/* ═══════════════════════════════════════════════════════════
   Files2Prompt — Practiae-inspired theme
   Palette: oklch purple/warm · Glass UI · System sans-serif
   ═══════════════════════════════════════════════════════════ */

:root{
  --bg: oklch(0.97 0 264);
  --bg-dark: oklch(0.93 0 264);
  --surface: oklch(1 0 264);
  --text: oklch(0.15 0 264);
  --muted: oklch(0.556 0 89.876);
  --border: oklch(0 0 0 / 0.08);
  --accent: oklch(0.65 0.15 264);
  --accent-hover: oklch(0.55 0.18 264);
  --accent-bg: oklch(0.65 0.15 264 / 0.08);
  --hover: oklch(0 0 0 / 0.03);
  --success: #1A7F37;
  --success-bg: rgba(26,127,55,.08);
  --danger: #CF222E;
  --danger-bg: rgba(207,34,46,.08);
  --warning: #9A6700;
  --warning-bg: rgba(154,103,0,.08);
  --shadow-s: 0 1px 3px oklch(0 0 0 / 0.04), 0 1px 2px oklch(0 0 0 / 0.06);
  --shadow-m: 0 2px 12px oklch(0 0 0 / 0.06);
  --shadow-l: 0 8px 30px oklch(0 0 0 / 0.08);
  --radius: 12px;
  --radius-sm: 8px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --mono: 'SF Mono', SFMono-Regular, Consolas, 'Liberation Mono', Menlo, monospace;
  --gradient: linear-gradient(135deg, oklch(0.55 0.18 264) 0%, oklch(0.42 0.14 280) 100%);
  --transition: 0.2s ease;
  --budget-green: #1A7F37;
  --budget-yellow: #9A6700;
  --budget-red: #CF222E;
}
[data-theme=dark]{
  --bg: oklch(0.12 0 264);
  --bg-dark: oklch(0.08 0 264);
  --surface: oklch(0.18 0 264);
  --text: oklch(0.92 0 264);
  --muted: oklch(0.6 0 264);
  --border: oklch(1 0 0 / 0.08);
  --accent: oklch(0.75 0.15 264);
  --accent-hover: oklch(0.65 0.18 264);
  --accent-bg: oklch(0.75 0.15 264 / 0.1);
  --hover: oklch(1 0 0 / 0.04);
  --shadow-s: 0 1px 3px oklch(0 0 0 / 0.15);
  --shadow-m: 0 2px 12px oklch(0 0 0 / 0.2);
  --shadow-l: 0 8px 30px oklch(0 0 0 / 0.3);
  --budget-green: #3FB950;
  --budget-yellow: #D29922;
  --budget-red: #F85149;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.5;height:100vh;overflow:hidden;display:flex;flex-direction:column}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
button{font-family:var(--font);cursor:pointer;border:none;background:none;color:var(--text)}
input,textarea,select{font-family:var(--font);color:var(--text)}

/* ─── Header ─── */
.header{
  background:oklch(1 0 0 / 0.82);
  backdrop-filter:blur(16px) saturate(150%);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  border-bottom:1px solid var(--border);
  padding:14px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;flex-shrink:0;
  box-shadow:0 1px 8px oklch(0 0 0 / 0.04);
}
[data-theme=dark] .header{
  background:oklch(0.15 0 264 / 0.85);
}
.header-left{display:flex;align-items:center;gap:10px}
.logo{font-size:1.3rem}
.header-title{font-family:var(--font);font-size:1.15rem;font-weight:500;letter-spacing:0.02em}
.header-subtitle{font-size:.72rem;color:var(--muted);font-style:italic}
.header-right{display:flex;align-items:center;gap:8px}
.icon-btn{
  width:34px;height:34px;border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;font-size:1rem;
  transition:all var(--transition);
  border:1px solid var(--border);background:var(--surface);
}
.icon-btn:hover{background:var(--hover);border-color:var(--accent);box-shadow:var(--shadow-s)}

