/* ===== Токены дизайн-контракта ===== */
:root {
  --bg: #F5F4F0;
  --surface: #FFFFFF;
  --ink: #1F1F1F;
  --muted: #6B6B6B;
  --edge: #E3E1DB;
  --felt: #1F5C3D;
  --gold: #B5893C;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { background: var(--bg); }

/* ===== Header ===== */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--edge);
  padding: 20px 24px;
}
.site-header__inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 14px;
}
.site-header__badge {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  background: var(--felt);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex: none;
  box-shadow: inset 0 0 0 3px rgba(181, 137, 60, 0.55);
}
.brand-title {
  font-weight: 700;
  font-size: 32px;
  line-height: 1.15;
  margin: 0;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.brand-subtitle {
  font-weight: 500;
  font-size: 15px;
  margin: 2px 0 0;
  color: var(--muted);
}

/* ===== Layout: workspace grid ===== */
.workspace {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px;
  display: grid;
  grid-template-columns: 7fr 3fr;
  gap: 24px;
  align-items: start;
}

.table-col { grid-column: 1; min-width: 0; }

.side-col {
  grid-column: 2;
  position: sticky;
  top: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.panel-card {
  background: var(--surface);
  border: 1px solid var(--edge);
  border-radius: 16px;
  padding: 16px;
}
.panel-label {
  display: block;
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-bottom: 10px;
}

/* ===== Table card / canvas ===== */
.table-card {
  background: var(--surface);
  border: 1px solid var(--edge);
  border-radius: 20px;
  padding: 18px;
}
.table-canvas-wrap {
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 30px -12px rgba(31, 92, 61, 0.35);
}
#table-canvas {
  display: block;
  width: 100%;
  height: auto;
  touch-action: none;
  cursor: grab;
}
#table-canvas.dragging { cursor: grabbing; }

.drag-hint {
  margin: 14px 4px 0;
  font-size: 14px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
.drag-hint i { color: var(--gold); }

/* ===== Segmented control ===== */
.segmented {
  display: flex;
  background: var(--bg);
  border: 1px solid var(--edge);
  border-radius: 12px;
  padding: 4px;
  gap: 4px;
  overflow-x: auto;
}
.segmented__btn {
  flex: 1 1 0;
  white-space: nowrap;
  border: none;
  background: transparent;
  color: var(--muted);
  font-weight: 600;
  font-size: 14px;
  padding: 9px 12px;
  border-radius: 9px;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}
.segmented__btn[aria-selected="true"] {
  background: var(--felt);
  color: #fff;
  box-shadow: 0 4px 10px -4px rgba(31, 92, 61, 0.6);
}
.segmented__btn:not([aria-selected="true"]):hover {
  background: #ECEAE3;
  color: var(--ink);
}

/* ===== Ball palette ===== */
.palette-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(44px, 1fr));
  gap: 8px;
}
.palette-chip {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
  opacity: 0.45;
  box-shadow: inset 0 -3px 4px rgba(0,0,0,0.25), inset 0 2px 3px rgba(255,255,255,0.35);
}
.palette-chip:hover { transform: translateY(-2px); }
.palette-chip.active {
  opacity: 1;
  border-color: var(--felt);
  box-shadow: 0 0 0 3px rgba(31, 92, 61, 0.18), inset 0 -3px 4px rgba(0,0,0,0.25), inset 0 2px 3px rgba(255,255,255,0.35);
}
.palette-chip .stripe-band {
  position: absolute;
  left: 0; right: 0;
  top: 32%; bottom: 32%;
  background: #fff;
}
.palette-chip span { position: relative; z-index: 1; text-shadow: 0 1px 1px rgba(0,0,0,0.35); }
.palette-chip.is-dark span { color: #1F1F1F; text-shadow: none; }

/* ===== Buttons ===== */
.btn-row { display: flex; flex-wrap: wrap; gap: 8px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 14px;
  border-radius: 11px;
  padding: 10px 14px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: filter 0.15s ease, transform 0.05s ease;
  flex: 1 1 auto;
}
.btn:active { transform: translateY(1px); }
.btn--ghost {
  background: var(--bg);
  border-color: var(--edge);
  color: var(--ink);
}
.btn--ghost:hover { filter: brightness(0.97); }
.btn--accent {
  background: var(--felt);
  color: #fff;
}
.btn--accent:hover { filter: brightness(1.08); }
.btn--accent:disabled { opacity: 0.75; cursor: progress; }
.btn--big {
  width: 100%;
  padding: 15px 18px;
  font-size: 15px;
  border-radius: 13px;
  box-shadow: 0 8px 18px -8px rgba(31, 92, 61, 0.55);
}
.download-wrap { padding: 2px; }

.btn--ghost.is-active {
  background: var(--felt);
  border-color: var(--felt);
  color: #fff;
}
.btn--ghost.is-active:hover { filter: brightness(1.08); }

.arrow-hint {
  margin: 10px 2px 0;
  font-size: 12.5px;
  color: var(--muted);
  display: flex;
  align-items: flex-start;
  gap: 6px;
  line-height: 1.4;
}
.arrow-hint i { color: var(--gold); margin-top: 1px; flex: none; }

#table-canvas.arrow-mode { cursor: crosshair; }
#table-canvas.arrow-mode.dragging { cursor: crosshair; }

/* ===== Toast ===== */
.toast {
  position: fixed;
  top: 18px;
  left: 50%;
  transform: translateX(-50%) translateY(-16px);
  background: #2A2020;
  color: #fff;
  border: 1px solid rgba(181, 137, 60, 0.45);
  border-radius: 12px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  box-shadow: 0 12px 30px -10px rgba(0,0,0,0.45);
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  max-width: calc(100vw - 32px);
}
.toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}
.toast i.fa-triangle-exclamation { color: #E0A84B; }
.toast button {
  border: none;
  background: rgba(255,255,255,0.12);
  color: #fff;
  border-radius: 8px;
  padding: 6px 10px;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
}
.toast button:hover { background: rgba(255,255,255,0.2); }
#toast-close { background: transparent; padding: 6px 8px; }

/* ===== Mobile (< 768px): единый поток ===== */
@media (max-width: 767px) {
  .workspace {
    display: flex;
    flex-direction: column;
    padding: 16px 16px 96px;
    gap: 14px;
  }
  .side-col {
    display: contents; /* дети становятся прямыми элементами потока */
  }
  .switcher-wrap { order: 1; }
  .table-col { order: 2; display: flex; flex-direction: column; gap: 10px; }
  .palette-wrap { order: 3; }
  .secondary-actions-wrap { order: 4; }
  .download-wrap {
    order: 5;
    position: fixed;
    left: 0; right: 0; bottom: 0;
    padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
    background: linear-gradient(to top, var(--bg) 60%, rgba(245,244,240,0));
    z-index: 40;
  }
  .brand-title { font-size: 24px; }
}