/* ===========================================================
   Floorplan Studio — visual language
   A drafting table, not a generic SaaS dashboard:
   warm vellum paper, blueprint ink, graph-paper grid, and a
   safety-orange accent for the one action that matters (draw / apply).
   =========================================================== */

:root {
  --paper: #f5f1e8;
  --paper-raised: #ffffff;
  --ink: #1d2b3a;
  --ink-soft: #4a5a68;
  --blueprint: #2f5a7c;
  --blueprint-pale: #dbe6ee;
  --grid-line: #d8d0bd;
  --accent: #e85d2f;
  --accent-dark: #c44a20;
  --success: #2f6f4f;
  --danger: #b0392c;
  --border: #c9c0aa;

  --font-display: 'Space Mono', ui-monospace, monospace;
  --font-body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-data: 'IBM Plex Mono', ui-monospace, monospace;
}

@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15px;
}

a { color: var(--blueprint); }

.eyebrow {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.12em;
  /*text-transform: uppercase;*/
  color: var(--ink-soft);
  margin: 0 0 4px 0;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  margin: 0 0 8px 0;
  color: var(--ink);
}

/* ---------- Nav ---------- */
.topnav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  background: var(--ink);
  color: var(--paper);
  border-bottom: 3px solid var(--accent);
}
.topnav .brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--paper);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand-mark { color: var(--accent); font-size: 20px; }
.topnav-right a {
  color: var(--blueprint-pale);
  text-decoration: none;
  margin-left: 20px;
  font-size: 14px;
}
.topnav-right a:hover { color: #fff; }

/* ---------- Buttons ---------- */
.btn {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  padding: 9px 16px;
  border-radius: 3px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform 0.05s ease, background 0.15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--ink); }
.btn-ghost:hover { background: var(--blueprint-pale); }

/* ---------- Auth pages ---------- */
.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    var(--paper);
  background-size: 28px 28px, 28px 28px, auto;
}
.auth-card {
  background: var(--paper-raised);
  border: 1.5px solid var(--border);
  border-radius: 6px;
  padding: 36px;
  width: 360px;
  box-shadow: 4px 4px 0 var(--border);
}
.auth-card .brand {
  font-family: var(--font-display);
  font-weight: 700;
  margin-bottom: 18px;
  display: flex;
  gap: 8px;
  align-items: center;
}
.stack label {
  display: block;
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 14px;
  font-weight: 500;
}
.stack input {
  display: block;
  width: 100%;
  margin-top: 5px;
  padding: 9px 10px;
  border: 1.5px solid var(--border);
  border-radius: 3px;
  font-family: var(--font-body);
  font-size: 14px;
  background: var(--paper);
}
.stack input:focus, textarea:focus { outline: 2px solid var(--blueprint); outline-offset: 1px; }
.auth-switch { font-size: 13px; color: var(--ink-soft); margin-top: 10px; }
.alert { padding: 10px 12px; border-radius: 3px; font-size: 13px; margin-bottom: 14px; }
.alert-error { background: #fbe4df; color: var(--danger); border: 1px solid #e6b3a5; }

/* ---------- Dashboard ---------- */
.page { max-width: 1100px; margin: 0 auto; padding: 36px 28px 80px; }
.page-header { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 28px; }
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 18px;
}
.project-card {
  position: relative;
  background: var(--paper-raised);
  border: 1.5px solid var(--border);
  border-radius: 5px;
  overflow: hidden;
  transition: box-shadow 0.15s ease, transform 0.1s ease;
}
.project-card:hover { box-shadow: 3px 3px 0 var(--border); transform: translate(-1px, -1px); }
.project-card-link { display: block; text-decoration: none; color: var(--ink); }
.project-card-delete {
  position: absolute; top: 8px; right: 8px;
  width: 26px; height: 26px; border-radius: 50%;
  border: 1.5px solid var(--border); background: var(--paper-raised);
  color: var(--ink-soft); font-size: 13px; line-height: 1; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  opacity: 0.45; transition: opacity 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.project-card:hover .project-card-delete, .project-card-delete:focus { opacity: 1; }
.project-card-delete:hover { background: var(--danger); color: #fff; border-color: var(--danger); }
.project-card-thumb {
  height: 90px;
  background: var(--blueprint-pale);
  display: flex; align-items: center; justify-content: center;
  font-size: 34px; color: var(--blueprint);
  border-bottom: 1.5px solid var(--border);
  overflow: hidden;
}
.project-card-thumb img {
  width: 100%; height: 100%; object-fit: cover;
}
.project-card-body { padding: 12px 14px; }
.project-card-body h3 { font-size: 15px; margin-bottom: 4px; }
.project-card-body p { font-size: 12px; color: var(--ink-soft); margin: 0; font-family: var(--font-data); }

