/* ==========================================================================
   site.css
   Components and layout for paperreira.com
   Concept: Modern Federal Executive. Engraved hairlines, disciplined
   proportions, serif authority, restrained emerald and gold accents.
   ========================================================================== */

/* ------------------------------------------------------------- primitives */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  padding-block: clamp(var(--space-12), 7vw, var(--space-24));
  border-top: 1px solid var(--color-rule);
}

.section--tight {
  padding-block: clamp(var(--space-10), 5vw, var(--space-16));
}

.section--compact-bottom {
  padding-bottom: clamp(var(--space-6), 3vw, var(--space-10));
}

.section--compact-top {
  padding-top: clamp(var(--space-6), 3vw, var(--space-10));
}

.hero.section--compact-bottom {
  padding-bottom: clamp(var(--space-4), 2vw, var(--space-6));
}

.section--plate {
  background: var(--color-surface);
}

.section--page {
  background: var(--color-canvas);
}

.about-intro__copy {
  display: grid;
  gap: var(--space-5) var(--space-8);
}

.about-intro__copy p {
  max-width: none;
  margin: 0;
}

@media (min-width: 60em) {
  .about-intro__copy {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.eyebrow {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin: 0 0 var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.eyebrow::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-gold-line);
}

.lede {
  font-size: var(--text-lg);
  line-height: 1.5;
  color: var(--color-text-muted);
}

.muted {
  color: var(--color-text-muted);
}

.small {
  font-size: var(--text-sm);
}

.rule-gold {
  width: 4.5rem;
  height: 2px;
  background: var(--color-gold);
  border: 0;
  margin: var(--space-6) 0;
}

/* ---------------------------------------------------------------- buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color var(--dur) var(--ease),
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-on-accent);
}

.btn--primary:hover {
  background: var(--color-accent-strong);
  color: var(--color-on-accent);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-rule-strong);
}

.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

/* ----------------------------------------------------------------- header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-canvas) 92%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-rule);
}

.header__inner {
  min-height: 5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.lockup {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
  padding-block: var(--space-2);
}

.lockup__mark {
  width: 50px;
  height: 50px;
  flex: none;
  color: var(--color-text);
}

.lockup__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.lockup__name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.lockup__sub {
  font-size: var(--text-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

/* -------------------------------------------------------------------- nav */
.nav {
  display: flex;
  align-items: center;
  gap: clamp(var(--space-3), 1.6vw, var(--space-6));
}

.nav__list {
  display: flex;
  align-items: center;
  gap: clamp(var(--space-3), 1.4vw, var(--space-5));
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding-inline: var(--space-1);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  white-space: nowrap;
}

.nav__link:hover {
  color: var(--color-text);
}

.nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 12px;
  height: 2px;
  background: var(--color-accent);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}

.nav__link[aria-current]:not([aria-current='false'])::after,
.nav__link.is-active::after {
  opacity: 1;
}

.nav__link[aria-current]:not([aria-current='false']),
.nav__link.is-active {
  color: var(--color-text);
  font-weight: 600;
}

/* ------------------------------------------------------------ nav controls */
.controls {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.control-group {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--color-rule-strong);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.control {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-width: 44px;
  min-height: 44px;
  padding-inline: var(--space-2);
  background: transparent;
  border: 0;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color var(--dur) var(--ease),
    color var(--dur) var(--ease);
}

.control + .control {
  border-left: 1px solid var(--color-rule);
}

.control:hover {
  background: var(--color-accent-soft);
  color: var(--color-text);
}

.control[aria-pressed='true'],
.preference-input:checked + .control {
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.preference-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.preference-input:focus-visible + .control {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.theme-icon--dark,
.theme-label--dark {
  display: none;
}

:root:has(#theme-dark-toggle:checked) .theme-icon--light,
:root:has(#theme-dark-toggle:checked) .theme-label--light {
  display: none;
}

:root:has(#theme-dark-toggle:checked) .theme-icon--dark,
:root:has(#theme-dark-toggle:checked) .theme-label--dark {
  display: block;
}

.control--theme {
  border: 1px solid var(--color-rule-strong);
  border-radius: var(--radius-md);
  gap: var(--space-2);
  padding-inline: var(--space-3);
}

