@font-face {
  font-family: 'Grain';
  src: url('./font/Grain-Regular.woff2') format('woff2'),
       url('./font/Grain-Regular.woff') format('woff');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

@font-face {
    font-family: 'Grain';
    src: url('./font/Grain-SemiBold.woff2') format('woff2'),
        url('./font/Grain-SemiBold.woff') format('woff');
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}

    :root {
      --color-primary: #000000;
      --color-primary-hover: #000000cc;
      --color-bg: #f7f6f2;
      --color-bg-hover: #0012da0d;
      --color-surface: #ffffff;
      --color-border: #e2e2e2;
      --color-text: #000000;

      --radius-sm: 8px;
      --radius-md: 16px;

      --transition-fast: 0.15s ease;
      --transition-med: 0.25s ease;
      --ui-speed: 180ms;
      --ui-ease: cubic-bezier(.2,.6,.2,1);
    }

    body {
      margin: 0;
      font-family: 'Grain', system-ui, sans-serif;
      background: var(--color-bg);
      color: var(--color-text);
      display: flex;
      height: 100vh;
    }
    #ui {
      width: 300px;
      min-width: 300px;
      flex-shrink: 0;
      background: var(--color-surface);
      padding: 20px;
      box-sizing: border-box;
      overflow-y: auto;
      border-right: 1px solid var(--color-border);
    }

    h3 {
      font-size: 18px;
      letter-spacing: 1px;
      color: var(--color-text);
      margin: 24px 0 16px;
    }

    
    /* Base button style */
    .btn,
    .tab-btn,
    button {
      border: none;
      outline: none;
      background: var(--color-bg);
      color: var(--color-text);
      border-radius: var(--ui-radius-sm);

      border-radius: var(--radius-sm);
      border: 1px solid var(--color-border);
      background: var(--color-surface);
      padding: 8px 16px;

      transition:
        background var(--ui-speed) var(--ui-ease),
        transform var(--ui-speed) var(--ui-ease),
        opacity var(--ui-speed) var(--ui-ease),
        box-shadow var(--ui-speed) var(--ui-ease);

      cursor: pointer;

      font-family: 'Grain', system-ui, sans-serif;
      
    }

    /* Hover state */
    .btn:hover,
    .tab-btn:hover,
    button:hover {
      background: var(--color-bg-hover);
    }

    /* Press feedback */
    .btn:active,
    .tab-btn:active,
    button:active {
      transform: scale(.97);
    }

    /* Focus visible (keyboard) */
    .btn:focus-visible,
    .tab-btn:focus-visible,
    button:focus-visible {
      box-shadow: 0 0 0 2px var(--color-accent);
    }

    button:disabled {
      opacity: 0.5;
      cursor: not-allowed;
    }

    button.primary {
      background: var(--color-primary);
      color: white;
      border-color: var(--color-primary);
    }

    button.primary:hover {
      background:  var(--color-primary-hover);
    }

    /* ============================= */
    /* DRAWING TOOLS – STRUCTURE    */
    /* ============================= */

    #drawingTools {
      align-items: stretch;
      gap: 12px;
      margin-top: 1rem;
      margin-bottom: 0.5rem;
      width: 100%;
    }

    #clearDrawn {
      flex: 0 !important;
    }

    #clearDrawn svg {
      scale: 2.25;
    }

    #drawColorToggle {
      cursor: pointer;
      border-radius: var(--radius-sm);
      border: 1px solid var(--color-border);
    }

    /* Super controls (pencil, color, eraser) */

    .icon-btn,
    .color-toggle {
      width: 42px;
      height: 42px;
      min-width: 42px;
      min-height: 42px;
      flex-shrink: 0;
      box-sizing: border-box;
    }


    #clearScreen svg {
      height: 24px !important;
      width: 24px !important;
    }
    /* Brush spacing container */

    #brushSpacingControl {
      flex: 1;
      display: none;
      min-width: 0; /* critical for flex containment */
    }

    .brush-spacing-wrapper {
      display: flex;
      flex-direction: column;
      gap: 6px;
      height: 100%;
      justify-content: center;
    }

    .brush-spacing-label {
      font-size: 11px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .hint {
      font-size: 10px;
      opacity: 0.5;
    }

