/* Harvest Lane — Grid Layout Editor
   Warm paper background, soft watercolor-ish accents, readable labels.
   Zero dependencies — no webfonts, no external assets except optional
   sprite PNGs the page tries to load from ./assets/. */

:root {
  --paper: #f6ecd8;
  --paper-deep: #efe1c4;
  --ink: #4a3d2c;
  --ink-soft: #7a6a52;
  --line: #ddc9a0;
  --card: #fffaf0;
  --card-border: #e5d3ac;
  --accent: #c2703d;
  --accent-soft: #f0d9b8;
  --danger: #c94f4f;
  --danger-soft: #f6d9d9;
  --shadow: 0 2px 6px rgba(90, 65, 30, 0.12), 0 1px 2px rgba(90, 65, 30, 0.08);

  --zone-field: #8fae66;
  --zone-shopfloor: #d7a86e;
  --zone-walkway: #b9b2a3;
  --zone-threshold: #e3c15c;
  --zone-water: #8bbcd1;

  --terrain-road: #9a9186;
  --terrain-plaza: #e6cf9c;
  --terrain-tree: #6f9b5a;
  --terrain-water: #7fb2c9;

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Avenir Next", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
}

body {
  background-image:
    radial-gradient(ellipse at 15% 8%, rgba(255, 255, 255, 0.5), transparent 55%),
    radial-gradient(ellipse at 85% 92%, rgba(140, 110, 60, 0.08), transparent 55%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, p { margin: 0; }

button {
  font-family: inherit;
}

/* ---------- Topbar ---------- */

.topbar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  justify-content: space-between;
  align-items: flex-start;
  padding: 1.1rem 1.4rem 0.9rem;
  border-bottom: 2px solid var(--line);
  background: linear-gradient(180deg, var(--paper) 0%, var(--paper-deep) 100%);
}

.topbar-title h1 {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--ink);
}
.topbar-title h1 .dim { color: var(--ink-soft); font-weight: 400; padding: 0 0.15em; }

.subtitle {
  margin-top: 0.2rem;
  font-size: 0.82rem;
  color: var(--ink-soft);
  max-width: 46ch;
}

.topbar-controls {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.6rem;
}

.mode-tabs {
  display: inline-flex;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 999px;
  padding: 3px;
  box-shadow: var(--shadow);
}

.mode-tab {
  border: none;
  background: transparent;
  color: var(--ink-soft);
  font-size: 0.86rem;
  font-weight: 600;
  padding: 0.4rem 0.95rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}
.mode-tab:hover { color: var(--ink); }
.mode-tab.is-active {
  background: var(--accent);
  color: #fff8ee;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  justify-content: flex-end;
}

.toolbar-check {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-right: 0.3rem;
  user-select: none;
}

.sep {
  width: 1px;
  height: 1.4rem;
  background: var(--line);
  margin: 0 0.15rem;
}

.btn {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 0.4rem 0.7rem;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: transform 0.08s ease, background 0.15s ease;
  white-space: nowrap;
}
.btn:hover { background: var(--accent-soft); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn.danger { color: #7a2323; border-color: #e3b8b8; }
.btn.danger:hover { background: var(--danger-soft); }

/* ---------- Layout ---------- */

.layout {
  flex: 1;
  display: grid;
  grid-template-columns: 260px 1fr 250px;
  gap: 1rem;
  padding: 1rem 1.4rem 1.6rem;
  min-height: 0;
}

@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
}

.sidebar, .info-panel, .canvas-wrap {
  min-width: 0;
}

/* ---------- Sidebar / palette ---------- */

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.selector-row {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 0.7rem 0.8rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.selector-row label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  font-weight: 700;
}

.selector-row select,
.selector-row input[type="text"] {
  font-family: inherit;
  font-size: 0.88rem;
  padding: 0.4rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--card-border);
  background: #fffdf7;
  color: var(--ink);
}

.selector-meta {
  font-size: 0.74rem;
  color: var(--ink-soft);
}

.selector-status {
  font-size: 0.74rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  width: fit-content;
}
.selector-status-draft {
  color: #7a5a1e;
  background: var(--accent-soft);
}
.selector-status-game {
  color: #2f5c3f;
  background: #dcead9;
}
.selector-status-blank {
  color: var(--ink-soft);
  background: var(--paper-deep);
}

.palette {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  padding-right: 0.2rem;
}

.palette-group h2 {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--ink-soft);
  margin-bottom: 0.4rem;
  padding-left: 0.1rem;
}

.palette-subgroup + .palette-subgroup { margin-top: 0.55rem; }

.palette-subgroup h3 {
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--ink-soft);
  opacity: 0.75;
  margin: 0 0 0.3rem 0.1rem;
}

.palette-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.45rem;
}

.chip {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  padding: 0.5rem 0.3rem 0.4rem;
  border-radius: 10px;
  border: 1px solid var(--card-border);
  background: var(--card);
  cursor: grab;
  box-shadow: var(--shadow);
  text-align: center;
  min-height: 66px;
  user-select: none;
}
.chip:active { cursor: grabbing; }
.chip.is-zone-tool { cursor: pointer; }
.chip.is-zone-tool.is-active {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.chip-swatch {
  width: 30px;
  height: 30px;
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: rgba(0,0,0,0.55);
  background-size: cover;
  background-position: center;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.06);
}
.chip-swatch img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 7px;
}