.control--theme .control__label {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.control__icon {
  width: 18px;
  height: 18px;
  flex: none;
}

.nav-toggle {
  display: none;
}

/* mobile nav */
@media (max-width: 63.99em) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-rule);
    box-shadow: var(--shadow-md);
    padding: var(--space-2) var(--gutter) var(--space-5);
    max-height: calc(100dvh - var(--header-h));
    overflow-y: auto;
  }

  .nav[hidden] {
    display: none;
  }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav__list li + li {
    border-top: 1px solid var(--color-rule);
  }

  .nav__link {
    width: 100%;
    min-height: 48px;
    padding-block: var(--space-2);
    font-size: var(--text-base);
  }

  .nav__link::after {
    left: 0;
    right: auto;
    top: 10px;
    bottom: 10px;
    width: 2px;
    height: auto;
  }

  .controls {
    margin-top: var(--space-4);
    flex-wrap: wrap;
    justify-content: space-between;
  }
}

@media (max-width: 40em) {
  body {
    padding-bottom: calc(9rem + env(safe-area-inset-bottom, 0px));
  }

  .controls[data-mobile-dock] {
    position: fixed;
    left: 50%;
    bottom: calc(4.75rem + env(safe-area-inset-bottom, 0px));
    z-index: 95;
    width: max-content;
    max-width: calc(100vw - 2rem);
    margin: 0;
    padding: 0.4rem;
    flex-wrap: nowrap;
    gap: 0.3rem;
    transform: translateX(-50%);
    background: var(--color-surface);
    border: 1px solid var(--color-rule-strong);
    border-radius: 999px;
    box-shadow: var(--shadow-md);
  }

  .controls[data-mobile-dock] .control--theme,
  .controls[data-mobile-dock] .control-group {
    border-radius: 999px;
  }

  .controls[data-mobile-dock] .control {
    min-width: 40px;
    min-height: 40px;
  }

  .mobile-controls-trigger,
  .mobile-controls-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
    padding: 0;
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-text);
    background: var(--color-surface);
    border: 1px solid var(--color-rule-strong);
    border-radius: 999px;
    box-shadow: var(--shadow-md);
    cursor: pointer;
  }

  .mobile-controls-trigger {
    position: fixed;
    left: 50%;
    bottom: calc(4.75rem + env(safe-area-inset-bottom, 0px));
    z-index: 95;
    transform: translateX(-50%);
  }

  .mobile-controls-close {
    min-width: 40px;
    min-height: 40px;
    box-shadow: none;
  }

  .mobile-controls-trigger[hidden],
  .mobile-controls-close[hidden],
  .controls[data-mobile-dock][hidden] {
    display: none;
  }

  .to-top {
    bottom: calc(var(--space-4) + env(safe-area-inset-bottom, 0px));
  }
}

/* ------------------------------------------------------------------- hero */
.hero {
  padding-block: clamp(var(--space-12), 7vw, var(--space-24));
}

.hero__grid {
  display: grid;
  gap: clamp(var(--space-8), 5vw, var(--space-16));
  align-items: start;
}

@media (min-width: 56em) {
  .hero__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: stretch;
  }

  .portrait {
    display: flex;
    flex-direction: column;
    min-height: 0;
  }

  .portrait picture {
    position: relative;
    display: block;
    flex: 1 1 auto;
    min-height: 0;
    overflow: hidden;
    border-radius: var(--radius-sm);
  }

  .portrait img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
  }
}

.hero__name {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-3);
}

.hero__title {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--color-accent);
  margin: 0 0 var(--space-5);
  max-width: 34ch;
}

.hero__summary {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 56ch;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  margin-top: var(--space-6);
  margin-bottom: 0;
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-rule);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  list-style: none;
  padding-left: 0;
}

.hero__meta li {
  max-width: none;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.hero__meta li::before {
  content: '';
  width: 4px;
  height: 4px;
  background: var(--color-gold);
  border-radius: 50%;
  flex: none;
}

/* portrait plate */
.portrait {
  position: relative;
  margin: 0;
  background: var(--photo-matte);
  padding: clamp(var(--space-2), 1.4vw, var(--space-4));
  border: 1px solid var(--color-rule-strong);
  border-radius: var(--radius-md);
}

