: default;
}

.brand-text {
  display: flex;
  flex-direction: column;
  user-select: none;
  -webkit-user-select: none;
  cursor: default;
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #ffffff 40%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  user-select: none;
  -webkit-user-select: none;
  cursor: default;
}

.brand-tagline {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  user-select: none;
  -webkit-user-select: none;
  cursor: default;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Multi-Peer Mesh Badges & Indicators */
.peer-list {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  max-width: 320px;
}

.peer-count-badge,
#peer-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 26px;
  padding: 0 4px;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  background: transparent;
  border: none;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  user-select: none;
  -webkit-user-select: none;
  cursor: default;
  white-space: nowrap;
  box-sizing: border-box;
}

.peer-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 26px;
  padding: 0 4px;
  border-radius: 9999px;
  background: transparent;
  border: none;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  user-select: none;
  -webkit-user-select: none;
  cursor: default;
  white-space: nowrap;
  box-sizing: border-box;
}

.peer-lock-icon {
  width: 13px;
  height: 13px;
  stroke: var(--accent-cyan);
  display: inline-block;
  flex-shrink: 0;
}

.btn-leave,
#header-leave-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  padding: 0;
  border-radius: 9999px;
  background: rgba(244, 63, 94, 0.12);
  border: 1px solid rgba(244, 63, 94, 0.32);
  color: #fda4af;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
  -webkit-user-select: none;
  box-sizing: border-box;
  flex-shrink: 0;
}

.btn-leave svg,
#header-leave-btn svg {
  display: block;
}

.btn-leave:hover,
#header-leave-btn:hover {
  background: rgba(244, 63, 94, 0.24);
  border-color: rgba(244, 63, 94, 0.6);
  color: #ffffff;
  box-shadow: 0 0 10px rgba(244, 63, 94, 0.35);
  transform: translateY(-1px);
}

.btn-leave:active,
#header-leave-btn:active {
  transform: translateY(0);
}

.peer-indicator-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 6px var(--accent-emerald);
}

.peer-label {
  font-weight: 500;
}

/* Status Pill with Pulsing Dot Indicator */
#status-badge,
.status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  padding: 0;
  border-radius: 9999px;
  transition: all 0.3s ease;
  user-select: none;
  flex-shrink: 0;
}

.status-indicator-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.35;
    transform: scale(0.8);
  }
}

/* Status Classes */
.status-disconnected {
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: var(--accent-cyan);
}
.status-disconnected .status-indicator-dot {
  background-color: #64748b;
  box-shadow: 0 0 6px rgba(100, 116, 139, 0.6);
  animation: none;
}

.status-signaling {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: #fbbf24;
}
.status-signaling .status-indicator-dot {
  background-color: #f59e0b;
  box-shadow: 0 0 8px #f59e0b;
}

.status-connected {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.35);
  color: #34d399;
}
.status-connected .status-indicator-dot {
  background-color: #10b981;
  box-shadow: 0 0 8px #10b981;
}

.status-edge-severed {
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.35);
  color: #60a5fa;
}
.status-edge-severed .status-indicator-dot {
  background-color: #3b82f6;
  box-shadow: 0 0 8px #3b82f6;
}

.status-capsule-disconnected {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: auto;
  min-width: 16px;
  height: 26px;
  padding: 0 4px;
  border-radius: 9999px;
  background: transparent;
  border: none;
  flex-shrink: 0;
  box-sizing: border-box;
  user-select: none;
  -webkit-user-select: none;
  cursor: default;
}
.status-capsule-disconnected .blue-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--accent-cyan);
  box-shadow: 0 0 6px rgba(56, 189, 248, 0.6);
  display: inline-block;
  animation: none;
}
.status-capsule-disconnected .red-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #f43f5e;
  box-shadow: 0 0 6px rgba(244, 63, 94, 0.8);
  display: inline-block;
}

.ticking-dots {
  margin-left: 0;
}
.ticking-dots::after {
  content: "";
  display: inline-block;
  animation: tickDots 1.5s infinite steps(1);
}
@keyframes tickDots {
  0%   { content: ""; }
  25%  { content: "."; }
  50%  { content: ".."; }
  75%  { content: "..."; }
  100% { content: ""; }
}


