:root {
  color-scheme: light;
  --bg: #f7f5f4;
  --surface: #f7f5f4;
  --surface-low: #f1efee;
  --surface-lowest: #fbfaf9;
  --surface-high: #ece8e6;
  --surface-highest: #e6e0dd;
  --text: #1c1b1b;
  --text-muted: #8f8a87;
  --outline-variant: #d9d0cb;
  --border: rgba(184, 170, 164, 0.15);
  --accent: #aa3000;
  --accent-strong: #8f2800;
  --accent-soft: #d43f00;
  --success: #aa3000;
  --danger: #aa3000;
  --shadow: 0 12px 32px rgba(28, 27, 27, 0.04);
  --radius-lg: 0;
  --radius-md: 0;
  --radius-sm: 0;
  --page-width: 1180px;
  --content-width: 980px;
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 5.5rem;
  --font-sans: "Inter", "Segoe UI", sans-serif;
  --font-meta: "Space Grotesk", "Inter", sans-serif;
  --font-mono: "Geist Mono", "SFMono-Regular", "SF Mono", Consolas, monospace;
  --panel-padding: 2rem;
  --line-soft: rgba(184, 170, 164, 0.35);
  --line-strong: rgba(184, 170, 164, 0.55);
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 18% 0%, rgba(170, 48, 0, 0.04), transparent 18%),
    linear-gradient(180deg, rgba(247, 245, 244, 0.98), rgba(247, 245, 244, 1));
  z-index: -1;
}

body::after {
  content: "";
  position: fixed;
  left: 1.5rem;
  top: 7.75rem;
  bottom: 1.5rem;
  width: 30px;
  pointer-events: none;
  opacity: 0.75;
  background:
    repeating-linear-gradient(
      to bottom,
      rgba(170, 48, 0, 0.14) 0,
      rgba(170, 48, 0, 0.14) 1px,
      transparent 1px,
      transparent 20px
    );
}

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  cursor: pointer;
}

.site-shell {
  min-height: 100vh;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(247, 245, 244, 0.8);
}

.site-header__inner,
.page-main,
.site-footer {
  width: min(calc(100% - 2rem), var(--page-width));
  margin: 0 auto;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 1.15rem 0 1rem;
}

.brand {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand span {
  color: inherit;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
  align-items: center;
}

.site-nav a {
  padding: 0.35rem 0;
  color: var(--text-muted);
  transition: color 120ms ease;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  letter-spacing: 0.01em;
  text-transform: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--text);
}

.page-main {
  padding: calc(var(--space-6) + 1rem) 0 4rem;
}

.page-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(120px, 0.35fr);
  gap: var(--space-4);
  align-items: end;
  max-width: 1040px;
  margin-bottom: calc(var(--space-6) * 0.75);
  margin-left: 2.75rem;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 1rem;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  position: relative;
  padding-left: 2.2rem;
}

.eyebrow::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 1.6rem;
  height: 1px;
  background: rgba(170, 48, 0, 0.4);
}

.page-intro__content {
  max-width: 760px;
}

.project-number {
  justify-self: end;
  align-self: start;
  font-family: var(--font-sans);
  font-size: clamp(3.5rem, 9vw, 7rem);
  line-height: 0.88;
  letter-spacing: -0.04em;
  font-weight: 700;
  color: rgba(28, 27, 27, 0.06);
  user-select: none;
  pointer-events: none;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0.7rem;
  font-size: clamp(3rem, 5.8vw, 4.8rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  font-weight: 500;
}

h2 {
  margin-bottom: 0.75rem;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  font-weight: 500;
}

.lede,
.section-copy,
.hint,
.helper-text,
.field-help,
.status-text,
.empty-state {
  color: var(--text-muted);
}

.page-grid,
.builder-layout,
.two-column-layout {
  display: grid;
  gap: var(--space-4);
}

