@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=Rajdhani:wght@400;600;700&display=swap');

:root {
  --cp-bg: #0a0a12;
  --cp-bg-secondary: #12121e;
  --cp-bg-card: #1a1a2e;
  --cp-yellow: #FCEE09;
  --cp-yellow-dim: #b8a900;
  --cp-yellow-glow: rgba(252, 238, 9, 0.3);
  --cp-cyan: #00f0ff;
  --cp-cyan-glow: rgba(0, 240, 255, 0.3);
  --cp-red: #ff003c;
  --cp-red-glow: rgba(255, 0, 60, 0.3);
  --cp-text: #e0e0e0;
  --cp-text-dim: #666680;
  --cp-border: #2a2a3e;
  --cp-input-bg: #0d0d18;
  --cp-success: #00ff88;
  --font-mono: 'Share Tech Mono', 'SF Mono', 'Fira Code', Consolas, monospace;
  --font-display: 'Rajdhani', 'Segoe UI', system-ui, sans-serif;
}

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

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
}

body {
  background: var(--cp-bg);
  color: var(--cp-text);
  font-family: var(--font-mono);
  -ms-overflow-style: none;
  scrollbar-width: none;
}

body::-webkit-scrollbar {
  display: none;
}

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--cp-bg);
}

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

::-webkit-scrollbar-thumb:hover {
  background: var(--cp-yellow);
}

::selection {
  background: var(--cp-yellow);
  color: var(--cp-bg);
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.1) 2px,
    rgba(0, 0, 0, 0.1) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

/* ── Glitch text effect ── */

.glitch {
  position: relative;
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 700;
  color: var(--cp-yellow);
  text-shadow: 0 0 10px var(--cp-yellow-glow);
  animation: glitch-skew 4s infinite linear alternate-reverse;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.glitch::before {
  color: var(--cp-cyan);
  animation: glitch-1 2s infinite linear alternate-reverse;
  clip-path: polygon(0 0, 100% 0, 100% 35%, 0 35%);
}

.glitch::after {
  color: var(--cp-red);
  animation: glitch-2 3s infinite linear alternate-reverse;
  clip-path: polygon(0 65%, 100% 65%, 100% 100%, 0 100%);
}

@keyframes glitch-1 {
  0%, 94% { transform: translate(0); }
  95% { transform: translate(-2px, 1px); }
  96% { transform: translate(2px, -1px); }
  97% { transform: translate(-1px, 2px); }
  100% { transform: translate(0); }
}

@keyframes glitch-2 {
  0%, 92% { transform: translate(0); }
  93% { transform: translate(2px, 1px); }
  95% { transform: translate(-2px, -1px); }
  97% { transform: translate(1px, -2px); }
  100% { transform: translate(0); }
}

@keyframes glitch-skew {
  0%, 96% { transform: skew(0deg); }
  97% { transform: skew(2deg); }
  98% { transform: skew(-1deg); }
  99% { transform: skew(1deg); }
  100% { transform: skew(0deg); }
}

/* ── Buttons ── */

.cyber-btn {
  background: transparent;
  border: 2px solid var(--cp-yellow);
  color: var(--cp-yellow);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 2px;
  padding: 12px 24px;
  cursor: pointer;
  transition: all 0.2s ease;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}

.cyber-btn:hover {
  background: var(--cp-yellow);
  color: var(--cp-bg);
  text-shadow: 0 0 8px var(--cp-yellow-glow);
}

.cyber-btn.danger {
  border-color: var(--cp-red);
  color: var(--cp-red);
}

.cyber-btn.danger:hover {
  background: var(--cp-red);
  color: var(--cp-bg);
  text-shadow: 0 0 8px var(--cp-red-glow);
}

.cyber-btn-sm {
  background: transparent;
  border: 2px solid var(--cp-yellow);
  color: var(--cp-yellow);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 8px 16px;
  cursor: pointer;
  transition: all 0.2s ease;
  clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 6px 100%, 0 calc(100% - 6px));
}

