/* =========================================================================
   ChampCourts Space Designer — component stylesheet
   Extracted from design mockup. Class names follow .sd- BEM convention.
   ========================================================================= */

:root {
  /* ----- ChampCourts brand ----- */
  --cc-navy: #1A365D;
  --cc-navy-700: #14294a;
  --cc-navy-300: #436391;
  --cc-gold: #D4A012;
  --cc-gold-600: #b8880b;

  /* ----- M3-style surface stack ----- */
  --md-sys-color-primary: #1A365D;
  --md-sys-color-on-primary: #ffffff;
  --md-sys-color-primary-container: #D4E4FF;
  --md-sys-color-on-primary-container: #001b3f;
  --md-sys-color-surface: #FFFFFF;
  --md-sys-color-on-surface: #1B1B1F;
  --md-sys-color-surface-variant: #F0F4F8;
  --md-sys-color-on-surface-variant: #44474F;
  --md-sys-color-outline: #74777F;
  --md-sys-color-outline-variant: #C4C7C5;

  /* ----- Status colors ----- */
  --sd-error: #C62828;
  --sd-error-container: #FFEBEE;
  --sd-warning: #F57C00;
  --sd-warning-container: #FFF4E5;
  --sd-success: #2E7D32;
  --sd-success-container: #E8F5E9;

  /* ----- Layout tokens ----- */
  --sd-palette-width: 250px;
  --sd-properties-width: 280px;
  --sd-header-height: 52px;
  --sd-status-height: 36px;
  --sd-shell-header: 64px;
  --sd-canvas-bg: #E8EDF3;
  --sd-page-bg: #F2F3FA;

  /* ----- Radii ----- */
  --sd-r-sm: 6px;
  --sd-r-md: 8px;
  --sd-r-lg: 10px;
  --sd-r-xl: 12px;
  --sd-r-pill: 9999px;

  /* ----- Elevation ----- */
  --sd-elev-1: 0 1px 3px rgba(0,0,0,0.08);
  --sd-elev-2: 0 2px 12px rgba(0,0,0,0.08);
  --sd-elev-3: 0 8px 32px rgba(0,0,0,0.12);

  /* ----- Type ----- */
  --sd-font: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --sd-font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* ============================================================
   Viewbar tabs (sd-viewbar)
   ============================================================ */
.sd-viewbar {
  background: #fff;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  padding: 10px 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-family: var(--sd-font);
}
.sd-viewbar__tab {
  appearance: none;
  border: 0;
  background: transparent;
  font: inherit;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  color: var(--md-sys-color-on-surface-variant);
}
.sd-viewbar__tab:hover { color: var(--cc-navy); }
.sd-viewbar__tab--active {
  background: var(--md-sys-color-surface-variant);
  color: var(--cc-navy);
}

/* ============================================================
   Buttons — shared
   ============================================================ */
.sd-btn {
  appearance: none;
  border: 1px solid var(--md-sys-color-outline-variant);
  background: #fff;
  color: var(--md-sys-color-on-surface);
  font: inherit;
  font-weight: 600;
  font-size: 13px;
  padding: 8px 14px;
  border-radius: var(--sd-r-md);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}
.sd-btn:hover { background: var(--md-sys-color-surface-variant); }
.sd-btn--small { padding: 5px 10px; font-size: 12px; border-radius: var(--sd-r-sm); }
.sd-btn--primary {
  background: var(--cc-navy);
  border-color: var(--cc-navy);
  color: #fff;
}
.sd-btn--primary:hover { background: var(--cc-navy-700); border-color: var(--cc-navy-700); }
.sd-btn--gold {
  background: var(--cc-gold);
  border-color: var(--cc-gold);
  color: #fff;
}
.sd-btn--gold:hover { background: var(--cc-gold-600); border-color: var(--cc-gold-600); }
.sd-btn--danger {
  background: var(--sd-error-container);
  border-color: transparent;
  color: var(--sd-error);
}
.sd-btn--danger:hover { background: #ffd9dc; }
.sd-btn--ghost {
  background: transparent;
  border-color: transparent;
  color: var(--md-sys-color-on-surface-variant);
}
.sd-btn--ghost:hover { background: var(--md-sys-color-surface-variant); }
.sd-btn[aria-pressed="true"] {
  background: var(--md-sys-color-primary-container);
  border-color: var(--md-sys-color-primary-container);
  color: var(--cc-navy);
}
.sd-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.sd-btn--block { width: 100%; justify-content: center; }

