styles.css

/* ═══════════════════════════════════════════════════════════════
   NoteForge — Styles
   OneNote-inspired 3-panel layout
   ═══════════════════════════════════════════════════════════════ */

/* ── Local Fonts (no external network requests) ────────────── */
@font-face{font-family:'DM Sans';font-style:normal;font-weight:400;font-display:swap;src:url(lib/dm-sans-400.woff2) format('woff2')}
@font-face{font-family:'DM Sans';font-style:italic;font-weight:400;font-display:swap;src:url(lib/dm-sans-400i.woff2) format('woff2')}
@font-face{font-family:'DM Sans';font-style:normal;font-weight:500;font-display:swap;src:url(lib/dm-sans-500.woff2) format('woff2')}
@font-face{font-family:'DM Sans';font-style:normal;font-weight:600;font-display:swap;src:url(lib/dm-sans-600.woff2) format('woff2')}
@font-face{font-family:'DM Sans';font-style:normal;font-weight:700;font-display:swap;src:url(lib/dm-sans-700.woff2) format('woff2')}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:400;font-display:swap;src:url(lib/jb-mono-400.woff2) format('woff2')}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:500;font-display:swap;src:url(lib/jb-mono-500.woff2) format('woff2')}

/* ── Reset & Base ──────────────────────────────────────────── */
*{box-sizing:border-box;margin:0;padding:0}
html,body,#root{height:100%;overflow:hidden}
body{font-family:'DM Sans',-apple-system,'Segoe UI',sans-serif}
input,select,button{font-family:inherit}

/* ── Theme Variables (set via JS) ──────────────────────────── */
/* Dark and light vars are applied inline on the root container */

/* ── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar{width:5px;height:5px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--scrollbar);border-radius:99px}
::-webkit-scrollbar-thumb:hover{background:var(--scrollbar-hover)}

/* ── Layout ────────────────────────────────────────────────── */
.nf-root{
  height:100vh;display:flex;flex-direction:column;
  background:var(--bg);color:var(--text);font-size:14px;overflow:hidden;
}
.nf-body{display:flex;flex:1;overflow:hidden}

/* ── Notebook Panel (left) ─────────────────────────────────── */
.nf-nav{
  width:220px;min-width:220px;background:var(--nav-bg);
  border-right:1px solid var(--border);
  display:flex;flex-direction:column;overflow:hidden;
  transition:width .15s,min-width .15s;
}
.nf-nav.collapsed{width:0;min-width:0;border-right:none;overflow:hidden}
.nf-nav-scroll{flex:1;overflow-y:auto;padding:6px}
.nf-nav-footer{padding:6px;border-top:1px solid var(--border)}

/* Notebook item */
.nf-nb{
  padding:7px 10px;border-radius:7px;cursor:pointer;
  display:flex;align-items:center;gap:8px;
  transition:background .1s;user-select:none;margin-bottom:1px;
}
.nf-nb:hover{background:var(--hover)}
.nf-nb.active{background:var(--accent-bg);color:var(--accent)}
.nf-nb-color{width:8px;height:8px;border-radius:3px;flex-shrink:0}
.nf-nb-name{flex:1;font-size:13px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.nf-nb-chevron{transition:transform .12s;flex-shrink:0;opacity:.5}
.nf-nb-chevron.open{transform:rotate(90deg)}

/* Section item */
.nf-sec{
  padding:5px 8px 5px 12px;border-radius:6px;cursor:pointer;
  display:flex;align-items:center;gap:7px;margin-left:10px;
  transition:background .1s;user-select:none;
}
.nf-sec:hover{background:var(--hover)}
.nf-sec.active{background:var(--accent-bg);color:var(--accent)}
.nf-sec-bar{width:3px;height:16px;border-radius:2px;flex-shrink:0}
.nf-sec-name{flex:1;font-size:12.5px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* Add buttons in nav */
.nf-add-btn{
  padding:5px 10px;border-radius:6px;cursor:pointer;
  display:flex;align-items:center;gap:6px;
  font-size:12px;color:var(--text-muted);
  transition:background .1s,color .1s;user-select:none;
}
.nf-add-btn:hover{background:var(--hover);color:var(--text)}