/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  outline: none;
}

.btn-burn {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}
.btn-burn:hover {
  background: rgba(239, 68, 68, 0.25);
  border-color: rgba(239, 68, 68, 0.5);
  box-shadow: 0 0 12px rgba(239, 68, 68, 0.25);
}

.btn-copy {
  background: rgba(56, 189, 248, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.3);
  color: var(--accent-cyan);
  white-space: nowrap;
}
.btn-copy:hover {
  background: rgba(56, 189, 248, 0.25);
}

.btn-icon {
  padding: 8px 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.btn-icon svg {
  display: block;
}

.btn-send {
  background: linear-gradient(135deg, #0ea5e9 0%, #3b82f6 100%);
  color: #ffffff;
  padding: 10px 22px;
  box-shadow: 0 2px 10px rgba(14, 165, 233, 0.3);
}
.btn-send:hover {
  opacity: 0.92;
  box-shadow: 0 4px 14px rgba(14, 165, 233, 0.45);
  transform: translateY(-1px);
}
.btn-send:active {
  transform: translateY(0);
}

.btn-send:disabled,
.btn-send:disabled:hover {
  background: rgba(51, 65, 85, 0.28);
  color: #475569;
  box-shadow: none;
  cursor: not-allowed;
  transform: none;
  opacity: 0.55;
}

.btn-send-emerald {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.35);
  color: var(--accent-emerald);
  padding: 0;
  width: 42px;
  height: 42px;
  border-radius: 9999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s ease;
}

.btn-send-emerald:hover:not(:disabled) {
  background: rgba(16, 185, 129, 0.28);
  border-color: rgba(16, 185, 129, 0.65);
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.35);
  color: #ffffff;
  transform: translateY(-1px);
}

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

.btn-send-emerald:disabled,
.btn-send-emerald:disabled:hover {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: #475569;
  box-shadow: none;
  cursor: not-allowed;
  transform: none;
  opacity: 0.5;
}

.btn-send-emerald.btn-icon,
#send-button {
  width: 42px;
  height: 42px;
  border-radius: 9999px;
  padding: 0;
  flex-shrink: 0;
}

.btn-action-peer,
#input-add-peer-btn {
  width: 42px;
  height: 42px;
  border-radius: 9999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.3);
  color: var(--accent-cyan);
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.2s ease;
}

.btn-action-peer:hover:not(:disabled),
#input-add-peer-btn:hover:not(:disabled) {
  background: rgba(56, 189, 248, 0.22);
  border-color: rgba(56, 189, 248, 0.5);
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.35);
  transform: translateY(-1px);
}

.btn-action-peer:active:not(:disabled),
#input-add-peer-btn:active:not(:disabled) {
  transform: translateY(0);
}

.btn-action-peer.btn-waiting {
  background: rgba(56, 189, 248, 0.28);
  border-color: rgba(56, 189, 248, 0.65);
  color: #38bdf8;
}

#input-add-peer-btn.btn-waiting {
  background: rgba(56, 189, 248, 0.28);
  border-color: rgba(56, 189, 248, 0.65);
  color: #38bdf8;
}

.btn-action-peer:disabled,
#input-add-peer-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Full Width Action and Burn Controls */
.burn-room-bar {
  width: 100%;
  margin-bottom: 8px;
  animation: slideDown 0.25s ease-out;
}

.btn-burn-full {
  width: 100%;
  padding: 10px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-burn-full svg {
  display: block;
}

#destroy-session-button,
#destroy-session-button.btn-header-burn {
  width: auto;
  min-width: 80px;
  height: 26px;
  padding: 0 14px;
  border-radius: 9999px;
  background: rgba(244, 63, 94, 0.12);
  border: 1px solid rgba(244, 63, 94, 0.32);
  color: #fda4af;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  box-sizing: border-box;
  flex-shrink: 0;
  transition: all 0.2s ease;
}

#destroy-session-button:hover,
#destroy-session-button.btn-header-burn:hover {
  background: rgba(244, 63, 94, 0.24);
  border-color: rgba(244, 63, 94, 0.6);
  color: #ffffff;
  box-shadow: 0 0 10px rgba(244, 63, 94, 0.35);
  transform: translateY(-1px);
}

