@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300..900;1,9..144,300..900&display=swap');

:root {
  --color-bg: #f5f5fb;
  --color-bg-secondary: #ededf5;
  --color-bg-card: #ffffff;
  --color-surface: #f0f0f8;
  --color-text: #1a1a1a;
  --color-text-secondary: #666666;
  --color-text-muted: #999999;
  --color-border: #dddde8;
  --color-input-border: #c8c8d8;
  --color-primary: #6366f1;
  --color-danger: #d93025;
  --color-tag-bg: #ede9fe;
  --color-tag-text: #4f46e5;
  --color-shadow: rgba(0, 0, 0, 0.08);
  --color-toast-success: #34a853;
  --color-toast-error: #d93025;
  --color-status-todo: #5f6368;
  --color-status-todo-bg: #e8eaed;
  --color-status-in-progress: #6366f1;
  --color-status-in-progress-bg: #ede9fe;
  --color-status-done: #34a853;
  --color-status-done-bg: #e6f4ea;
  --color-priority-low: #5f9ea0;
  --color-priority-low-bg: #e0f2f1;
  --color-priority-medium: #f9a825;
  --color-priority-medium-bg: #fff8e1;
  --color-priority-high: #d93025;
  --color-priority-high-bg: #fce8e6;
  --color-wikilink: #7b1fa2;
  --color-wikilink-bg: #f3e5f5;
  --color-overdue: #d93025;
  --color-code-bg: #f0f0f8;
  --color-code-inline-bg: #eaeaf4;
  --color-table-stripe: #f4f4fb;
  --color-success: #22c55e;
  --color-warning: #eab308;
  --color-input-bar-bg: #eaeaf3;
  --color-input-bar-text: #1a1a1a;
  --color-input-bar-placeholder: rgba(0, 0, 0, 0.4);
  --color-overlay: rgba(0, 0, 0, 0.45);
  --color-bubble-user-bg: rgba(0, 0, 0, 0.04);
  --color-bubble-user-border: rgba(0, 0, 0, 0.10);
  --color-bubble-user-text: #3a3a4a;
  --color-bubble-asst-shadow: 0 2px 16px rgba(99, 102, 241, 0.10), 0 1px 4px rgba(0, 0, 0, 0.06);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-pill: 9999px;
  --focus-ring: 0 0 0 2px color-mix(in srgb, var(--color-primary) 40%, transparent);
  /* Layout */
  --page-max-width: 1200px;
  --page-padding-x: 1rem;
  --sidebar-width: 260px;
}

[data-theme="dark"] {
  --color-bg: #111113;
  --color-bg-secondary: #18181f;
  --color-bg-card: #1e1e27;
  --color-surface: #1a1b22;
  --color-text: #e4e4f0;
  --color-text-secondary: #8888a8;
  --color-text-muted: #52526a;
  --color-border: rgba(99, 102, 241, 0.10);
  --color-input-border: rgba(99, 102, 241, 0.22);
  --color-primary: #818cf8;
  --color-danger: #f44336;
  --color-tag-bg: #2a2a45;
  --color-tag-text: #a5b4fc;
  --color-shadow: rgba(0, 0, 0, 0.4);
  --color-toast-success: #4caf50;
  --color-toast-error: #f44336;
  --color-status-todo: #9aa0a6;
  --color-status-todo-bg: #2a2a35;
  --color-status-in-progress: #818cf8;
  --color-status-in-progress-bg: #2a2a45;
  --color-status-done: #4caf50;
  --color-status-done-bg: #1b3a20;
  --color-priority-low: #80cbc4;
  --color-priority-low-bg: #1a3a38;
  --color-priority-medium: #fdd835;
  --color-priority-medium-bg: #3a3520;
  --color-priority-high: #f44336;
  --color-priority-high-bg: #3a1a1a;
  --color-wikilink: #c4b5fd;
  --color-wikilink-bg: #2a1a45;
  --color-overdue: #f44336;
  --color-code-bg: #16161d;
  --color-code-inline-bg: #1e1e2d;
  --color-table-stripe: #16161e;
  --color-success: #4ade80;
  --color-warning: #facc15;
  --color-input-bar-bg: #1e1e27;
  --color-input-bar-text: #e4e4f0;
  --color-input-bar-placeholder: rgba(228, 228, 240, 0.35);
  --color-overlay: rgba(0, 0, 0, 0.65);
  --color-bubble-user-bg: rgba(255, 255, 255, 0.04);
  --color-bubble-user-border: rgba(255, 255, 255, 0.10);
  --color-bubble-user-text: #b0b0c8;
  --color-bubble-asst-shadow: 0 4px 28px rgba(99, 102, 241, 0.14), 0 2px 8px rgba(0, 0, 0, 0.4);
}

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen, Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
  transition: background-color 0.2s, color 0.2s;
}

h1, h2, h3 {
  font-family: 'Fraunces', Georgia, serif;
  font-optical-sizing: auto;
}

input:focus-visible,
textarea:focus-visible,
select:focus-visible,
button:focus-visible,
a:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-sm);
}

button:not(:disabled):active,
.btn:not(:disabled):active,
[role="button"]:not(:disabled):active {
  transform: scale(0.97);
  transition: transform 0.08s ease;
}

/* Responsive breakpoints: 480px (phone), 768px (tablet), 1024px (desktop) */
@media (max-width: 768px) {
  .hide-mobile {
    display: none !important;
  }
  button,
  [role="button"],
  .btn-new-conv,
  .btn-send {
    min-height: 44px;
  }
}
@media (min-width: 769px) {
  .hide-desktop {
    display: none !important;
  }
}

/* Thin indigo-tinted scrollbars */
::-webkit-scrollbar {
  width: 4px;
  height: 4px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(99, 102, 241, 0.25);
  border-radius: 9999px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(99, 102, 241, 0.45);
}

/* Floating inline assist button (teleported to body, cannot be scoped) */
.inline-assist-btn {
  position: fixed;
  z-index: 150;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 0.3rem 0.8rem;
  font-size: 0.8rem;
  cursor: pointer;
  box-shadow: 0 2px 8px var(--color-shadow);
  white-space: nowrap;
}
.inline-assist-btn:hover {
  filter: brightness(1.1);
}