:root {
  --paper: #efeee7;
  --paper-raised: #f8f7f2;
  --ink: #22241e;
  --ink-muted: #6d6c61;
  --line: #dad6c8;
  --claude: #c1622e;
  --claude-tint: #f6e6da;
  --gemini: #4653c9;
  --gemini-tint: #e3e5f8;
  --radius: 10px;
}

[data-theme='dark'] {
  --paper: #1b1c18;
  --paper-raised: #232420;
  --ink: #ece9df;
  --ink-muted: #97958a;
  --line: #34352f;
  --claude: #e0824f;
  --claude-tint: #3a2a1f;
  --gemini: #8891f2;
  --gemini-tint: #262a4a;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Inter', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.15s ease, color 0.15s ease;
}

[hidden] {
  display: none !important;
}

/* =========================================================
   Shared bits: brand mark, form fields
   ========================================================= */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 20px;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.01em;
}

.brand--small h1 {
  font-size: 17px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-bottom: 14px;
}

.field label {
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-muted);
}

.field input,
.field select {
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Inter', sans-serif;
  font-size: 14px;
}

.field input:focus,
.field select:focus {
  outline: 2px solid var(--claude);
  outline-offset: 1px;
}

/* =========================================================
   Auth screen (login / sign up)
   ========================================================= */
.auth-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.auth-card {
  width: 100%;
  max-width: 360px;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 32px 28px;
}

.auth-card .brand {
  justify-content: center;
  margin-bottom: 2px;
}

.auth-tagline {
  text-align: center;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 4px 0 24px;
}

.auth-error {
  color: #c0402c;
  font-size: 12.5px;
  min-height: 16px;
  margin: 2px 0 12px;
}

#authSubmit {
  width: 100%;
  padding: 11px;
  border: none;
  border-radius: 8px;
  background: var(--claude);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
}

#authSubmit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.auth-switch {
  text-align: center;
  margin-top: 18px;
  font-size: 13px;
  color: var(--ink-muted);
}

.auth-switch button {
  background: none;
  border: none;
  color: var(--claude);
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  padding: 0 0 0 4px;
}

/* =========================================================
   App shell: sidebar + main
   ========================================================= */
.app {
  display: flex;
  height: 100vh;
  width: 100%;
  background: var(--paper-raised);
  position: relative;
}

.sidebar {
  width: 260px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--line);
  background: var(--paper);
}

.sidebar-top {
  padding: 18px 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  border-bottom: 1px solid var(--line);
}

.new-chat-btn {
  width: 100%;
  padding: 9px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-raised);
  color: var(--ink);
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 13.5px;
  cursor: pointer;
}

.new-chat-btn:hover {
  border-color: var(--claude);
  color: var(--claude);
}

.conversation-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.conv-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  padding: 9px 10px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
  color: var(--ink);
  border: 1px solid transparent;
}

.conv-item:hover {
  background: var(--paper-raised);
}

.conv-item.active {
  background: var(--paper-raised);
  border-color: var(--line);
  font-weight: 600;
}

.conv-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.conv-delete {
  flex-shrink: 0;
  opacity: 0;
  background: none;
  border: none;
  color: var(--ink-muted);
  cursor: pointer;
  font-size: 13px;
  padding: 2px 4px;
  border-radius: 4px;
}

.conv-item:hover .conv-delete {
  opacity: 1;
}

.conv-delete:hover {
  color: #c0402c;
}

.conversation-empty {
  padding: 14px 10px;
  font-size: 12.5px;
  color: var(--ink-muted);
  font-style: italic;
}

.profile-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 16px;
  border-top: 1px solid var(--line);
  background: none;
  border-left: none;
  border-right: none;
  border-bottom: none;
  cursor: pointer;
  width: 100%;
  text-align: left;
  color: var(--ink);
}

.profile-btn:hover {
  background: var(--paper-raised);
}

.avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--claude);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11.5px;
  font-weight: 700;
  font-family: 'Space Grotesk', sans-serif;
  flex-shrink: 0;
}