#destroy-session-button:active,
#destroy-session-button.btn-header-burn:active {
  transform: translateY(0);
}

#destroy-session-button svg,
#destroy-session-button.btn-header-burn svg {
  display: block;
  flex-shrink: 0;
}

.create-room-bar {
  width: 100%;
  display: flex;
  padding-bottom: calc(6px + env(safe-area-inset-bottom, 0px));
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

.btn-action-full,
#btn-create-room {
  width: 100%;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  font-size: 0.9rem;
  font-weight: 600;
  gap: 8px;
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
  -webkit-user-select: none;
}

.btn-action-full svg,
#btn-create-room svg {
  display: block;
  flex-shrink: 0;
}

.btn-emerald {
  background: rgba(16, 185, 129, 0.14) !important;
  border: 1px solid rgba(16, 185, 129, 0.35) !important;
  color: #34d399 !important;
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.15);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn-emerald:hover:not(:disabled) {
  background: rgba(16, 185, 129, 0.25) !important;
  border-color: rgba(16, 185, 129, 0.6) !important;
  color: #ffffff !important;
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.35);
  transform: translateY(-1px);
}

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

#btn-create-room.btn-copied {
  background: linear-gradient(135deg, #059669 0%, #047857 100%) !important;
  border-color: rgba(52, 211, 153, 0.6) !important;
  color: #ecfdf5 !important;
  box-shadow: 0 0 16px rgba(16, 185, 129, 0.45), 0 4px 14px rgba(0, 0, 0, 0.3) !important;
  transform: translateY(-1px);
}

#btn-create-room.btn-waiting {
  background: rgba(16, 185, 129, 0.22) !important;
  border: 1px solid rgba(52, 211, 153, 0.45) !important;
  color: #6ee7b7 !important;
  box-shadow: 0 0 14px rgba(16, 185, 129, 0.2) !important;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  font-size: 0.85rem;
}

#btn-create-room.btn-waiting:hover:not(:disabled) {
  background: rgba(16, 185, 129, 0.32) !important;
  border-color: rgba(52, 211, 153, 0.7) !important;
  color: #ffffff !important;
  box-shadow: 0 0 22px rgba(16, 185, 129, 0.4) !important;
  transform: translateY(-1px);
}

/* Invite Section Panel */
.invite-panel {
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-shrink: 0;
  animation: slideDown 0.25s ease-out;
}

.invite-panel:not(:has(:not(.hidden))) {
  display: none !important;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.invite-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.invite-title {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-cyan);
}

.invite-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.invite-input-row {
  display: flex;
  gap: 8px;
}

.invite-input {
  flex: 1;
  background: rgba(10, 11, 14, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 0.8rem;
  color: var(--text-primary);
  font-family: var(--font-mono);
  outline: none;
}

/* Chat Stream Container */
.messages-container {
  flex: 1;
  overflow-y: auto;
  scroll-behavior: smooth;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 4px 6px;
}

.messages-container::-webkit-scrollbar {
  width: 6px;
}

.messages-container::-webkit-scrollbar-track {
  background: transparent;
}

.messages-container::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
}

.messages-container::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* System Messages */
.system-message {
  align-self: flex-start;
  text-align: left;
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-style: normal;
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 4px 0;
  user-select: none;
  animation: fadeIn 0.2s ease-out;
}

.system-temporary,
.transient-status,
.system-message:has(.ticking-dots) {
  gap: 0;
}

.system-temporary {
  /* Temporary system messages inherit from .system-message without timestamp */
}

.notice-pulse {
  animation: noticePulse 0.4s ease-out;
}

@keyframes noticePulse {
  0% {
    transform: scale(0.98);
    opacity: 0.7;
  }
  50% {
    transform: scale(1.02);
    opacity: 1;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.system-timestamp {
  display: none !important;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  cursor: default;
  user-select: none;
  flex-shrink: 0;
}

