/* main.css - StephenStrachan.com
   Premium, cinematic, institutional single stylesheet
*/

:root {
  --color-bg: #050608;
  --color-bg-elevated: #0c0f13;
  --color-bg-soft: #12161c;
  --color-sand: #e2dfd7;         /* now a neutral warm off-white */
  --color-sand-soft: #cac6be;    /* soft neutral for legacy uses */
  --color-ivory: #f4f1ea;
  --color-muted: #9ca1af;
  --color-border: #262b33;
  --color-accent-blue: #4a5563;  /* unused, kept neutral */
  --color-accent-green: #4b5563; /* unused, kept neutral */
  --color-error: #d46b6b;

  --font-serif: "Playfair Display", "Times New Roman", serif;
  --font-sans: "IBM Plex Sans", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;

  --page-max-width: 1240px;
  --page-gutter: 4rem;

  /* Spacing system (desktop defaults) */
  --space-section: 100px;           /* target spacing between major sections */
  --space-section-tight: 64px;      /* tighter variant for compact bands */
  --space-heading-text: 25px;       /* H1/H2 → intro text */
  --space-heading-content: 50px;    /* heading/intro group → content */

  --transition-fast: 160ms ease-out;
  --transition-med: 240ms ease-out;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  color: var(--color-ivory);
  background: radial-gradient(circle at top, #151922 0, #050608 55%);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-ivory);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  color: #ffffff;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

main {
  display: block;
}

.section {
  padding: var(--space-section) 1.25rem;
}

.section--tight {
  padding-top: calc(var(--space-section-tight) / 2);
  padding-bottom: calc(var(--space-section-tight) / 2);
}

.section__inner {
  max-width: var(--page-max-width);
  margin: 0 auto;
}

.section__eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 0.75rem;
}

.section__title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 2.25rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  line-height: 1.1;
  margin: 0 0 var(--space-heading-text);
}

.section__lede {
  max-width: 44rem;
  font-size: 1.02rem;
  line-height: 1.6;
  color: var(--color-muted);
}

/* Intro → content spacing: grid/cards/lists that follow intros */
.section__inner > .section__lede + .grid,
.section__inner > .section__lede + .page-subgrid {
  margin-top: var(--space-heading-content);
}

/* Layout */

.page-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-shell__main {
  flex: 1 0 auto;
}

.page-shell__footer {
  flex-shrink: 0;
}

/* Header & navigation */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px);
  background: linear-gradient(to bottom, rgba(5, 6, 8, 0.96), rgba(5, 6, 8, 0.8));
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.site-header__inner {
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: 25px 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-brand {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.site-brand__title {
  font-family: var(--font-serif);
  font-size: 1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-brand__subtitle {
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  line-height: 1.25;
  color: var(--color-muted);
}

.site-nav-toggle {
  display: none;
  border: 1px solid var(--color-border);
  background: rgba(9, 11, 15, 0.9);
  color: var(--color-ivory);
  border-radius: 999px;
  padding: 0.4rem 0.75rem;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: none;
}

.site-nav-toggle__icon {
  width: 1.1rem;
  height: 1.1rem;
  display: inline-block;
  margin-left: 0.35rem;
  position: relative;
}

.site-nav-toggle__icon-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-ivory);
  transition: transform var(--transition-med), opacity var(--transition-med), top var(--transition-med), bottom var(--transition-med);
}

.site-nav-toggle__icon-line:nth-child(1) {
  top: 0.25rem;
}

.site-nav-toggle__icon-line:nth-child(2) {
  top: 0.55rem;
}

.site-nav-toggle__icon-line:nth-child(3) {
  bottom: 0.25rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
}

.site-nav__link {
  position: relative;
  padding-bottom: 0.25rem;
  color: var(--color-muted);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: rgba(244, 241, 234, 0.55);
  border-radius: 999px;
  transition: width var(--transition-fast);
}

.site-nav__link:hover::after,
.site-nav__link:focus-visible::after {
  width: 100%;
}