.portrait::after {
  content: '';
  position: absolute;
  inset: 6px;
  border: 1px solid var(--color-gold-line);
  border-radius: var(--radius-sm);
  pointer-events: none;
}

.portrait img {
  width: 100%;
  border-radius: var(--radius-sm);
}

.portrait__caption {
  margin: var(--space-3) 0 0;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #4b5a50;
  text-align: center;
}

.portrait--square {
  max-width: 20rem;
}

/* ----------------------------------------------------------- metrics ledger */
.ledger {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--color-rule-strong);
}

@media (min-width: 40em) {
  .ledger {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 62em) {
  .ledger {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.ledger__item {
  padding: var(--space-6) var(--space-5) var(--space-6) 0;
  border-bottom: 1px solid var(--color-rule);
}

@media (min-width: 40em) {
  .ledger__item {
    border-right: 1px solid var(--color-rule);
    padding-left: var(--space-5);
  }
  .ledger__item:first-child {
    padding-left: 0;
  }
  .ledger__item:nth-child(2n) {
    border-right: 0;
  }
}

@media (min-width: 62em) {
  .ledger__item:nth-child(2n) {
    border-right: 1px solid var(--color-rule);
  }
  .ledger__item:last-child {
    border-right: 0;
  }
}

.ledger__value {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  line-height: 1.05;
  font-variant-numeric: tabular-nums lining-nums;
  margin: 0 0 var(--space-2);
}

.ledger__label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: 0;
  max-width: 30ch;
}

/* ------------------------------------------------------------ two column */
.split {
  display: grid;
  gap: clamp(var(--space-8), 5vw, var(--space-16));
  align-items: start;
}

@media (min-width: 56em) {
  .split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  }
  .split--reverse > :first-child {
    order: 2;
  }
  .split--wide-first {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  }
}

.stack > * + * {
  margin-top: var(--space-4);
}

/* --------------------------------------------------------------- timeline */
.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--color-rule);
}

.timeline > li {
  max-width: none;
  display: grid;
  gap: var(--space-2) var(--space-8);
  padding-block: var(--space-6);
  border-bottom: 1px solid var(--color-rule);
}

@media (min-width: 48em) {
  .timeline > li {
    grid-template-columns: 12rem minmax(0, 1fr);
  }
}

.timeline__when {
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  font-variant-numeric: tabular-nums;
}

.timeline__role {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  margin: 0 0 var(--space-1);
}

.timeline__org {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin: 0 0 var(--space-3);
}

/* ------------------------------------------------------------ card lists */
.cards {
  display: grid;
  gap: var(--space-5);
}

@media (min-width: 48em) {
  .cards--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .cards--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-md);
  transition:
    border-color var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.card:hover {
  border-color: var(--color-rule-strong);
}

.card__index {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-gold-text);
  font-variant-numeric: tabular-nums;
}

.card h3 {
  margin: 0;
}

.card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.portfolio-thumbnail {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: top center;
  background: var(--color-canvas);
  border: 1px solid var(--color-rule-strong);
  border-radius: var(--radius-sm);
}

.card__foot {
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-rule);
}

.card--resume h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
}

.file-meta {
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  font-variant-numeric: tabular-nums;
}

/* --------------------------------------------------------- credential list */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
}

.chips li {
  max-width: none;
}

.chip {
  display: inline-flex;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-rule-strong);
  border-radius: 999px;
  font-size: var(--text-sm);
}

.chip__id {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  font-variant-numeric: tabular-nums;
}

.deflist {
  margin: 0;
}

.deflist > div {
  display: grid;
  gap: var(--space-1) var(--space-6);
  padding-block: var(--space-4);
  border-bottom: 1px solid var(--color-rule);
}

@media (min-width: 40em) {
  .deflist > div {
    grid-template-columns: minmax(0, 1fr) 14rem;
    align-items: baseline;
  }
}

.deflist dt {
  font-weight: 600;
  font-size: var(--text-base);
}

.deflist dd {
  margin: 0;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* -------------------------------------------------------------- case study */
.case {
  padding-block: clamp(var(--space-10), 5vw, var(--space-16));
  border-top: 1px solid var(--color-rule);
}