.empty-state {
  text-align: center;
  padding: 60px 20px;
  border: 2px dashed var(--border);
  border-radius: 6px;
  color: var(--ink-soft);
}
.empty-state p { max-width: 420px; margin: 0 auto 18px; }

/* ---------- Modal ---------- */
.modal {
  position: fixed; inset: 0; background: rgba(29,43,58,0.55);
  display: flex; align-items: center; justify-content: center; z-index: 100;
}
.modal[hidden] { display: none; }
.modal-card {
  background: var(--paper-raised); border-radius: 6px; padding: 28px;
  width: 420px; max-width: 92vw; border: 1.5px solid var(--border);
}
.modal-card label { display: block; font-size: 13px; color: var(--ink-soft); margin: 14px 0 6px; font-weight: 500; }
.modal-card input[type=text], .modal-card input[type=file] {
  width: 100%; padding: 9px 10px; border: 1.5px solid var(--border); border-radius: 3px; font-size: 14px;
}
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 22px; }
.upload-preview { margin-top: 12px; text-align: center; }
.upload-preview img { max-width: 100%; max-height: 160px; border: 1px solid var(--border); border-radius: 3px; }
.form-note { font-size: 12.5px; color: var(--ink-soft); margin-top: 10px; min-height: 16px; }
.form-note.error { color: var(--danger); }

/* ---------- Editor layout ---------- */
.editor-body { height: 100vh; display: flex; flex-direction: column; overflow: hidden; }
.editor-layout { display: flex; flex: 1; min-height: 0; }

.sidebar {
  width: 260px;
  flex-shrink: 0;
  background: var(--paper-raised);
  border-right: 1.5px solid var(--border);
  padding: 20px 18px;
  overflow-y: auto;
}
.sidebar-header { margin-bottom: 22px; }
.sidebar-section { margin-bottom: 26px; }

.version-list { display: flex; flex-direction: column; gap: 6px; }
.version-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 10px; border-radius: 3px; border: 1px solid transparent;
  cursor: pointer; font-size: 13px; font-family: var(--font-data);
}
.version-item:hover { background: var(--blueprint-pale); }
.version-item.active { border-color: var(--blueprint); background: var(--blueprint-pale); font-weight: 600; }
.version-badge {
  font-size: 10px; padding: 2px 6px; border-radius: 10px; text-transform: uppercase;
  background: var(--border); color: var(--ink);
}
.version-badge.ai { background: var(--accent); color: #fff; }
.version-badge.edited { background: var(--success); color: #fff; }
.version-badge.failed { background: var(--danger); color: #fff; }

.source-thumb { border: 1px solid var(--border); border-radius: 4px; overflow: hidden; }
.source-thumb img { width: 100%; display: block; }
.source-thumb:empty::after { content: 'No source image'; display: block; padding: 20px 10px; font-size: 12px; color: var(--ink-soft); text-align: center; }
.json-view { width: 100%; height: 260px; margin-top: 8px; font-family: var(--font-data); font-size: 11px; color: var(--ink); background: var(--paper-raised); border: 1px solid var(--border); border-radius: 4px; padding: 8px; resize: vertical; }
.notes-list { max-height: 320px; overflow-y: auto; }
.notes-list p { font-size: 13.5px; line-height: 1.5; margin: 0 0 12px; padding-bottom: 12px; border-bottom: 1px solid var(--border); }
.notes-list p:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }

.canvas-area { flex: 1; display: flex; flex-direction: column; min-width: 0; }

.toolbar {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  padding: 10px 20px; background: var(--paper-raised); border-bottom: 1.5px solid var(--border);
}
.tool-group { display: flex; gap: 6px; align-items: center; }
.tool-group[hidden] { display: none; }
.tool-group-right { margin-left: auto; }
.tool-btn {
  background: transparent; border: 1.5px solid var(--border); border-radius: 3px;
  padding: 7px 12px; font-size: 13px; cursor: pointer; font-family: var(--font-body);
}
.tool-btn.active { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.color-swatch {
  --swatch: #000; width: 22px; height: 22px; border-radius: 50%; background: var(--swatch);
  display: inline-block; border: 2px solid transparent; cursor: pointer; position: relative;
}
.color-swatch input { opacity: 0; position: absolute; }
.color-swatch:has(input:checked) { border-color: var(--ink); box-shadow: 0 0 0 2px var(--paper-raised) inset; }

.stage-wrap {
  flex: 1; position: relative; overflow: auto;
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    var(--paper);
  background-size: 24px 24px, 24px 24px, auto;
  display: flex; align-items: safe center; justify-content: safe center;
}
.stage {
  position: relative;
  width: min(90vw, 1000px);
  aspect-ratio: 1000 / 700;
  background: var(--paper-raised);
  border: 1.5px solid var(--border);
  box-shadow: 5px 5px 0 var(--border);
}
#floorplan-svg { position: absolute; inset: 0; width: 100%; height: 100%; }
#annotation-canvas { position: absolute; inset: 0; width: 100%; height: 100%; cursor: crosshair; }
#annotation-canvas.tool-pan { cursor: grab; }
#annotation-canvas.tool-pan:active { cursor: grabbing; }

.hint { padding: 10px 20px; margin: 0; font-size: 12.5px; color: var(--ink-soft); background: var(--paper-raised); border-top: 1px solid var(--border); }

.loading-overlay {
  position: absolute; inset: 0; z-index: 5;
  background: rgba(245,241,232,0.92);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px;
  font-family: var(--font-data); font-size: 13px; color: var(--ink-soft); text-align: center; padding: 20px;
  overflow-y: auto;
}
.loading-overlay p { white-space: pre-wrap; text-align: left; max-width: 90%; max-height: 80%; overflow-y: auto; }
.loading-overlay[hidden] { display: none; }
.spinner {
  width: 32px; height: 32px; border-radius: 50%;
  border: 3px solid var(--blueprint-pale); border-top-color: var(--accent);
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.note-popup {
  position: absolute; z-index: 20; background: var(--paper-raised);
  border: 1.5px solid var(--ink); border-radius: 4px; padding: 10px; width: 220px;
  box-shadow: 3px 3px 0 var(--border);
}
.note-popup textarea {
  width: 100%; font-family: var(--font-body); font-size: 13px; border: 1px solid var(--border);
  border-radius: 3px; padding: 6px; resize: vertical;
}
.note-popup-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 8px; }
#text-label-popup .btn { padding: 4px 8px; }

/* ---------- Floorplan SVG rendering ---------- */
.fp-wall { stroke: var(--ink); }
.fp-room { fill: var(--blueprint-pale); fill-opacity: 0.45; stroke: none; }
.fp-room-label { font-family: var(--font-data); font-size: 14px; fill: var(--ink); text-anchor: middle; }
.fp-text-label { font-family: var(--font-data); font-size: 14px; fill: var(--ink); text-anchor: start; }
.fp-door-arc { fill: none; stroke: var(--blueprint); stroke-width: 1.4; stroke-dasharray: 3 2; }
.fp-window { stroke: var(--blueprint); stroke-width: 3; }
.fp-stairs { fill: none; stroke: var(--ink); stroke-width: 1.5; }
.fp-stairs-band { fill: var(--blueprint-pale); fill-opacity: 0.4; stroke: none; }
.fp-stairs-tread { stroke: var(--ink); stroke-width: 1; }
.fp-stairs-arrow { stroke: var(--ink); stroke-width: 1.8; }
.fp-stairs-arrow-head { fill: var(--ink); }

/* ---------- Responsive ---------- */
@media (max-width: 800px) {
  .sidebar { display: none; }
}