/* Mode tabs */
.mode-tabs{display:flex;gap:0;padding:0;flex-shrink:0}
.mode-tab{
  padding:8px 18px;font-size:.85rem;font-weight:500;
  border:1.5px solid var(--border);background:var(--surface);
  cursor:pointer;transition:all var(--transition);color:var(--muted);
  font-family:var(--font);
}
.mode-tab:first-child{border-radius:var(--radius-sm) 0 0 var(--radius-sm)}
.mode-tab:last-child{border-radius:0 var(--radius-sm) var(--radius-sm) 0;border-left:none}
.mode-tab.active{background:var(--gradient);color:#fff;border-color:var(--accent)}
.mode-tab:not(.active):hover{background:var(--hover);color:var(--text);border-color:oklch(0 0 0 / 0.12)}

/* ─── Input Bar ─── */
.input-bar{margin:14px auto 0;padding:0 24px;width:100%;flex-shrink:0}
.input-row{display:flex;gap:8px;align-items:stretch}
.repo-input{
  flex:1;padding:11px 16px;
  border:1.5px solid var(--border);border-radius:var(--radius);
  background:var(--surface);font-size:.95rem;font-family:var(--font);
  outline:none;transition:border-color var(--transition),box-shadow var(--transition);
}
.repo-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-bg)}
.repo-input::placeholder{color:var(--muted);opacity:0.6}

/* ─── Buttons ─── */
.btn{
  padding:10px 20px;border-radius:var(--radius);font-size:.88rem;font-weight:500;
  transition:all var(--transition);display:inline-flex;align-items:center;gap:6px;
  white-space:nowrap;font-family:var(--font);letter-spacing:0.01em;
}
.btn-primary{
  background:var(--gradient);color:#fff;border:none;
}
.btn-primary:hover{filter:brightness(1.1);transform:translateY(-1px);box-shadow:0 4px 16px oklch(0.55 0.18 264 / 0.25)}
.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}
.btn-secondary{
  background:var(--surface);color:var(--text);
  border:1.5px solid var(--border);
}
.btn-secondary:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-bg)}
.btn-success{
  background:var(--success);color:#fff;border:none;
}
.btn-success:hover{filter:brightness(1.1);transform:translateY(-1px);box-shadow:0 4px 12px rgba(26,127,55,0.2)}
.btn-sm{padding:6px 14px;font-size:.8rem}
.btn-danger{background:var(--danger);color:#fff;border:none}
.btn-danger:hover{filter:brightness(1.1)}

/* ─── Drop zone ─── */
.drop-zone{
  border:2px dashed var(--border);border-radius:var(--radius);
  padding:44px 20px;text-align:center;cursor:pointer;
  transition:all var(--transition);background:var(--surface);
}
.drop-zone:hover,.drop-zone.drag-over{border-color:var(--accent);background:var(--accent-bg)}
.drop-zone-icon{font-size:2.5rem;margin-bottom:10px;opacity:.6}
.drop-zone-title{font-size:1.05rem;font-weight:500;margin-bottom:4px}
.drop-zone-desc{font-size:.85rem;color:var(--muted);line-height:1.6}
.drop-zone-or{margin:14px 0;color:var(--muted);font-size:.8rem}
.drop-zone-btn-row{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.browser-warning{margin-top:12px;padding:8px 12px;border-radius:var(--radius-sm);background:var(--warning-bg);color:var(--warning);font-size:.8rem;display:none}

.folder-name-display{margin:0 auto;padding:0 24px 4px;width:100%;display:none;align-items:center;gap:8px;font-size:.88rem;flex-shrink:0}
.folder-name-display.visible{display:flex}
.folder-name-display .folder-path{font-family:var(--mono);font-weight:600;color:var(--accent);word-break:break-all}

/* ─── Controls ─── */
.controls{margin:0 auto;padding:8px 24px;width:100%;display:none;flex-wrap:wrap;gap:8px;align-items:center;flex-shrink:0}
.controls.visible{display:flex}
.branch-select{
  padding:7px 12px;border:1.5px solid var(--border);border-radius:var(--radius-sm);
  background:var(--surface);font-size:.82rem;outline:none;max-width:200px;
  transition:border-color var(--transition);
}
.branch-select:focus{border-color:var(--accent)}
.ref-input{
  padding:7px 12px;border:1.5px solid var(--border);border-radius:var(--radius-sm);
  background:var(--surface);font-size:.82rem;outline:none;max-width:240px;
  transition:border-color var(--transition);font-family:monospace;
}
.ref-input:focus{border-color:var(--accent)}
.ref-input::placeholder{font-family:var(--font);opacity:.5}
.filter-input{
  padding:7px 12px;border:1.5px solid var(--border);border-radius:var(--radius-sm);
  background:var(--surface);font-size:.82rem;outline:none;
  flex:1;min-width:180px;max-width:300px;
  transition:border-color var(--transition),box-shadow var(--transition);
}
.filter-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-bg)}
.controls-right{margin-left:auto;display:flex;gap:8px;align-items:center}
.file-count{font-size:.8rem;color:var(--muted)}