/* Keep nav text color stable on hover; rely on subtle underline instead */
.site-nav__link:hover,
.site-nav__link:focus-visible {
  color: inherit;
}

.site-nav__link--active {
  color: var(--color-ivory);
}

.site-nav__link--active::after {
  width: 100%;
}

/* Ensure critical label stays on one line on desktop */
.site-nav__link--globa {
  white-space: nowrap;
}

/* Hero */

.hero {
  padding: var(--space-section) 1.25rem calc(var(--space-heading-content) / 2);
}

.hero__inner {
  max-width: var(--page-max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 2.4rem;
  align-items: start;
}

.hero__eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 0.8rem;
}

.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(2.45rem, 3vw + 1.5rem, 3.1rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 0.4rem;
}

.hero__roles {
  font-size: 0.88rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 1.1rem;
}

.hero__body {
  font-size: 1.02rem;
  line-height: 1.6;
  color: var(--color-muted);
  max-width: 34rem;
}

.hero__micro {
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--color-muted);
}

.hero__actions {
  margin-top: 1.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.45rem;
  padding: 0.6rem 1.5rem;
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid transparent;
  cursor: pointer;
  background: none;
  color: inherit;
  transition: background var(--transition-med), border-color var(--transition-med), transform var(--transition-fast), box-shadow var(--transition-fast);
}

/* Hero CTA buttons – text with underline treatment */
.hero__actions .button {
  border-radius: 0.45rem;
  padding: 0.6rem 1.5rem;
  background: none;
  box-shadow: none;
  border-width: 1px;
  font-size: 0.76rem;
  letter-spacing: 0.1em;
}

.button--primary {
  background: var(--color-ivory);
  color: #050608;
  border-color: rgba(0, 0, 0, 0.18);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.45);
}

.button--primary:hover,
.button--primary:focus-visible {
  color: #050608;
  transform: translateY(-1px);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.65);
}

/* Primary hero CTA: sand underline on hover */
.hero__actions .button::after {
  content: none;
}

.hero__actions .button--primary {
  background: var(--color-ivory);
  color: #050608;
  border-color: rgba(0, 0, 0, 0.18);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.4);
}

.button--ghost {
  border-color: rgba(244, 241, 234, 0.2);
  color: var(--color-ivory);
  background: rgba(12, 15, 19, 0.4);
}

.button--ghost:hover,
.button--ghost:focus-visible {
  border-color: rgba(244, 241, 234, 0.5);
  background: rgba(18, 22, 28, 0.8);
}

/* Secondary hero CTA: muted underline */
.hero__actions .button--ghost {
  background: none;
  border-color: rgba(244, 241, 234, 0.3);
}

.button--subtle {
  border-radius: 0;
  padding-inline: 0;
  border-bottom: 1px solid rgba(244, 241, 234, 0.22);
  border-top: none;
  border-left: none;
  border-right: none;
  border-radius: 0;
}

.button--subtle:hover,
.button--subtle:focus-visible {
  border-bottom-color: rgba(244, 241, 234, 0.8);
}

.hero__image-shell {
  position: relative;
  min-height: 320px;
  max-width: 420px;
  margin-left: auto;
  border-radius: 0.5rem;
  overflow: hidden;
  background: #050608;
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.55);
}

.hero__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 24%;
  filter: contrast(1.0) saturate(1.0);
}

/* Proof ribbon — editorial credibility strip */

.proof-ribbon {
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  background: transparent;
}

.proof-ribbon__inner {
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: 1.35rem 1.25rem;
  display: flex;
  align-items: baseline;
  gap: 2rem;
}

.proof-ribbon__label {
  font-size: 0.63rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(154, 161, 176, 0.42);
  white-space: nowrap;
  flex-shrink: 0;
  margin: 0;
}

.proof-ribbon__items {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0 0.3rem;
  font-size: 0.74rem;
  letter-spacing: 0.03em;
  color: var(--color-muted);
  line-height: 1.6;
}