/* Message Bubbles */
.message-bubble {
  position: relative;
  min-width: 135px;
  min-height: 44px;
  max-width: 82%;
  flex-shrink: 0;
  flex: 0 0 auto;
  height: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 12px;
  word-break: break-word;
  overflow-wrap: anywhere;
  animation: fadeIn 0.2s ease-out;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.btn-message-burn {
  position: relative;
  top: -2px;
  margin-left: auto;
  width: 22px;
  height: 22px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  border: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.45);
  cursor: pointer;
  transition: all 0.2s ease;
  box-sizing: border-box;
  flex-shrink: 0;
}

.btn-message-burn:hover {
  color: #fca5a5;
  background: transparent;
  box-shadow: none;
  transform: scale(1.1);
}

.btn-message-burn:active {
  color: #f87171;
  background: transparent;
  box-shadow: none;
  transform: scale(0.95);
}

.message-aging {
  opacity: 0.8 !important;
  transition: opacity 20s linear !important;
}

.message-dissolve {
  opacity: 0 !important;
  transform: scale(0.98) !important;
  max-height: 0 !important;
  margin-top: 0 !important;
  margin-bottom: 0 !important;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
  overflow: hidden !important;
  transition: opacity 0.2s ease-out, transform 0.2s ease-out, max-height 0.2s ease-out, margin 0.2s ease-out, padding 0.2s ease-out !important;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Outgoing Messages ("You") */
.message-outgoing {
  align-self: flex-end;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-left: 3px solid var(--accent-emerald);
  border-bottom-right-radius: 4px;
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.08);
}

.message-outgoing .message-header {
  justify-content: space-between;
  gap: 6px;
}

.message-outgoing .message-sender {
  color: #34d399;
}

/* Incoming Messages ("Peer") */
.message-incoming {
  align-self: flex-start;
  background: rgba(14, 165, 233, 0.10);
  border: 1px solid rgba(14, 165, 233, 0.22);
  border-left: 3px solid var(--peer-color, var(--accent-cyan));
  border-bottom-left-radius: 4px;
  box-shadow: 0 4px 16px rgba(14, 165, 233, 0.06);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.message-incoming .message-header {
  justify-content: space-between;
  gap: 6px;
}

.message-incoming .message-sender {
  color: #38bdf8;
}

.message-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 22px;
  gap: 6px;
  font-size: 0.72rem;
  margin-bottom: 2px;
}

.peer-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--peer-color, var(--accent-cyan));
  box-shadow: 0 0 6px var(--peer-color, var(--accent-cyan));
  display: inline-block;
  flex-shrink: 0;
}

.self-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 6px var(--accent-emerald);
  display: inline-block;
  flex-shrink: 0;
}

.peer-color-0 { --peer-color: #38bdf8; } /* cyan */
.peer-color-1 { --peer-color: #fbbf24; } /* amber */
.peer-color-2 { --peer-color: #a855f7; } /* purple */
.peer-color-3 { --peer-color: #34d399; } /* emerald */
.peer-color-4 { --peer-color: #f43f5e; } /* rose */
.peer-color-5 { --peer-color: #818cf8; } /* indigo */

.message-sender {
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.message-timestamp {
  display: none !important;
  color: var(--text-muted);
  font-size: 0.68rem;
  font-family: var(--font-mono);
  cursor: default;
  user-select: none;
}

.message-text {
  font-size: 0.92rem;
  line-height: 1.45;
  color: #f1f5f9;
  white-space: pre-wrap;
}

/* Cryptographic Security Badge */
.security-badge {
  font-size: 0.68rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 9999px;
  width: fit-content;
  margin-top: 2px;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.security-badge.verified {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #34d399;
}

.security-badge.unverified {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: #fca5a5;
}

/* Security Alert Cards */
.security-alert-card {
  align-self: center;
  width: 100%;
  max-width: 650px;
  padding: 12px 18px;
  border-radius: 10px;
  background: rgba(220, 38, 38, 0.16);
  border: 1px solid rgba(239, 68, 68, 0.45);
  color: #fca5a5;
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 4px 20px rgba(220, 38, 38, 0.25);
  animation: alertGlow 2.5s infinite ease-in-out;
  margin: 6px 0;
  cursor: default;
  user-select: none;
  -webkit-user-select: none;
}