/* ─── Budget Bar ─── */
.budget-bar{margin:0 auto;padding:4px 24px 8px;width:100%;display:none;gap:10px;align-items:center;flex-wrap:wrap;flex-shrink:0}
.budget-bar.visible{display:flex}
.budget-label{font-size:.8rem;font-weight:500;white-space:nowrap}
.budget-select{
  padding:5px 10px;border:1.5px solid var(--border);border-radius:var(--radius-sm);
  background:var(--surface);font-size:.8rem;outline:none;
  transition:border-color var(--transition);
}
.budget-select:focus{border-color:var(--accent)}
.budget-track{flex:1;min-width:200px;height:8px;background:var(--bg-dark);border-radius:4px;overflow:hidden;position:relative}
.budget-fill{height:100%;border-radius:4px;transition:width .3s ease,background .3s ease;width:0}
.budget-fill.green{background:var(--budget-green)}
.budget-fill.yellow{background:var(--budget-yellow)}
.budget-fill.red{background:var(--budget-red)}
.budget-fill.pulse{animation:budgetPulse .8s ease-in-out infinite alternate}
@keyframes budgetPulse{from{opacity:1}to{opacity:.5}}
.budget-text{font-size:.75rem;font-family:var(--mono);color:var(--muted);white-space:nowrap;min-width:160px;text-align:right}

/* ─── Main Panels ─── */
.main{margin:0 auto;padding:0 24px 12px;width:100%;flex:1;display:none;gap:16px;overflow:hidden;min-height:0}
.main.visible{display:grid;grid-template-columns:minmax(250px,var(--tree-max-w,400px)) 1fr}
@media(max-width:800px){.main.visible{grid-template-columns:1fr;grid-template-rows:auto 1fr}}

.panel{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;min-height:0;
  box-shadow:var(--shadow-s);
}
.panel-header{
  padding:12px 16px;border-bottom:1px solid var(--border);
  font-size:.88rem;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  background:linear-gradient(135deg, oklch(0.55 0.18 264) 0%, oklch(0.42 0.14 280) 100%);
  color:#fff;flex-shrink:0;
}
[data-theme=dark] .panel-header{
  background:linear-gradient(135deg, oklch(0.40 0.16 264) 0%, oklch(0.30 0.12 280) 100%);
  color:#fff;
}
.panel-header .btn-secondary{
  background:oklch(1 0 0 / 0.92);color:oklch(0.35 0.14 264);border-color:oklch(1 0 0 / 0.6);
  font-weight:600;
}
.panel-header .btn-secondary:hover{
  background:#fff;color:oklch(0.30 0.16 264);border-color:#fff;
}
.panel-header span[style*="color"]{color:oklch(1 0 0 / 0.7) !important}
.panel-body{overflow-y:auto;flex:1;min-height:0;scrollbar-width:thin;scrollbar-color:oklch(0 0 0 / 0.1) transparent}
.tree{padding:4px 0;font-size:.84rem}

/* ─── Tree Nodes ─── */
.tree-node{display:flex;align-items:center;gap:4px;padding:4px 10px;cursor:pointer;transition:background 0.1s;user-select:none;border-radius:4px;margin:0 4px}
.tree-node:hover{background:var(--accent-bg)}
.tree-node.filtered-out{display:none}
.tree-indent{flex-shrink:0}
.tree-toggle{width:16px;height:16px;display:flex;align-items:center;justify-content:center;font-size:.65rem;color:var(--muted);flex-shrink:0;transition:transform .15s}
.tree-toggle.open{transform:rotate(90deg)}
.tree-toggle.hidden{visibility:hidden}
.tree-cb{width:15px;height:15px;accent-color:var(--accent);flex-shrink:0;cursor:pointer}
.tree-icon{flex-shrink:0;font-size:.82rem;width:18px;text-align:center}
.tree-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tree-tokens{font-size:.68rem;color:var(--muted);flex-shrink:0;font-family:var(--mono);margin-right:2px}
.tree-size{font-size:.7rem;color:var(--muted);flex-shrink:0;font-family:var(--mono)}
.tree-star{font-size:.7rem;flex-shrink:0;margin-right:1px}
.tree-node.folder>.tree-name{font-weight:600}