.proof-ribbon__items > span { white-space: nowrap; }

.proof-ribbon__sep {
  color: rgba(154, 161, 176, 0.25);
  font-size: 0.7rem;
  user-select: none;
}

.proof-ribbon__asterisk {
  font-size: 0.6em;
  line-height: 1;
  vertical-align: super;
  color: rgba(154, 161, 176, 0.45);
  margin-left: 0.05em;
}

/* Cards & grids */

.grid {
  display: grid;
  gap: 2rem;
}

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

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

/* Home: Selected Work preview inside bordered block – make the two cards feel substantial */
.section--tight .bordered-block .grid--two {
  grid-template-columns: minmax(0, 1fr);
  gap: 1.6rem;
}

.card {
  border-radius: 1.1rem;
  padding: 1.75rem 1.75rem 1.7rem;
  background: linear-gradient(to bottom right, rgba(11, 13, 18, 0.98), rgba(9, 11, 16, 0.98));
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.card__eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 0.9rem;
}

.card__title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0 0.75rem;
}

.card__meta {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-muted);
  margin-bottom: 0.9rem;
}

.card__body {
  font-size: 0.93rem;
  line-height: 1.6;
  color: var(--color-muted);
}

.card--subtle {
  background: linear-gradient(to bottom, rgba(11, 14, 19, 0.98), rgba(7, 9, 13, 0.98));
}

/* Lists */

.meta-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  display: grid;
  gap: 0.5rem;
}

.meta-list__item {
  font-size: 0.88rem;
  color: var(--color-muted);
}

.meta-label {
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.68rem;
  color: rgba(154, 161, 176, 0.9);
  margin-bottom: 0.08rem;
}

.meta-value {
  display: block;
  color: var(--color-ivory);
}

/* Page-specific helpers */

.page-title {
  font-family: var(--font-serif);
  font-size: 2.3rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.1;
  margin: 0 0 var(--space-heading-text);
}

.page-intro {
  max-width: 40rem;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-muted);
  margin: 0 0 var(--space-heading-content);
}

.page-subgrid {
  margin-top: var(--space-heading-content);
  display: grid;
  gap: 2.25rem;
}

.page-subgrid--two {
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1.4fr);
}

.page-subsection-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  line-height: 1.1;
  margin: 0 0 0.65rem;
}

.page-subsection-body {
  font-size: 0.96rem;
  line-height: 1.6;
  color: var(--color-muted);
}

.bordered-block {
  border-radius: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
  background: linear-gradient(to bottom right, rgba(10, 12, 16, 0.98), rgba(7, 9, 13, 0.98));
  padding: 1.75rem 1.75rem 1.4rem;
}

/* About page layout */
.about-intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(0, 1.1fr);
  gap: var(--space-heading-content);
  align-items: flex-start;
}

.about-at-a-glance {
  font-size: 0.86rem;
}

.about-at-a-glance__title {
  margin: 0 0 0.75rem;
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.about-at-a-glance__list {
  list-style: none;
  padding: 0;
  margin: 0 0 0.85rem;
  display: grid;
  gap: 0.35rem;
}

.about-at-a-glance__note {
  margin: 0;
  font-size: 0.74rem;
  color: var(--color-muted);
}

.about-thesis-block {
  margin-top: var(--space-heading-content);
}

.about-thesis-text {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.6;
  color: var(--color-muted);
}

.about-timeline-grid {
  margin-top: var(--space-section-tight);
}

.about-timeline-grid section {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 1.4rem;
}

.about-timeline-grid section:first-of-type {
  border-top: none;
  padding-top: 0;
}

.about-timeline-feature {
  grid-column: 1 / -1;
}

.breadcrumb {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 1rem;
}

.breadcrumb a {
  color: inherit;
}

.breadcrumb span {
  opacity: 0.7;
}

/* Press & sources */

.sources-section + .sources-section {
  margin-top: 2.5rem;
}

.sources-section__title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  line-height: 1.12;
  margin: 0 0 0.7rem;
}

