* {
  box-sizing: border-box;
}

:root {
  --bg: #f4f4f4;
  --surface: #ffffff;
  --surface-soft: #f7efe8;
  --text: #4a4a4a;
  --muted: #a4a4a4;
  --line: #e8e8e8;
  --neutral-300: #c2c2c2;
  --neutral-700: #777777;
  --neutral-800: #595959;
  --neutral-1000: #333333;
  --primary-100: #f1c2ab;
  --primary-200: #ff9256;
  --primary: #ff5c02;
  --primary-400: #c74700;
  --primary-500: #8d3200;
  --primary-soft: #ffc9ab;
  --secondary-100: #bca8e7;
  --secondary-300: #5800ff;
  --secondary-400: #3f08c6;
  --secondary-500: #2a0690;
  --danger: #fb3748;
  --danger-strong: #dc0818;
  --warning: #f3d743;
  --warning-strong: #d4b400;
  --success: #84d6a4;
  --success-strong: #1fc16b;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --space-0: 0;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 32px;
  --space-8: 40px;
  --space-9: 48px;
  --space-10: 56px;
  --shadow: 0 2px 4px rgba(27, 28, 29, 0.08);
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", sans-serif;
  background: #ffc9ab;
  color: var(--text);
}

.shell {
  max-width: 1240px;
  margin: 0 auto;
  padding: var(--space-9) var(--space-4);
}

.panel {
  background: linear-gradient(140deg, #ffd9c3 0%, #ffd2b8 55%, #f8d0cf 100%);
  border-radius: var(--radius-lg);
  padding: var(--space-7);
  border: 1px solid #f2bfa0;
}

.panel-header h1 {
  margin: 0;
  font-weight: 700;
  font-size: 52px;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: #2f2f2f;
  text-wrap: balance;
}

.panel-header p {
  margin: var(--space-2) 0 0;
  color: #4a4a4a;
  font-size: 22px;
  line-height: 1.4;
  font-weight: 500;
  max-width: 820px;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

.card {
  background: var(--surface);
  border: 1px solid #e9d9cc;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.upload-form {
  margin-top: var(--space-6);
  padding: var(--space-5);
}

.section-title {
  margin: 0;
  font-size: 1.2rem;
  line-height: 1.35;
  font-weight: 700;
  color: #2f2f2f;
}

.section-subtitle {
  margin: var(--space-1) 0 var(--space-3);
  color: var(--neutral-700);
  font-size: 0.95rem;
}

.upload-row {
  margin-top: var(--space-4);
  display: flex;
  gap: var(--space-3);
  align-items: center;
  flex-wrap: wrap;
}

.dropzone {
  margin-top: var(--space-2);
  display: block;
  width: 100%;
  min-height: 132px;
  border: 1px dashed #bca8e7;
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, #fff, #faf6ff);
  padding: var(--space-6) var(--space-5);
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.15s ease;
}

.dropzone:hover,
.dropzone.is-drag {
  border-color: var(--secondary-300);
  background: #f6f0ff;
}

.dropzone:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--primary) 35%, #fff);
  outline-offset: 2px;
}

.dropzone input[type="file"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.dropzone-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--neutral-1000);
}

.dropzone-file {
  margin: var(--space-2) 0 0;
  font-size: 0.96rem;
  color: var(--neutral-700);
}

.field-label {
  display: block;
  align-items: center;
  gap: 2px;
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.5;
  color: var(--neutral-1000);
}

.field-label span {
  color: var(--primary);
}

.input-field {
  width: 100%;
  min-height: 42px;
  border: 1px solid #d7caf3;
  border-radius: var(--radius-sm);
  padding: 0 var(--space-3);
  background: #fff;
  color: #333;
  font: inherit;
}

.input-field[type="file"] {
  padding: 6px 8px;
  line-height: 1.25;
  color: var(--neutral-700);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.input-field[type="file"]::file-selector-button {
  border: 1px solid #d7caf3;
  border-radius: 6px;
  background: linear-gradient(180deg, #fff, #f8f3ff);
  color: var(--secondary-500);
  font: inherit;
  font-weight: 600;
  padding: 6px 12px;
  margin-right: 10px;
  cursor: pointer;
}

.input-field[type="file"]::file-selector-button:hover {
  border-color: var(--secondary-300);
  background: #f4edff;
}

.input-field:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--secondary-300) 30%, #fff);
  outline-offset: 1px;
}

.preset-grid {
  margin-top: var(--space-2);
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: var(--space-2);
}