/* ─── Templates ─── */
.templates-section{margin:0 auto;padding:0 24px 8px;width:100%;display:none;flex-shrink:0}
.templates-section.visible{display:block}
.templates-toggle{display:flex;align-items:center;gap:6px;font-size:.85rem;font-weight:500;cursor:pointer;padding:6px 0;color:var(--text);user-select:none;transition:color var(--transition)}
.templates-toggle:hover{color:var(--accent)}
.templates-toggle .arrow{transition:transform .2s;font-size:.7rem}
.templates-toggle .arrow.open{transform:rotate(90deg)}
.templates-body{display:none;padding:8px 0}
.templates-body.open{display:block}
.templates-grid{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
.tpl-chip{
  padding:7px 14px;border:1.5px solid var(--border);border-radius:20px;
  font-size:.78rem;cursor:pointer;transition:all var(--transition);
  background:var(--surface);display:flex;align-items:center;gap:4px;
}
.tpl-chip:hover{border-color:var(--accent);background:var(--accent-bg);transform:translateY(-1px)}
.tpl-chip.active{border-color:var(--accent);background:var(--accent-bg);color:var(--accent);font-weight:600}
.tpl-chip .tpl-icon{font-size:.85rem}
.custom-tpl-area{
  margin-top:8px;padding:12px;
  border:1px solid var(--border);border-radius:var(--radius);
  background:var(--surface);
}
.custom-tpl-area label{font-size:.8rem;font-weight:500;margin-bottom:4px;display:block}
.custom-tpl-area .hint{font-size:.72rem;color:var(--muted);margin-bottom:6px}
.custom-tpl-input{
  width:100%;padding:10px 12px;
  border:1.5px solid var(--border);border-radius:var(--radius-sm);
  background:var(--bg);font-family:var(--mono);font-size:.78rem;
  resize:vertical;min-height:60px;outline:none;
  transition:border-color var(--transition);
}
.custom-tpl-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-bg)}
.custom-tpl-actions{display:flex;gap:6px;margin-top:6px;align-items:center}
.custom-tpl-list{display:flex;flex-wrap:wrap;gap:4px;margin-top:8px}
.custom-chip{
  padding:5px 12px;border:1.5px solid var(--border);border-radius:16px;
  font-size:.75rem;cursor:pointer;transition:all var(--transition);
  background:var(--surface);display:flex;align-items:center;gap:4px;
}
.custom-chip:hover{border-color:var(--accent);transform:translateY(-1px)}
.custom-chip.active{border-color:var(--accent);background:var(--accent-bg);color:var(--accent)}
.custom-chip .del-btn{font-size:.7rem;color:var(--muted);margin-left:2px;cursor:pointer}
.custom-chip .del-btn:hover{color:var(--danger)}

/* ─── Output ─── */
.output-wrapper{display:flex;flex:1;min-height:0;overflow:hidden;position:relative}
.output-wrapper .output-area{flex:1;min-width:0}
.output-area{
  width:100%;flex:1;min-height:0;padding:14px;border:none;
  background:var(--surface);color:var(--text);
  font-family:var(--mono);font-size:.8rem;line-height:1.6;
  resize:none;outline:none;
}
.line-numbers{
  display:none;width:auto;min-width:40px;padding:14px 8px 14px 14px;
  background:var(--bg);border-right:1px solid var(--border);
  color:var(--muted);font-family:var(--mono);font-size:.8rem;line-height:1.6;
  text-align:right;overflow:hidden;user-select:none;pointer-events:none;white-space:pre;flex-shrink:0;
}
.line-numbers.visible{display:block}
.output-wrapper.line-numbers-active .output-area{padding-left:8px}
.output-stats{
  padding:10px 16px;border-top:1px solid var(--border);
  font-size:.74rem;color:var(--muted);display:flex;gap:16px;
  flex-shrink:0;background:var(--bg);flex-wrap:wrap;
}

