/* Echo IA — design system premium v92
   Tokens + overrides. Pas de blur lourd, pas de néon. */

:root {
  color-scheme: dark;
  --bg-primary: #0c0d11;
  --bg-secondary: #12141a;
  --bg-tertiary: #181b22;
  --bg-elevated: #1b1e27;
  --bg-chat: #0c0d11;
  --bg-card: #151821;
  --bg-hover: rgba(255, 255, 255, 0.045);
  --bg-input: #151821;
  --bg-glass: #12141a;
  --text-primary: #eef0f4;
  --text-secondary: #9aa3b2;
  --text-muted: #6d7684;
  --accent: #8b909a;
  --accent-light: #c5c8ce;
  --accent-dark: #6d727a;
  --accent-glow: rgba(255, 255, 255, 0.06);
  --cyan: #7a9aa4;
  --cyan-glow: transparent;
  --pink: #8b90a5;
  --pink-glow: transparent;
  --success: #3dd68c;
  --danger: #f07178;
  --warning: #e6c07b;
  --border: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.12);
  --border-glow: rgba(110, 124, 255, 0.28);
  --glass-border: rgba(255, 255, 255, 0.08);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
  --shadow-glow: none;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-full: 999px;
  --btn-solid-bg: #f2f3f6;
  --btn-solid-fg: #12141a;
  --icon-btn-color: #f3f4f7;
  --transition: 180ms cubic-bezier(0.2, 0.8, 0.2, 1);
  --transition-fast: 140ms ease;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

html.light {
  color-scheme: light;
  --bg-primary: #f5f6f8;
  --bg-secondary: #ffffff;
  --bg-tertiary: #eef0f3;
  --bg-elevated: #ffffff;
  --bg-chat: #f7f8fa;
  --bg-card: #ffffff;
  --bg-hover: rgba(16, 18, 24, 0.045);
  --bg-input: #ffffff;
  --bg-glass: #ffffff;
  --text-primary: #16181d;
  --text-secondary: #5b6472;
  --text-muted: #8a93a1;
  --accent: #4a4d55;
  --accent-light: #6a6e76;
  --accent-dark: #2f3238;
  --accent-glow: rgba(16, 18, 24, 0.08);
  --border: rgba(16, 18, 24, 0.08);
  --border-light: rgba(16, 18, 24, 0.12);
  --glass-border: rgba(16, 18, 24, 0.08);
  --shadow: 0 8px 24px rgba(16, 18, 24, 0.06);
  --btn-solid-bg: #16181d;
  --btn-solid-fg: #ffffff;
  --icon-btn-color: #16181d;
}

html, body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif !important;
  background: var(--bg-primary) !important;
  color: var(--text-primary);
  letter-spacing: -0.011em;
}

#particleCanvas { display: none !important; }

.glass,
.glass-strong {
  background: var(--bg-secondary) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  border: 1px solid var(--border) !important;
  box-shadow: none !important;
}

.echo-icon {
  display: inline-block;
  vertical-align: -0.15em;
  flex: 0 0 auto;
}

.icon-btn,
.conv-pill-btn,
.input-action-btn,
.send-btn,
.msg-action-btn,
.cs-delete-btn {
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), opacity var(--transition-fast) !important;
}
.icon-btn:hover,
.input-action-btn:hover {
  background: var(--bg-hover) !important;
  transform: none !important;
}

.btn {
  border-radius: 10px !important;
  font-weight: 580 !important;
  letter-spacing: -0.01em;
  box-shadow: none !important;
}
.btn-glow {
  background: var(--btn-solid-bg) !important;
  color: var(--btn-solid-fg) !important;
  border: 0 !important;
}
.btn-glow:hover { filter: brightness(0.92); transform: none !important; }
.btn-ghost {
  background: transparent !important;
  border: 1px solid var(--border) !important;
  color: var(--text-primary) !important;
}

/* Loader */
#launch-loader { background: var(--bg-primary) !important; }
.loader-echo,
.loader-echo .echo-wordmark-full {
  font-size: 2.4rem !important;
  font-weight: 650 !important;
  letter-spacing: -0.06em !important;
  color: var(--text-primary) !important;
  background: none !important;
  -webkit-text-fill-color: unset !important;
  animation: none !important;
}
.loader-bar-wrap { height: 2px !important; background: var(--border) !important; border: 0 !important; }
.loader-bar-fill {
  background: var(--accent) !important;
  animation: loadProgress 0.7s ease forwards !important;
}