.cyber-btn-sm:hover {
  background: var(--cp-yellow);
  color: var(--cp-bg);
  text-shadow: 0 0 8px var(--cp-yellow-glow);
}

/* ── Inputs ── */

.cyber-input {
  background: var(--cp-input-bg);
  border: 1px solid var(--cp-border);
  color: var(--cp-text);
  font-family: var(--font-mono);
  font-size: 14px;
  padding: 12px 16px;
  width: 100%;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}

.cyber-input:focus {
  border-color: var(--cp-yellow);
  box-shadow: 0 0 8px var(--cp-yellow-glow);
}

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

/* ── Auth Page ── */

.auth-page {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-page::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--cp-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--cp-border) 1px, transparent 1px);
  background-size: 50px 50px;
  opacity: 0.15;
  animation: grid-move 20s linear infinite;
  z-index: -1;
}

@keyframes grid-move {
  0% { transform: translate(0, 0); }
  100% { transform: translate(50px, 50px); }
}

#auth-container {
  max-width: 420px;
  width: 90%;
  padding: 40px;
  background: rgba(26, 26, 46, 0.9);
  border: 1px solid var(--cp-border);
}

.auth-title {
  text-align: center;
  margin-bottom: 32px;
}

.auth-subtitle {
  color: var(--cp-text-dim);
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-top: 4px;
}

#login-view,
#register-view {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

#auth-error {
  color: var(--cp-red);
  border-left: 3px solid var(--cp-red);
  padding: 10px 14px;
  background: rgba(255, 0, 60, 0.08);
  margin-top: 16px;
  font-size: 13px;
}

#auth-status {
  color: var(--cp-cyan);
  border-left: 3px solid var(--cp-cyan);
  padding: 10px 14px;
  background: rgba(0, 240, 255, 0.08);
  margin-top: 16px;
  font-size: 13px;
  animation: pulse 1.5s ease-in-out infinite;
}

.auth-toggle {
  text-align: center;
  margin-top: 4px;
}

.auth-toggle span {
  color: var(--cp-yellow-dim);
  cursor: pointer;
  font-size: 12px;
  letter-spacing: 1px;
  transition: color 0.2s;
}

.auth-toggle span:hover {
  color: var(--cp-yellow);
}

.auth-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  text-align: center;
  color: var(--cp-text-dim);
  font-size: 11px;
  letter-spacing: 1px;
  padding: 20px;
}

/* ── App Page ── */

.app-page {
  height: 100%;
  overflow: hidden;
}

#app-container {
  display: flex;
  height: 100%;
  width: 100%;
  overflow: hidden;
  position: relative;
}

/* ── Sidebar ── */

#sidebar {
  width: 340px;
  min-width: 340px;
  background: var(--cp-bg-secondary);
  border-right: 1px solid var(--cp-border);
  display: flex;
  flex-direction: column;
}

#sidebar-header {
  padding: 20px;
  padding-top: calc(20px + env(safe-area-inset-top, 0px));
  border-bottom: 1px solid var(--cp-border);
  flex-shrink: 0;
}

.sidebar-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  color: var(--cp-yellow);
}

.sidebar-subtitle {
  color: var(--cp-text-dim);
  font-size: 14px;
  margin-left: 8px;
}

.search-area {
  padding: 12px 16px;
  position: relative;
}

#conversations {
  flex: 1;
  overflow-y: auto;
}

.sidebar-bottom {
  padding: 12px 16px;
  padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--cp-border);
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.sidebar-bottom #btn-settings {
  flex: 1;
}

.sidebar-bottom #btn-new-chat {
  min-width: 42px;
}

/* ── Conversation Items ── */

.conversation-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--cp-border);
  cursor: pointer;
  transition: background 0.15s;
}

.conversation-item:hover {
  background: var(--cp-bg-card);
}

.conversation-item.active {
  background: var(--cp-bg-card);
  border-left: 3px solid var(--cp-yellow);
}