/* ─── Modal ─── */
.modal-overlay{position:fixed;inset:0;background:oklch(0 0 0 / 0.25);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);z-index:200;display:none;align-items:center;justify-content:center;padding:20px}
.modal-overlay.visible{display:flex}
.modal{
  background:var(--surface);border:1px solid var(--border);
  border-radius:16px;padding:28px;max-width:520px;width:100%;
  box-shadow:var(--shadow-l);max-height:90vh;overflow-y:auto;
  animation:modalSlideUp 0.3s ease both;
}
@keyframes modalSlideUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.modal h2{font-size:1.1rem;font-weight:500;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.modal label{display:block;font-size:.85rem;font-weight:500;margin-bottom:4px;color:var(--text)}
.modal .hint{font-size:.74rem;color:var(--muted);margin-bottom:12px}
.modal input[type=text],.modal textarea{
  width:100%;padding:10px 12px;
  border:1.5px solid var(--border);border-radius:var(--radius-sm);
  background:var(--bg);font-size:.85rem;outline:none;
  transition:border-color var(--transition),box-shadow var(--transition);
}
.modal input:focus,.modal textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-bg)}
.modal textarea{min-height:80px;font-family:var(--mono);font-size:.77rem;resize:vertical}
.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}
.modal-sm{max-width:400px}
.modal input[type=number]{
  width:100%;padding:10px 12px;
  border:1.5px solid var(--border);border-radius:var(--radius-sm);
  background:var(--bg);font-size:.85rem;outline:none;
  transition:border-color var(--transition),box-shadow var(--transition);
}
.modal input[type=number]:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-bg)}
.budget-presets{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}
.field-group{margin-bottom:16px}

/* ─── Status Bar (floating toast) ─── */
.status-bar{position:fixed;top:16px;left:50%;transform:translateX(-50%);z-index:9999;width:calc(100% - 48px);max-width:600px;pointer-events:none;opacity:0;transform:translateX(-50%) translateY(-20px);transition:opacity 0.3s ease,transform 0.3s ease}
.status-bar.visible{opacity:1;transform:translateX(-50%) translateY(0);pointer-events:auto}
.status-msg{
  padding:12px 16px;border-radius:var(--radius);font-size:.85rem;
  display:flex;align-items:center;gap:8px;position:relative;
  box-shadow:0 4px 24px oklch(0 0 0 / 0.15);
}
.status-msg .status-close{position:absolute;right:10px;top:50%;transform:translateY(-50%);background:none;border:none;cursor:pointer;font-size:1rem;opacity:0.5;transition:opacity 0.15s;color:inherit;padding:2px 6px}
.status-msg .status-close:hover{opacity:1}
.status-info{background:var(--accent-bg);color:var(--accent);border:1px solid oklch(0.65 0.15 264 / 0.2)}
.status-error{background:var(--danger-bg);color:var(--danger);border:1px solid rgba(207,34,46,.2)}
.status-success{background:var(--success-bg);color:var(--success);border:1px solid rgba(26,127,55,.2)}
.spinner{display:inline-block;width:14px;height:14px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .6s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.progress-bar{height:3px;background:var(--bg-dark);border-radius:2px;overflow:hidden;margin-top:8px;display:none}
.progress-bar.visible{display:block}
.progress-fill{height:100%;background:var(--accent);border-radius:2px;transition:width .3s ease;width:0}

/* ─── Footer ─── */
.footer{
  padding:12px 24px;border-top:1px solid var(--border);
  font-size:.72rem;color:var(--muted);
  display:flex;justify-content:space-between;align-items:center;
  flex-wrap:wrap;gap:8px;background:var(--surface);flex-shrink:0;margin-top:8px;
  font-style:italic;
}

/* ─── Empty State ─── */
#localInputBar.welcome-expand{flex:1;display:flex;flex-direction:column;justify-content:center;min-height:0}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:60px 20px;text-align:center;max-width:1200px;margin:0 auto;width:100%;flex:1;min-height:0;
}
.empty-state.hidden{display:none}
.empty-icon{font-size:3rem;margin-bottom:14px;opacity:.5}
.empty-title{font-size:1.15rem;font-weight:500;margin-bottom:8px}
.empty-desc{font-size:.9rem;color:var(--muted);max-width:420px;line-height:1.7}

/* ─── Scrollbar ─── */
::-webkit-scrollbar{width:8px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:oklch(0 0 0 / 0.1);border-radius:4px;border:2px solid transparent;background-clip:padding-box}
::-webkit-scrollbar-thumb:hover{background:oklch(0 0 0 / 0.18)}