/* Landing */
#landing {
  background: var(--bg-primary) !important;
}
.landing-nav {
  background: color-mix(in srgb, var(--bg-primary) 88%, transparent) !important;
  border: 1px solid var(--border) !important;
  border-radius: 14px !important;
  backdrop-filter: none !important;
}
.landing-nav-brand,
.echo-logo {
  font-weight: 650 !important;
  letter-spacing: -0.06em !important;
  font-size: 1.15rem !important;
}
.echo-logo {
  font-size: 3.4rem !important;
  letter-spacing: -0.07em !important;
  background: none !important;
  -webkit-text-fill-color: unset !important;
  color: var(--text-primary) !important;
}
.echo-mark-e { color: var(--accent) !important; }
.ai-badge {
  background: var(--accent-soft, rgba(110,124,255,.12)) !important;
  border: 1px solid var(--border) !important;
  color: var(--accent-light) !important;
  font-weight: 600 !important;
}
.echo-tagline {
  font-size: 1.15rem !important;
  color: var(--text-secondary) !important;
  font-weight: 430 !important;
  max-width: 34rem;
  margin-inline: auto;
}
.landing-actions { gap: 0.65rem !important; }
.landing-features { gap: 0.45rem !important; justify-content: center; }
.feature-chip {
  background: var(--bg-elevated) !important;
  border: 1px solid var(--border) !important;
  color: var(--text-secondary) !important;
  font-size: 0.78rem !important;
  border-radius: 999px !important;
  padding: 0.35rem 0.75rem !important;
}
.landing-disclaimer {
  background: transparent !important;
  border: 0 !important;
  color: var(--text-muted) !important;
  font-size: 0.78rem !important;
}
.echo-landing-kicker {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 1.1rem;
}

/* Chat layout */
#chat-view.active {
  background: var(--bg-chat);
}
.echo-mode-dock,
#webAccessStatus,
#topModeBar,
#ui-image,
#ui-browser,
#ui-voice,
#ui-music,
#ui-dev,
.landing-features,
.feature-chip,
#landing,
#welcome-view,
#setup-view,
#login-view,
.chat-header-avatar,
.ai-badge,
.conv-pill-btn,
.echo-top-mode-btn {
  display: none !important;
}

.chat-header {
  overflow: visible !important;
  z-index: 40 !important;
}
.chat-header-left {
  overflow: visible !important;
  min-width: 0;
}
.echo-conv-btn {
  appearance: none;
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex: 0 0 auto;
}
.echo-conv-btn:hover,
.echo-conv-btn.is-open,
.echo-conv-btn[aria-expanded="true"] {
  border-color: var(--border-light);
  background: var(--bg-tertiary);
}
.echo-model-menu {
  position: relative;
  flex: 0 1 auto;
  min-width: 0;
  z-index: 50;
}
.echo-model-btn {
  appearance: none;
  height: 36px;
  max-width: min(220px, 48vw);
  padding: 0 0.7rem 0 0.55rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-primary);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  min-width: 0;
}
.echo-model-btn:hover { border-color: var(--border-light); }
.echo-model-btn[aria-expanded="true"] {
  border-color: var(--border-light);
  background: var(--bg-tertiary);
}
.echo-model-btn-ico,
.echo-model-btn-caret {
  display: flex;
  flex: 0 0 auto;
  color: var(--text-muted);
  line-height: 0;
}
.echo-model-btn-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}
#echoModelMenu .model-picker {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: auto;
  bottom: auto;
  width: min(340px, calc(100vw - 1.25rem));
  max-height: min(70vh, 440px);
  overflow-y: auto;
  z-index: 90;
}
#echoModelMenu .model-picker.active {
  display: block !important;
}
#conversationModelControl,
.conversation-model-control,
#activeModelChipContainer {
  display: none !important;
}
.model-picker-icon:empty { display: none; }
.echo-account-menu { position: relative; }
.echo-account-btn {
  appearance: none;
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--icon-btn-color);
  font: inherit;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.echo-account-btn .echo-ri {
  width: 18px !important;
  height: 18px !important;
  display: block !important;
  color: var(--icon-btn-color) !important;
  flex: 0 0 auto;
}
.echo-login-btn {
  appearance: none;
  height: 36px;
  padding: 0 0.95rem;
  border-radius: 12px;
  border: 0;
  background: var(--btn-solid-bg);
  color: var(--btn-solid-fg);
  font: inherit;
  font-size: 0.84rem;
  font-weight: 650;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}
.echo-login-btn[hidden] { display: none !important; }
.echo-account-menu[hidden] { display: none !important; }
.echo-scrim,
.echo-scrim.is-on {
  display: none !important;
}
.chat-header-info { display: none !important; }
.echo-theme-picks {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.45rem;
}
.echo-theme-pick {
  appearance: none;
  height: 40px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-primary);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}
.echo-theme-pick.active {
  border-color: var(--text-primary);
  background: var(--btn-solid-bg);
  color: var(--btn-solid-fg);
}
html.galaxy {
  color-scheme: dark;
  --bg-primary: #070711;
  --bg-secondary: #101018;
  --bg-tertiary: #161622;
  --bg-elevated: #1a1a28;
  --bg-chat: transparent;
  --bg-card: #151522;
  --bg-hover: rgba(255,255,255,0.05);
  --bg-input: #151522;
  --bg-glass: #101018;
  --text-primary: #eef0f8;
  --text-secondary: #a3a8c2;
  --text-muted: #6f7490;
  --accent: #9aa3c7;
  --accent-light: #c5cae0;
  --accent-dark: #6d7390;
  --border: rgba(255,255,255,0.09);
  --border-light: rgba(255,255,255,0.14);
  --glass-border: rgba(255,255,255,0.09);
  --icon-btn-color: #f3f4f7;
  --btn-solid-bg: #eceef6;
  --btn-solid-fg: #12121a;
}
html.galaxy body {
  background:
    radial-gradient(ellipse 90% 55% at 15% -15%, rgba(88, 78, 170, 0.28), transparent 52%),
    radial-gradient(ellipse 70% 45% at 92% 8%, rgba(40, 70, 150, 0.2), transparent 48%),
    #070711 !important;
}
html.galaxy body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.7;
  background-image:
    radial-gradient(1.2px 1.2px at 8% 12%, #fff, transparent),
    radial-gradient(1px 1px at 22% 38%, rgba(255,255,255,.75), transparent),
    radial-gradient(1px 1px at 41% 18%, rgba(255,255,255,.55), transparent),
    radial-gradient(1.4px 1.4px at 63% 28%, #fff, transparent),
    radial-gradient(1px 1px at 81% 14%, rgba(255,255,255,.7), transparent),
    radial-gradient(1px 1px at 91% 42%, rgba(255,255,255,.5), transparent),
    radial-gradient(1px 1px at 14% 68%, rgba(255,255,255,.65), transparent),
    radial-gradient(1.2px 1.2px at 33% 82%, #fff, transparent),
    radial-gradient(1px 1px at 52% 61%, rgba(255,255,255,.55), transparent),
    radial-gradient(1px 1px at 74% 78%, rgba(255,255,255,.7), transparent),
    radial-gradient(1px 1px at 88% 88%, rgba(255,255,255,.45), transparent),
    radial-gradient(1px 1px at 5% 92%, rgba(255,255,255,.5), transparent);
}
html.galaxy #chat-view.active,
html.galaxy .chat-main,
html.galaxy .chat-header {
  background: transparent !important;
}
.echo-account-btn:hover { border-color: var(--border-light); }
.echo-account-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  min-width: 228px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 0.4rem;
  z-index: 80;
}
.echo-account-dropdown[hidden] { display: none !important; }
.echo-account-dropdown:not([hidden]) {
  animation: echoMenuIn 0.22s cubic-bezier(0.16, 1, 0.3, 1) both;
}
@keyframes echoMenuIn {
  from { opacity: 0; transform: translateY(-8px) scale(0.96); }
  to { opacity: 1; transform: none; }
}
.echo-account-dropdown button {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  width: 100%;
  text-align: left;
  background: none;
  border: 0;
  color: var(--text-primary);
  font: inherit;
  font-size: 0.84rem;
  padding: 0.6rem 0.7rem;
  border-radius: 10px;
  cursor: pointer;
}
.echo-account-dropdown button:hover { background: var(--bg-hover); }