/* ── Page List Panel (middle) ──────────────────────────────── */
.nf-pages{
  width:240px;min-width:240px;background:var(--surface);
  border-right:1px solid var(--border);
  display:flex;flex-direction:column;overflow:hidden;
}
.nf-pages-header{
  padding:10px 12px 8px;border-bottom:1px solid var(--border);flex-shrink:0;
}
.nf-pages-title{font-size:14px;font-weight:700;margin-bottom:6px;display:flex;align-items:center;gap:6px}
.nf-pages-search{
  width:100%;height:28px;padding:0 8px 0 28px;
  border:1px solid var(--border);border-radius:7px;
  background:var(--bg);color:var(--text);font-size:12px;outline:none;
}
.nf-pages-search:focus{border-color:var(--accent)}
.nf-pages-scroll{flex:1;overflow-y:auto;padding:4px 6px}
.nf-pages-footer{padding:6px;border-top:1px solid var(--border)}

/* Page item */
.nf-pg{
  padding:9px 10px;border-radius:7px;cursor:pointer;
  transition:background .1s;user-select:none;margin-bottom:2px;
}
.nf-pg:hover{background:var(--hover)}
.nf-pg.active{background:var(--accent-bg)}
.nf-pg-title{font-size:13px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.nf-pg.active .nf-pg-title{color:var(--accent)}
.nf-pg-preview{font-size:11px;color:var(--text-muted);margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.nf-pg-meta{font-size:10px;color:var(--text-muted);margin-top:3px;opacity:.7}
.nf-pg-pin{font-size:9px;margin-right:4px}

/* ── Editor Panel (right) ──────────────────────────────────── */
.nf-editor-wrap{flex:1;display:flex;flex-direction:column;overflow:hidden}

/* Toolbar */
.nf-toolbar{
  display:flex;align-items:center;padding:3px 10px;gap:1px;
  flex-wrap:wrap;background:var(--surface);
  border-bottom:1px solid var(--border);flex-shrink:0;
}

/* Toolbar button */
.tb{
  display:flex;align-items:center;justify-content:center;
  width:28px;height:26px;
  border:none;border-radius:5px;background:transparent;
  color:var(--text-secondary);cursor:pointer;
  transition:all .1s;flex-shrink:0;
}
.tb:hover:not(:disabled){background:var(--hover);color:var(--text)}
.tb:disabled{opacity:.3;cursor:not-allowed}
.tb.active{background:var(--accent-bg);color:var(--accent)}
.tb-sep{width:1px;height:18px;background:var(--border);margin:0 3px;flex-shrink:0;opacity:.5}

/* Header bar (branding + global actions) */
.nf-header{
  display:flex;align-items:center;padding:4px 10px;gap:6px;
  background:var(--surface);border-bottom:1px solid var(--border);flex-shrink:0;
}
.nf-logo{font-size:15px;font-weight:700;letter-spacing:-.4px;user-select:none}
.nf-logo-accent{color:var(--accent)}

/* Page title area */
.nf-title-area{padding:16px 28px 0;flex-shrink:0}
.nf-breadcrumb{font-size:11px;color:var(--text-muted);margin-bottom:4px;display:flex;align-items:center;gap:4px}
.nf-breadcrumb-dot{width:6px;height:6px;border-radius:2px;flex-shrink:0}
.nf-title-input{
  width:100%;font-size:22px;font-weight:700;border:none;background:transparent;
  color:var(--text);outline:none;padding:2px 0;font-family:inherit;letter-spacing:-.3px;
}
.nf-timestamps{font-size:10.5px;color:var(--text-muted);margin-top:2px;display:flex;gap:12px}

/* Editor content area */
.nf-editor{
  flex:1;padding:14px 28px 48px;overflow-y:auto;
  background:var(--editor-bg);line-height:1.7;min-height:200px;
}
.nf-editor:focus{outline:none}

/* Editor typography */
.nf-editor h1{font-size:1.85em;font-weight:700;margin:.55em 0 .25em;line-height:1.25;letter-spacing:-.02em}
.nf-editor h2{font-size:1.4em;font-weight:600;margin:.45em 0 .2em;line-height:1.3;letter-spacing:-.01em}
.nf-editor h3{font-size:1.12em;font-weight:600;margin:.35em 0 .15em}
.nf-editor h4{font-size:1em;font-weight:600;margin:.3em 0 .15em}
.nf-editor p{margin:.25em 0;line-height:1.7}
.nf-editor ul,.nf-editor ol{margin:.3em 0;padding-left:1.6em}
.nf-editor li{margin:.12em 0}
.nf-editor blockquote{border-left:3px solid var(--accent);padding:2px 0 2px 16px;margin:10px 0;opacity:.88;font-style:italic}
.nf-editor pre{background:var(--code-bg);padding:16px;border-radius:10px;font-family:'JetBrains Mono','Cascadia Code',monospace;font-size:13px;overflow-x:auto;margin:10px 0;tab-size:4;white-space:pre;border:1px solid var(--border)}
.nf-editor code{background:var(--code-bg);padding:2px 7px;border-radius:5px;font-family:'JetBrains Mono','Cascadia Code',monospace;font-size:13px}
.nf-editor table{border-collapse:collapse;width:100%;margin:10px 0}
.nf-editor td,.nf-editor th{border:1px solid var(--border);padding:8px 10px;min-width:60px}
.nf-editor hr{border:none;border-top:1px solid var(--border);margin:20px 0}
.nf-editor img{max-width:100%;border-radius:10px;margin:6px 0}
.nf-editor a{color:var(--accent);text-decoration:underline;text-underline-offset:2px}

