:root {
  --bg: #0d1014;
  --panel: #14181f;
  --panel-2: #1a1f28;
  --line: #232936;
  --line-soft: #1c2230;
  --text: #e7ecf2;
  --text-dim: #a3acba;
  --muted: #6b7484;
  --accent: #ffb86b;
  --accent-2: #f78b66;
  --accent-3: #b88dff;
  --danger: #ef6b6b;
  --topbar-h: 56px;
  --sidebar-w: 280px;
  --sans: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --serif: 'Fraunces', Georgia, serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }

body.app {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* Topbar */
.topbar {
  height: var(--topbar-h);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 14px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  flex-shrink: 0;
}

.topbar-left, .topbar-right { display: flex; align-items: center; gap: 10px; }
.topbar-right { justify-content: flex-end; }
.topbar-center { display: flex; gap: 4px; justify-content: center; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.brand-mark {
  width: 18px; height: 18px;
  border-radius: 6px;
  background: conic-gradient(from 210deg, var(--accent), var(--accent-2), var(--accent-3), var(--accent));
}

.divider {
  width: 1px; height: 22px;
  background: var(--line);
  margin: 0 4px;
}

.project-name {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text);
  font: inherit;
  font-weight: 500;
  padding: 6px 10px;
  border-radius: 6px;
  min-width: 180px;
}
.project-name:hover { border-color: var(--line); }
.project-name:focus { outline: none; border-color: var(--accent); background: var(--panel-2); }

.save-status {
  font-size: 0.8rem;
  color: var(--muted);
}
.save-status.is-dirty { color: var(--accent); }

.vp-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-dim);
  width: 32px; height: 32px;
  border-radius: 7px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.vp-btn:hover { color: var(--text); background: var(--panel-2); }
.vp-btn.is-active { background: var(--panel-2); color: var(--accent); border-color: var(--line); }

.icon-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-dim);
  width: 32px; height: 32px;
  border-radius: 7px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.icon-btn:hover { color: var(--text); background: var(--panel-2); }
.icon-btn:disabled { opacity: 0.35; cursor: not-allowed; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 7px;
  font-weight: 600;
  font-size: 0.88rem;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
}
.btn-sm { padding: 6px 12px; font-size: 0.82rem; }
.btn-primary {
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  color: #1b0f06;
}
.btn-primary:hover { filter: brightness(1.05); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}
.btn-ghost:hover { background: var(--panel-2); border-color: #2c3344; }

/* Workspace */
.workspace {
  flex: 1;
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr var(--sidebar-w);
  min-height: 0;
}

.sidebar {
  background: var(--panel);
  display: flex;
  flex-direction: column;
  min-height: 0;
  border-right: 1px solid var(--line);
}
.sidebar-right { border-right: none; border-left: 1px solid var(--line); }

.sidebar-tabs {
  display: flex;
  border-bottom: 1px solid var(--line);
}
.sidebar-tabs .tab {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-dim);
  padding: 12px 14px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-bottom: 2px solid transparent;
}
.sidebar-tabs .tab.is-active { color: var(--text); border-bottom-color: var(--accent); }
.sidebar-tabs .tab:hover:not(.is-active) { color: var(--text); }

.pane {
  display: none;
  padding: 16px;
  overflow-y: auto;
  flex: 1;
}
.pane.is-active { display: block; }
.pane-hint, .pane-empty { color: var(--muted); font-size: 0.85rem; margin: 0 0 12px; }
.pane-empty { text-align: center; padding: 30px 8px; }

/* Block library */
.block-list { display: grid; gap: 8px; }
.block-item {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  cursor: grab;
  user-select: none;
  transition: border-color 0.15s ease, background 0.15s ease;
  display: flex;
  align-items: center;
  gap: 10px;
}
.block-item:hover { border-color: var(--accent); background: #1d2330; }
.block-item:active { cursor: grabbing; }
.block-item-icon {
  width: 28px; height: 28px;
  border-radius: 6px;
  background: linear-gradient(135deg, rgba(255,184,107,0.2), rgba(184,141,255,0.2));
  border: 1px solid var(--line);
  display: grid;
  gap: 2px;
  padding: 5px;
  flex-shrink: 0;
}
.block-item-icon span { background: var(--accent); border-radius: 1px; height: 3px; opacity: 0.9; }
.block-item-name { font-weight: 600; font-size: 0.88rem; }
.block-item-desc { font-size: 0.75rem; color: var(--muted); margin-top: 2px; }

/* Pages */
.page-list { display: grid; gap: 6px; margin-bottom: 12px; }
.page-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 7px;
  cursor: pointer;
}
.page-row.is-active { border-color: var(--accent); }
.page-row input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text);
  font: inherit;
  font-size: 0.88rem;
}
.page-row input:focus { outline: none; }
.page-row .page-del {
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 1rem;
  padding: 0 4px;
}
.page-row .page-del:hover { color: var(--danger); }

/* Canvas */
.canvas-wrap {
  background:
    radial-gradient(800px 400px at 50% 0%, rgba(184,141,255,0.06), transparent 60%),
    var(--bg);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 20px;
  overflow: auto;
  min-height: 0;
  position: relative;
}