.chip-label {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.15;
}
.chip-sub {
  font-size: 0.6rem;
  color: var(--ink-soft);
}

.chip-footprint {
  position: absolute;
  top: 3px;
  right: 5px;
  font-size: 0.55rem;
  color: var(--ink-soft);
  background: rgba(255,255,255,0.7);
  border-radius: 4px;
  padding: 0 3px;
}

.hint {
  font-size: 0.72rem;
  line-height: 1.4;
  color: var(--ink-soft);
  background: var(--card);
  border: 1px dashed var(--card-border);
  border-radius: 8px;
  padding: 0.55rem 0.65rem;
}

/* ---------- Canvas ---------- */

.canvas-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-height: 0;
}

.canvas-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--ink-soft);
}

.autosave {
  opacity: 0;
  transition: opacity 0.4s ease;
  font-weight: 600;
  color: #5c7a3f;
}
.autosave.show { opacity: 1; }

.canvas-scroll {
  flex: 1;
  overflow: auto;
  border-radius: 14px;
  border: 1px solid var(--card-border);
  background:
    linear-gradient(135deg, rgba(255,255,255,0.35), transparent 60%),
    var(--paper-deep);
  box-shadow: inset 0 1px 3px rgba(90,65,30,0.12);
  padding: 1.2rem;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
}

.lot {
  position: relative;
  background: #fffaf0;
  border: 2px solid var(--ink);
  border-radius: 4px;
  box-shadow: 0 4px 14px rgba(70, 50, 20, 0.25);
  flex-shrink: 0;
}

.lot.show-grid {
  background-image:
    repeating-linear-gradient(0deg, rgba(120,95,55,0.16) 0, rgba(120,95,55,0.16) 1px, transparent 1px, transparent calc(var(--tile) * 1px)),
    repeating-linear-gradient(90deg, rgba(120,95,55,0.16) 0, rgba(120,95,55,0.16) 1px, transparent 1px, transparent calc(var(--tile) * 1px));
}

.zone-rect {
  position: absolute;
  border-radius: 3px;
  opacity: 0.55;
  cursor: pointer;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.12);
}
.zone-rect.is-selected {
  outline: 2px dashed var(--ink);
  outline-offset: -2px;
  opacity: 0.75;
}
.zone-rect .zone-tag {
  position: absolute;
  top: 2px;
  left: 4px;
  font-size: 0.6rem;
  font-weight: 700;
  color: rgba(0,0,0,0.55);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  pointer-events: none;
}

.zone-preview {
  position: absolute;
  border: 2px dashed var(--ink);
  border-radius: 3px;
  background: rgba(255,255,255,0.25);
  pointer-events: none;
}

.item {
  position: absolute;
  border-radius: 6px;
  border: 1px solid rgba(0,0,0,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  cursor: grab;
  box-shadow: 0 1px 4px rgba(40,30,10,0.25);
  overflow: hidden;
  padding: 2px;
}
.item:active { cursor: grabbing; }
.item.is-selected {
  outline: 2px solid var(--ink);
  outline-offset: 1px;
  z-index: 5;
}
.item .item-label {
  font-size: 0.68rem;
  font-weight: 700;
  color: rgba(0,0,0,0.6);
  line-height: 1.1;
  pointer-events: none;
  text-shadow: 0 1px 0 rgba(255,255,255,0.4);
  letter-spacing: 0.02em;
}
.item img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
}

.item.drop-preview {
  pointer-events: none;
  opacity: 0.65;
  z-index: 6;
}
.item.drop-preview.invalid {
  background: var(--danger-soft) !important;
  border-color: var(--danger);
  outline: 2px solid var(--danger);
}

/* ---------- Info panel ---------- */

.info-panel {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 0.9rem;
  box-shadow: var(--shadow);
  font-size: 0.82rem;
  align-self: flex-start;
  position: sticky;
  top: 1rem;
}

.info-panel h2 {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--ink-soft);
  margin-bottom: 0.5rem;
}

.info-empty {
  color: var(--ink-soft);
  font-size: 0.8rem;
  line-height: 1.5;
}

.info-row {
  display: flex;
  justify-content: space-between;
  padding: 0.2rem 0;
  border-bottom: 1px solid var(--paper-deep);
}
.info-row:last-of-type { border-bottom: none; }
.info-row .k { color: var(--ink-soft); }
.info-row .v { font-weight: 600; }

.info-swatch {
  width: 100%;
  height: 60px;
  border-radius: 8px;
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.08);
  overflow: hidden;
}
.info-swatch img { width: 100%; height: 100%; object-fit: contain; }

.info-panel .btn { width: 100%; margin-top: 0.7rem; justify-content: center; }

/* ---------- Toast ---------- */

.toast {
  position: fixed;
  bottom: 1.2rem;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--ink);
  color: #fbf3e2;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.55rem 1rem;
  border-radius: 8px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.25);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 50;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}