/* Checklist */
.nf-check{display:flex;align-items:flex-start;gap:8px;padding:3px 0}
.nf-check input[type="checkbox"]{width:18px;height:18px;accent-color:var(--accent);cursor:pointer;margin-top:2px;flex-shrink:0}
.nf-check label{cursor:pointer;flex:1}

/* ── Status Bar ────────────────────────────────────────────── */
.nf-status{
  display:flex;align-items:center;padding:3px 16px;gap:14px;
  background:var(--surface);border-top:1px solid var(--border);
  font-size:10.5px;color:var(--text-muted);flex-shrink:0;user-select:none;
}
.nf-status-dot{width:5px;height:5px;border-radius:99px;display:inline-block}

/* ── Empty States ──────────────────────────────────────────── */
.nf-empty{
  flex:1;display:flex;align-items:center;justify-content:center;
  flex-direction:column;gap:8px;color:var(--text-muted);
}

/* ── Find & Replace ────────────────────────────────────────── */
.nf-find-bar{
  display:flex;align-items:center;padding:4px 12px;gap:5px;
  border-bottom:1px solid var(--border);background:var(--surface-alt);flex-shrink:0;
}
.nf-find-input{
  height:26px;padding:0 8px;border:1px solid var(--border);border-radius:6px;
  background:var(--bg);color:var(--text);font-size:12px;outline:none;
}
.nf-find-input:focus{border-color:var(--accent)}
.nf-find-btn{
  height:26px;padding:0 10px;border-radius:6px;font-size:11px;cursor:pointer;
}

/* ── Dropdowns / Selects ───────────────────────────────────── */
.nf-select{
  height:26px;padding:0 6px;border:1px solid var(--border);border-radius:6px;
  background:var(--surface);color:var(--text);font-size:12px;cursor:pointer;outline:none;
}

/* ── Color Picker Popup ────────────────────────────────────── */
.nf-cpick-popup{
  position:absolute;top:30px;left:-20px;z-index:100;
  background:var(--surface);border:1px solid var(--border);border-radius:10px;
  padding:8px;display:grid;grid-template-columns:repeat(5,1fr);gap:3px;
  box-shadow:0 8px 28px var(--shadow);
}
.nf-cpick-swatch{
  width:22px;height:22px;border-radius:5px;cursor:pointer;transition:transform .1s;
}
.nf-cpick-swatch:hover{transform:scale(1.15)}

/* ── Context Menu ──────────────────────────────────────────── */
.nf-ctx{
  position:fixed;z-index:1000;background:var(--surface);
  border:1px solid var(--border);border-radius:10px;padding:4px;
  min-width:200px;box-shadow:0 10px 30px var(--shadow);
}
.nf-ctx-item{
  padding:6px 10px;border-radius:6px;cursor:pointer;
  display:flex;align-items:center;gap:7px;font-size:12px;
  transition:background .08s;user-select:none;
}
.nf-ctx-item:hover{background:var(--hover)}
.nf-ctx-item.danger{color:var(--danger)}
.nf-ctx-item.disabled{opacity:.35;pointer-events:none}
.nf-ctx-sep{height:1px;background:var(--border);margin:3px 6px}

/* ── Rename Input ──────────────────────────────────────────── */
.nf-rename{
  flex:1;height:20px;padding:0 4px;border:1px solid var(--accent);border-radius:4px;
  background:var(--bg);color:var(--text);font-size:12px;outline:none;min-width:0;
}

/* ── Trash View ────────────────────────────────────────────── */
.nf-trash-item{
  display:flex;align-items:center;padding:10px 14px;
  border:1px solid var(--border);border-radius:10px;margin-bottom:6px;
  background:var(--surface);
}
.nf-trash-btn{
  padding:4px 12px;border-radius:7px;font-size:12px;cursor:pointer;
}

/* ── Animations ────────────────────────────────────────────── */
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}
.fade-in{animation:fadeIn .12s ease}

