dkdc-draw-webapp 0.1.0

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  /* Zorto-aligned dark palette */
  --bg: #0a0f1a;
  --surface: #101824;
  --surface-2: #172033;
  --border: rgba(59, 130, 246, 0.12);
  --text: #e2e8f0;
  --text-muted: rgba(226, 232, 240, 0.5);
  --text-dim: rgba(226, 232, 240, 0.45);
  --accent: #3b82f6;
  --accent-soft: rgba(59, 130, 246, 0.15);
  --danger: #ef4444;
  --success: #34d399;
  --status-height: 28px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 13px;
  overflow: hidden;
  height: 100vh;
  width: 100vw;
  user-select: none;
  -webkit-user-select: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Floating Toolbar ──────────────────────────────────────────────── */

#toolbar-wrapper {
  position: fixed;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  pointer-events: none;
  max-width: calc(100vw - 16px);
  overflow-x: auto;
}

#toolbar {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 6px;
  pointer-events: auto;
  flex-wrap: nowrap;
  background: rgba(30, 30, 40, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  box-shadow:
    0 2px 8px rgba(0, 0, 0, 0.3),
    0 12px 40px rgba(0, 0, 0, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.tool-group,
.style-group,
.action-group {
  display: flex;
  align-items: center;
  gap: 2px;
}

.separator {
  width: 1px;
  height: 22px;
  background: rgba(255, 255, 255, 0.07);
  margin: 0 6px;
  flex-shrink: 0;
}

/* ── Tool Buttons ──────────────────────────────────────────────────── */

.tool-btn {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
  position: relative;
}

.tool-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.tool-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
  box-shadow:
    0 1px 4px rgba(74, 158, 255, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.tool-btn.active:hover {
  background: #5aa8ff;
}

.tool-btn svg {
  flex-shrink: 0;
}

/* ── Style Controls ────────────────────────────────────────────────── */

.style-group {
  gap: 4px;
}

.style-group label {
  display: flex;
  align-items: center;
  gap: 0;
}

.color-picker-wrap {
  position: relative;
  flex-shrink: 0;
}

.color-swatch {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  border: 2px solid rgba(255, 255, 255, 0.1);
  cursor: pointer;
  background: #3b82f6;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  padding: 0;
  flex-shrink: 0;
}

.color-swatch:hover {
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.color-hidden {
  position: absolute;
  width: 0;
  height: 0;
  opacity: 0;
  pointer-events: none;
}

/* ── Color Palette Popover ────────────────────────────────────────── */

.color-palette {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
  z-index: 400;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 2px 8px rgba(0, 0, 0, 0.2);
  min-width: 160px;
  max-height: calc(100vh - 80px);
  overflow-y: auto;
}

.color-palette-dot {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: border-color 0.1s ease, transform 0.1s ease;
  padding: 0;
  position: relative;
}

.color-palette-dot:hover {
  border-color: rgba(255, 255, 255, 0.4);
  transform: scale(1.15);
}

.color-palette-dot.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.color-palette-dot.transparent-dot {
  background: var(--surface-2) !important;
}

.color-palette-dot.transparent-dot::after {
  content: '';
  position: absolute;
  inset: 3px;
  border-top: 2px solid var(--danger);
  transform: rotate(-45deg);
  transform-origin: center;
}

.color-palette-custom {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
  padding-top: 6px;
  border-top: 1px solid var(--border);
}

.color-palette-custom-btn {
  flex: 1;
  height: 28px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-muted);
  font-size: 11px;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s ease;
}

.color-palette-custom-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

/* No-fill toggle button */
.no-fill-btn {
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
  flex-shrink: 0;
  padding: 0;
}

.no-fill-btn:hover {
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--text);
}

.no-fill-btn.active {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

/* Hidden checkbox for no-fill state */
#no-fill {
  display: none;
}

.style-group select {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  padding: 5px 8px;
  font-size: 11px;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s ease;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='8' height='5' viewBox='0 0 8 5' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L4 4L7 1' stroke='%237a7a8c' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 6px center;
  padding-right: 20px;
}

.style-group select:hover {
  border-color: rgba(255, 255, 255, 0.15);
  background-color: rgba(255, 255, 255, 0.06);
}

.style-group select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

/* ── Range Slider ─────────────────────────────────────────────────── */

.style-group input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 60px;
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

.style-group input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text);
  border: 2px solid var(--surface);
  cursor: pointer;
  transition: background 0.15s ease;
}

.style-group input[type="range"]::-webkit-slider-thumb:hover {
  background: var(--accent);
}

.style-group input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text);
  border: 2px solid var(--surface);
  cursor: pointer;
  transition: background 0.15s ease;
}