@keyframes alertGlow {
  0%, 100% {
    box-shadow: 0 4px 16px rgba(220, 38, 38, 0.2);
    border-color: rgba(239, 68, 68, 0.4);
  }
  50% {
    box-shadow: 0 4px 24px rgba(220, 38, 38, 0.4);
    border-color: rgba(239, 68, 68, 0.7);
  }
}

.alert-icon {
  font-weight: 700;
  font-size: 0.85rem;
  white-space: nowrap;
  cursor: default;
  user-select: none;
  -webkit-user-select: none;
}

.alert-message {
  line-height: 1.4;
  word-break: break-word;
}

.burn-banner-centered {
  display: flex !important;
  justify-content: center !important;
  align-items: center !important;
  text-align: center !important;
  width: 100%;
  max-width: 650px;
  margin: 16px auto !important;
  padding: 14px 20px !important;
  border-radius: 10px;
  background: rgba(220, 38, 38, 0.14) !important;
  border: 1px solid rgba(239, 68, 68, 0.5) !important;
  box-shadow: 0 4px 24px rgba(220, 38, 38, 0.3) !important;
  animation: alertGlow 2.5s infinite ease-in-out;
}

.burn-banner-centered .alert-icon {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent-rose);
  text-transform: uppercase;
}

/* Input Bar / Footer */
.chat-footer {
  padding: 4px 0;
  flex-shrink: 0;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

.message-form,
.input-dock {
  width: 100%;
  max-width: 100%;
  overflow: visible;
  display: flex;
  gap: 10px;
  align-items: center;
  padding-top: 4px;
  padding-bottom: calc(6px + env(safe-area-inset-bottom, 0px));
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

html.keyboard-open .message-form,
html.keyboard-open .input-dock,
html.keyboard-open .chat-layout {
  padding-bottom: 8px;
}

#message-input,
.message-input {
  min-width: 0;
  flex: 1 1 auto;
  background: rgba(18, 24, 38, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 9999px;
  padding: 10px 18px;
  color: var(--text-primary);
  font-size: 16px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

#message-input:focus,
.message-input:focus {
  border-color: rgba(56, 189, 248, 0.5);
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.2);
}

#message-input:disabled,
.message-input:disabled {
  background: rgba(15, 20, 30, 0.4);
  border-color: rgba(255, 255, 255, 0.05);
  color: #475569;
  cursor: not-allowed;
}

#message-input:disabled::placeholder,
.message-input:disabled::placeholder {
  color: #334155;
}

#message-input::placeholder,
.message-input::placeholder {
  color: var(--text-muted);
}

/* Safe-Area Inset Top & Bottom for Splash/Landing */
#landing-view,
.welcome-splash {
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

/* Welcome Splash Styling */
.welcome-splash {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 620px;
  margin: auto;
  padding: 24px;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  user-select: none;
}

.welcome-header {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  margin-bottom: 6px;
}

.welcome-title {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #ffffff 40%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.welcome-subtitle {
  font-size: 0.82rem;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1.4;
}

.welcome-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feature-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 12px 14px;
  background: rgba(10, 11, 14, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  transition: border-color 0.2s ease;
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  font-size: 1.25rem;
  line-height: 1;
  padding-top: 2px;
  flex-shrink: 0;
}
.feature-icon svg {
  display: block;
  stroke: var(--accent-blue);
}

.feature-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.feature-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
}

.feature-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.welcome-prompt {
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-secondary);
  padding: 10px;
  background: rgba(16, 185, 129, 0.06);
  border: 1px solid rgba(16, 185, 129, 0.18);
  border-radius: 8px;
}

.welcome-prompt strong {
  color: var(--accent-emerald);
}

/* Utilities */
.hidden {
  display: none !important;
}

/* Responsive adjustments */
@media (max-width: 640px) {
  .chat-layout {
    padding: 8px;
    gap: 8px;
  }

  .message-bubble {
    max-width: 82%;
  }

  .chat-header {
    padding: 10px 14px;
    padding-top: calc(12px + env(safe-area-inset-top, 0px));
  }

  .brand-title {
    font-size: 1rem;
  }
}