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

.builder-layout--wide {
  grid-template-columns: minmax(0, 1.14fr) minmax(280px, 0.72fr);
  align-items: start;
  margin-left: 2.75rem;
}

.builder-layout--single {
  grid-template-columns: minmax(0, 1fr);
  margin-left: 2.75rem;
}

.workbench-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.9fr) minmax(320px, 0.95fr);
  gap: var(--space-4);
  align-items: start;
  margin-left: 2.75rem;
}

.workbench-main,
.workbench-sidebar {
  display: grid;
  gap: var(--space-4);
}

.workbench-main {
  min-width: 0;
}

.workbench-sidebar {
  position: sticky;
  top: 5.4rem;
  z-index: 6;
  align-self: start;
}

.workbench-sidebar .panel {
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(14px);
}

.two-column-layout {
  grid-template-columns: minmax(0, 1fr);
}

.panel,
.hero-card,
.builder-card {
  background: transparent;
  border-radius: var(--radius-lg);
  box-shadow: none;
}

.panel {
  padding: var(--panel-padding);
  position: relative;
}

.panel::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: var(--line-soft);
}

.panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  position: relative;
}

.panel-header::before {
  content: "";
  position: absolute;
  left: -2rem;
  right: 0;
  top: -0.55rem;
  height: 1px;
  background: var(--line-strong);
}

.panel-header--stack {
  flex-direction: column;
}

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

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

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

.field {
  display: grid;
  gap: 0.45rem;
}

.field--inline {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 0.9rem;
}

.field label,
.group-label,
.section-label {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.text-input,
.select-input,
.prompt-output,
.textarea-input {
  width: 100%;
  border: none;
  border-bottom: 2px solid rgba(184, 170, 164, 0.2);
  border-radius: 0;
  background: #ffffff;
  color: var(--text);
  padding: 0.95rem 0 0.8rem;
  transition: border-color 120ms ease, background-color 120ms ease;
}

.text-input:focus,
.select-input:focus,
.prompt-output:focus,
.textarea-input:focus {
  outline: none;
  border-bottom-color: var(--accent);
  box-shadow: none;
}

.prompt-output,
.textarea-input {
  min-height: 200px;
  resize: vertical;
  padding-inline: 0;
  padding-top: 1rem;
  border-radius: 0;
  border: none;
  border-bottom: 2px solid rgba(184, 170, 164, 0.2);
  background: #ffffff;
}

.prompt-output[readonly] {
  background: #ffffff;
}

.actions-row,
.inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.actions-row--tight {
  gap: 0.5rem;
}

.output-dock {
  display: grid;
  gap: 1.25rem;
  margin-left: 2.75rem;
  margin-bottom: 2rem;
  position: sticky;
  top: 5.4rem;
  z-index: 6;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(14px);
}

.output-dock__topline {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
}

.output-dock__copy {
  display: grid;
  gap: 1rem;
}

.output-dock__meta {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 0.45fr);
}

.page-note {
  max-width: 780px;
  margin-left: 2.75rem;
  margin-bottom: 1.25rem;
  color: var(--text-muted);
}

.suggestion-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.suggestion-chip {
  border: none;
  background: transparent;
  color: var(--text-muted);
  padding: 0.35rem 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  position: relative;
}

.suggestion-chip::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--line-soft);
}

.suggestion-chip:hover {
  color: var(--accent);
}

.option-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
}

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

.option-button {
  min-height: 48px;
  padding: 0.85rem 0.95rem;
  border: 1px solid rgba(184, 170, 164, 0.18);
  background: #ffffff;
  color: var(--text);
  text-align: left;
  font: inherit;
  transition: transform 120ms ease, border-color 120ms ease, color 120ms ease, background-color 120ms ease;
}

.option-button small {
  display: block;
  margin-top: 0.25rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.option-button:hover,
.option-button:focus-visible {
  outline: none;
  border-color: rgba(170, 48, 0, 0.32);
  transform: translateY(-1px);
}