.chat-main {
  background: var(--bg-chat) !important;
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.echo-mode-dock {
  background: var(--bg-chat) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  box-shadow: none !important;
  border-bottom: 1px solid var(--border) !important;
}
#welcome-view > div:first-child { display: none !important; }
.chat-header {
  background: var(--bg-chat) !important;
  border-bottom: 1px solid var(--border) !important;
  min-height: 56px !important;
  padding: 0.45rem 0.9rem !important;
  padding-top: calc(0.45rem + env(safe-area-inset-top, 0px)) !important;
}
.chat-header-avatar {
  width: 28px !important;
  height: 28px !important;
  font-size: 0.72rem !important;
  background: var(--accent) !important;
  box-shadow: none !important;
}
.pulse-ring { display: none !important; }
.chat-header-info h3,
#currentConvTitle {
  font-weight: 600 !important;
  font-size: 0.92rem !important;
}
#chatStatusText { color: var(--text-muted) !important; font-size: 0.7rem !important; }
.conv-pill-btn {
  background: var(--bg-hover) !important;
  border: 1px solid var(--border) !important;
  color: var(--text-primary) !important;
  border-radius: 9px !important;
  font-weight: 550 !important;
}
.chat-header-actions .icon-btn {
  background: transparent !important;
  border: 1px solid var(--border) !important;
  color: var(--text-secondary) !important;
  border-radius: 9px !important;
}

/* Sidebar */
.conv-sidebar {
  background: var(--bg-secondary) !important;
  border-right: 1px solid var(--border) !important;
  width: 272px !important;
}
.conv-sidebar-header {
  padding: 0.85rem 0.9rem 0.65rem !important;
  border-bottom: 0 !important;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.conv-sidebar-title {
  font-size: 0.82rem !important;
  font-weight: 650 !important;
  letter-spacing: -0.02em;
}
.echo-sidebar-brand {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex: 1;
  min-width: 0;
  width: auto;
  font-weight: 650;
  letter-spacing: -0.04em;
}
.echo-sidebar-new-btn {
  width: 32px !important;
  height: 32px !important;
  color: var(--icon-btn-color) !important;
}
.echo-sidebar-search {
  width: 100%;
  margin-top: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 0.38rem 0.55rem;
}
.echo-sidebar-search input {
  flex: 1;
  min-width: 0;
  background: none;
  border: 0;
  color: var(--text-primary);
  font: inherit;
  font-size: 0.8rem;
  outline: none;
}
.echo-sidebar-search input::placeholder { color: var(--text-muted); }
.conv-sidebar-list { padding: 0.35rem 0.45rem 0.8rem; }
.conv-sidebar-item {
  border: 0 !important;
  border-radius: 9px !important;
  padding: 0.55rem 0.6rem !important;
  margin-bottom: 2px;
  gap: 0.5rem !important;
  transition: background var(--transition-fast) !important;
}
.conv-sidebar-item:hover { background: var(--bg-hover) !important; padding-left: 0.6rem !important; }
.conv-sidebar-item.active {
  background: var(--accent-soft, rgba(110,124,255,.12)) !important;
}
.cs-title {
  font-size: 0.82rem;
  font-weight: 550;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cs-preview {
  font-size: 0.7rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cs-delete-btn {
  opacity: 0;
  border: 0;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  width: 26px;
  height: 26px;
  border-radius: 7px;
}
.conv-sidebar-item:hover .cs-delete-btn { opacity: 1; }
.cs-delete-btn:hover { color: var(--danger); background: rgba(240,113,120,.1); }
.cs-dot { display: none; }
.conv-sidebar-new {
  padding: 0.7rem 0.75rem 0.9rem !important;
  border-top: 1px solid var(--border);
  gap: 0.4rem !important;
}
.echo-new-chat-btn {
  display: flex !important;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  width: 100%;
  height: 38px;
  border-radius: 9px !important;
  background: var(--btn-solid-bg) !important;
  color: var(--btn-solid-fg) !important;
  border: 0 !important;
  font-weight: 600 !important;
  font-size: 0.86rem !important;
  cursor: pointer;
  font-family: inherit;
}
.echo-new-chat-btn:hover { filter: brightness(0.92); }