/* Tiny icon button (toolbar) */
.sd-iconbtn {
  appearance: none;
  border: 0;
  background: transparent;
  width: 28px; height: 28px;
  border-radius: 6px;
  display: inline-grid; place-items: center;
  cursor: pointer;
  color: var(--md-sys-color-on-surface-variant);
}
.sd-iconbtn:hover { background: var(--md-sys-color-surface-variant); color: var(--cc-navy); }
.sd-iconbtn[aria-pressed="true"] {
  background: var(--md-sys-color-primary-container);
  color: var(--cc-navy);
}
.sd-iconbtn svg { width: 16px; height: 16px; display: block; }

/* ============================================================
   Pills / chips
   ============================================================ */
.sd-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: var(--sd-r-pill);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.sd-pill--beta {
  background: var(--cc-gold);
  color: #fff;
  text-transform: uppercase;
  font-size: 10px;
  letter-spacing: 0.08em;
  padding: 2px 7px;
}
.sd-pill--computed {
  background: var(--md-sys-color-primary-container);
  color: var(--cc-navy);
  font-size: 10px;
}
.sd-pill--area {
  background: rgba(255,255,255,0.92);
  color: var(--cc-navy);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--sd-r-xl);
  box-shadow: var(--sd-elev-1);
}

/* ============================================================
   Form inputs
   ============================================================ */
.sd-input, .sd-select {
  width: 100%;
  font: inherit;
  font-size: 13px;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--sd-r-md);
  padding: 8px 10px;
  background: #fff;
  color: var(--md-sys-color-on-surface);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.sd-input:focus, .sd-select:focus {
  border-color: var(--cc-navy);
  box-shadow: 0 0 0 2px rgba(26,54,93,0.18);
}
.sd-input::placeholder { color: var(--md-sys-color-outline); }
.sd-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--md-sys-color-on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}
.sd-field { display: flex; flex-direction: column; gap: 0; }
.sd-field--with-suffix { position: relative; }
.sd-field__suffix {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 11px;
  color: var(--md-sys-color-on-surface-variant);
  pointer-events: none;
}
.sd-field__hint {
  margin-top: 6px;
  font-size: 11px;
  color: var(--md-sys-color-on-surface-variant);
}

/* ============================================================
   Phase 1 — Plot Input
   FILE: sd-plot-input.js
   ============================================================ */
.sd-plot-input {
  min-height: calc(100vh - var(--sd-shell-header) - 41px);
  background: var(--sd-canvas-bg);
  display: grid;
  place-items: center;
  padding: 32px 24px;
  position: relative;
  overflow: hidden;
}
/* subtle grid backdrop on the canvas-bg */
.sd-plot-input::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(26,54,93,0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(26,54,93,0.06) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: radial-gradient(ellipse at center, black 50%, transparent 100%);
  pointer-events: none;
}
.sd-plot-input__card {
  position: relative;
  width: 560px;
  background: #fff;
  border-radius: var(--sd-r-xl);
  box-shadow: var(--sd-elev-2);
  padding: 32px 40px 28px;
}
.sd-plot-input__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cc-gold-600);
  margin-bottom: 8px;
}
.sd-plot-input__eyebrow::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cc-gold);
}
.sd-plot-input__title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--cc-navy);
  margin: 0 0 4px;
  letter-spacing: -0.01em;
}
.sd-plot-input__subtitle {
  font-size: 0.85rem;
  color: var(--md-sys-color-on-surface-variant);
  margin: 0 0 20px;
}

.sd-plot-input__client {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding-bottom: 18px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

/* shape selector */
.sd-plot-input__shapes {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-bottom: 18px;
}
.sd-plot-input__shape-btn {
  appearance: none;
  background: #fff;
  border: 2px solid var(--md-sys-color-outline-variant);
  border-radius: var(--sd-r-lg);
  padding: 12px 6px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
  font: inherit;
  color: var(--md-sys-color-on-surface-variant);
}
.sd-plot-input__shape-btn:hover { background: var(--md-sys-color-surface-variant); }
.sd-plot-input__shape-btn.is-active,
.sd-plot-input__shape-btn--active {
  border-color: var(--cc-navy);
  background: var(--md-sys-color-primary-container);
  color: var(--cc-navy);
}
.sd-plot-input__shape-btn svg { width: 30px; height: 24px; }
.sd-plot-input__shape-icon { display: flex; align-items: center; }
.sd-plot-input__shape-label {
  font-size: 11px;
  font-weight: 600;
}