.option-button.is-selected {
  border-color: transparent;
  background: linear-gradient(135deg, rgba(170, 48, 0, 0.12), rgba(212, 63, 0, 0.08));
  color: var(--accent);
}

.summary-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.summary-pill {
  padding: 0.35rem 0.6rem;
  background: rgba(255, 255, 255, 0.75);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  position: relative;
}

.summary-pill::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: var(--line-soft);
}

.button,
.ghost-button,
.danger-button {
  border: 1px solid transparent;
  border-radius: 0;
  padding: 0.95rem 1.3rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition: transform 120ms ease, background-color 120ms ease, color 120ms ease;
}

.button:hover,
.ghost-button:hover,
.danger-button:hover {
  transform: translateY(-1px);
}

.button {
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  color: #fff;
}

.button:hover {
  background: linear-gradient(135deg, var(--accent-strong), var(--accent));
}

.ghost-button {
  background: transparent;
  color: var(--text-muted);
  border-color: transparent;
}

.ghost-button:hover {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.32rem;
}

.danger-button {
  background: transparent;
  color: var(--text-muted);
  border-color: transparent;
}

.text-link-button {
  border: none;
  background: transparent;
  color: var(--text-muted);
  padding: 0.35rem 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
}

.text-link-button:hover {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.32rem;
}

.card-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-left: 2.75rem;
}

.builder-card {
  padding: 2rem;
  background: transparent;
  transition: background-color 120ms ease, transform 120ms ease;
  position: relative;
}

.builder-card:hover {
  background: rgba(255, 255, 255, 0.24);
  transform: translateX(6px);
}

.builder-card h2 {
  font-size: 1.15rem;
}

.builder-card p {
  margin-bottom: 1.25rem;
}

.builder-card .ghost-button,
.builder-card .button {
  width: fit-content;
}

.builder-card .button {
  box-shadow: var(--shadow);
}

.builder-card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: rgba(184, 170, 164, 0.45);
}

.segmented-control {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.2rem;
}

.segmented-control button {
  border: none;
  border-radius: 0;
  background: transparent;
  color: var(--text-muted);
  padding: 0.25rem 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.segmented-control button.is-active {
  background: transparent;
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.35rem;
}

.formula-row,
.option-row {
  display: grid;
  gap: 0.75rem;
  align-items: center;
  padding: 0.85rem;
  border-radius: var(--radius-md);
  background: transparent;
  position: relative;
}

.formula-row::before,
.option-row::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: rgba(184, 170, 164, 0.35);
}

.library-list {
  display: grid;
  gap: 0.75rem;
}

.library-card {
  padding: 1.25rem 0;
  position: relative;
}

.library-card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: var(--line-soft);
}

.library-card h3 {
  margin-bottom: 0.3rem;
}

.library-card p {
  margin-bottom: 0.8rem;
  white-space: pre-wrap;
}

.admin-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.2fr);
  margin-left: 2.75rem;
}

.token-grid {
  display: grid;
  gap: 1rem;
}

.preview-card {
  padding: var(--panel-padding);
  position: relative;
}

.preview-card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: var(--line-soft);
}

.preview-card .eyebrow {
  margin-bottom: 0.65rem;
}

.preview-swatch-row {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 1rem;
}

.preview-swatch {
  min-height: 72px;
  padding: 0.75rem;
  display: grid;
  align-content: end;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.preview-swatch--bg {
  background: var(--bg);
}

.preview-swatch--surface {
  background: var(--surface);
}

.preview-swatch--surface-low {
  background: var(--surface-low);
}

.preview-swatch--accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  color: #fff;
}

.formula-row {
  grid-template-columns: minmax(140px, 180px) minmax(0, 1fr) auto auto;
}

.option-row {
  grid-template-columns: auto minmax(160px, 220px) minmax(0, 1fr);
}

.row-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.row-title small {
  display: block;
  font-weight: 500;
  color: var(--text-muted);
}