@media (min-width: 1024px) {
  #chat-view.active {
    flex-direction: row !important;
  }
  #chat-view .conv-sidebar {
    position: relative !important;
    transform: none !important;
    visibility: visible !important;
    pointer-events: auto !important;
    height: 100% !important;
    max-height: 100% !important;
    flex: 0 0 272px;
    width: 272px !important;
  }
  #chat-view.echo-sidebar-collapsed .conv-sidebar {
    flex-basis: 0 !important;
    width: 0 !important;
    min-width: 0 !important;
    overflow: hidden !important;
    border: 0 !important;
    padding: 0 !important;
  }
  #chat-view.active {
    width: 100% !important;
    height: 100% !important;
    min-height: 100dvh;
  }
  #chat-view .chat-main {
    flex: 1 1 auto;
    min-width: 0;
    width: auto !important;
    height: 100%;
  }
  .chat-messages {
    padding: 1.35rem 2.4rem 2.2rem !important;
  }
  .chat-input-area {
    padding-left: 2.4rem !important;
    padding-right: 2.4rem !important;
  }
  .message-bubble.user { max-width: min(68%, 900px) !important; }
  .message-bubble.echo { max-width: min(92%, 1200px) !important; }
  .conv-sidebar-overlay { display: none !important; }
}

/* Conversation column */
.chat-messages {
  width: 100% !important;
  max-width: none !important;
  margin-inline: 0;
  padding: 1.1rem 1rem 1.6rem !important;
  gap: 1rem !important;
  background: transparent !important;
  flex: 1 1 auto !important;
  min-height: 0;
}
.message-bubble {
  font-size: 1rem !important;
  line-height: 1.6 !important;
  padding: 0.9rem 1.1rem 0.75rem !important;
  box-shadow: none !important;
  max-width: min(92%, 980px) !important;
  border-radius: 22px !important;
  min-width: 4.5rem;
  position: relative !important;
  overflow: visible !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  animation: echoFade 180ms ease both !important;
  box-sizing: border-box !important;
}
.message-bubble.user {
  background: #1b1e27 !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--border) !important;
  outline: none !important;
  border-radius: 22px 22px 8px 22px !important;
  padding: 0.9rem 1.15rem 0.75rem !important;
  max-width: min(72%, 860px) !important;
  margin-left: auto !important;
  box-shadow: none !important;
  transform: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}
.message-bubble.echo,
.message-bubble.echo.ai-message,
.message-bubble.echo.echo-streaming-message {
  background: #1b1e27 !important;
  border: 1px solid var(--border) !important;
  outline: none !important;
  color: var(--text-primary) !important;
  width: fit-content !important;
  max-width: min(88%, 720px) !important;
  padding: 0.9rem 1.1rem 0.75rem !important;
  border-radius: 22px 22px 22px 8px !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}
.message-bubble .msg-time { opacity: 0.55; font-size: 0.62rem !important; }
.echo-thinking {
  margin: 0 0 0.7rem !important;
  max-width: 100% !important;
  overflow: hidden !important;
  border-radius: 12px !important;
  box-sizing: border-box !important;
}
.echo-thinking summary {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding-right: 0.5rem;
}
.msg-actions {
  position: absolute !important;
  top: auto !important;
  bottom: calc(100% + 6px) !important;
  left: 6px !important;
  right: auto !important;
  display: none !important;
  flex-wrap: nowrap !important;
  align-items: center;
  gap: 2px !important;
  margin: 0 !important;
  width: max-content !important;
  max-width: none !important;
  background: var(--bg-elevated) !important;
  border: 1px solid var(--border) !important;
  box-shadow: 0 8px 22px rgba(0,0,0,0.28) !important;
  border-radius: 10px !important;
  padding: 3px !important;
  z-index: 8;
}
.message-bubble.user .msg-actions {
  left: auto !important;
  right: 6px !important;
}
.message-bubble:hover .msg-actions,
.message-bubble:focus-within .msg-actions {
  display: none !important;
}
.message-bubble.show-actions .msg-actions {
  display: flex !important;
}
.msg-action-btn {
  width: 26px !important;
  height: 26px !important;
  color: var(--text-secondary);
  flex: 0 0 auto;
}
.message-bubble:hover { transform: none !important; }
@media (hover: hover) and (pointer: fine) {
  .message-bubble:hover .msg-actions {
    display: flex !important;
  }
}
@media (hover: none), (pointer: coarse) {
  .message-bubble {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
  }
  .message-bubble.show-actions {
    -webkit-user-select: text;
    user-select: text;
  }
}