/* dimension fields */
.sd-plot-input__fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}
.sd-plot-input__field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.sd-plot-input__field--full {
  grid-column: 1 / -1;
}
.sd-plot-input__field label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--md-sys-color-on-surface-variant);
}
.sd-plot-input__field input {
  padding: 8px 12px;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: 8px;
  font-size: 0.9rem;
  font: inherit;
  outline: none;
}
.sd-plot-input__field input:focus {
  border-color: var(--cc-navy);
  box-shadow: 0 0 0 2px rgba(26,54,93,0.15);
}
.sd-plot-input__hint {
  font-size: 11px;
  color: var(--md-sys-color-on-surface-variant);
  margin: -6px 0 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.sd-plot-input__hint svg { width: 12px; height: 12px; color: var(--cc-gold); }

/* preview */
.sd-plot-input__preview {
  position: relative;
  height: 220px;
  background: #F7FAFC;
  border: 1px dashed var(--md-sys-color-outline-variant);
  border-radius: var(--sd-r-md);
  margin-bottom: 20px;
  overflow: hidden;
  background-image: radial-gradient(circle at center, rgba(26,54,93,0.18) 0.6px, transparent 1px);
  background-size: 14px 14px;
}
.sd-plot-input__preview svg,
.sd-plot-input__preview canvas {
  width: 100%;
  height: 100%;
  display: block;
}
.sd-plot-input__area-badge {
  position: absolute;
  right: 12px;
  bottom: 12px;
}
.sd-plot-input__preview-meta {
  position: absolute;
  left: 12px;
  top: 12px;
  font-family: var(--sd-font-mono);
  font-size: 10px;
  color: var(--md-sys-color-on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.sd-plot-input__actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.sd-plot-input__actions-meta {
  font-size: 11px;
  color: var(--md-sys-color-on-surface-variant);
  margin-right: auto;
}
.sd-plot-input__info {
  text-align: center;
  margin-bottom: 16px;
}
.sd-plot-input__create:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Freeform polygon drawing mode */
.sd-freeform-canvas {
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: 8px;
  cursor: crosshair;
  background: #F7FAFC;
}
.sd-freeform-hint {
  font-size: 0.75rem;
  color: var(--md-sys-color-on-surface-variant);
  text-align: center;
  margin-top: 6px;
}

/* ============================================================
   Phase 2 — Workspace
   FILE: space-designer.js (overall layout)
   ============================================================ */
.sd-workspace {
  display: grid;
  grid-template-columns: var(--sd-palette-width) 1fr var(--sd-properties-width);
  grid-template-rows: var(--sd-header-height) 1fr var(--sd-status-height);
  grid-template-areas:
    "header header header"
    "palette canvas properties"
    "status status status";
  height: calc(100vh - var(--sd-shell-header) - 41px);
  min-height: 660px;
  background: var(--md-sys-color-surface);
}

/* --- Header (FILE: space-designer.js) --- */
.sd-header {
  grid-area: header;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background: #fff;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  gap: 16px;
}
.sd-header__title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--cc-navy);
  font-size: 15px;
}
.sd-header__divider {
  width: 1px;
  height: 20px;
  background: var(--md-sys-color-outline-variant);
}
.sd-header__client {
  font-size: 13px;
  color: var(--md-sys-color-on-surface-variant);
}
.sd-header__client b { color: var(--cc-navy); font-weight: 600; }
.sd-header__save {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--sd-success);
  font-weight: 500;
}
.sd-header__save svg { width: 12px; height: 12px; }
.sd-header__actions {
  display: flex;
  align-items: center;
  gap: 6px;
}
.sd-header__actions .sd-divider {
  width: 1px; height: 22px;
  background: var(--md-sys-color-outline-variant);
  margin: 0 4px;
}
.sd-divider {
  width: 1px; height: 22px;
  background: var(--md-sys-color-outline-variant);
  margin: 0 4px;
}
.sd-header__zoom {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--sd-r-md);
  overflow: hidden;
  background: #fff;
}
.sd-header__zoom button {
  appearance: none;
  border: 0;
  background: transparent;
  width: 28px; height: 28px;
  cursor: pointer;
  color: var(--md-sys-color-on-surface-variant);
  display: inline-grid;
  place-items: center;
}
.sd-header__zoom button:hover { background: var(--md-sys-color-surface-variant); color: var(--cc-navy); }
.sd-header__zoom-value {
  font-size: 12px;
  font-family: var(--sd-font-mono);
  font-weight: 500;
  color: var(--md-sys-color-on-surface-variant);
  min-width: 44px;
  text-align: center;
  border-left: 1px solid var(--md-sys-color-outline-variant);
  border-right: 1px solid var(--md-sys-color-outline-variant);
  padding: 0 4px;
  height: 28px;
  display: grid;
  place-items: center;
}