.checkbox {
  width: 1rem;
  height: 1rem;
  accent-color: var(--accent);
}

.mini-button {
  border: none;
  border-radius: 0;
  background: transparent;
  color: var(--text-muted);
  padding: 0.4rem 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.mini-button:hover {
  color: var(--accent);
}

.history-list,
.snippet-list,
.preset-list {
  display: grid;
  gap: 0.75rem;
}

.record-card,
.snippet-card,
.preset-card {
  padding: 1.5rem;
  border-radius: var(--radius-md);
  background: transparent;
  transition: background-color 120ms ease;
  position: relative;
}

.record-card:hover,
.snippet-card:hover,
.preset-card:hover {
  background: rgba(255, 255, 255, 0.2);
}

.record-card::before,
.snippet-card::before,
.preset-card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: var(--line-soft);
}

.record-card header,
.snippet-card header,
.preset-card header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 0.6rem;
}

.record-card h3,
.snippet-card h3,
.preset-card h3 {
  margin-bottom: 0.35rem;
  font-size: 0.96rem;
}

.record-card p,
.snippet-card p,
.preset-card p {
  margin-bottom: 0.8rem;
}

.meta-line {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.status-text {
  min-height: 1.25rem;
  font-size: 0.92rem;
}

.section-stack {
  display: grid;
  gap: calc(var(--space-6) * 0.85);
}

.section-heading {
  position: relative;
  display: grid;
  gap: 0.5rem;
  padding-right: 5rem;
}

.section-heading__number {
  position: absolute;
  right: 0;
  top: -0.6rem;
  font-size: clamp(2.8rem, 7vw, 5rem);
  line-height: 1;
  letter-spacing: -0.05em;
  font-weight: 500;
  color: rgba(28, 27, 27, 0.08);
  pointer-events: none;
  user-select: none;
}

.toast {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  max-width: min(320px, calc(100vw - 2rem));
  padding: 0.9rem 1rem;
  border-radius: var(--radius-md);
  background: rgba(252, 249, 248, 0.8);
  border: 1px solid rgba(184, 170, 164, 0.15);
  color: #fff;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 140ms ease, transform 140ms ease;
  pointer-events: none;
  color: var(--text);
  backdrop-filter: blur(24px);
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.site-footer {
  padding: 0 0 2.5rem;
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-left: 2.75rem;
}

.site-footer--minimal {
  display: none;
}

@media (max-width: 920px) {
  .page-intro {
    grid-template-columns: minmax(0, 1fr);
    margin-left: 0;
  }

  .project-number {
    justify-self: start;
  }

  .builder-layout--wide {
    grid-template-columns: minmax(0, 1fr);
    margin-left: 0;
  }

  .builder-layout--single,
  .workbench-layout,
  .output-dock,
  .page-note,
  .admin-grid {
    margin-left: 0;
  }

  .output-dock {
    position: static;
    backdrop-filter: none;
  }

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

  .workbench-sidebar {
    position: static;
  }

  .workbench-sidebar .panel {
    position: static;
    backdrop-filter: none;
  }

  .card-grid,
  .site-footer {
    margin-left: 0;
  }

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

  .output-dock__meta,
  .admin-grid,
  .preview-swatch-row {
    grid-template-columns: minmax(0, 1fr);
  }

  .formula-row,
  .option-row {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 640px) {
  .site-header__inner,
  .page-main,
  .site-footer {
    width: min(calc(100% - 1.25rem), var(--page-width));
  }

  .page-main {
    padding: 2rem 0 2.5rem;
  }

  body::after {
    display: none;
  }

  .project-number,
  .section-heading__number {
    font-size: 2.5rem;
  }

  .panel,
  .builder-card {
    padding: 1rem;
  }

  .actions-row,
  .inline-actions {
    flex-direction: column;
  }

  .actions-row > *,
  .inline-actions > * {
    width: 100%;
  }
}