@keyframes echoFade {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

.echo-code-block {
  margin: 0.7rem 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: #0e1016;
}
.echo-code-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.35rem 0.7rem;
  background: #141821;
  border-bottom: 1px solid var(--border);
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.echo-code-copy {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: 7px;
  padding: 2px 8px;
  font-size: 0.68rem;
  cursor: pointer;
  font-family: inherit;
}
.echo-code-copy:hover { color: var(--text-primary); border-color: var(--border-light); }
.echo-code-block pre {
  margin: 0;
  padding: 0.85rem 0.95rem;
  overflow: auto;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.55;
}

/* Empty home */
.echo-empty-home {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2.5rem 1.25rem 1rem;
  width: 100%;
  max-width: none;
  margin: auto;
  flex: 1 1 auto;
  min-height: 0;
}
.echo-empty-home[hidden] { display: none !important; }
.chat-main:has(#echoEmptyHome:not([hidden])) .chat-messages {
  display: none !important;
}
.echo-empty-logo {
  width: 64px;
  height: 64px;
  border-radius: 20px;
  display: grid;
  place-items: center;
  margin: 0 auto 1.05rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
}
.echo-empty-mark {
  font-size: 1.85rem;
  font-weight: 720;
  letter-spacing: -0.08em;
  line-height: 1;
  color: var(--text-primary);
}
.echo-empty-home h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 650;
  letter-spacing: -0.055em;
  margin-bottom: 0.45rem;
}
@keyframes echoEnterLogo {
  from { opacity: 0; transform: translateY(14px) scale(0.86); }
  to { opacity: 1; transform: none; }
}
@keyframes echoEnterUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}
.echo-empty-home.is-entering .echo-empty-logo {
  animation: echoEnterLogo 0.85s cubic-bezier(0.16, 1, 0.3, 1) both;
}
#chat-view.view-enter,
#chat-view.active.view-enter {
  animation: viewEnter 0.45s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.echo-empty-home.is-entering h1 {
  animation: echoEnterUp 0.55s 0.1s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.echo-empty-home.is-entering > p {
  animation: echoEnterUp 0.5s 0.18s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.echo-empty-home.is-entering .echo-empty-card:nth-child(1) {
  animation: echoEnterUp 0.5s 0.26s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.echo-empty-home.is-entering .echo-empty-card:nth-child(2) {
  animation: echoEnterUp 0.5s 0.32s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.echo-empty-home.is-entering .echo-empty-card:nth-child(3) {
  animation: echoEnterUp 0.5s 0.38s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.echo-empty-home.is-entering .echo-empty-card:nth-child(4) {
  animation: echoEnterUp 0.5s 0.44s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.echo-empty-home p {
  color: var(--text-secondary);
  font-size: 1.02rem;
  margin-bottom: 1.6rem;
}
.echo-empty-suggestions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
  width: min(920px, 92%);
}
.echo-empty-card {
  appearance: none;
  text-align: left;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0.85rem 0.95rem;
  color: var(--text-primary);
  cursor: pointer;
  font-family: inherit;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.echo-empty-card:hover { border-color: var(--border-light); background: var(--bg-tertiary); }
.echo-empty-card strong { display: block; font-size: 0.86rem; font-weight: 600; margin-bottom: 0.18rem; }
.echo-empty-card span { display: block; font-size: 0.75rem; color: var(--text-muted); line-height: 1.4; }

@media (max-width: 560px) {
  .echo-empty-suggestions { grid-template-columns: 1fr; }
}

/* Input */
.chat-input-area {
  width: 100%;
  max-width: none;
  margin: 0;
  background: transparent !important;
  border: 0 !important;
  padding: 0.15rem 0.85rem calc(0.85rem + env(safe-area-inset-bottom, 0px)) !important;
}
.chat-input-wrapper {
  background: var(--bg-elevated) !important;
  border: 1px solid var(--border) !important;
  border-radius: 22px !important;
  margin: 0 !important;
  padding: 0.42rem 0.45rem 0.42rem 0.7rem !important;
  box-shadow: 0 8px 28px rgba(0,0,0,0.12) !important;
  gap: 0.2rem !important;
  flex-wrap: nowrap !important;
  align-items: flex-end !important;
  overflow: visible !important;
}
.emoji-picker-container,
#userEmojiPanel {
  display: none !important;
}
.chat-input-wrapper:focus-within {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border)) !important;
}
.chat-input {
  font-size: 0.95rem !important;
  line-height: 1.45 !important;
  padding: 0.45rem 0.35rem !important;
  min-height: 24px !important;
  max-height: 168px !important;
  overflow-y: auto !important;
  field-sizing: content;
}
.chat-input::placeholder { color: var(--text-muted) !important; }
.send-btn {
  width: 36px !important;
  height: 36px !important;
  border-radius: 12px !important;
  background: var(--btn-solid-bg) !important;
  color: var(--btn-solid-fg) !important;
  box-shadow: none !important;
}
.send-btn .echo-ri { color: var(--btn-solid-fg); }
.send-btn:hover { filter: brightness(0.92); transform: none !important; }
.conversation-model-control {
  background: var(--bg-hover) !important;
  border: 1px solid var(--border) !important;
  height: 34px !important;
  max-width: 160px !important;
}
.intelligence-slider-bar {
  background: transparent !important;
  border: 0 !important;
  margin: 0.15rem 0.2rem 0.45rem !important;
  padding: 0.1rem 0.15rem !important;
}
.intelligence-slider-name { font-size: 0.7rem !important; color: var(--text-secondary) !important; }