/* --- Palette (FILE: sd-court-palette.js) --- */
.sd-palette {
  grid-area: palette;
  background: #fff;
  border-right: 1px solid var(--md-sys-color-outline-variant);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.sd-palette__search {
  position: sticky; top: 0;
  background: #fff;
  z-index: 2;
  padding: 12px;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}
.sd-palette__search-wrap {
  position: relative;
}
.sd-palette__search-wrap svg {
  position: absolute;
  left: 10px; top: 50%;
  transform: translateY(-50%);
  width: 14px; height: 14px;
  color: var(--md-sys-color-outline);
  pointer-events: none;
}
.sd-palette__search input,
.sd-palette__search .sd-input {
  width: 100%;
  padding: 7px 10px 7px 30px;
  font: inherit;
  font-size: 12.5px;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--sd-r-md);
  background: var(--md-sys-color-surface-variant);
  outline: none;
}
.sd-palette__search input:focus,
.sd-palette__search .sd-input:focus {
  background: #fff;
  border-color: var(--cc-navy);
}

.sd-palette__section {
  padding: 14px 12px 10px;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}
.sd-palette__section:last-child { border-bottom: 0; }
.sd-palette__section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 8px;
  padding: 0 4px;
}
.sd-palette__section-count {
  font-family: var(--sd-font-mono);
  font-weight: 500;
  color: var(--md-sys-color-outline);
  font-size: 10px;
  letter-spacing: 0;
}

/* palette item */
.sd-palette__item {
  display: grid;
  grid-template-columns: 12px 36px 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 7px 8px 7px 4px;
  border-radius: var(--sd-r-md);
  cursor: grab;
  transition: background 0.15s, transform 0.05s;
  user-select: none;
  position: relative;
}
.sd-palette__item:hover {
  background: var(--md-sys-color-surface-variant);
}
.sd-palette__item:hover .sd-palette__item-grip { opacity: 1; }
.sd-palette__item:active { cursor: grabbing; transform: scale(0.985); }
.sd-palette__item.is-dragging { opacity: 0.5; }
.sd-palette__item-grip {
  width: 10px;
  height: 16px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  opacity: 0.35;
  transition: opacity 0.15s;
  align-content: center;
}
.sd-palette__item-grip span {
  width: 2px;
  height: 2px;
  border-radius: 50%;
  background: var(--md-sys-color-on-surface-variant);
}

.sd-palette__item-swatch {
  width: 36px; height: 24px;
  border-radius: 4px;
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  flex-shrink: 0;
}
.sd-palette__item-swatch::after {
  content: "";
  width: 26px; height: 14px;
  border-radius: 2px;
  background: var(--swatch-core);
}
.sd-palette__item-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--cc-navy);
  line-height: 1.2;
}
.sd-palette__item-dims {
  font-size: 11px;
  color: var(--md-sys-color-on-surface-variant);
  font-family: var(--sd-font-mono);
}
.sd-palette__item-area {
  font-size: 10.5px;
  color: var(--md-sys-color-outline);
  font-family: var(--sd-font-mono);
  text-align: right;
}

.sd-palette__item--draw {
  display: flex;
  justify-content: space-between;
}
.sd-palette__item--draw .sd-palette__item-name { font-size: 13px; font-weight: 600; color: var(--cc-navy); }

/* Auto-arrange section */
.sd-palette__autorow {
  display: grid;
  grid-template-columns: 14px 1fr 60px;
  align-items: center;
  gap: 8px;
  padding: 6px 4px;
  font-size: 12.5px;
}
.sd-palette__autorow-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
}
.sd-palette__autorow-name { color: var(--md-sys-color-on-surface); font-weight: 500; }
.sd-palette__autorow-input {
  width: 60px;
  height: 28px;
  font: inherit;
  font-size: 12px;
  font-family: var(--sd-font-mono);
  text-align: center;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--sd-r-sm);
  background: #fff;
  outline: none;
}
.sd-palette__autorow-input:focus {
  border-color: var(--cc-navy);
  box-shadow: 0 0 0 2px rgba(26,54,93,0.15);
}
.sd-palette__autoarrange {
  margin-top: 12px;
}