.conv-avatar {
  width: 40px;
  height: 40px;
  background: var(--cp-yellow);
  color: var(--cp-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: var(--font-display);
  font-size: 16px;
  flex-shrink: 0;
  clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 6px 100%, 0 calc(100% - 6px));
}

.conv-info {
  flex: 1;
  overflow: hidden;
}

.conv-handle {
  font-weight: 600;
  color: var(--cp-text);
  font-size: 14px;
}

.conv-preview {
  color: var(--cp-text-dim);
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.conv-time {
  font-size: 11px;
  color: var(--cp-text-dim);
  white-space: nowrap;
  flex-shrink: 0;
}

/* ── User search results ── */

#user-results {
  position: absolute;
  left: 16px;
  right: 16px;
  top: 100%;
  background: var(--cp-bg-card);
  border: 1px solid var(--cp-yellow);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  max-height: 300px;
  overflow-y: auto;
  z-index: 100;
}

.user-result-item {
  padding: 12px 16px;
  cursor: pointer;
  border-bottom: 1px solid var(--cp-border);
  transition: background 0.15s;
}

.user-result-item:hover {
  background: var(--cp-bg-secondary);
}

.user-result-item:last-child {
  border-bottom: none;
}

/* ── Chat View ── */

#chat-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--cp-bg);
}

#chat-header {
  padding: 16px 20px;
  padding-top: calc(16px + env(safe-area-inset-top, 0px));
  background: var(--cp-bg-secondary);
  border-bottom: 1px solid var(--cp-border);
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

#btn-back {
  display: none;
  background: none;
  border: none;
  color: var(--cp-text);
  font-size: 20px;
  cursor: pointer;
  padding: 4px 8px;
}

.chat-header-info {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

#chat-contact {
  font-weight: 600;
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--cp-text);
}

#chat-handle {
  color: var(--cp-text-dim);
  font-size: 13px;
}

#messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* ── Message Bubbles ── */

.message {
  max-width: 75%;
  padding: 12px 16px;
  background: var(--cp-bg-card);
  position: relative;
  font-size: 14px;
  line-height: 1.5;
}

.message.sent {
  align-self: flex-end;
  border-right: 3px solid var(--cp-yellow);
  background: rgba(252, 238, 9, 0.05);
}

.message.received {
  align-self: flex-start;
  border-left: 3px solid var(--cp-cyan);
}

.msg-text {
  word-wrap: break-word;
}

.msg-time {
  font-size: 11px;
  color: var(--cp-text-dim);
  margin-top: 6px;
  text-align: right;
}

.msg-status {
  font-size: 10px;
  color: var(--cp-text-dim);
  display: inline;
  margin-left: 8px;
}

/* ── Message Input Bar ── */

#msg-bar {
  padding: 16px 20px;
  padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  background: var(--cp-bg-secondary);
  border-top: 1px solid var(--cp-border);
  display: flex;
  gap: 12px;
  align-items: flex-end;
  flex-shrink: 0;
}

#msg-input {
  flex: 1;
  resize: none;
  max-height: 120px;
  min-height: 40px;
}

#typing-indicator {
  padding: 4px 20px;
  font-size: 12px;
  color: var(--cp-cyan);
  opacity: 0.8;
  animation: pulse 1.5s ease-in-out infinite;
}

/* ── Empty State ── */

#empty-state {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

#empty-state p {
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--cp-text-dim);
  font-family: var(--font-display);
  font-size: 16px;
}

/* ── Settings Overlay ── */

#settings-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

#settings-panel {
  background: var(--cp-bg-card);
  border: 1px solid var(--cp-border);
  padding: 30px;
  width: 90%;
  max-width: 450px;
  position: relative;
}

.settings-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  color: var(--cp-yellow);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 24px;
}

.settings-section {
  margin-top: 24px;
}

.settings-label {
  display: block;
  color: var(--cp-text-dim);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.settings-section-title {
  font-family: var(--font-display);
  color: var(--cp-yellow);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 14px;
  margin-bottom: 12px;
}

.settings-danger {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--cp-border);
}