.case__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-3) var(--space-5);
  margin-bottom: var(--space-6);
}

.case__head > div {
  flex: 1 1 22rem;
  min-width: 0;
}

.case__head p {
  max-width: none;
  margin-bottom: 0;
}

.case__number {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-gold-text);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.case__grid {
  display: grid;
  gap: var(--space-8);
}

@media (min-width: 56em) {
  .case__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.crar {
  border-top: 1px solid var(--color-rule);
  padding-top: var(--space-5);
}

.crar h3 {
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-3);
}

.crar ul {
  margin: 0;
  padding-left: 1.1rem;
}

.crar li {
  margin-bottom: var(--space-2);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  list-style: none;
  margin: var(--space-5) 0 0;
  padding: 0;
}

.tags li {
  max-width: none;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-sm);
  padding: var(--space-1) var(--space-3);
}

/* ------------------------------------------------------------------- form */
.form {
  display: grid;
  gap: var(--space-5);
  max-width: 34rem;
}

.field {
  display: grid;
  gap: var(--space-2);
}

.field label {
  font-size: var(--text-sm);
  font-weight: 600;
}

.field__hint {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.field input,
.field textarea {
  width: 100%;
  min-height: 44px;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-rule-strong);
  border-radius: var(--radius-md);
  transition:
    border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.field textarea {
  min-height: 9rem;
  resize: vertical;
}

.field input:focus,
.field textarea:focus {
  border-color: var(--color-accent);
  outline: 2px solid transparent;
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.field input[aria-invalid='true'],
.field textarea[aria-invalid='true'] {
  border-color: var(--color-error);
}

.field__error {
  font-size: var(--text-sm);
  color: var(--color-error);
  font-weight: 500;
  min-height: 1.2em;
}

.form__note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  max-width: 44ch;
}

.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.alert {
  padding: var(--space-4) var(--space-5);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-md);
  background: var(--color-accent-soft);
  font-size: var(--text-sm);
}

.alert[hidden] {
  display: none;
}

/* -------------------------------------------------------------- contact box */
.contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--color-rule);
}

.contact-list > div {
  display: grid;
  gap: var(--space-1) var(--space-4);
  padding-block: var(--space-4);
  border-bottom: 1px solid var(--color-rule);
}

@media (min-width: 34em) {
  .contact-list > div {
    grid-template-columns: 8rem minmax(0, 1fr);
    align-items: baseline;
  }
}

.contact-list dd {
  margin: 0;
  font-size: var(--text-base);
}

.contact-list dt,
.contact-label {
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

/* ----------------------------------------------------------------- footer */
.footer {
  border-top: 1px solid var(--color-rule-strong);
  background: var(--color-surface-2);
  padding-block: var(--space-10);
  margin-top: var(--space-8);
}

.footer__grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-6);
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer__nav li {
  max-width: none;
}

.footer a {
  font-size: var(--text-sm);
}

.footer__legal {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin: 0;
}

/* ------------------------------------------------------------ back to top */
.to-top {
  position: fixed;
  right: clamp(var(--space-4), 3vw, var(--space-8));
  bottom: clamp(var(--space-4), 3vw, var(--space-8));
  z-index: 90;
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-rule-strong);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition:
    opacity var(--dur) var(--ease),
    transform var(--dur) var(--ease),
    visibility var(--dur) var(--ease);
}

.to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.to-top:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* --------------------------------------------------------------- prose page */
.prose h2 {
  margin-top: var(--space-10);
}

.prose h3 {
  margin-top: var(--space-8);
}

.prose ul {
  margin-bottom: var(--space-4);
}

.page-head {
  padding-block: clamp(var(--space-10), 6vw, var(--space-20)) var(--space-8);
}

.page-head.page-head--compact-bottom {
  padding-bottom: 0;
}

.portfolio-builds.section--compact-top {
  padding-top: var(--space-5);
}

.page-head h1 {
  font-size: var(--text-xl);
  max-width: 26ch;
}

.page-head .lede {
  max-width: 60ch;
}

.form > .btn {
  justify-self: start;
}