.sources-section__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.7rem;
}

.sources-section__item-title {
  font-size: 0.95rem;
}

.sources-section__item-meta {
  font-size: 0.8rem;
  color: var(--color-muted);
}

/* Forms */

.form {
  display: grid;
  gap: 1.25rem;
  max-width: 40rem;
}

.form__row {
  display: grid;
  gap: 1.25rem;
}

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

.form__field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form__label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-muted);
}

.form__hint {
  font-size: 0.8rem;
  color: var(--color-muted);
}

.form__control {
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: rgba(9, 11, 15, 0.98);
  color: var(--color-ivory);
  padding: 0.7rem 1rem;
  font-size: 0.92rem;
  font-family: var(--font-sans);
}

.form__control--textarea {
  min-height: 8rem;
  border-radius: 1.1rem;
  resize: vertical;
}

.form__control:focus-visible {
  outline: none;
  border-color: rgba(244, 241, 234, 0.8);
  box-shadow: 0 0 0 1px rgba(244, 241, 234, 0.5);
}

.form__footnote {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-top: 0.75rem;
}

/* Footer */

.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  background: #050608;
}

.site-footer__inner {
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: 1.9rem 1.25rem 2.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2.5rem;
  align-items: center;
  justify-content: space-between;
}

.site-footer__meta {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.78rem;
  color: var(--color-muted);
}

.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.78rem;
}

.site-footer__nav a {
  color: var(--color-muted);
}

.site-footer__nav a:hover,
.site-footer__nav a:focus-visible {
  color: var(--color-ivory);
}

/* Media queries */

@media (max-width: 960px) {
  .hero__inner,
  .page-subgrid--two {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero__image-shell {
    order: -1;
  }

  .section {
    padding-inline: 1.25rem;
  }
}

@media (max-width: 820px) {
  :root {
    --space-section: 80px;
    --space-section-tight: 56px;
    --space-heading-text: 20px;
    --space-heading-content: 40px;
  }

  .site-header__inner {
    padding-inline: 1.25rem;
  }

  .site-nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: fixed;
    inset: 3.3rem 0 auto;
    padding: 0.85rem 1.25rem 1.1rem;
    background: linear-gradient(to bottom, rgba(5, 6, 8, 0.99), rgba(5, 6, 8, 0.96));
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    flex-wrap: wrap;
    gap: 0.9rem 1.5rem;
    justify-content: flex-start;
    transition: transform var(--transition-med), opacity var(--transition-med);
  }

  .site-header--nav-open .site-nav {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .site-header--nav-open .site-nav-toggle__icon-line:nth-child(1) {
    top: 0.55rem;
    transform: rotate(42deg);
  }

  .site-header--nav-open .site-nav-toggle__icon-line:nth-child(2) {
    opacity: 0;
  }

  .site-header--nav-open .site-nav-toggle__icon-line:nth-child(3) {
    bottom: auto;
    top: 0.55rem;
    transform: rotate(-42deg);
  }
}

@media (max-width: 640px) {
  .section {
    padding-inline: 1.1rem;
    padding-top: calc(var(--space-section) / 2.6);
    padding-bottom: calc(var(--space-section) / 2.6);
  }

  .hero {
    padding-inline: 1.1rem;
    padding-top: calc(var(--space-section) / 2.4);
  }

  .hero__title {
    font-size: 2.4rem;
  }

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

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

  .page-subgrid {
    gap: 1.8rem;
  }

  .site-footer__inner {
    align-items: flex-start;
  }
}

/* ─── v1 premium polish additions ────────────────────────────────────────── */

/* Hero portrait: subtle edge-fade to integrate with page */
.hero__image-shell::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, transparent 50%, rgba(5, 6, 8, 0.72) 100%),
    linear-gradient(to right, rgba(5, 6, 8, 0.38) 0%, transparent 26%);
  pointer-events: none;
}