#btn-close-settings {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  color: var(--cp-text);
  font-size: 24px;
  cursor: pointer;
  line-height: 1;
}

#btn-close-settings:hover {
  color: var(--cp-yellow);
}

/* ── Invite Items ── */

.invite-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px;
  border-bottom: 1px solid var(--cp-border);
  font-size: 13px;
}

.invite-code {
  font-family: var(--font-mono);
  color: var(--cp-cyan);
  cursor: pointer;
}

.invite-status {
  font-size: 11px;
  color: var(--cp-text-dim);
  text-transform: uppercase;
}

.invite-item.used .invite-code {
  color: var(--cp-text-dim);
  text-decoration: line-through;
}

#invite-list {
  margin-bottom: 12px;
}

#btn-generate-invite {
  width: 100%;
}

/* ── Utility Classes ── */

.hidden {
  display: none !important;
}

/* ── Animations ── */

@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

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

.fade-in {
  animation: fadeIn 0.3s ease forwards;
}

/* ── AI Bot indicators ── */

.ai-badge {
  display: inline-block;
  font-size: 10px;
  font-family: var(--font-mono);
  color: var(--cp-cyan);
  border: 1px solid var(--cp-cyan);
  padding: 2px 8px;
  margin-left: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  vertical-align: middle;
  animation: pulse 2s ease-in-out infinite;
}

.bot-tag {
  display: inline-block;
  font-size: 9px;
  font-family: var(--font-mono);
  color: var(--cp-bg);
  background: var(--cp-cyan);
  padding: 1px 5px;
  margin-left: 6px;
  letter-spacing: 1px;
  font-weight: 700;
  vertical-align: middle;
}

.conversation-item .conv-avatar.bot-avatar {
  background: var(--cp-cyan);
  color: var(--cp-bg);
}

/* ── Mobile Responsive ── */

@media (max-width: 768px) {
  #sidebar {
    width: 100%;
    min-width: 100%;
  }

  #chat-view {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    background: var(--cp-bg);
  }

  #chat-view.active {
    transform: translateX(0);
  }

  #btn-back {
    display: flex !important;
  }

  #empty-state {
    display: none;
  }

  .message {
    max-width: 85%;
  }

  .search-area {
    flex-shrink: 0;
  }
}

/* ── Device Authorization ─────────────────────────────────────────── */

.device-auth-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 20px;
}

.device-auth-card {
  max-width: 420px;
  width: 100%;
  text-align: center;
  padding: 40px 30px;
  background: var(--cp-bg-card);
  border: 1px solid var(--cp-border);
}

.device-auth-icon {
  font-size: 48px;
  margin-bottom: 16px;
  filter: drop-shadow(0 0 12px var(--cp-yellow-glow));
}

.device-auth-title {
  font-family: var(--font-display);
  color: var(--cp-yellow);
  font-size: 1.3rem;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.device-auth-text {
  color: var(--cp-text-dim);
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 20px;
}

.device-code-input {
  text-align: center;
  font-size: 28px !important;
  letter-spacing: 12px;
  font-family: var(--font-display) !important;
  font-weight: 700;
  max-width: 220px;
  margin: 0 auto 20px auto;
  display: block;
  color: var(--cp-yellow) !important;
}

.device-auth-footer {
  margin-top: 24px;
  border-top: 1px solid var(--cp-border);
  padding-top: 20px;
}

/* Notification overlay (shown on existing device) */

.device-auth-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  padding: 20px;
}

.device-auth-notify-card {
  max-width: 380px;
  width: 100%;
  text-align: center;
  padding: 40px 30px;
  background: var(--cp-bg-card);
  border: 1px solid var(--cp-yellow);
  box-shadow: 0 0 30px var(--cp-yellow-glow);
}

.device-auth-code-display {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 700;
  color: var(--cp-yellow);
  letter-spacing: 10px;
  padding: 16px;
  margin: 20px 0;
  border: 2px solid var(--cp-yellow);
  text-shadow: 0 0 10px var(--cp-yellow-glow);
}