/* ===== Eve UI Component Library ===== */
/* Version 1.0 — Light + Dark mode */

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

/* ── Colors ── */
:root {
  --c-bg: #f5f5f7;
  --c-surface: #fff;
  --c-border: #e5e5ea;
  --c-text: #1d1d1f;
  --c-text-secondary: #8e8e93;
  --c-text-tertiary: #c7c7cc;
  --c-accent: #007aff;
  --c-accent-hover: #0066d6;
  --c-success: #34c759;
  --c-danger: #ff3b30;
  --c-warning: #ff9500;
  --c-purple: #af52de;
  --c-radius-sm: 6px;
  --c-radius-md: 10px;
  --c-radius-lg: 14px;
  --c-radius-xl: 16px;
  --c-shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --c-shadow-md: 0 2px 8px rgba(0,0,0,0.06);
  --c-shadow-lg: 0 4px 16px rgba(0,0,0,0.1);
  --c-blur: blur(20px);
  --c-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans SC', sans-serif;
}

[data-theme="dark"] {
  --c-bg: #1c1c1e;
  --c-surface: #2c2c2e;
  --c-border: #3a3a3c;
  --c-text: #f5f5f7;
  --c-text-secondary: #98989d;
  --c-text-tertiary: #636366;
  --c-shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
  --c-shadow-md: 0 2px 8px rgba(0,0,0,0.3);
  --c-shadow-lg: 0 4px 16px rgba(0,0,0,0.4);
}

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 4px;
  border: none; border-radius: var(--c-radius-md); cursor: pointer;
  font-family: var(--c-font); font-weight: 500; transition: all 0.15s;
  flex-shrink: 0; user-select: none; text-decoration: none;
}
.btn:disabled { opacity: 0.3; cursor: default; }
.btn-primary { background: var(--c-accent); color: #fff; padding: 10px 18px; font-size: 14px; }
.btn-primary:hover:not(:disabled) { background: var(--c-accent-hover); }
.btn-secondary { background: transparent; border: 1px solid var(--c-border); color: var(--c-text-secondary); padding: 8px 16px; font-size: 13px; }
.btn-secondary:hover:not(:disabled) { border-color: var(--c-accent); color: var(--c-accent); }
.btn-ghost { background: transparent; border: none; color: var(--c-text-secondary); padding: 6px; font-size: 14px; border-radius: var(--c-radius-sm); }
.btn-ghost:hover:not(:disabled) { background: rgba(0,122,255,0.08); color: var(--c-accent); }
.btn-icon { width: 34px; height: 34px; padding: 0; display: flex; align-items: center; justify-content: center; border-radius: var(--c-radius-md); }
.btn-danger { background: var(--c-danger); color: #fff; padding: 8px 16px; font-size: 13px; }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-xs { padding: 3px 8px; font-size: 10px; border-radius: 4px; }

/* ── Cards ── */
.card {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--c-radius-lg); transition: all 0.2s;
}
.card-hover:hover { border-color: var(--c-accent); box-shadow: var(--c-shadow-lg); transform: translateY(-1px); }
.card-row { display: flex; align-items: center; gap: 12px; padding: 0; overflow: hidden; }
.card-body { flex: 1; padding: 12px 12px 12px 0; min-width: 0; }
.card-icon { width: 48px; height: 48px; border-radius: var(--c-radius-md); display: flex; align-items: center; justify-content: center; font-size: 22px; margin: 10px; flex-shrink: 0; }

/* ── Toggle Switch ── */
.toggle { width: 48px; min-width: 48px; height: 36px; min-height: 36px; cursor: pointer; display: flex; align-items: center; justify-content: center; padding: 0; margin: 0; border: none; background: transparent; flex-shrink: 0; }
.toggle-track { width: 36px; height: 20px; border-radius: 12px; background: var(--c-border); transition: all 0.2s; position: relative; box-shadow: inset 0 1px 3px rgba(0,0,0,0.1); flex-shrink: 0; }
.toggle-thumb { width: 16px; height: 16px; border-radius: 50%; background: #fff; position: absolute; top: 2px; left: 2px; transition: all 0.2s; box-shadow: 0 1px 3px rgba(0,0,0,0.2); }
.toggle.active .toggle-track { background: var(--c-success); }
.toggle.active .toggle-thumb { left: 18px; }

/* ── Tags / Badges ── */
.tag { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 10px; font-weight: 500; }
.tag-blue { background: rgba(0,122,255,0.12); color: var(--c-accent); }
.tag-green { background: rgba(52,199,89,0.12); color: var(--c-success); }
.tag-orange { background: rgba(255,149,0,0.12); color: var(--c-warning); }
.tag-purple { background: rgba(175,82,222,0.12); color: var(--c-purple); }
.tag-red { background: rgba(255,59,48,0.12); color: var(--c-danger); }