/* --- Canvas area (FILE: sd-canvas.js) --- */
.sd-canvas-area {
  grid-area: canvas;
  background: var(--sd-canvas-bg);
  position: relative;
  overflow: hidden;
}
.sd-canvas-wrap {
  position: absolute;
  inset: 0;
}
.sd-canvas-wrap svg {
  width: 100%;
  height: 100%;
  display: block;
}
.sd-canvas-toolbar {
  position: absolute;
  top: 12px;
  right: 12px;
  display: flex;
  align-items: center;
  gap: 2px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.7);
  border-radius: var(--sd-r-md);
  padding: 4px;
  box-shadow: var(--sd-elev-2);
}
.sd-canvas-toolbar .sd-divider {
  width: 1px;
  height: 18px;
  background: var(--md-sys-color-outline-variant);
  margin: 0 2px;
}
.sd-canvas-zoombadge {
  position: absolute;
  bottom: 12px;
  left: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-radius: var(--sd-r-md);
  padding: 6px 10px;
  font-size: 11px;
  font-family: var(--sd-font-mono);
  color: var(--md-sys-color-on-surface-variant);
  box-shadow: var(--sd-elev-1);
}
.sd-canvas-helpbadge {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-radius: var(--sd-r-md);
  padding: 8px 12px;
  font-size: 11px;
  color: var(--md-sys-color-on-surface-variant);
  box-shadow: var(--sd-elev-1);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.sd-canvas-helpbadge kbd {
  font-family: var(--sd-font-mono);
  font-size: 10px;
  background: var(--md-sys-color-surface-variant);
  padding: 1px 5px;
  border-radius: 3px;
  border: 1px solid var(--md-sys-color-outline-variant);
  color: var(--cc-navy);
}

/* Drop-zone overlay */
.sd-canvas-area--drag-over,
.sd-dropzone {
  outline: 3px dashed var(--sd-success);
  outline-offset: -3px;
}
.sd-dropzone {
  position: absolute;
  inset: 0;
  border: 2px dashed var(--sd-success);
  background: rgba(46,125,50,0.08);
  border-radius: var(--sd-r-md);
  pointer-events: none;
  display: none;
  align-items: center;
  justify-content: center;
  color: var(--sd-success);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.sd-dropzone:not([hidden]) {
  display: flex;
}

/* Smart guides */
.sd-guide {
  position: absolute;
  background: #FF3D8B;
  pointer-events: none;
}
.sd-guide--v { width: 1px; }
.sd-guide--h { height: 1px; }
.sd-guide__label {
  position: absolute;
  background: #FF3D8B;
  color: #fff;
  font-family: var(--sd-font-mono);
  font-size: 10px;
  font-weight: 600;
  padding: 1px 5px;
  border-radius: 3px;
  white-space: nowrap;
}

/* Contextual mini-toolbar above selected element */
.sd-context-toolbar {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 1px;
  background: var(--cc-navy);
  color: #fff;
  border-radius: var(--sd-r-md);
  padding: 3px;
  box-shadow: var(--sd-elev-3);
  font-size: 12px;
}
.sd-context-toolbar::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 8px; height: 8px;
  background: var(--cc-navy);
}
.sd-context-toolbar button {
  appearance: none;
  border: 0;
  background: transparent;
  color: #fff;
  width: 26px;
  height: 26px;
  border-radius: 5px;
  display: grid;
  place-items: center;
  cursor: pointer;
}
.sd-context-toolbar button:hover { background: rgba(255,255,255,0.14); }
.sd-context-toolbar button.is-danger:hover { background: rgba(255,80,80,0.5); }
.sd-context-toolbar svg { width: 14px; height: 14px; }
.sd-context-toolbar__sep { width: 1px; height: 16px; background: rgba(255,255,255,0.18); margin: 0 2px; }

/* Toast */
.sd-toast {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: #fff;
  border-left: 3px solid var(--sd-success);
  border-radius: var(--sd-r-md);
  box-shadow: var(--sd-elev-2);
  padding: 8px 14px 8px 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--md-sys-color-on-surface);
}
.sd-toast--warning { border-left-color: var(--sd-warning); }
.sd-toast--info { border-left-color: #1565C0; }
.sd-toast svg { width: 14px; height: 14px; }
.sd-toast--success svg { color: var(--sd-success); }
.sd-toast--warning svg { color: var(--sd-warning); }
.sd-toast--collision-pill {
  position: absolute;
  background: #FFEBEE;
  border: 1px solid #C62828;
  color: #C62828;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 11px;
  box-shadow: var(--sd-elev-1);
  pointer-events: none;
  z-index: 6;
  white-space: nowrap;
  transform: translate(-50%, -100%);
  margin-top: -4px;
}

