:root {
  color-scheme: light;
  --accent: #990012;
  --accent-dark: #cf082f;
  --bg: #fcf7f4;
  --card: #ffffff;
  --text: #7a000e;
  --muted: #5b6678;
  --line: #d8e1ec;
  --danger: #8a1f11;
  --shadow: rgba(23, 32, 51, 0.12);
  --metal: #f4e8e5;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

.site-header {
  max-width: 840px;
  margin: 0 auto;
  padding: 2rem 1rem 1rem;
}

.site-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand {
  margin: 0 0 0.25rem;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(1.8rem, 6vw, 2.6rem);
  line-height: 1.05;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0;
  justify-content: flex-end;
}

.nav-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 2.25rem;
  padding: 0.55rem 0.95rem;
  border: 2px solid var(--accent);
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  box-shadow: 0 6px 14px rgba(153, 0, 18, 0.18), inset 0 -1px 0 rgba(0, 0, 0, 0.15);
  color: #ffffff;
  font-size: clamp(0.85rem, 2vw, 0.95rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.nav-button::after {
  content: " →";
  margin-left: auto;
  padding-left: 0.35rem;
}

.nav-button:hover,
.nav-button:focus-visible {
  background: var(--accent-dark);
  box-shadow: 0 18px 32px rgba(153, 0, 18, 0.3), inset 0 -2px 0 rgba(0, 0, 0, 0.22);
  outline: 3px solid rgba(153, 0, 18, 0.18);
  outline-offset: 2px;
  transform: translateY(-1px);
}

.viewer {
  max-width: 840px;
  margin: 0 auto;
  padding: 1rem;
}

.status,
.step-view {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(23, 32, 51, 0.06);
}

.status {
  padding: 1rem;
  color: var(--muted);
}

.status.error {
  color: var(--danger);
}

.step-view {
  padding: clamp(1rem, 4vw, 1.5rem);
}

.progress-row {
  display: grid;
  gap: 0.5rem;
  margin-bottom: 1rem;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 650;
}

.progress-track {
  width: 100%;
  height: 0.55rem;
  overflow: hidden;
  background: #e7edf5;
  border-radius: 999px;
}

.progress-bar {
  width: 0%;
  height: 100%;
  background: var(--accent);
  border-radius: inherit;
  transition: width 160ms ease;
}

.step-media {
  display: grid;
  place-items: center;
  min-height: 220px;
  margin: 0 0 1.25rem;
  overflow: hidden;
  background: #eef3f8;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.step-media img {
  display: block;
  width: 100%;
  max-height: 560px;
  object-fit: contain;
}

.step-media img[hidden] {
  display: none;
}

.image-fallback {
  padding: 2rem;
  color: var(--muted);
  text-align: center;
}

.step-copy h2 {
  margin-bottom: 0.5rem;
  font-size: clamp(1.35rem, 4vw, 2rem);
}

.step-copy p {
  margin-bottom: 1.5rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.controls {
  display: flex;
  gap: 0.75rem;
  justify-content: space-between;
}

button {
  min-width: 7rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-weight: 700;
}

button:hover:not(:disabled),
button:focus-visible:not(:disabled) {
  border-color: var(--accent);
  outline: 3px solid rgba(153, 0, 18, 0.25);
  outline-offset: 2px;
}

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

button.primary:hover:not(:disabled),
button.primary:focus-visible:not(:disabled) {
  background: var(--accent-dark);
}

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

.cut-list {
  display: grid;
  gap: 1rem;
}

.boxed-list {
  padding: clamp(0.75rem, 3vw, 1rem);
  border: 2px solid rgba(153, 0, 18, 0.28);
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(244, 232, 229, 0.58));
}

.cut-list-intro,
.cut-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(23, 32, 51, 0.06);
}

.boxed-card {
  border: 3px solid var(--accent);
  border-radius: 18px;
  box-shadow: 0 18px 36px rgba(23, 32, 51, 0.16), 0 0 0 1px rgba(153, 0, 18, 0.08);
}

.cut-list-intro {
  padding: clamp(1rem, 4vw, 1.5rem);
}

.cut-list-intro h2,
.cut-card h3 {
  margin-bottom: 0.35rem;
}

.cut-list-intro p {
  margin-bottom: 0;
  color: var(--muted);
}

.cut-card {
  overflow: hidden;
}

.cut-card-header {
  padding: 1rem;
  background: var(--metal);
  border-bottom: 2px solid var(--accent);
}

.cut-card-header h3 {
  margin: 0;
  font-size: 1.25rem;
}

.cut-card-spec {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.cut-card table {
  width: 100%;
  border-collapse: collapse;
}

.cut-card th,
.cut-card td {
  padding: 0.85rem 1rem;
  border-top: 1px solid var(--line);
  text-align: left;
}

.cut-card tbody tr:nth-child(odd) {
  background: rgba(244, 232, 229, 0.42);
}

.cut-card th {
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.cut-card td {
  font-size: 1.1rem;
  font-weight: 700;
}

.cut-card td:last-child,
.cut-card th:last-child {
  text-align: right;
}

.cut-card tfoot th,
.cut-card tfoot td {
  border-top: 2px solid var(--accent);
  background: rgba(244, 232, 229, 0.7);
  color: var(--accent);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.cut-card tfoot td {
  text-transform: none;
}

@media print {
  body {
    background: #ffffff;
  }

  .site-header,
  .viewer {
    max-width: none;
  }

  .site-nav {
    display: none;
  }

  .cut-list {
    gap: 0.5rem;
  }

  .cut-list-intro,
  .cut-card {
    break-inside: avoid;
    box-shadow: none;
  }
}

@media (max-width: 560px) {
  .site-header {
    padding-top: 1.25rem;
  }

  .controls {
    flex-direction: column-reverse;
  }

  button {
    width: 100%;
  }
}