/* ── Chips (files, tags) ── */
.chip { display: flex; align-items: center; gap: 4px; padding: 3px 8px; border-radius: var(--c-radius-sm); font-size: 11px; font-weight: 500; max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chip-blue { background: rgba(0,122,255,0.1); border: 1px solid rgba(0,122,255,0.2); color: var(--c-accent); }
.chip-green { background: rgba(52,199,89,0.1); border: 1px solid rgba(52,199,89,0.2); color: var(--c-success); }
.chip .remove { cursor: pointer; font-size: 10px; opacity: 0.5; margin-left: 2px; flex-shrink: 0; }
.chip .remove:hover { opacity: 1; }
[data-theme="dark"] .chip-blue { background: rgba(0,122,255,0.15); border-color: rgba(0,122,255,0.3); color: #40a9ff; }
[data-theme="dark"] .chip-green { background: rgba(52,199,89,0.15); border-color: rgba(52,199,89,0.3); color: #34c759; }

/* ── Inputs ── */
.input { width: 100%; border: 1px solid var(--c-border); border-radius: var(--c-radius-md); padding: 10px 12px; font-size: 14px; font-family: var(--c-font); outline: none; color: var(--c-text); background: var(--c-surface); transition: border-color 0.2s; }
.input:focus { border-color: var(--c-accent); }
.input::placeholder { color: var(--c-text-tertiary); }
.input-wrap-icon { position: relative; }
.input-wrap-icon .input { padding-left: 34px; }
.input-wrap-icon .icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--c-text-secondary); }
.textarea { resize: none; line-height: 1.5; max-height: 120px; }

/* ── Chat Input Container ── */
.chat-input { display: flex; align-items: flex-end; gap: 8px; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--c-radius-xl); padding: 8px 8px 8px 12px; box-shadow: var(--c-shadow-sm); transition: all 0.2s; }
.chat-input:focus-within { border-color: var(--c-accent); box-shadow: 0 2px 12px rgba(0,122,255,0.12); }
.chat-input textarea { flex: 1; border: none; background: transparent; padding: 4px 0; font-size: 14px; font-family: var(--c-font); outline: none; color: var(--c-text); resize: none; max-height: 120px; line-height: 1.5; }
.chat-input textarea::placeholder { color: var(--c-text-tertiary); }
.chat-input-actions { display: flex; align-items: center; gap: 4px; flex-shrink: 0; }

/* ── Tabs / Model Bar ── */
.tab-bar { display: flex; gap: 6px; justify-content: center; padding: 6px 0 0; font-size: 11px; }
.tab { padding: 2px 8px; border-radius: 10px; cursor: pointer; color: var(--c-text-secondary); transition: all 0.15s; font-weight: 500; user-select: none; }
.tab:hover { background: rgba(0,122,255,0.08); }
.tab.active { background: rgba(0,122,255,0.12); color: var(--c-accent); }
.tab-sep { width: 1px; background: var(--c-border); margin: 0 2px; }
[data-theme="dark"] .tab:hover { background: rgba(0,122,255,0.12); }
[data-theme="dark"] .tab.active { background: rgba(0,122,255,0.2); color: #40a9ff; }

/* ── Filter Buttons ── */
.filter-bar { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.filter-btn { padding: 3px 10px; border-radius: 12px; border: 1px solid var(--c-border); background: transparent; color: var(--c-text-secondary); font-size: 11px; cursor: pointer; transition: all 0.15s; font-family: var(--c-font); }
.filter-btn:hover { border-color: var(--c-accent); color: var(--c-accent); }
.filter-btn.active { background: var(--c-accent); border-color: var(--c-accent); color: #fff; }

/* ── Dropdown ── */
.dropdown { position: absolute; top: 100%; left: 0; right: 0; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--c-radius-md); box-shadow: var(--c-shadow-lg); z-index: 100; display: none; max-height: 250px; overflow-y: auto; }
.dropdown-item { padding: 10px 16px; cursor: pointer; font-size: 14px; color: var(--c-text); display: flex; align-items: center; gap: 8px; transition: background 0.1s; }
.dropdown-item:hover, .dropdown-item.active { background: #f0f0f5; }
.dropdown-item .hint { color: var(--c-text-secondary); font-size: 11px; margin-left: auto; }
[data-theme="dark"] .dropdown-item:hover, [data-theme="dark"] .dropdown-item.active { background: #3a3a3c; }

/* ── Modal ── */
.modal-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; z-index: 9999; background: rgba(0,0,0,0.4); display: flex; align-items: center; justify-content: center; padding: 20px; }
.modal { background: var(--c-surface); border-radius: var(--c-radius-xl); padding: 24px; max-width: 500px; width: 100%; box-shadow: 0 20px 60px rgba(0,0,0,0.2); max-height: 80vh; overflow-y: auto; }
.modal-title { font-size: 18px; font-weight: 600; margin-bottom: 20px; }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; }