.canvas {
  background: white;
  border-radius: 10px;
  box-shadow: 0 30px 60px rgba(0,0,0,0.45);
  width: 100%;
  max-width: 1200px;
  min-height: calc(100vh - var(--topbar-h) - 40px);
  position: relative;
  overflow: hidden;
  transition: max-width 0.2s ease;
}
.canvas[data-vp="tablet"] { max-width: 820px; }
.canvas[data-vp="mobile"] { max-width: 420px; }

.canvas iframe {
  width: 100%;
  height: 100%;
  min-height: calc(100vh - var(--topbar-h) - 40px);
  border: none;
  display: block;
  background: white;
}

.empty-state {
  position: absolute;
  inset: 0;
  display: grid;
  align-content: center;
  justify-items: center;
  text-align: center;
  padding: 30px;
  pointer-events: none;
  color: #1c1f25;
}
.empty-state.hidden { display: none; }
.empty-state h2 { font-family: var(--serif); margin: 0 0 12px; pointer-events: auto; max-width: 18ch; font-size: clamp(1.6rem, 3vw, 2.2rem); }
.empty-state p { color: #5a6270; margin: 0 0 24px; pointer-events: auto; max-width: 50ch; }
.empty-state .empty-eyebrow { text-transform: uppercase; letter-spacing: 0.18em; font-size: 0.72rem; font-weight: 700; color: #d97a3a; margin-bottom: 16px; }
.empty-state .empty-hint { color: #888; font-size: 0.85rem; margin-top: 22px; margin-bottom: 0; }
.empty-templates { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; pointer-events: auto; }
.empty-templates button {
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid #d8dde6;
  background: white;
  color: #1c1f25;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
}
.empty-templates button:hover { border-color: var(--accent); color: var(--accent-2); }

/* Inspector */
.field {
  display: grid;
  gap: 6px;
  margin-bottom: 16px;
}
.field label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  display: flex;
  justify-content: space-between;
}
.field input[type="text"],
.field input[type="url"],
.field input[type="email"],
.field textarea,
.field select {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  font: inherit;
  font-size: 0.9rem;
  padding: 8px 10px;
  border-radius: 7px;
  width: 100%;
  resize: vertical;
}
.field textarea { min-height: 70px; font-family: inherit; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--accent);
}
.field input[type="color"] {
  width: 100%;
  height: 36px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 4px;
  cursor: pointer;
}
.field input[type="range"] {
  width: 100%;
}

.list-editor { display: grid; gap: 8px; }
.list-editor .item {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 10px;
  display: grid;
  gap: 6px;
  position: relative;
}
.list-editor .item input,
.list-editor .item textarea {
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 5px;
  padding: 6px 8px;
  font: inherit;
  font-size: 0.85rem;
}
.list-editor .item .row-del {
  position: absolute;
  top: 6px; right: 6px;
  background: transparent; border: none; color: var(--muted); cursor: pointer;
}
.list-editor .item .row-del:hover { color: var(--danger); }
.list-editor .add {
  border: 1px dashed var(--line);
  background: transparent;
  color: var(--text-dim);
  padding: 8px;
  border-radius: 7px;
  cursor: pointer;
  font: inherit;
  font-size: 0.85rem;
}
.list-editor .add:hover { color: var(--accent); border-color: var(--accent); }

.inspect-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}
.inspect-actions button {
  flex: 1;
  padding: 8px;
  border-radius: 7px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  font: inherit;
  font-size: 0.82rem;
  cursor: pointer;
}
.inspect-actions button:hover { border-color: var(--accent); }
.inspect-actions .danger:hover { border-color: var(--danger); color: var(--danger); }

.inspect-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: -16px -16px 14px;
  padding: 12px 16px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--line);
}
.inspect-header strong { font-size: 0.95rem; }
.inspect-header small { color: var(--muted); display: block; font-size: 0.75rem; }

/* Theme palettes */
.palettes {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
  gap: 8px;
}
.palette {
  height: 38px;
  border-radius: 7px;
  border: 2px solid transparent;
  cursor: pointer;
  display: flex;
  overflow: hidden;
}
.palette.is-active { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(255,184,107,0.2); }
.palette span { flex: 1; }

.seg {
  display: flex;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 2px;
}
.seg button {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-dim);
  padding: 6px;
  cursor: pointer;
  font: inherit;
  font-size: 0.82rem;
  border-radius: 5px;
}
.seg button.is-active { background: var(--bg); color: var(--text); }

/* Toast */
.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.88rem;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 100;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* Drag overlay state */
.canvas.is-dragover { outline: 2px dashed var(--accent); outline-offset: -8px; }

@media (max-width: 1100px) {
  .workspace { grid-template-columns: 240px 1fr 280px; }
  :root { --sidebar-w: 240px; }
}
@media (max-width: 900px) {
  .workspace { grid-template-columns: 1fr; }
  .sidebar-left, .sidebar-right { display: none; }
}