/* Typing */
.typing-indicator {
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
}

/* Tooltips-ish titles already exist; menus */
.model-picker,
#echoModelMenu .model-picker {
  background: var(--bg-elevated) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--border) !important;
  box-shadow: var(--shadow) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  border-radius: 16px !important;
}
.model-picker-item {
  -webkit-appearance: none !important;
  appearance: none !important;
  width: 100%;
  text-align: left;
  font: inherit;
  background: var(--bg-tertiary) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--border) !important;
  border-radius: 12px !important;
  margin: 0 0 0.35rem !important;
}
.model-picker-item.selected,
.model-picker-item:hover {
  background: var(--bg-hover) !important;
  border-color: var(--border-light) !important;
}
.model-picker-name {
  color: var(--text-primary) !important;
}
.model-picker-desc,
.model-picker-provider {
  color: var(--text-muted) !important;
}
.model-picker-provider {
  background: var(--bg-hover) !important;
  border-color: var(--border) !important;
}
.model-picker-title {
  color: var(--text-muted) !important;
}

html.light .message-bubble.user,
html.light .message-bubble.echo,
html.light .message-bubble.echo.ai-message {
  background: #ffffff !important;
  color: var(--text-primary) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}
html.galaxy .message-bubble.user,
html.galaxy .message-bubble.echo,
html.galaxy .message-bubble.echo.ai-message {
  background: #1a1a28 !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}
html.light .echo-code-block { background: #f3f4f7; }
html.light .echo-code-toolbar { background: #e9ebf0; color: var(--text-secondary); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

.echo-ri {
  display: block;
  flex: 0 0 auto;
  pointer-events: none;
}
.input-action-btn,
.echo-conv-btn,
.echo-account-btn,
.echo-model-btn,
.icon-btn {
  color: var(--icon-btn-color) !important;
}
.input-action-btn .echo-ri,
.echo-conv-btn .echo-ri,
.echo-model-btn-ico,
.echo-model-btn-caret,
.echo-account-btn .echo-ri {
  color: var(--icon-btn-color);
}
.mic-btn.recording,
.mic-btn.recording .echo-ri { color: #ff4d6d !important; }
.input-action-btn {
  width: 36px !important;
  height: 36px !important;
  border-radius: 12px !important;
}
.chat-input-area { flex-shrink: 0; }
.echo-empty-home {
  min-height: 0;
  overflow: auto;
}
.icon-btn {
  border-radius: 12px !important;
}
.echo-new-chat-btn {
  border-radius: 14px !important;
}
.message-bubble.user { border-radius: 22px 22px 8px 22px !important; }
.message-bubble.echo { border-radius: 22px 22px 22px 8px !important; }
.model-picker-item {
  border-radius: 12px !important;
}
#echoModelMenu .model-picker {
  border-radius: 16px !important;
  padding: 0.45rem !important;
}
.scroll-down-btn {
  border-radius: 14px !important;
}
.chat-img-preview,
.chat-file-preview {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.65rem;
  margin: 0 0 0.4rem;
  background: var(--bg-elevated) !important;
  border: 1px solid var(--border) !important;
  border-radius: 14px !important;
  color: var(--text-secondary);
  font-size: 0.75rem;
}
.chat-file-preview { flex-wrap: wrap; }
.echo-file-chip {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  margin: 0.35rem 0 0.15rem;
  padding: 0.7rem 0.85rem;
  max-width: 100%;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: inherit;
  text-decoration: none;
}
.echo-file-chip-name {
  font-weight: 650;
  font-size: 0.84rem;
  word-break: break-all;
}
.echo-file-chip-meta {
  font-size: 0.72rem;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .chat-messages { padding: 0.85rem 0.75rem 1.2rem !important; }
  .message-bubble { max-width: 90% !important; font-size: 1.02rem !important; }
  .message-bubble.user { max-width: 90% !important; padding: 0.95rem 1.15rem 0.8rem !important; }
  .message-bubble.echo { max-width: 94% !important; }
  .chat-input-area { width: 100%; flex-shrink: 0; }
  .echo-empty-home {
    padding: 0.45rem 0.85rem 0.35rem;
    justify-content: flex-start;
  }
  .echo-empty-logo { width: 48px; height: 48px; border-radius: 16px; margin-bottom: 0.45rem; }
  .echo-empty-home h1 { font-size: 1.45rem; margin-bottom: 0.2rem; }
  .echo-empty-home > p { font-size: 0.88rem; margin-bottom: 0.7rem; }
  .cs-delete-btn { opacity: 1; }
  .chat-header {
    padding-top: calc(0.55rem + env(safe-area-inset-top, 0px) + 10px) !important;
    padding-left: max(0.75rem, env(safe-area-inset-left, 0px)) !important;
    padding-right: max(0.75rem, env(safe-area-inset-right, 0px)) !important;
  }
  .conv-sidebar {
    padding-top: env(safe-area-inset-top, 0px) !important;
  }
  #chat-view,
  #chat-view.active {
    height: 100dvh !important;
  }
  #echoModelMenu .model-picker {
    width: min(340px, calc(100vw - 1.5rem));
    max-height: min(62dvh, 480px);
  }
}