.style-group input[type="range"]::-moz-range-thumb:hover {
  background: var(--accent);
}

.style-group input[type="range"]::-moz-range-track {
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
}

/* ── Action Buttons ────────────────────────────────────────────────── */

.action-group button,
.action-btn {
  height: 34px;
  padding: 0 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: transparent;
  color: var(--text-muted);
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  font-size: 12px;
  font-family: inherit;
  font-weight: 500;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.action-group button:hover,
.action-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.action-group button svg,
.action-btn svg {
  flex-shrink: 0;
}

.action-btn.icon-only {
  width: 34px;
  padding: 0;
}

.action-btn:disabled {
  opacity: 0.3;
  cursor: default;
  pointer-events: none;
}

/* ── Zoom Indicator ────────────────────────────────────────────────── */

#zoom-btn {
  min-width: 48px;
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  color: var(--text-dim);
  cursor: pointer;
}

#zoom-btn:hover {
  color: var(--text);
}

/* ── Canvas ────────────────────────────────────────────────────────── */

#canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: calc(100vh - var(--status-height));
  cursor: crosshair;
}

/* ── Status Bar ────────────────────────────────────────────────────── */

#status-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--status-height);
  background: rgba(15, 15, 20, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 16px;
  font-size: 11px;
  color: var(--text-dim);
  z-index: 100;
}

#status-bar span {
  white-space: nowrap;
}

#status-name {
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 3px;
  transition: all 0.15s ease;
}

#status-name:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.status-sep {
  color: var(--text-dim);
  opacity: 0.4;
}

#status-saved {
  margin-left: auto;
  transition: color 0.2s ease;
}

#status-saved.saved {
  color: var(--success);
}

#status-saved.error {
  color: var(--danger);
}

/* ── Text Input Overlay ────────────────────────────────────────────── */

.text-input-overlay {
  position: fixed;
  z-index: 200;
}

.text-input-overlay textarea {
  background: rgba(24, 24, 31, 0.9);
  border: 1.5px solid var(--accent);
  border-radius: 4px;
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 500;
  padding: 6px 8px;
  resize: none;
  outline: none;
  min-width: 120px;
  min-height: 32px;
  line-height: 1.2;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3), 0 0 0 3px var(--accent-soft);
}

.text-input-overlay.text-input-centered {
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.text-input-overlay.text-input-centered textarea {
  pointer-events: auto;
  width: 90%;
  max-height: 80%;
  text-align: center;
  min-width: unset;
  min-height: unset;
  border: none;
  border-radius: 4px;
  background: rgba(74, 158, 255, 0.08);
  box-shadow: none;
}

/* Tooltips use native title attributes — CSS tooltips caused layout
   issues inside the backdrop-filter toolbar with overflow-x: auto. */

/* ── Control Row Labels ───────────────────────────────────────────── */

.control-row {
  display: flex;
  align-items: center;
  gap: 3px;
}

.control-label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  min-width: 32px;
}

.control-value {
  font-size: 10px;
  color: var(--text-dim);
  min-width: 28px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* ── Help Overlay ─────────────────────────────────────────────────── */

#help-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
}

.help-content {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px 32px;
  max-width: 480px;
  box-shadow: 0 16px 64px rgba(0,0,0,0.4);
}

.help-content h3 {
  margin-bottom: 16px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.help-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 24px;
  font-size: 13px;
  color: var(--text-muted);
}

.help-grid kbd {
  display: inline-block;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px;
  padding: 1px 6px;
  font-family: inherit;
  font-size: 11px;
  color: var(--text);
  min-width: 24px;
  text-align: center;
  margin-right: 6px;
}

.help-dismiss {
  margin-top: 16px;
  font-size: 12px;
  color: var(--text-dim);
  text-align: center;
}

/* ── Context Menu ─────────────────────────────────────────────────── */

.context-menu {
  position: fixed;
  z-index: 600;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px;
  min-width: 200px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 2px 8px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(16px);
}

.context-menu-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 6px 12px;
  background: none;
  border: none;
  border-radius: 4px;
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.1s ease;
  text-align: left;
}

.context-menu-item:hover:not(:disabled) {
  background: var(--accent-soft);
}

.context-menu-item:disabled {
  color: var(--text-dim);
  cursor: default;
}

.context-menu-shortcut {
  font-size: 11px;
  color: var(--text-dim);
  margin-left: 16px;
}

.context-menu-sep {
  height: 1px;
  background: var(--border);
  margin: 4px 8px;
}

/* ── Scrollbar ─────────────────────────────────────────────────────── */

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}