:root {
  --page-bg: #f5f1e6;
  --panel-bg: rgba(255, 251, 245, 0.88);
  --panel-stroke: rgba(44, 56, 64, 0.12);
  --panel-shadow: 0 26px 60px rgba(53, 63, 42, 0.12);
  --text-main: #203038;
  --text-strong: #142228;
  --text-muted: #576a70;
  --accent: #dd6c3b;
  --accent-strong: #ad4721;
  --accent-soft: #ffe4d6;
  --teal: #2f7c7b;
  --teal-soft: #d8efef;
  --surface-alt: #eef4ef;
  --success: #2f6d46;
  --danger: #9d3333;
  --checker-light: #f8f8f8;
  --checker-dark: #d8d8d8;
  --font-sans: "Noto Sans", "Noto Sans KR", "Segoe UI Variable", "Segoe UI", Arial, sans-serif;
  --font-heading: "Noto Sans KR", "Noto Sans", "Segoe UI", Arial, sans-serif;
}

html[lang="ko"] {
  --font-sans: "Noto Sans KR", "Noto Sans", "Malgun Gothic", "Apple SD Gothic Neo", "Segoe UI", Arial, sans-serif;
  --font-heading: "Noto Sans KR", "Noto Sans", "Malgun Gothic", "Apple SD Gothic Neo", "Segoe UI", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  color: var(--text-main);
  background:
    radial-gradient(circle at top left, rgba(221, 108, 59, 0.18), transparent 34%),
    radial-gradient(circle at top right, rgba(47, 124, 123, 0.12), transparent 28%),
    radial-gradient(circle at bottom left, rgba(255, 219, 176, 0.16), transparent 24%),
    linear-gradient(180deg, #fbf8ef 0%, #f1ebde 100%);
}

a,
button,
input,
select {
  font: inherit;
}

.page-shell {
  width: min(1200px, calc(100vw - 30px));
  margin: 0 auto;
  padding: 26px 0 42px;
}

.topbar,
.hero-card,
.panel,
.footer-bar {
  border: 1px solid var(--panel-stroke);
  border-radius: 28px;
  background: var(--panel-bg);
  box-shadow: var(--panel-shadow);
  backdrop-filter: blur(18px);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  margin-bottom: 18px;
}

.brand-mark {
  color: var(--text-strong);
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.lang-toggle {
  display: inline-flex;
  gap: 8px;
  padding: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.75);
}

.lang-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 700;
}

.lang-button.is-active {
  background: linear-gradient(135deg, var(--teal) 0%, #4fa2a1 100%);
  color: #fff;
}

.hero-card,
.panel,
.footer-bar {
  padding: 24px;
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 22px;
  margin-bottom: 20px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-strong);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-card h1,
.panel-header h2,
.step-card h2 {
  margin: 0;
  color: var(--text-strong);
  font-family: var(--font-heading);
  font-weight: 800;
}

.hero-card h1 {
  font-size: clamp(2.2rem, 5vw, 4.2rem);
  line-height: 0.94;
  max-width: 720px;
}

.hero-copy {
  margin: 16px 0 0;
  max-width: 720px;
  color: var(--text-muted);
  font-size: 1.04rem;
  line-height: 1.7;
}

.hero-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.info-chip,
.status-chip {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 700;
}

.info-chip {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.8);
}

.step-list {
  display: grid;
  gap: 12px;
}

.step-card {
  position: relative;
  padding: 16px 18px 18px 64px;
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(255, 233, 214, 0.9), rgba(227, 243, 242, 0.92));
  border: 1px solid rgba(221, 108, 59, 0.12);
}

.step-number {
  position: absolute;
  left: 18px;
  top: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--text-strong);
  color: #fff;
  font-weight: 800;
}

.step-card p,
.panel-header p,
.field-note,
.field-note-body,
.message-box,
.image-frame span,
.tips-list,
.footer-bar p {
  color: var(--text-muted);
}

.step-card p,
.panel-header p,
.field-note-body,
.tips-list {
  margin: 8px 0 0;
  line-height: 1.55;
}

.workspace-grid,
.preview-grid,
.field-grid {
  display: grid;
  gap: 20px;
}

.workspace-grid {
  grid-template-columns: minmax(0, 1.18fr) minmax(320px, 0.82fr);
  margin-bottom: 20px;
}