/* ── Global Search Dropdown ────────────────────────────────── */
.nf-gsearch-dropdown{
  position:absolute;top:34px;left:0;right:0;z-index:200;
  background:var(--surface);border:1px solid var(--border);border-radius:10px;
  max-height:320px;overflow-y:auto;box-shadow:0 12px 40px var(--shadow);
}
.nf-gsearch-item{
  padding:8px 12px;cursor:pointer;border-bottom:1px solid var(--border);transition:background .08s;
}
.nf-gsearch-item:hover{background:var(--hover)}
.nf-gsearch-item:last-child{border-bottom:none}

/* ── Password / Lock Overlay ───────────────────────────────── */
.nf-overlay{
  position:fixed;inset:0;z-index:2000;
  background:var(--bg);
  display:flex;align-items:center;justify-content:center;
  flex-direction:column;gap:16px;
}
.nf-overlay-card{
  background:var(--surface);border:1px solid var(--border);border-radius:16px;
  padding:32px 36px;max-width:380px;width:100%;box-shadow:0 20px 60px var(--shadow);
  text-align:center;
}
.nf-overlay-title{font-size:20px;font-weight:700;margin-bottom:4px}
.nf-overlay-sub{font-size:13px;color:var(--text-muted);margin-bottom:20px}
.nf-overlay-input{
  width:100%;height:38px;padding:0 14px;border:1px solid var(--border);border-radius:8px;
  background:var(--bg);color:var(--text);font-size:14px;outline:none;margin-bottom:12px;
}
.nf-overlay-input:focus{border-color:var(--accent)}
.nf-overlay-btn{
  width:100%;height:38px;border:none;border-radius:8px;
  font-size:14px;font-weight:600;cursor:pointer;transition:opacity .1s;
}
.nf-overlay-btn:hover{opacity:.85}
.nf-overlay-btn.primary{background:var(--accent);color:#fff}
.nf-overlay-btn.secondary{background:var(--surface-alt);color:var(--text);border:1px solid var(--border);margin-top:8px}
.nf-overlay-btn.danger{background:var(--danger);color:#fff;margin-top:8px}
.nf-overlay-error{color:var(--danger);font-size:12px;margin-bottom:8px}
.nf-overlay-hint{font-size:11px;color:var(--text-muted);margin-top:12px}

/* Lock badge on notebooks */
.nf-lock-badge{font-size:11px;flex-shrink:0;opacity:.6}

/* Encryption indicator in status bar */
.nf-enc-badge{
  display:flex;align-items:center;gap:3px;
  color:var(--success);font-size:10.5px;
}

/* ── Password Modal ────────────────────────────────────────── */
.nf-modal-overlay{
  position:fixed;inset:0;z-index:2000;
  background:rgba(0,0,0,.55);backdrop-filter:blur(4px);
  display:flex;align-items:center;justify-content:center;
}
.nf-modal{
  background:var(--surface);border:1px solid var(--border);border-radius:14px;
  padding:28px;width:380px;max-width:90vw;box-shadow:0 20px 60px rgba(0,0,0,.4);
}
.nf-modal h3{font-size:16px;font-weight:700;margin-bottom:4px}
.nf-modal p{font-size:12.5px;color:var(--text-muted);margin-bottom:16px;line-height:1.5}
.nf-modal-input{
  width:100%;height:36px;padding:0 12px;margin-bottom:10px;
  border:1px solid var(--border);border-radius:8px;
  background:var(--bg);color:var(--text);font-size:13px;outline:none;
  font-family:inherit;
}
.nf-modal-input:focus{border-color:var(--accent)}
.nf-modal-input.error{border-color:var(--danger)}
.nf-modal-error{font-size:11.5px;color:var(--danger);margin:-6px 0 10px;min-height:16px}
.nf-modal-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:6px}
.nf-modal-btn{
  padding:8px 18px;border-radius:8px;font-size:13px;font-weight:600;
  cursor:pointer;border:1px solid var(--border);transition:all .1s;
}
.nf-modal-btn.primary{
  background:var(--accent);color:#fff;border-color:var(--accent);
}
.nf-modal-btn.primary:hover{opacity:.9}
.nf-modal-btn.secondary{background:transparent;color:var(--text)}
.nf-modal-btn.secondary:hover{background:var(--hover)}
.nf-modal-btn.danger{background:transparent;color:var(--danger);border-color:var(--danger)}
.nf-modal-btn.danger:hover{background:rgba(248,113,113,.1)}

/* Lock icon in notebooks */
.nf-lock-badge{
  font-size:11px;flex-shrink:0;opacity:.6;display:flex;align-items:center;
}

/* ── Encrypted indicator in header ─────────────────────────── */
.nf-encrypted-badge{
  display:flex;align-items:center;gap:4px;
  font-size:11px;color:var(--success);opacity:.8;user-select:none;
}