/* ── Sidebar Shortcuts ── */
.sidebar-shortcut { width: 32px; height: 32px; border-radius: var(--c-radius-sm); cursor: grab; display: flex; align-items: center; justify-content: center; font-size: 16px; position: relative; transition: all 0.15s; }
.sidebar-shortcut:hover { background: rgba(0,122,255,0.12); }
.sidebar-shortcut:active { cursor: grabbing; }
[data-theme="dark"] .sidebar-shortcut:hover { background: rgba(0,122,255,0.15); }

/* ── Persona Menu ── */
.persona-item { padding: 4px 0; cursor: pointer; font-size: 13px; display: flex; align-items: center; gap: 8px; border-radius: var(--c-radius-sm); transition: background 0.1s; }
.persona-item:hover { background: rgba(0,122,255,0.08); }
.persona-item.active { background: rgba(0,122,255,0.12); color: var(--c-accent); }
.persona-item .p-icon { font-size: 16px; }
.persona-item .p-name { font-weight: 500; }
.persona-item .p-title { font-size: 11px; color: var(--c-text-secondary); margin-left: auto; }
.persona-divider { border-top: 1px solid var(--c-border); margin: 4px 0; }
.persona-exit { padding: 6px 0; cursor: pointer; font-size: 12px; color: var(--c-text-secondary); text-align: center; }
.persona-exit:hover { color: var(--c-danger); }

/* ── Voice Overlay ── */
.voice-overlay { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; z-index: 999; background: rgba(0,0,0,0.5); backdrop-filter: var(--c-blur); align-items: center; justify-content: center; flex-direction: column; padding: 40px; }
.voice-overlay.active { display: flex; }
.voice-bubble { background: var(--c-accent); color: #fff; padding: 12px 20px; border-radius: var(--c-radius-xl); font-size: 14px; max-width: 400px; text-align: center; display: none; }

/* ── Preview Panel ── */
.preview-panel { flex: 1; display: none; flex-direction: column; }
.preview-panel.active { display: flex; }
.preview-bar { display: flex; align-items: center; gap: 8px; padding: 8px 20px; background: rgba(255,255,255,0.85); backdrop-filter: var(--c-blur); border-bottom: 1px solid var(--c-border); flex-shrink: 0; }
[data-theme="dark"] .preview-bar { background: rgba(28,28,30,0.85); }
.preview-bar .back { cursor: pointer; color: var(--c-accent); font-size: 13px; display: flex; align-items: center; gap: 4px; background: none; border: none; padding: 4px; border-radius: 4px; }
.preview-bar .back:hover { background: rgba(0,122,255,0.1); }
.preview-btn { cursor: pointer; color: var(--c-text-secondary); font-size: 16px; padding: 4px 6px; border-radius: 4px; transition: all 0.15s; user-select: none; background: none; border: none; }
.preview-btn:hover { background: rgba(0,0,0,0.04); color: var(--c-text); }
[data-theme="dark"] .preview-btn:hover { background: rgba(255,255,255,0.08); color: var(--c-text); }

/* ── Thinking / Loading ── */
.thinking { display: flex; align-items: center; gap: 8px; padding: 12px 16px; margin: 8px 0; border-radius: var(--c-radius-lg); background: var(--c-surface); border: 1px solid var(--c-border); font-size: 12px; color: var(--c-text-secondary); }
.dots { display: flex; gap: 3px; }
.dots span { width: 6px; height: 6px; border-radius: 50%; background: var(--c-accent); animation: dotPulse 1s ease-in-out infinite; }
.dots span:nth-child(2) { animation-delay: 0.2s; }
.dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes dotPulse { 0%,100% { opacity: 0.3; } 50% { opacity: 1; } }

/* ── Messages ── */
.msg { padding: 12px 16px; margin: 8px 0; border-radius: var(--c-radius-lg); font-size: 14px; line-height: 1.6; position: relative; }
.msg.user { background: rgba(0,122,255,0.08); border: 1px solid rgba(0,122,255,0.12); color: var(--c-text); }
.msg.assistant { background: var(--c-surface); border: 1px solid var(--c-border); color: var(--c-text); }
[data-theme="dark"] .msg.assistant { background: #2c2c2e; }
.copy-btn { background: none; border: none; cursor: pointer; padding: 2px 4px; border-radius: 4px; color: var(--c-text-tertiary); font-size: 14px; display: inline-flex; align-items: center; transition: all 0.15s; }
.copy-btn:hover { color: var(--c-accent); background: rgba(0,122,255,0.08); }