.profile-name {
  flex: 1;
  font-size: 13.5px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.profile-gear {
  color: var(--ink-muted);
  font-size: 13px;
}

.sidebar-backdrop {
  display: none;
}

/* =========================================================
   Main column: header, log, composer
   ========================================================= */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.app-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 22px;
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}

.menu-btn {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  cursor: pointer;
  color: var(--ink);
  flex-shrink: 0;
}

.controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.station-toggle {
  display: flex;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.station {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 9px 14px;
  background: transparent;
  border: none;
  font-family: 'Inter', sans-serif;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-muted);
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.station:not(:last-child) { border-right: 1px solid var(--line); }

.station-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.35;
}

.station--claude.active {
  background: var(--claude-tint);
  color: var(--claude);
}
.station--claude.active .station-dot {
  opacity: 1;
}

.station--gemini.active {
  background: var(--gemini-tint);
  color: var(--gemini);
}
.station--gemini.active .station-dot {
  opacity: 1;
}

.station-badge {
  font-size: 9px;
  font-family: 'IBM Plex Mono', monospace;
  padding: 2px 6px;
  border-radius: 20px;
  background: var(--line);
  color: var(--ink-muted);
  margin-left: 2px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.model-select {
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11.5px;
  letter-spacing: 0.02em;
  max-width: 230px;
  cursor: pointer;
}

.model-select:focus {
  outline: 2px solid var(--accent, var(--claude));
  outline-offset: 1px;
}

.log {
  flex: 1;
  overflow-y: auto;
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.empty-state {
  margin: auto;
  text-align: center;
  color: var(--ink-muted);
  font-size: 14px;
  max-width: 320px;
  line-height: 1.5;
}

.empty-state-sub {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11.5px;
  margin-top: 8px;
}

.msg {
  max-width: 78%;
  animation: rise 0.18s ease;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.msg--user {
  align-self: flex-end;
}

.msg--ai {
  align-self: flex-start;
  border-left: 2px solid var(--accent, var(--claude));
  padding-left: 12px;
}

.msg-meta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent, var(--ink-muted));
  margin-bottom: 4px;
}

.msg--user .msg-meta {
  color: var(--ink-muted);
  text-align: right;
}

.msg-bubble {
  font-size: 14.5px;
  line-height: 1.55;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.msg--user .msg-bubble {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px 13px;
}

.msg--ai .msg-bubble.thinking {
  color: var(--ink-muted);
  font-style: italic;
}

.msg--error .msg-bubble {
  color: #c0402c;
}

.msg-files {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.msg-files img {
  border-radius: 8px;
  max-width: 300px;
  max-height: 300px;
}

.msg-file-tag {
  display: inline-block;
  padding: 6px 10px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 12px;
  color: var(--ink);
}

.composer {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px 22px;
  border-top: 1px solid var(--line);
  background: var(--paper-raised);
}

.composer-input-wrapper {
  display: flex;
  align-items: flex-end;
  gap: 8px;
}

.attach-btn {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.attach-btn:hover {
  background: var(--paper-raised);
}

.composer-attachments {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.file-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 12px;
  color: var(--ink);
}

.file-tag-remove {
  cursor: pointer;
  color: var(--ink-muted);
  font-weight: bold;
  padding: 0 4px;
}

.file-tag-remove:hover {
  color: var(--ink);
}

#input {
  flex: 1;
  resize: none;
  max-height: 160px;
  padding: 10px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  font-family: 'Inter', sans-serif;
  font-size: 14.5px;
  line-height: 1.5;
}

#input:focus {
  outline: 2px solid var(--accent, var(--claude));
  outline-offset: 1px;
}

#sendBtn {
  align-self: flex-end;
  padding: 10px 18px;
  border: none;
  border-radius: var(--radius);
  background: var(--accent, var(--claude));
  color: #fff;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: opacity 0.15s ease;
}

#sendBtn:hover {
  opacity: 0.88;
}

#sendBtn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* =========================================================
   Settings modal
   ========================================================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(20, 20, 15, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 60;
  padding: 20px;
}