    .brush-spacing-controls {
      display: flex;
      gap: 8px;
      align-items: center;
      width: 100%;
    }

    .brush-spacing-controls input[type="range"] {
      flex: 1;
      min-width: 0;
    }

    .brush-spacing-controls input[type="number"] {
      width: 60px;
    }

    input[type="range"] {
      -webkit-appearance: none;
      appearance: none;
      height: 4px;
      background: var(--color-border);
      border-radius: 2px;
      outline: none;
      transition: background var(--transition-fast);
    }

    input[type="range"]:hover {
      background: rgba(0, 18, 218, 0.2);
    }

    input[type="range"]::-webkit-slider-thumb {
      -webkit-appearance: none;
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: var(--color-primary);
      cursor: pointer;
      border: none;
    }

    input[type="range"]::-moz-range-thumb {
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: var(--color-primary);
      border: none;
      cursor: pointer;
    }

    input[type="number"],
    input[type="text"],
    select {
      font-family: inherit;
      font-size: 12px;
      padding: 6px 8px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--color-border);
      background: var(--color-surface);
      transition: border-color var(--transition-fast),
                  box-shadow var(--transition-fast);
    }

    input:focus,
    select:focus {
      outline: none;
      border-color: var(--color-primary);
      box-shadow: 0 0 0 2px rgba(0, 18, 218, 0.1);
    }

    input[type="number"],
    input[type="text"],
    select {
      font-family: inherit;
      font-size: 12px;
      padding: 6px 8px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--color-border);
      background: var(--color-surface);
      transition: border-color var(--transition-fast),
                  box-shadow var(--transition-fast);
    }

    input:focus,
    select:focus {
      outline: none;
      border-color: var(--color-primary);
      box-shadow: 0 0 0 2px rgba(0, 18, 218, 0.1);
    }

    input[type="number"],
    input[type="text"],
    select {
      font-family: inherit;
      font-size: 12px;
      padding: 6px 8px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--color-border);
      background: var(--color-surface);
      transition: border-color var(--transition-fast),
                  box-shadow var(--transition-fast);
    }

    input:focus,
    select:focus {
      outline: none;
      border-color: var(--color-primary);
      box-shadow: 0 0 0 2px rgba(0, 18, 218, 0.1);
    }

    .control {
      margin-bottom: 16px;
    }

    label {
      display: block;
      font-size: 12px;
      margin-bottom: 4px;
    }

    input[type="range"] {
      flex: 1;
    }

    input[type="number"] {
      width: 64px;
      font-size: 12px;
      padding: 2px 4px;
    }

    input[type="color"] {
      width: 100%;
    height: 24px;
      border: none;
      padding: 0;
    }

    .range-pair {
      display: flex;
      gap: 8px;
      align-items: center;
    }

    summary {
      cursor: pointer;
      list-style: none;
    }

    summary h3 {
      display: inline;
    }

    canvas {
      display: block;
    }

    #sidebar {
      display: flex;
      height: 100vh;
    }

    #tabs {
      width: 70px;
      background: var(--color-surface);
      border-right: 1px solid var(--color-border);
      display: flex;
      flex-direction: column;
      align-items: center;
      padding-top: 20px;
      position: relative;
    }

    .tab-btn {
      width: 60px;
      height: 60px;
      margin-bottom: 14px;
      border: none;
      background: transparent;
      border-radius: var(--radius-md);
      cursor: pointer;

      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 4px;

      color: var(--color-text);

      transition:
        color 0.2s cubic-bezier(.4,0,.2,1);

      position: relative;
      z-index: 1;
    }
.tab-btn {
  width: 60px;
  height: 60px;
  margin-bottom: 14px;
  border: none;
  background: transparent;
  border-radius: var(--radius-md);
  cursor: pointer;

  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;

  color: var(--color-text);

  transition:
    background var(--ui-speed) var(--ui-ease),
    color var(--ui-speed) var(--ui-ease),
    transform var(--ui-speed) var(--ui-ease);

  position: relative;
  z-index: 1;
}

.tab-btn.active {
  background: var(--color-bg-active);
      color: white;
    }

