/*
 * Collage builder styles.
 * Pictorem-branded, responsive 320px -> 4K. All collage cell geometry is set
 * inline by the layout engine (collage-editor-raw.js); this file styles the
 * surrounding chrome, panels, tray, controls and the canvas frame.
 */

:root {
  --collage-accent: #de256f;
  --collage-accent-dark: #b81a59;
  --collage-ink: #202020;
  --collage-muted: #6b7280;
  --collage-line: #e5e7eb;
  --collage-bg: #f5f6f8;
}

/* Clears the fixed site header. */
.collage-header-spacer {
  height: 90px;
}

@media (min-width: 992px) {
  .collage-header-spacer {
    height: 140px;
  }
}

/* ---- Hero ---- */
.collage-hero {
  text-align: center;
  padding: 18px 16px 8px;
}

.collage-hero-title {
  font-weight: 700;
  font-size: clamp(26px, 4vw, 44px);
  color: var(--collage-ink);
  margin: 0 0 8px;
}

.collage-hero-sub {
  color: var(--collage-muted);
  max-width: 720px;
  margin: 0 auto 18px;
  font-size: clamp(14px, 1.4vw, 17px);
}

.collage-steps {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin-bottom: 6px;
}

.collage-step {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--collage-ink);
  font-weight: 600;
  font-size: 14px;
}

.collage-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--collage-accent);
  color: #fff;
  font-size: 13px;
}

/* ---- Layout shell ---- */
.collage-shell {
  max-width: 1800px;
  margin: 0 auto;
  padding: 12px 16px 60px;
}

.collage-panel {
  background: #fff;
  border: 1px solid var(--collage-line);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.05);
}

@media (min-width: 992px) {
  .collage-panel {
    position: sticky;
    top: 90px;
    max-height: calc(100vh - 110px);
    overflow-y: auto;
  }
}

.collage-panel-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--collage-ink);
  margin: 0 0 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.collage-panel-title i {
  color: var(--collage-accent);
}

.collage-panel-title-mt {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--collage-line);
}

/* ---- Uploader / tray ---- */
#collage-uploader {
  margin-bottom: 10px;
}

.collage-upload-status {
  font-size: 12px;
  color: var(--collage-muted);
  min-height: 16px;
  margin-bottom: 6px;
}

.collage-tray-head {
  font-size: 13px;
  font-weight: 600;
  color: var(--collage-ink);
  margin: 4px 0 8px;
}

.collage-tray {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  max-height: 320px;
  overflow-y: auto;
}

.collage-thumb {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: 8px;
  overflow: hidden;
  background: var(--collage-bg);
  cursor: grab;
  border: 2px solid transparent;
}

.collage-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
}

.collage-thumb-remove {
  position: absolute;
  top: 3px;
  right: 3px;
  width: 22px;
  height: 22px;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  display: none;
}

.collage-thumb:hover .collage-thumb-remove {
  display: block;
}

/* ---- Stage / canvas ---- */
.collage-stage {
  background: #fff;
  border: 1px solid var(--collage-line);
  border-radius: 14px;
  padding: 18px;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.05);
}

.collage-canvas-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
}

.collage-canvas {
  position: relative;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
  max-width: 100%;
}

/* Inner wrapper that shape masks (heart/circle) clip. */
.collage-cells {
  position: absolute;
  inset: 0;
}

.collage-cell {
  position: absolute;
  overflow: hidden;
  box-sizing: border-box;
}

.collage-cell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* White photo frame for polaroid / tilted / scatter styles. */
.collage-cell.is-frame {
  background: #fff;
  padding: 5%;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.28);
}

.collage-cell.is-frame img {
  border-radius: 0;
}

/* Hidden SVG holding the heart clip path. */
.collage-svg-defs {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.collage-empty {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--collage-muted);
  text-align: center;
  padding: 20px;
}

.collage-empty i {
  font-size: 46px;
  margin-bottom: 12px;
  color: var(--collage-line);
}

.collage-stage-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 16px;
  flex-wrap: wrap;
}

/* ---- Buttons ---- */
.btn-collage-primary,
.btn-collage-cta {
  border: none;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.05s ease;
}

.btn-collage-primary {
  background: var(--collage-ink);
  color: #fff;
  padding: 10px 22px;
  font-size: 15px;
}

.btn-collage-primary:hover {
  background: #000;
}

.btn-collage-primary:active {
  transform: translateY(1px);
}

.btn-collage-cta {
  background: var(--collage-accent);
  color: #fff;
  padding: 12px 18px;
  width: 100%;
  font-size: 15px;
  margin-top: 10px;
}

.btn-collage-cta:hover:not(:disabled) {
  background: var(--collage-accent-dark);
}

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

/* ---- Controls ---- */
.collage-control-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--collage-muted);
  margin: 16px 0 6px;
}

.collage-template-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.collage-template-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  padding: 10px 4px;
  border: 1px solid var(--collage-line);
  border-radius: 10px;
  background: #fff;
  color: var(--collage-ink);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.collage-template-btn i {
  font-size: 18px;
  color: var(--collage-muted);
}

.collage-template-btn:hover {
  border-color: var(--collage-accent);
}

.collage-template-btn.is-active {
  border-color: var(--collage-accent);
  background: rgba(222, 37, 111, 0.07);
}

.collage-template-btn.is-active i {
  color: var(--collage-accent);
}

.collage-color {
  width: 100%;
  height: 38px;
  padding: 2px;
  border: 1px solid var(--collage-line);
  border-radius: 8px;
  cursor: pointer;
}

.collage-check {
  margin-top: 16px;
}

.collage-print-note {
  font-size: 12px;
  color: var(--collage-muted);
  margin: 0;
}

/* Shown only while the server is compositing the print. */
.collage-render-status {
  display: none;
  margin: 10px 0 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--collage-accent-dark);
}

.collage-render-status.is-visible {
  display: block;
}

/* Accent the range sliders. */
.form-range::-webkit-slider-thumb {
  background: var(--collage-accent);
}

.form-range::-moz-range-thumb {
  background: var(--collage-accent);
}

/* Drop target highlight while dragging a tray photo onto a cell. */
.collage-cell.is-drop-target {
  outline: 3px dashed var(--collage-accent);
  outline-offset: -3px;
}