.modal {
  width: 100%;
  max-width: 440px;
  max-height: 85vh;
  overflow-y: auto;
  background: var(--paper-raised);
  border-radius: 14px;
  border: 1px solid var(--line);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: var(--paper-raised);
}

.modal-header h2 {
  margin: 0;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 17px;
}

.modal-close {
  background: none;
  border: none;
  font-size: 15px;
  cursor: pointer;
  color: var(--ink-muted);
  width: 28px;
  height: 28px;
}

.modal-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.settings-section h3 {
  margin: 0 0 10px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
}

.settings-hint {
  font-size: 12.5px;
  color: var(--ink-muted);
  line-height: 1.55;
  margin: 4px 0 12px;
}

.settings-hint a {
  color: var(--claude);
}

.hint {
  font-size: 12.5px;
  color: var(--ink-muted);
  line-height: 1.55;
  margin: 4px 0 12px;
}

.hint a {
  color: var(--claude);
}

.modal-error {
  font-size: 13px;
  color: #c9453b;
  margin: 8px 0;
  min-height: 18px;
}

.key-field {
  flex-direction: row !important;
  gap: 8px;
}

.key-field input {
  flex: 1;
}

.key-field button {
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  cursor: pointer;
}

.settings-save-btn {
  padding: 10px;
  border: none;
  border-radius: 8px;
  background: var(--ink);
  color: var(--paper);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
}

.settings-saved-msg {
  font-size: 12px;
  color: #3a7d4f;
  min-height: 14px;
  text-align: center;
  margin: 0;
}

.settings-saved-msg.error {
  color: #c0402c;
}

.modal-submit-btn {
  width: 100%;
  padding: 10px;
  border: none;
  border-radius: 8px;
  background: var(--ink);
  color: var(--paper);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
}

.settings-divider {
  border: none;
  border-top: 1px solid var(--line);
  margin: 0;
}

.support-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.support-email-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.support-email-btn:hover {
  background: var(--gemini-tint);
  color: var(--gemini);
  border-color: var(--gemini);
}

.logout-btn {
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: none;
  color: #c0402c;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
}

/* =========================================================
   Responsive: sidebar becomes a drawer on small screens
   ========================================================= */
@media (max-width: 720px) {
  .app {
    max-width: none;
  }

  .menu-btn {
    display: flex;
  }

  .sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    width: 82vw;
    max-width: 300px;
    z-index: 50;
    transform: translateX(-100%);
    transition: transform 0.2s ease;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-backdrop.visible {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(20, 20, 15, 0.35);
    z-index: 45;
  }

  .app-header {
    padding: 14px 16px;
  }
  .log {
    padding: 16px;
  }
  .composer {
    padding: 12px 16px;
  }
  .msg {
    max-width: 90%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .msg {
    animation: none;
  }
}

/* ============================================================
   PASTE THESE ADDITIONS INTO YOUR style.css
   ============================================================ */

/* Image station colour — purple to match the image gen theme */
.station--image.active {
  background: #f3eeff;
  color: #7c3aed;
}
.station--image.active .station-dot {
  opacity: 1;
}

/* Fix station separators now that there are 3 stations (not 2).
   Replace the existing .station:first-child rule with this: */
.station:not(:last-child) {
  border-right: 1px solid var(--line);
}

/* Settings badge (used next to "OpenRouter API key" heading) */
.settings-badge {
  font-size: 10px;
  font-family: 'IBM Plex Mono', monospace;
  padding: 2px 7px;
  border-radius: 20px;
  background: #f3eeff;
  color: #7c3aed;
  margin-left: 6px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  vertical-align: middle;
}

/* Dark-mode overrides for the above */
[data-theme="dark"] .station--image.active {
  background: rgba(124, 58, 237, 0.15);
  color: #a78bfa;
}
[data-theme="dark"] .settings-badge {
  background: rgba(124, 58, 237, 0.2);
  color: #a78bfa;
}