.tab-btn:not(.active):hover {
  background: var(--color-bg-hover);
}

    .tab-btn svg {
      width: 20px;
      height: 20px;
      transition:
        transform 0.25s cubic-bezier(.4,0,.2,1),
        opacity 0.2s ease;
    }
    .tab-btn.active svg {
      transform: scale(1.08);
    }

    /* Sliding background */
    #tab-indicator {
      position: absolute;
      width: 60px;
      height: 60px;
      background: var(--color-primary);
      border-radius: var(--radius-md);
      left: 5px;
      top: 0;
      transform: translateY(0);
      transition:
        transform 280ms cubic-bezier(.25,.8,.25,1),
        background 200ms ease;
      z-index: 0;
    }

    #tabs {
      position: relative;
    }

    .tab-panel {
      display: none;
    }

    .tab-panel.active {
      display: block;
    }
    .tab-label {
      font-family: 'Grain', system-ui, sans-serif;
      font-size: 9px;
      letter-spacing: 0.5px;
      transition: opacity 0.2s ease;
      opacity: 0.7;
    }

    .tab-btn.active .tab-label {
      opacity: 1;
    }

    #preset-header {
      padding-bottom: 12px;
      margin-bottom: 12px;
      border-bottom: 1px solid #ddd;
    }

    #preset-name-wrapper {
      display: flex;
      align-items: center;
      gap: 8px;
      position: relative;
    }

    #preset-name-wrapper input {
      padding-left: 0.5rem;
      margin-left: -0.5rem;
      margin-right: -1.75rem;
    }

    #preset-name-wrapper svg {
      min-width: 16px;
    }

    

    #presetName {
      flex: 1;
      font-size: 20px;
      font-weight: 600;
      border: none;
      border-bottom: 1px solid transparent;
      background: transparent;
      outline: none;
      letter-spacing: 0.5px;
      padding: 4px 0;
    }

    #presetName:focus {
    }

    /* Edit icon only visible on hover or focus */
    #preset-edit-icon {
      opacity: 0;
      transition: opacity 0.15s ease;
      pointer-events: none;
    }

    #preset-name-wrapper:hover #preset-edit-icon,
    #presetName:focus + #preset-edit-icon {
      opacity: 0.6;
    }

    .media-btn {
      width: 40px;
      height: 40px;
      border: 1px solid #ccc;
      background: #fff;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0;
      transition: background 0.15s ease, opacity 0.2s ease;
    }

    .media-btn:hover {
      background: #eee;
    }

    .media-btn:disabled {
      opacity: 0.5;
      cursor: not-allowed;
    }

    .media-btn svg {
      overflow: visible;
    }

    #pauseGroup,
    #playGroup {
      fill: currentColor;
      transform-origin: center;
      transition: opacity 0.2s ease, transform 0.2s ease;
    }

    .hidden {
      opacity: 0;
      transform: scale(0.8);
    }

    .visible {
      opacity: 1;
      transform: scale(1);
    }

    #ui.exporting {
      opacity: 0.6;
      pointer-events: none;
    }

    #exportProgress {
      width: 100%;
      height: 6px;
      background: #ddd;
      margin-top: 8px;
    }

    #progressBar {
      height: 100%;
      width: 0%;
      background: #28a745;
      transition: width 0.1s linear;
    }
    #client-logo {
      margin-bottom: 30px;
      display: flex;
      justify-content: center;
    }

    .logo-placeholder {
      width: 44px;
      height: 44px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 9px;
      letter-spacing: 1px;
      color: var(--color-text);
    }

    #global-controls {
      display: flex;
      flex-wrap: wrap;
      gap: 0px;
      margin: 0;
      margin-bottom: -1.5rem !important;
    }

    #global-controls button {
      flex: 1;
    }

    #global-controls button {
      width: calc(25% - 0.5rem);
    }

    .ui-divider {
      border: none;
      height: 1px;
      background: var(--color-border);
      margin: 0 0 16px;
    }

    #global-controls {
      display: flex;
      gap: 10px;
      margin: 16px 0 16px;
    }

    .icon-btn {
      width: 42px;
      height: 42px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--color-border);
      background: var(--color-surface);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: 
        background var(--transition-fast),
        border-color var(--transition-fast),
        color var(--transition-fast);
      color: var(--color-text);
    }