.preview-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 20px;
}

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

.field-grid-tight {
  align-items: start;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field-label,
.field-note-title {
  color: var(--text-strong);
  font-size: 0.92rem;
  font-weight: 800;
}

.upload-field,
.color-field {
  margin-bottom: 18px;
}

input[type="file"],
input[type="color"],
select {
  width: 100%;
  min-height: 52px;
  border: 1px solid rgba(34, 54, 57, 0.14);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
  padding: 12px 14px;
  color: var(--text-main);
}

input[type="color"] {
  padding: 6px;
}

select:disabled,
button:disabled {
  opacity: 0.65;
  cursor: wait;
}

.field-note-card {
  min-height: 52px;
  padding: 14px 16px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(216, 239, 239, 0.9), rgba(255, 239, 226, 0.95));
}

.field-note-title {
  margin: 0;
}

.action-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 0;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.primary-button {
  background: linear-gradient(135deg, var(--accent) 0%, #f08d53 100%);
  color: #fff;
  box-shadow: 0 16px 32px rgba(221, 108, 59, 0.26);
}

.secondary-button {
  margin-top: 14px;
  color: var(--teal);
  background: var(--teal-soft);
}

.tertiary-button {
  color: var(--text-strong);
  background: rgba(255, 255, 255, 0.82);
}

.secondary-button.disabled {
  background: rgba(222, 229, 229, 0.75);
  color: var(--text-muted);
  pointer-events: none;
}

.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.result-actions .secondary-button,
.result-actions .tertiary-button {
  margin-top: 0;
}

button.crop-button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.crop-help {
  margin: 12px 0 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.status-chip {
  background: var(--surface-alt);
  color: var(--text-main);
}

.message-box {
  margin-top: 16px;
  min-height: 56px;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(240, 245, 240, 0.88);
  line-height: 1.6;
}

.message-box.error {
  color: var(--danger);
  background: rgba(248, 221, 221, 0.92);
}

.message-box.success {
  color: var(--success);
  background: rgba(219, 241, 226, 0.94);
}

.tips-list {
  margin: 16px 0 0;
  padding-left: 18px;
}

.tips-list li + li {
  margin-top: 12px;
}

.image-frame {
  position: relative;
  min-height: 320px;
  border-radius: 24px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(255, 239, 226, 0.95), rgba(220, 240, 239, 0.92));
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-frame.crop-ready {
  cursor: crosshair;
  touch-action: none;
}

.image-frame img,
.image-frame canvas {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.image-frame.crop-ready img,
.image-frame.crop-ready canvas {
  user-select: none;
  -webkit-user-drag: none;
}

.image-frame canvas {
  height: auto;
  max-height: 100%;
}

.crop-selection-box {
  position: absolute;
  z-index: 2;
  border: 2px solid rgba(47, 124, 123, 0.95);
  border-radius: 12px;
  background: rgba(47, 124, 123, 0.18);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.7) inset;
  pointer-events: none;
}

.image-frame.checkerboard {
  background:
    linear-gradient(45deg, var(--checker-dark) 25%, transparent 25%),
    linear-gradient(-45deg, var(--checker-dark) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, var(--checker-dark) 75%),
    linear-gradient(-45deg, transparent 75%, var(--checker-dark) 75%),
    linear-gradient(135deg, var(--checker-light), #efefef);
  background-size: 28px 28px;
  background-position: 0 0, 0 14px, 14px -14px, -14px 0, 0 0;
}

.image-frame.empty img,
.image-frame.empty canvas {
  display: none;
}

.image-frame span {
  padding: 20px;
  text-align: center;
}

.image-frame:not(.empty) span {
  display: none;
}

.footer-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.footer-bar p {
  margin: 0;
}

.footer-bar a {
  color: var(--teal);
  font-weight: 800;
  text-decoration: none;
}

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

  .page-shell {
    width: min(calc(100vw - 20px), 1200px);
    padding-top: 18px;
  }

  .footer-bar,
  .topbar,
  .action-row {
    flex-direction: column;
    align-items: stretch;
  }

  .lang-toggle {
    width: 100%;
    justify-content: stretch;
  }

  .lang-button {
    flex: 1 1 0;
  }
}