/* --- Properties panel (FILE: sd-properties.js) --- */
.sd-properties {
  grid-area: properties;
  background: #fff;
  border-left: 1px solid var(--md-sys-color-outline-variant);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.sd-properties__section {
  padding: 14px 14px 16px;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}
.sd-properties__section:last-child { border-bottom: 0; }
.sd-properties__section-header,
.sd-properties__section-title {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--md-sys-color-on-surface-variant);
  margin: 0 0 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.sd-properties__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 0;
  font-size: 12.5px;
  gap: 8px;
}
.sd-properties__label {
  color: var(--md-sys-color-on-surface-variant);
}
.sd-properties__value {
  color: var(--md-sys-color-on-surface);
  font-weight: 500;
  font-family: var(--sd-font-mono);
  font-size: 12px;
}
.sd-properties__field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 8px;
}
.sd-properties__delete {
  margin-top: 12px;
  width: 100%;
}

/* area summary */
.sd-area-summary {
  background: var(--md-sys-color-surface-variant);
  border-radius: var(--sd-r-md);
  padding: 12px;
}
.sd-area-summary__total {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 10px;
}
.sd-area-summary__total-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--md-sys-color-on-surface-variant);
  font-weight: 600;
}
.sd-area-summary__total-value {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--cc-navy);
  letter-spacing: -0.01em;
}
.sd-area-summary__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 0;
  font-size: 12px;
  color: var(--md-sys-color-on-surface);
}
.sd-area-summary__row-name {
  display: flex;
  align-items: center;
  gap: 8px;
}
.sd-area-summary__row-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.sd-area-summary__row-value {
  font-family: var(--sd-font-mono);
  font-size: 11.5px;
  color: var(--md-sys-color-on-surface-variant);
}
.sd-area-summary__row--remaining {
  font-weight: 600;
  border-top: 1px solid var(--md-sys-color-outline-variant);
  margin-top: 6px;
  padding-top: 8px;
}
.sd-area-summary__row--remaining .sd-area-summary__row-value {
  color: var(--cc-navy);
  font-weight: 700;
}
.sd-area-summary__bar {
  margin-top: 12px;
  height: 6px;
  background: rgba(0,0,0,0.06);
  border-radius: 999px;
  overflow: hidden;
  position: relative;
}
.sd-area-summary__bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #2E7D32 0%, #2E7D32 60%, #F57C00 80%, #C62828 100%);
  border-radius: 999px;
  transition: width 0.3s ease;
}
.sd-area-summary__bar-meta {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
  font-size: 11px;
  color: var(--md-sys-color-on-surface-variant);
}
.sd-area-summary__bar-meta b { color: var(--sd-success); }

/* Suggestions / What Fits */
.sd-suggestions {
  background: #FFFDE7;
  border: 1px solid #FFF176;
  border-radius: var(--sd-r-md);
  padding: 10px 12px;
}
.sd-suggestions__title {
  font-size: 11px;
  font-weight: 700;
  color: #F57F17;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.sd-suggestions__title svg { width: 12px; height: 12px; }
.sd-suggestions__item {
  display: grid;
  grid-template-columns: 10px 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  font-size: 12px;
}
.sd-suggestions__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
}
.sd-suggestions__name { color: var(--md-sys-color-on-surface); font-weight: 500; }
.sd-suggestions__name span {
  font-family: var(--sd-font-mono);
  font-size: 11px;
  color: var(--md-sys-color-on-surface-variant);
  font-weight: 400;
  margin-left: 4px;
}
.sd-suggestions__count {
  font-family: var(--sd-font-mono);
  font-size: 11.5px;
  font-weight: 600;
  color: #F57F17;
}
.sd-suggestions__empty {
  font-size: 0.78rem;
  color: var(--md-sys-color-on-surface-variant);
  text-align: center;
  padding: 8px;
}