    .icon-btn svg {
      width: 32px;
      height: 32px;
    }

    .icon-btn:hover {
      border-color: var(--color-primary);
    }

    .icon-btn.active {
      background: var(--color-primary);
      color: white;
      border-color: var(--color-primary);
    }

    .drawing-row {
      display: flex;
      gap: 10px;
      align-items: center;
    }

    .brush-controls {
      margin-top: 14px;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .control-block label {
      font-size: 11px;
      display: flex;
      justify-content: space-between;
    }

    #brushSettings>.control:nth-child(2) {
      padding-bottom: 1.75rem !important;
    }

    /* ============================= */
    /* Animated Brush Controls       */
    /* ============================= */

    #drawingTools,
    #brushSettings {
      overflow: hidden;
      max-height: 0;
      opacity: 0;
      transform: translateY(-6px);
      transition:
        max-height 0.35s cubic-bezier(.25,.8,.25,1),
        opacity 0.25s ease,
        transform 0.25s ease;
    }

    /* Open state */
    #drawingTools.open,
    #brushSettings.open {
      max-height: 300px; /* large enough for content */
      opacity: 1;
      transform: translateY(0);
    }

    /* ============================= */
    /* Slider Labels with Hints      */
    /* ============================= */

    .slider-label {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
    }

    .slider-label .value {
      font-weight: 600;
      font-size: 11px;
      opacity: 0.8;
    }
    /* ============================= */
    /* Custom Checkbox               */
    /* ============================= */

    input[type="checkbox"] {
      appearance: none;
      -webkit-appearance: none;
      width: 18px;
      height: 18px;
      border-radius: 5px;
      border: 1px solid var(--color-border);
      background: var(--color-surface);
      cursor: pointer;
      position: relative;
      transition:
        background 0.15s ease,
        border-color 0.15s ease;
      margin-right: 8px;
      vertical-align: middle;
      top: -1px;
    }

    input[type="checkbox"]:hover {
      border-color: var(--color-primary);
    }

    input[type="checkbox"]:checked {
      background: var(--color-primary);
      border-color: var(--color-primary);
    }

    input[type="checkbox"]:checked::after {
      content: "";
      position: absolute;
      left: 5px;
      top: 1px;
      width: 4px;
      height: 9px;
      border: solid white;
      border-width: 0 2px 2px 0;
      transform: rotate(45deg);
    }

    label input[type="checkbox"] {
      display: inline-block;
    }

    /* Slightly tighter controls in Lines tab */
    #tab-lines .control {
      margin-bottom: 14px;
    }

    /* ============================= */
    /* Export Layout                 */
    /* ============================= */

    .export-actions {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .icon-text-btn {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-weight: 600;
    }

    .icon-text-btn svg {
      width: 18px;
      height: 18px;
    }

    /* Video group */

    .video-export-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    /* ============================= */
    /* Seconds Field – Full Width    */
    /* ============================= */

    .seconds-field {
      display: flex;
      justify-content: space-between;
      align-items: center;

      margin-top: 1rem;

      width: 100%;
      box-sizing: border-box;

      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      padding: 10px 12px;
      background: var(--color-surface);
    }

    /* Left text block */
    .seconds-field .seconds-label {
      display: flex;
      flex-direction: column;
      font-size: 14px;
    }

    .seconds-field .seconds-label .hint {
      font-size: 11px;
      opacity: 0.5;
      margin-top: 2px;
    }

    /* Right input block */
    .seconds-input-group {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .seconds-input-group input {
      width: 70px;
      border: none;
      outline: none;
      background: transparent;

      font-size: 14px;
      font-weight: 600;
      text-align: right;
    }

    .seconds-input-group .unit {
      font-size: 12px;
      opacity: 0.6;
    }

    /* ============================= */
    /* Unified Field Card System     */
    /* ============================= */

    .field-card {
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      padding: 12px;
      background: var(--color-surface);
      display: flex;
      flex-direction: column;
      gap: 10px;
      transition: border-color var(--transition-fast),
                  box-shadow var(--transition-fast);
    }

    .field-card:hover {
      border-color: var(--color-primary);
    }

    .field-header {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
    }

    .field-label {
      display: flex;
      flex-direction: column;
      font-size: 14px;
    }

    .field-label .hint {
      font-size: 11px;
      opacity: 0.5;
      margin-top: 2px;
    }