@media (max-height: 640px) {
  .echo-empty-suggestions { display: none !important; }
  .echo-empty-home > p { display: none; }
}

@media (display-mode: standalone) {
  .chat-header {
    padding-top: calc(0.6rem + env(safe-area-inset-top, 0px) + 8px) !important;
  }
  .conv-sidebar {
    padding-top: env(safe-area-inset-top, 0px) !important;
  }
}


@media (min-width: 1024px) {
  /* pc-full-chat */
  #chat-view.active {
    flex-direction: row !important;
    width: 100% !important;
    height: 100% !important;
    min-height: 100dvh !important;
  }
  .chat-messages {
    width: 100% !important;
    max-width: none !important;
    padding: 1.35rem 2.4rem 2.2rem !important;
  }
  .chat-input-area {
    width: 100% !important;
    max-width: none !important;
    padding-left: 2.4rem !important;
    padding-right: 2.4rem !important;
  }
  .message-bubble.user { max-width: min(68%, 900px) !important; }
  .message-bubble.echo { max-width: min(92%, 1200px) !important; }
}

/* echo-bubble-fix: no glass square around bubbles / composer */
.message-bubble.echo::before,
.message-bubble.echo::after,
.message-bubble.user::before,
.message-bubble.user::after,
.chat-input-area::before,
.chat-input-area::after,
.chat-input-wrapper::before,
.chat-input-wrapper::after,
#standardInputArea::before,
#standardInputArea::after {
  content: none !important;
  display: none !important;
}
.chat-input-area,
#standardInputArea {
  background: transparent !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  border: 0 !important;
  box-shadow: none !important;
}
.intelligence-slider-bar {
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
}
.message-bubble.echo,
.message-bubble.echo.ai-message {
  width: fit-content !important;
  max-width: min(88%, 720px) !important;
}

@media (min-width: 1100px) and (hover: hover) and (pointer: fine) {
  /* echo-pc-desktop */
  #chat-view.active { flex-direction: row !important; }
  #chat-view .conv-sidebar {
    flex: 0 0 300px !important;
    width: 300px !important;
  }
  .chat-header {
    min-height: 52px !important;
    padding: 0.4rem 1.15rem !important;
  }
  .echo-conv-btn,
  .echo-account-btn,
  .input-action-btn {
    width: 32px !important;
    height: 32px !important;
    border-radius: 10px !important;
  }
  .send-btn {
    width: 34px !important;
    height: 34px !important;
  }
  .echo-model-btn { height: 32px !important; font-size: 0.82rem !important; }
  .echo-login-btn { height: 32px; font-size: 0.8rem; }
  .chat-messages { padding: 1.15rem 2.6rem 1.5rem !important; }
  .chat-input-area { padding: 0.35rem 2.6rem 1.05rem !important; }
  .chat-input-wrapper {
    max-width: 920px;
    margin-left: auto !important;
    margin-right: auto !important;
    padding: 0.32rem 0.4rem 0.32rem 0.85rem !important;
  }
  .intelligence-slider-bar {
    max-width: 920px;
    margin-left: auto !important;
    margin-right: auto !important;
  }
  .message-bubble { font-size: 0.95rem !important; }
  .conv-sidebar-item { padding: 0.55rem 0.7rem !important; }
}

.echo-md-h {
  font-weight: 680;
  letter-spacing: -0.03em;
  line-height: 1.3;
  margin: 1rem 0 0.4rem;
  color: var(--text-primary);
}
.echo-md-h1 { font-size: 1.22rem; margin-top: 0.35rem; }
.echo-md-h2 { font-size: 1.1rem; }
.echo-md-h3 { font-size: 1.02rem; }
.echo-md-h4, .echo-md-h5, .echo-md-h6 { font-size: 0.95rem; }
.message-bubble .echo-md-h:first-child { margin-top: 0.15rem; }
.echo-md-table-wrap {
  margin: 0.75rem 0;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255,255,255,0.03);
}
.echo-md-table {
  width: 100%;
  min-width: 280px;
  border-collapse: collapse;
  font-size: 0.86rem;
  line-height: 1.45;
}
.echo-md-table th,
.echo-md-table td {
  padding: 0.55rem 0.7rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--border);
}
.echo-md-table th {
  font-weight: 650;
  white-space: nowrap;
  background: rgba(255,255,255,0.05);
}
.echo-md-table tr:last-child td { border-bottom: 0; }
.echo-md-table td { overflow-wrap: anywhere; }
.echo-md-li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin: 0.28rem 0;
  line-height: 1.5;
}
.echo-md-bullet {
  width: 6px;
  height: 6px;
  margin-top: 0.55em;
  border-radius: 50%;
  background: var(--text-secondary);
  flex: 0 0 auto;
}
.echo-md-num {
  min-width: 1.35em;
  color: var(--text-secondary);
  font-weight: 650;
  font-size: 0.85em;
  text-align: right;
  flex: 0 0 auto;
}
.echo-md-quote {
  margin: 0.55rem 0;
  padding: 0.35rem 0 0.35rem 0.75rem;
  border-left: 3px solid var(--border-light);
  color: var(--text-secondary);
}
.echo-md-hr {
  border: 0;
  height: 1px;
  background: var(--border);
  margin: 0.8rem 0;
}
.echo-md-code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.05rem 0.35rem;
}
.echo-code-lang { text-transform: uppercase; letter-spacing: 0.04em; }
html.light .echo-md-table-wrap { background: #fff; }
html.light .echo-md-table th { background: #f4f5f7; }
html.light .echo-md-code { background: #f3f4f7; }
html.light .echo-code-block { background: #f6f7f9; }
html.light .echo-code-toolbar { background: #e9ebf0; }