.preset-card {
  display: grid;
  gap: var(--space-2);
  align-content: start;
  text-align: left;
  padding: var(--space-2);
  border: 1px solid #e4d3f4;
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, #fff, #faf7ff);
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.preset-card.is-selected {
  border-color: var(--secondary-300);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--secondary-300) 20%, #fff);
}

.preset-select {
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: pointer;
  display: grid;
  gap: var(--space-2);
}

.preset-select:hover {
  transform: translateY(-1px);
}

.preset-select:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--secondary-300) 30%, #fff);
  outline-offset: 2px;
  border-radius: 6px;
}

.preset-logo-wrap {
  width: 100%;
  aspect-ratio: 3 / 1;
  min-height: 56px;
  border-radius: 6px;
  background: #fff;
  border: 1px solid #efe7fa;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 4px;
}

.preset-logo {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-position: center;
  object-fit: contain;
  display: block;
  margin: 0 auto;
}

.preset-spark {
  font-size: 26px;
  line-height: 1;
  color: var(--secondary-300);
}

.preset-name {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 600;
  color: #2f2f2f;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.preset-delete-form {
  margin: 0;
}

.preset-delete-btn {
  min-height: 30px;
  width: 100%;
  border: 1px solid #f4b7bd;
  border-radius: 6px;
  background: #fff4f5;
  color: #c23443;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}

.preset-delete-btn:hover {
  background: #ffecef;
}

button {
  font: inherit;
}

.btn {
  width: 100%;
  min-height: 46px;
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
  border: 1px solid transparent;
  transition: all 0.15s ease;
}

.btn-primary {
  background: linear-gradient(90deg, #c74700 0%, #ff5c02 55%, #d14a00 100%);
  color: #fff;
}

.btn-primary:hover:enabled {
  background: linear-gradient(90deg, var(--primary-400) 0%, #8a36ff 100%);
}

.btn-primary:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--primary) 35%, #fff);
  outline-offset: 2px;
}

.btn-primary.is-ready {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 22%, #fff);
}

.btn-ghost {
  background: #fff;
  border-color: #d7caf3;
  color: var(--secondary-400);
}

.btn-ghost:hover {
  border-color: var(--secondary-300);
  color: var(--secondary-500);
  background: #f4edff;
}

button[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
}

.error {
  margin-top: var(--space-4);
  border: 1px solid #f4a8af;
  background: #ffeef0;
  color: var(--danger-strong);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
}

.workspace {
  margin-top: var(--space-4);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: var(--space-4);
  align-items: start;
}

.preview-card {
  box-shadow: 0 4px 14px rgba(88, 0, 255, 0.08), 0 2px 6px rgba(27, 28, 29, 0.06);
}

.action-card {
  box-shadow: 0 4px 14px rgba(255, 92, 2, 0.1), 0 2px 6px rgba(27, 28, 29, 0.06);
}

.preview-card,
.action-card {
  padding: var(--space-4);
}

.card-head h2 {
  margin: 0;
  font-size: 1.125rem;
  line-height: 1.5;
  font-weight: 500;
}

.card-head p {
  margin: var(--space-1) 0 var(--space-3);
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.45;
}

#viewer-wrap {
  position: relative;
  display: flex;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #fff;
  overflow: auto;
  max-height: 72vh;
  padding: 0;
}

#canvas-stage {
  position: relative;
  margin: 0 auto;
}

#pdf-canvas {
  display: block;
}

#selection-rect {
  position: absolute;
  border: 2px dashed var(--secondary-300);
  background: color-mix(in srgb, var(--secondary-300) 14%, transparent);
  display: none;
  pointer-events: none;
  border-radius: 4px;
}

.point-dot {
  position: absolute;
  width: 12px;
  height: 12px;
  margin-left: -6px;
  margin-top: -6px;
  border-radius: 999px;
  border: 2px solid #fff;
  background: var(--secondary-300);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--secondary-300) 40%, #fff);
  display: none;
  pointer-events: none;
}

.hint {
  margin: var(--space-2) 0 0;
  color: var(--neutral-700);
  font-size: 0.95rem;
  line-height: 1.45;
}

#crop-form {
  margin-top: var(--space-2);
}

.action-card form + form {
  margin-top: var(--space-3);
}

#preset-form {
  margin-top: var(--space-3);
  display: grid;
  gap: var(--space-2);
}

@media (max-width: 980px) {
  .workspace {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .shell {
    padding: var(--space-4) var(--space-2);
  }

  .panel {
    padding: var(--space-4);
  }

  .panel-header h1 {
    font-size: 38px;
  }

  .panel-header p {
    font-size: 18px;
  }
}