/* Court colors block */
.sd-court-colors {
  margin-top: 12px;
  border-top: 1px solid var(--md-sys-color-outline-variant);
  padding-top: 12px;
}
.sd-court-colors > summary {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--md-sys-color-on-surface-variant);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 0;
  margin-bottom: 8px;
}
.sd-court-colors > summary::-webkit-details-marker { display: none; }
.sd-court-colors > summary::after {
  content: "";
  width: 8px; height: 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.15s;
}
.sd-court-colors[open] > summary::after { transform: rotate(-135deg); }
.sd-court-colors__zone {
  margin-bottom: 10px;
}
.sd-court-colors__zone-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--md-sys-color-on-surface);
  margin-bottom: 4px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.sd-court-colors__zone-label small {
  font-family: var(--sd-font-mono);
  font-size: 10px;
  color: var(--md-sys-color-on-surface-variant);
  font-weight: 400;
}
.sd-court-colors__swatches {
  display: flex;
  gap: 5px;
}
.sd-court-colors__swatch {
  width: 24px; height: 24px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  appearance: none;
  padding: 0;
  transition: transform 0.1s ease;
}
.sd-court-colors__swatch:hover { transform: scale(1.1); }
.sd-court-colors__swatch.is-active {
  border-color: var(--cc-navy);
  box-shadow: 0 0 0 1.5px #fff inset;
}

/* Properties — court selected header */
.sd-properties__entity-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 0 12px;
}
.sd-properties__entity-dot {
  width: 14px; height: 14px;
  border-radius: 4px;
  flex-shrink: 0;
}
.sd-properties__entity-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--cc-navy);
}
.sd-properties__entity-meta {
  font-size: 11px;
  color: var(--md-sys-color-on-surface-variant);
  font-family: var(--sd-font-mono);
}

.sd-properties__grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

/* --- Status bar (FILE: space-designer.js) --- */
.sd-status-bar {
  grid-area: status;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  background: #fff;
  border-top: 1px solid var(--md-sys-color-outline-variant);
  font-size: 12px;
  color: var(--md-sys-color-on-surface-variant);
}
.sd-status-bar__item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.sd-status-bar__item b,
.sd-status-bar__item strong {
  color: var(--cc-navy);
  font-weight: 600;
  font-family: var(--sd-font-mono);
}
.sd-status-bar__item--util b,
.sd-status-bar__item--util strong { color: var(--sd-success); }
.sd-status-bar__item--remaining b { color: var(--cc-navy); }
.sd-status-bar__divider {
  width: 1px;
  height: 16px;
  background: var(--md-sys-color-outline-variant);
}
.sd-status-bar__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
}
.sd-status-bar__item--right { margin-left: auto; }
.sd-status-bar__sep {
  width: 1px;
  height: 16px;
  background: var(--md-sys-color-outline-variant);
  margin: 0 4px;
}

/* ============================================================
   My Designs list (FILE: space-designer.js)
   ============================================================ */
.sd-designs-list {
  min-height: calc(100vh - var(--sd-shell-header) - 41px);
  background: var(--sd-page-bg);
  padding: 40px 24px;
}
.sd-designs-list__inner {
  max-width: 800px;
  margin: 0 auto;
}
.sd-designs-list__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.sd-designs-list__title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--cc-navy);
  margin: 0;
  letter-spacing: -0.01em;
}
.sd-designs-list__subtitle {
  font-size: 13px;
  color: var(--md-sys-color-on-surface-variant);
  margin: 2px 0 0;
}
.sd-designs-list__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}
.sd-design-card {
  background: #fff;
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--sd-r-lg);
  padding: 14px;
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.sd-design-card:hover {
  box-shadow: var(--sd-elev-2);
  border-color: var(--cc-navy);
  transform: translateY(-1px);
}
.sd-design-card--new {
  border: 1.5px dashed var(--md-sys-color-outline-variant);
  background: transparent;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--md-sys-color-on-surface-variant);
  min-height: 168px;
  cursor: pointer;
}
.sd-design-card--new:hover {
  border-color: var(--cc-gold);
  background: #fffaee;
  color: var(--cc-gold-600);
  transform: none;
}
.sd-design-card--new svg { width: 24px; height: 24px; margin-bottom: 6px; }
.sd-design-card__thumb {
  height: 90px;
  border-radius: var(--sd-r-sm);
  background: var(--sd-canvas-bg);
  position: relative;
  overflow: hidden;
}
.sd-design-card__thumb svg { width: 100%; height: 100%; display: block; }
.sd-design-card__name {
  font-size: 13px;
  font-weight: 600;
  color: var(--cc-navy);
  line-height: 1.3;
}
.sd-design-card__meta {
  font-size: 11px;
  color: var(--md-sys-color-on-surface-variant);
  display: flex;
  justify-content: space-between;
}
.sd-design-card__stats {
  font-size: 11.5px;
  color: var(--md-sys-color-on-surface);
  display: flex;
  gap: 10px;
  align-items: center;
}
.sd-design-card__stats span { display: inline-flex; align-items: center; gap: 4px; }