/* ── Reasoning Panel ── */
.reasoning { margin: 4px 0; }
.reasoning-header { display: flex; align-items: center; gap: 6px; padding: 6px 12px; cursor: pointer; font-size: 12px; color: var(--c-text-secondary); border-radius: var(--c-radius-sm); transition: background 0.1s; user-select: none; }
.reasoning-header:hover { background: rgba(0,0,0,0.03); }
[data-theme="dark"] .reasoning-header:hover { background: rgba(255,255,255,0.05); }
.reasoning-label { font-weight: 500; }
.reasoning-body { padding: 8px 12px; font-size: 12px; color: var(--c-text-secondary); line-height: 1.5; display: none; border-left: 2px solid var(--c-accent); margin: 0 12px; }
[data-theme="dark"] .reasoning-body { background: #2c2c2e; color: #98989d; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #d1d1d6; border-radius: 2px; }
[data-theme="dark"] ::-webkit-scrollbar-thumb { background: #48484a; }

/* ── Empty State ── */
.empty-state { display: flex; flex-direction: column; align-items: center; justify-content: center; flex: 1; color: var(--c-text-tertiary); gap: 12px; padding: 40px; }
.empty-state svg { width: 48px; height: 48px; stroke: #d1d1d6; }
[data-theme="dark"] .empty-state svg { stroke: #48484a; }

/* ── Utility classes (for migrating inline styles) ── */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-center { align-items: center; justify-content: center; }
.flex-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.gap-4 { gap: 4px; }
.gap-6 { gap: 6px; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }

.flex-1 { flex: 1; }
.shrink-0 { flex-shrink: 0; }

.text-sm { font-size: 12px; }
.text-xs { font-size: 11px; }
.text-2xs { font-size: 10px; }
.text-muted { color: var(--c-text-secondary); }
.text-tertiary { color: var(--c-text-tertiary); }
.text-accent { color: var(--c-accent); }
.text-danger { color: var(--c-danger); }
.text-center { text-align: center; }
.text-ellipsis { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.font-600 { font-weight: 600; }
.font-500 { font-weight: 500; }
.line-clamp { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

.p-4 { padding: 4px; }
.p-8 { padding: 8px; }
.p-12 { padding: 12px; }
.p-16 { padding: 16px; }
.px-4 { padding-left: 4px; padding-right: 4px; }
.px-8 { padding-left: 8px; padding-right: 8px; }
.py-4 { padding-top: 4px; padding-bottom: 4px; }
.py-8 { padding-top: 8px; padding-bottom: 8px; }

.m-0 { margin: 0; }
.mt-4 { margin-top: 4px; }
.mt-8 { margin-top: 8px; }
.mb-4 { margin-bottom: 4px; }
.mb-8 { margin-bottom: 8px; }
.ml-auto { margin-left: auto; }

.rounded-sm { border-radius: 4px; }
.rounded-md { border-radius: 8px; }
.rounded-lg { border-radius: 12px; }
.rounded-xl { border-radius: 16px; }
.rounded-full { border-radius: 50%; }

.border { border: 1px solid var(--c-border); }
.border-top { border-top: 1px solid var(--c-border); }
.border-accent { border-color: var(--c-accent); }

.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hidden { display: none; }
.block { display: block; }
.relative { position: relative; }
.absolute { position: absolute; }
.cursor-pointer { cursor: pointer; }
.user-select-none { user-select: none; }

.w-full { width: 100%; }
.h-full { height: 100%; }
.overflow-auto { overflow: auto; }
.overflow-hidden { overflow: hidden; }

/* ── Spinner ── */
.spinner { width:20px; height:20px; border:2px solid var(--c-border); border-top-color:var(--c-accent); border-radius:50%; animation:spin 0.6s linear infinite; }
@keyframes spin { to { transform:rotate(360deg); } }

/* ── Unified Modal ── */
.modal-overlay { position:fixed; top:0; left:0; right:0; bottom:0; z-index:9999; background:rgba(0,0,0,0.5); backdrop-filter:blur(4px); display:flex; align-items:center; justify-content:center; padding:20px; }
.modal { background:var(--c-surface); border:1px solid var(--c-border); border-radius:14px; max-width:460px; width:100%; max-height:80vh; overflow-y:auto; box-shadow:0 20px 60px rgba(0,0,0,0.2); }
.modal-title { font-size:15px; font-weight:600; padding:16px 20px 0; }
.modal-body { padding:12px 20px; font-size:13px; color:var(--c-text-secondary); line-height:1.6; }
.modal-body input, .modal-body textarea, .modal-body select { width:100%; background:var(--c-bg); border:1px solid var(--c-border); border-radius:8px; padding:8px 12px; font-size:13px; color:var(--c-text); font-family:inherit; outline:none; margin-bottom:8px; box-sizing:border-box; }
.modal-body input:focus, .modal-body textarea:focus { border-color:var(--c-accent); }
.modal-actions { display:flex; gap:8px; justify-content:flex-end; padding:12px 20px 16px; }