:root {
  --bg: #f4efe7;
  --panel: rgba(255, 250, 245, 0.78);
  --panel-strong: rgba(255, 252, 249, 0.94);
  --ink: #1f1f1b;
  --muted: #5f5a52;
  --line: rgba(31, 31, 27, 0.08);
  --accent: #bc5e3c;
  --accent-deep: #8f3f22;
  --shadow: 0 24px 80px rgba(42, 28, 17, 0.14);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.9), transparent 35%),
    linear-gradient(180deg, #f8f2ea 0%, #efe7db 100%);
}

body {
  position: relative;
  overflow-x: hidden;
}

.background-glow {
  position: fixed;
  border-radius: 999px;
  filter: blur(20px);
  pointer-events: none;
  opacity: 0.7;
}

.background-glow-a {
  top: -8rem;
  right: -4rem;
  width: 22rem;
  height: 22rem;
  background: rgba(188, 94, 60, 0.22);
}

.background-glow-b {
  bottom: -6rem;
  left: -6rem;
  width: 24rem;
  height: 24rem;
  background: rgba(128, 165, 173, 0.22);
}

.app-shell {
  width: min(1200px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.hero {
  max-width: 40rem;
  padding: 1rem 0 2rem;
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--accent-deep);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.4rem, 5vw, 4.8rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.hero-copy {
  max-width: 34rem;
  margin: 1rem 0 0;
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--muted);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(360px, 520px) minmax(320px, 1fr);
  gap: 1.5rem;
  align-items: start;
}

.controls,
.preview-panel {
  backdrop-filter: blur(24px);
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}

.controls {
  padding: 1.4rem;
}

.field-group,
.upload-grid {
  display: grid;
  gap: 1rem;
}

.field {
  display: grid;
  gap: 0.45rem;
  font-size: 0.95rem;
  font-weight: 600;
}

.field span,
.upload-label {
  letter-spacing: -0.02em;
}

.field input {
  width: 100%;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--ink);
  font: inherit;
}

.upload-grid {
  margin-top: 1.1rem;
  grid-template-columns: 1fr;
}

.upload-card {
  display: grid;
  gap: 0.75rem;
  padding: 1rem 1rem 1.1rem;
  border: 1px dashed rgba(31, 31, 27, 0.16);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.65);
}

.upload-card label[for] {
  display: grid;
  gap: 0.2rem;
  cursor: pointer;
}

.upload-hint {
  font-size: 0.85rem;
  color: var(--muted);
}

.upload-card input[type="file"] {
  width: 100%;
  max-width: 100%;
  margin-top: 0;
  font: inherit;
  font-size: 0.92rem;
}

.upload-preview {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 18px;
  background: linear-gradient(145deg, rgba(188, 94, 60, 0.12), rgba(128, 165, 173, 0.12));
  display: none;
}

.upload-preview.is-ready {
  display: block;
}

.editor-preview {
  margin-top: 0.4rem;
}

.editor-preview-frame {
  position: relative;
  overflow: hidden;
  border-radius: 18px;
  background: linear-gradient(145deg, rgba(188, 94, 60, 0.12), rgba(128, 165, 173, 0.12));
  touch-action: none;
  cursor: grab;
  user-select: none;
}

.editor-preview-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 2px solid rgba(255, 255, 255, 0.75);
  border-radius: 18px;
  pointer-events: none;
}

.editor-preview-frame.is-dragging {
  cursor: grabbing;
}

.image-adjustments {
  display: grid;
  gap: 0.7rem;
  margin-top: 0.35rem;
}

.slider-field {
  display: grid;
  gap: 0.3rem;
  font-size: 0.85rem;
  color: var(--muted);
  cursor: default;
}

.slider-field input[type="range"] {
  width: 100%;
}

.reset-adjustment-button {
  appearance: none;
  border: 0;
  border-radius: 12px;
  padding: 0.7rem 0.85rem;
  background: rgba(31, 31, 27, 0.08);
  color: var(--ink);
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  justify-self: start;
}

.tips {
  margin-top: 1.1rem;
  padding: 1rem 1rem 0.25rem;
  border-radius: var(--radius-lg);
  background: rgba(244, 239, 231, 0.9);
}

.tips p {
  margin: 0 0 0.65rem;
  font-weight: 700;
}

.tips ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
  line-height: 1.5;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.2rem;
}

.primary-button,
.secondary-button {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 0.95rem 1.3rem;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform 160ms ease, opacity 160ms ease, background 160ms ease;
}

.primary-button {
  background: var(--accent);
  color: #fff8f3;
}

.secondary-button {
  background: rgba(31, 31, 27, 0.08);
  color: var(--ink);
}

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

.status-message {
  min-height: 1.4rem;
  margin: 0.9rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.preview-panel {
  padding: 1rem;
}

.canvas-frame {
  position: sticky;
  top: 1rem;
  padding: 1rem;
  border-radius: calc(var(--radius-xl) - 6px);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(255, 255, 255, 0.54)),
    linear-gradient(135deg, rgba(188, 94, 60, 0.18), rgba(128, 165, 173, 0.18));
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 28px;
  box-shadow: 0 24px 48px rgba(36, 22, 14, 0.18);
  background: #f3ede6;
}

@media (max-width: 960px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .canvas-frame {
    position: static;
  }
}

@media (max-width: 640px) {
  .app-shell {
    width: min(100% - 1rem, 1200px);
    padding-top: 1rem;
  }

  .hero h1 {
    line-height: 1;
  }

  .controls,
  .preview-panel,
  .canvas-frame,
  canvas {
    border-radius: 24px;
  }
}