.echo-stream-content.is-streaming,
.echo-progressive-text.is-streaming {
  white-space: normal !important;
  overflow-wrap: anywhere;
}

/* Admin dashboard + bug report v117 */
#admin-view .admin-title { font-size: 1.05rem; font-weight: 700; letter-spacing: -0.02em; }
#admin-view .echo-admin-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  justify-content: flex-end;
}
#admin-view .echo-admin-link {
  border: 0;
  background: transparent;
  color: var(--text-secondary);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.35rem 0.55rem;
  border-radius: 10px;
  cursor: pointer;
}
#admin-view .echo-admin-link:hover { background: var(--bg-hover); color: var(--text-primary); }
#admin-view .admin-chat-input-area,
#admin-view #quickReplies,
#admin-view #adminReplyBar { display: none !important; }
#admin-view .admin-chat-header-actions { display: none !important; }
#admin-view .conv-last-msg { color: var(--text-muted); font-size: 0.75rem; }
.echo-admin-home {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 0.7rem;
  padding: 2.5rem 2rem;
  height: 100%;
  box-sizing: border-box;
}
.echo-admin-home-mark {
  width: 44px; height: 44px; border-radius: 14px;
  display: grid; place-items: center;
  background: var(--bg-elevated); border: 1px solid var(--border);
  font-weight: 800; font-size: 1.2rem;
}
.echo-admin-home h2 { margin: 0; font-size: 1.45rem; letter-spacing: -0.03em; }
.echo-admin-home-lead { margin: 0; max-width: 34rem; color: var(--text-secondary); line-height: 1.55; }
.echo-admin-online-live {
  font-size: 0.92rem; font-weight: 650; color: var(--text-primary);
  padding: 0.45rem 0.75rem; border-radius: 999px;
  border: 1px solid var(--border); background: var(--bg-elevated);
}
.echo-admin-home-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 0.4rem; }
.echo-admin-privacy {
  max-width: 28rem; margin: 2rem auto; text-align: left;
  padding: 1.25rem 1.3rem; border: 1px solid var(--border);
  border-radius: 18px; background: var(--bg-elevated);
}
.echo-admin-privacy p { color: var(--text-secondary); line-height: 1.55; margin: 0.5rem 0 1rem; }
.bug-report-modal { max-width: 720px; width: min(720px, 94vw); }
.bug-snippet-head {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.8rem; font-weight: 650; margin: 0.4rem 0 0.45rem;
  color: var(--text-secondary);
}
.bug-picker-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 0.7rem; }
@media (max-width: 720px) { .bug-picker-layout { grid-template-columns: 1fr; } }
.bug-message-picker, .bug-snippet-preview {
  max-height: 240px; overflow: auto; border: 1px solid var(--border);
  border-radius: 14px; background: var(--bg-secondary); padding: 0.4rem;
}
.bug-pick-item {
  display: flex; flex-direction: column; gap: 0.15rem; width: 100%;
  text-align: left; border: 1px solid transparent; background: transparent;
  color: inherit; font: inherit; border-radius: 10px; padding: 0.45rem 0.55rem; cursor: pointer;
}
.bug-pick-item:hover { background: var(--bg-hover); }
.bug-pick-item.is-on { border-color: var(--border-light); background: var(--bg-elevated); }
.bug-pick-who { font-size: 0.68rem; font-weight: 700; color: var(--text-muted); }
.bug-pick-text { font-size: 0.8rem; color: var(--text-primary); line-height: 1.35; }
.bug-preview-empty, .bug-picker-empty { color: var(--text-muted); font-size: 0.8rem; padding: 0.8rem; }
.bug-preview-bubble {
  border-radius: 12px; padding: 0.45rem 0.6rem; margin: 0.3rem 0;
  border: 1px solid var(--border); background: var(--bg-elevated); font-size: 0.8rem; line-height: 1.4;
}
.bug-preview-bubble span { display: block; font-size: 0.65rem; font-weight: 700; color: var(--text-muted); margin-bottom: 0.15rem; }
.bug-preview-bubble.user { margin-left: 1.5rem; }
.bug-preview-bubble.echo { margin-right: 1.5rem; }
.ticket-snippet { margin-top: 0.75rem; padding-top: 0.6rem; border-top: 1px solid var(--border); }
.ticket-snippet-label { font-size: 0.72rem; font-weight: 700; color: var(--text-muted); margin-bottom: 0.4rem; }