/* ============================================================
   Empty state (FILE: sd-canvas.js)
   ============================================================ */
.sd-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
}
.sd-empty__inner {
  text-align: center;
  color: var(--md-sys-color-on-surface-variant);
  max-width: 320px;
}
.sd-empty__icon {
  width: 64px; height: 64px;
  margin: 0 auto 14px;
  opacity: 0.4;
}
.sd-empty__text,
.sd-empty__title {
  font-size: 15px;
  font-weight: 600;
  color: var(--md-sys-color-on-surface-variant);
  margin: 0 0 4px;
}
.sd-empty__sub {
  font-size: 12.5px;
  color: var(--md-sys-color-outline);
  margin: 0;
}

/* Amenity swatch — used in palette */
.sd-palette__amenity-swatch {
  flex-shrink: 0;
}

/* ============================================================
   Rulers (top + left, DOM-based with tick marks)
   ============================================================ */
.sd-ruler {
  position: absolute;
  background: rgba(255,255,255,0.88);
  z-index: 4;
  overflow: hidden;
  pointer-events: none;
  font-family: var(--sd-font-mono);
  font-size: 8px;
  color: #44474F;
}
.sd-ruler--top {
  top: 0; left: 20px; right: 0;
  height: 20px;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}
.sd-ruler--left {
  top: 20px; left: 0; bottom: 0;
  width: 20px;
  border-right: 1px solid var(--md-sys-color-outline-variant);
}
.sd-ruler__tick {
  position: absolute;
  font-size: 0;
}
.sd-ruler--top .sd-ruler__tick {
  bottom: 0;
  width: 1px; height: 5px;
  background: rgba(26,54,93,0.25);
}
.sd-ruler--top .sd-ruler__tick--major {
  height: 10px;
  background: rgba(26,54,93,0.5);
  font-size: 8px;
  width: auto;
  text-align: center;
  transform: translateX(-50%);
  top: 2px;
  bottom: auto;
}
.sd-ruler--left .sd-ruler__tick {
  right: 0;
  height: 1px; width: 5px;
  background: rgba(26,54,93,0.25);
}
.sd-ruler--left .sd-ruler__tick--major {
  width: auto;
  height: auto;
  background: transparent;
  font-size: 8px;
  right: 4px;
  transform: translateY(-50%);
  writing-mode: vertical-lr;
  text-orientation: mixed;
}
.sd-ruler__corner {
  position: absolute;
  top: 0; left: 0;
  width: 20px; height: 20px;
  background: rgba(255,255,255,0.92);
  border-right: 1px solid var(--md-sys-color-outline-variant);
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  z-index: 5;
  pointer-events: none;
}

/* ============================================================
   Compass Rose
   ============================================================ */
.sd-compass {
  position: absolute;
  top: 28px; right: 12px;
  width: 32px; height: 40px;
  opacity: 0.55;
  pointer-events: none;
  z-index: 3;
}
.sd-compass svg { width: 100%; height: 100%; }

/* ============================================================
   Header breadcrumb link
   ============================================================ */
.sd-header__breadcrumb {
  color: var(--md-sys-color-on-surface-variant);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
}
.sd-header__breadcrumb:hover {
  color: var(--cc-navy);
  text-decoration: underline;
}
.sd-header__breadcrumb-sep {
  display: inline-block;
  margin: 0 4px;
  color: var(--md-sys-color-outline);
}
.sd-header__breadcrumb-sep svg { vertical-align: middle; }

/* ============================================================
   Freeform — live line length label + vertex dragging
   ============================================================ */
.sd-freeform-length-label {
  position: absolute;
  background: var(--cc-navy);
  color: #fff;
  font-family: var(--sd-font-mono);
  font-size: 11px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
  pointer-events: none;
  white-space: nowrap;
  transform: translate(-50%, -120%);
  z-index: 10;
}
.sd-freeform-toolbar {
  display: flex;
  gap: 8px;
  margin-top: 8px;
  align-items: center;
}
.sd-freeform-toolbar .sd-btn { font-size: 12px; }

/* Utility */
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }