:root {
  color-scheme: light;
  --ink: #181716;
  --muted: #6f6a63;
  --line: #ded8cf;
  --panel: #fffdf8;
  --canvas-bg: #f7f4ee;
  --accent: #1c6f6a;
  --accent-strong: #124f4c;
  --blue: #253f7a;
  --rose: #b95767;
  --shadow: 0 18px 50px rgba(24, 23, 22, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(28, 111, 106, 0.12), transparent 34%),
    linear-gradient(315deg, rgba(185, 87, 103, 0.12), transparent 30%),
    #f3efe7;
}

button,
input {
  font: inherit;
}

html {
  -webkit-text-size-adjust: 100%;
}

.app-shell {
  min-height: 100vh;
  padding: clamp(16px, 4vw, 42px);
  display: grid;
  place-items: center;
}

.workspace {
  width: min(1180px, 100%);
  display: grid;
  grid-template-columns: minmax(340px, 1fr) minmax(320px, 400px);
  gap: clamp(18px, 3vw, 34px);
  align-items: stretch;
}

.preview-panel {
  display: grid;
  grid-template-rows: auto auto;
  gap: 14px;
  align-content: center;
  min-width: 0;
}

.canvas-wrap {
  width: min(100%, 62vh);
  aspect-ratio: 4 / 5;
  justify-self: center;
  align-self: center;
  border: 1px solid rgba(24, 23, 22, 0.13);
  background: #f7f4ee;
  box-shadow: var(--shadow);
  display: grid;
  place-items: center;
  overflow: hidden;
}

canvas {
  width: 100%;
  height: 100%;
  display: block;
  background: var(--canvas-bg);
  cursor: grab;
  touch-action: none;
  user-select: none;
}

canvas.dragging {
  cursor: grabbing;
}

.preview-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 0.88rem;
}

.mobile-quick-upload {
  display: none;
}

.control-panel {
  background: var(--panel);
  border: 1px solid rgba(24, 23, 22, 0.1);
  box-shadow: var(--shadow);
  padding: clamp(18px, 3vw, 26px);
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
}

.panel-header {
  display: grid;
  gap: 4px;
}

.eyebrow,
.label {
  margin: 0;
  font-size: 0.76rem;
  font-weight: 760;
  letter-spacing: 0;
  color: var(--accent-strong);
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 0.94;
  letter-spacing: 0;
}

.drop-zone {
  min-height: 154px;
  border: 1.5px dashed #aaa196;
  background: #faf7f0;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 8px;
  padding: 20px;
  cursor: pointer;
  transition:
    border-color 160ms ease,
    background 160ms ease,
    transform 160ms ease;
}

.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--accent);
  background: #eef7f4;
}

.drop-zone:active {
  transform: translateY(1px);
}

.drop-zone input {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
  pointer-events: none;
}

.drop-zone strong {
  font-size: 1.05rem;
}

.drop-zone small,
.status {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.upload-icon {
  width: 42px;
  height: 42px;
  border: 2px solid var(--accent);
  position: relative;
  display: inline-block;
}

.upload-icon::before,
.upload-icon::after {
  content: "";
  position: absolute;
  background: var(--accent);
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.upload-icon::before {
  width: 20px;
  height: 2px;
}

.upload-icon::after {
  width: 2px;
  height: 20px;
}

.thumb-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  min-height: 84px;
}

.thumb-card {
  min-width: 0;
  display: grid;
  gap: 4px;
  border: 2px solid transparent;
  padding: 2px;
}

.thumb-card.selected {
  border-color: var(--accent);
}

.thumb-button {
  aspect-ratio: 1;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: pointer;
  min-width: 0;
}

.thumb {
  aspect-ratio: 1;
  border: 1px solid var(--line);
  background: #eee8df;
  object-fit: cover;
  width: 100%;
  height: 100%;
  min-width: 0;
  display: block;
}

.thumb-tools {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 3px;
}

.thumb-tools button {
  min-width: 0;
  min-height: 26px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 760;
  padding: 0;
}

.thumb-tools button:hover {
  border-color: var(--accent);
}

.thumb-tools button:disabled {
  color: #aaa39a;
  background: #f0ece5;
  cursor: not-allowed;
}

.section {
  display: grid;
  gap: 10px;
}

.segmented {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.layout-segmented {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.format-segmented {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.segment,
.primary-button,
.secondary-button,
.ghost-button {
  min-height: 44px;
  border: 1px solid var(--line);
  background: #ffffff;
  color: var(--ink);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  font-weight: 720;
  transition:
    background 140ms ease,
    border-color 140ms ease,
    color 140ms ease,
    transform 140ms ease;
}

.segment:hover,
.ghost-button:hover {
  border-color: var(--accent);
}

.segment.active {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}

.layout-icon {
  width: 18px;
  height: 18px;
  border: 2px solid currentColor;
  display: inline-block;
  position: relative;
}

.layout-icon::after {
  content: "";
  position: absolute;
  background: currentColor;
}

.layout-icon.vertical::after {
  left: 0;
  right: 0;
  top: calc(50% - 1px);
  height: 2px;
}

.layout-icon.horizontal::after {
  top: 0;
  bottom: 0;
  left: calc(50% - 1px);
  width: 2px;
}

.layout-icon.grid::before,
.layout-icon.grid::after {
  content: "";
  position: absolute;
  background: currentColor;
}

.layout-icon.grid::before {
  top: 0;
  bottom: 0;
  left: calc(50% - 1px);
  width: 2px;
}

.layout-icon.grid::after {
  left: 0;
  right: 0;
  top: calc(50% - 1px);
  height: 2px;
}

.grid-two {
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 16px;
}

.field {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 12px;
  align-items: center;
}

.field span {
  font-size: 0.9rem;
  font-weight: 720;
}

.field input[type="range"] {
  grid-column: 1 / -1;
  accent-color: var(--accent);
  width: 100%;
}

.field input[type="color"] {
  inline-size: 54px;
  block-size: 44px;
  padding: 2px;
  border: 1px solid var(--line);
  background: #fff;
}

.caption-panel {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
}

.text-field {
  grid-template-columns: 1fr;
}

.text-field input,
.field select,
.caption-output {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
}

.text-field input,
.field select {
  min-height: 42px;
  padding: 0 10px;
}

.caption-options,
.caption-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.caption-options .field {
  grid-template-columns: 1fr;
}

.caption-output {
  resize: vertical;
  min-height: 130px;
  padding: 10px;
  line-height: 1.55;
}

.actions {
  margin-top: auto;
  display: grid;
  grid-template-columns: 0.9fr 1.15fr 1.15fr;
  gap: 10px;
}

.primary-button {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

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

.secondary-button {
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
}

.secondary-button:hover {
  background: #1b2f5c;
  border-color: #1b2f5c;
}

.primary-button:disabled,
.secondary-button:disabled {
  background: #bfc7c4;
  border-color: #bfc7c4;
  cursor: not-allowed;
}

.ghost-button {
  background: transparent;
}

.segment:active,
.primary-button:active,
.secondary-button:active,
.ghost-button:active {
  transform: translateY(1px);
}

.status {
  min-height: 1.5em;
  font-size: 0.92rem;
}

@media (max-width: 860px) {
  .app-shell {
    min-height: auto;
    padding: 12px 12px calc(18px + env(safe-area-inset-bottom));
    place-items: start center;
  }

  .workspace {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .preview-panel {
    order: 1;
    position: sticky;
    top: 0;
    z-index: 3;
    background: rgba(243, 239, 231, 0.94);
    border-bottom: 1px solid rgba(24, 23, 22, 0.08);
    padding: 6px 0 10px;
  }

  .control-panel {
    order: 2;
    padding: 16px;
    gap: 14px;
    box-shadow: none;
  }

  .panel-header {
    display: none;
  }

  .canvas-wrap {
    width: auto;
    height: min(54vh, 520px);
    max-width: 100%;
  }

  canvas {
    width: 100%;
    height: 100%;
  }

  .preview-meta {
    font-size: 0.82rem;
  }

  .mobile-quick-upload {
    min-height: 44px;
    border: 1px solid var(--accent);
    background: var(--accent);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    justify-self: center;
    padding: 0 18px;
    font-weight: 760;
    cursor: pointer;
  }

  .drop-zone {
    min-height: 108px;
    padding: 14px;
  }

  .upload-icon {
    width: 34px;
    height: 34px;
  }

  .thumb-strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .segment,
  .primary-button,
  .secondary-button,
  .ghost-button {
    min-height: 48px;
  }

  .actions {
    position: sticky;
    bottom: 0;
    z-index: 2;
    background: var(--panel);
    border-top: 1px solid var(--line);
    padding-top: 10px;
    padding-bottom: env(safe-area-inset-bottom);
  }

  .caption-output {
    min-height: 112px;
  }
}

@media (max-width: 460px) {
  .app-shell {
    padding: 12px;
  }

  .control-panel {
    padding: 14px;
  }

  .thumb-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .format-segmented {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .layout-segmented {
    grid-template-columns: 1fr;
  }

  .canvas-wrap {
    height: min(50vh, 460px);
  }

  .actions,
  .grid-two,
  .caption-options,
  .caption-actions {
    grid-template-columns: 1fr;
  }
}