    .field-value {
      font-size: 14px;
      font-weight: 600;
      opacity: 0.85;
    }

    .field-range {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .field-range input[type="range"] {
      flex: 1;
    }

    .field-range input[type="number"] {
      width: 70px;
      text-align: right;
    }

    /* ============================= */
/* Setup Tab – Structured Fields */
/* ============================= */

.setup-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.dialog p {
  white-space: pre-line;
}
.field-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 14px 14px 12px;
  background: var(--color-surface);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.field-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.field-label {
  display: flex;
  flex-direction: column;
  font-size: 14px;
}

.field-label .hint {
  font-size: 11px;
  opacity: 0.5;
  margin-top: 2px;
}

.field-value {
  font-weight: 600;
  font-size: 13px;
  opacity: 0.8;
}

.field-row {
  display: flex;
  gap: 10px;
  align-items: center;
}

.field-row input[type="number"],
.field-row select {
  flex: 1;
}

.field-actions {
  display: flex;
  gap: 10px;
}

.field-actions button {
  flex: 1;
}

.color-field {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  background: var(--color-surface);
}

.color-field input[type="color"] {
  width: 40px;
  height: 30px;
  border-radius: 6px;
  border: none;
  cursor: pointer;
}

/* Preset action row */
.preset-actions {
  display: flex;
  gap: 10px;
}

.preset-actions button {
  flex: 1;
}

/* Two-color layout */
.color-dual {
  display: flex;
  gap: 16px;
}

.color-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.color-swatch-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  background: var(--color-surface);
  font-size: 14px;
}
.color-swatch-row span {
  margin-right: 0.5rem;

}
.confirm-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 1000;
}

.confirm-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.confirm-modal {
  background: var(--color-surface);
  padding: 2rem 3rem;
  border-radius: var(--radius-md);
  width: 320px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.confirm-actions {
  display: flex;
  gap: 10px;
}

.confirm-actions button {
  flex: 1;
}

#previewCanvas {
  pointer-events: none;
  z-index: 10;
}
#canvas-holder {
  position: relative;
  flex: 1;
  overflow: hidden;

  display: flex;
  align-items: center;
  justify-content: center;

  background: #111111dd;
}
#zoomIndicator {
  opacity: 0;
  transition: opacity 0.2s ease;
}

    #canvas-viewport {
  position: relative;
      top: 0;
      left: 0;
    transform-origin: top left;
    }

#zoomIndicator {
  position: absolute;
  bottom: 12px;
  left: 12px;
  padding: 6px 10px;
  font-size: 12px;
  font-family: monospace;
  background: rgba(0, 0, 0, 0.6);
  color: white;
  border-radius: 6px;
  pointer-events: none;
  user-select: none;
}

#canvas-viewport canvas {
  position: absolute;
  top: 0;
  left: 0;
}



#previewCanvas {
  pointer-events: none;
  z-index: 10;
}
.fullscreen-btn {
  position: absolute;
  bottom: 20px;
  right: 20px;

  width: 48px;
  height: 48px;

  border: none;
  border-radius: 10px;

  background: rgba(0,0,0,0.6);
  color: white;

  font-size: 18px;
  cursor: pointer;

  backdrop-filter: blur(6px);

  transition:
    background 160ms ease,
    transform 160ms ease,
    opacity 200ms ease;

  z-index: 50;
}

.fullscreen-btn:hover {
  background: rgba(0,0,0,0.8);
  transform: scale(1.05);
}

.fullscreen-btn:active {
  transform: scale(.95);
}
#exportOverlay {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(6px);
  z-index: 2000;
}

#exportOverlay.open {
  display: flex;
}

#exportBox {
  background: var(--color-surface);
  padding: 24px;
  border-radius: var(--radius-md);
  width: 320px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
  text-align: center;
  color: var(--color-text);
}

#exportText {
  margin-bottom: 16px;
  font-size: 14px;
  letter-spacing: 0.5px;
}

#progressTrack {
  width: 100%;
  height: 8px;
  background: var(--color-border);
  border-radius: 6px;
  overflow: hidden;
}

#progressBar {
  width: 0%;
  height: 100%;
  background: var(--color-primary);
  transition: width 0.1s linear;
}