/* Card number prefix — pillar / operating-model cards */
.card__number {
  display: block;
  font-size: 0.6rem;
  letter-spacing: 0.28em;
  color: rgba(154, 161, 176, 0.34);
  margin-bottom: 0.9rem;
}

/* Elevated card variant */
.card--featured {
  background: linear-gradient(135deg, rgba(15, 18, 25, 0.99) 0%, rgba(11, 14, 20, 0.99) 100%);
  border-color: rgba(255, 255, 255, 0.07);
  box-shadow: 0 2px 22px rgba(0, 0, 0, 0.32);
}

/* Infrastructure pillar stack — 4-col module */
.infra-stack {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 0.85rem;
  overflow: hidden;
  margin-top: 3rem;
}

.infra-stack__item {
  background: linear-gradient(to bottom, rgba(11, 13, 19, 0.99), rgba(8, 10, 15, 0.99));
  padding: 1.35rem 1.15rem;
}

.infra-stack__index {
  display: block;
  font-size: 0.57rem;
  letter-spacing: 0.22em;
  color: rgba(154, 161, 176, 0.34);
  margin-bottom: 0.55rem;
}

.infra-stack__label {
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-sand-soft);
  line-height: 1.4;
}

/* About page: timeline era layout */
.timeline-grid {
  margin-top: var(--space-section-tight);
}

.timeline-era {
  display: grid;
  grid-template-columns: 108px 1fr;
  gap: 2.5rem;
  padding: 2.1rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.timeline-era:first-child {
  border-top: none;
  padding-top: 0;
}

.timeline-era__period {
  font-size: 0.66rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: rgba(154, 161, 176, 0.46);
  line-height: 1.65;
  padding-top: 0.2rem;
}

/* AlUla: visually elevated — the differentiator */
.timeline-era--feature {
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 0.9rem;
  padding: 2rem 2.1rem;
  margin: 0.3rem 0;
  background: linear-gradient(135deg, rgba(14, 17, 24, 0.97) 0%, rgba(9, 11, 16, 0.97) 100%);
  grid-template-columns: 108px 1fr;
}

/* Selected work: category header with extending rule */
.work-cat {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  margin-bottom: 1.85rem;
  font-family: var(--font-sans);
}

.work-cat__label {
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-muted);
  white-space: nowrap;
  font-weight: 400;
}

.work-cat__rule {
  flex: 1;
  height: 1px;
  background: rgba(255, 255, 255, 0.05);
}

/* Writing page: prominent feature card for Lead Rider */
.card--writing-feature {
  padding: 2.1rem 2.1rem 2rem;
}

.card--writing-feature .card__title {
  font-size: 1.25rem;
  margin-bottom: 0.6rem;
}

/* Contact: two-column split layout */
.contact-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.55fr);
  gap: 4.5rem;
  align-items: flex-start;
  margin-top: 3rem;
}

.contact-split .form {
  max-width: none;
}

.contact-info__label {
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 1.1rem;
}

.contact-info__note {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--color-muted);
  margin: 0 0 1.6rem;
}

.contact-info__types {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.5rem;
}

.contact-info__type {
  font-size: 0.82rem;
  color: rgba(154, 161, 176, 0.78);
  padding-left: 1rem;
  position: relative;
  line-height: 1.45;
}

.contact-info__type::before {
  content: '—';
  position: absolute;
  left: 0;
  color: rgba(154, 161, 176, 0.32);
  font-size: 0.7rem;
  top: 0.1rem;
}

.contact-info__globa-note {
  margin-top: 2rem;
  padding-top: 1.4rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.78rem;
  line-height: 1.65;
  color: rgba(154, 161, 176, 0.68);
}

/* Press & Sources: grouped source blocks */
.source-group {
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 0.9rem;
  overflow: hidden;
  margin-bottom: 2.25rem;
}

.source-group__header {
  padding: 0.85rem 1.4rem;
  background: rgba(11, 14, 19, 0.8);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.source-group__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-ivory);
  font-weight: 500;
}

.source-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  align-items: start;
  padding: 1rem 1.4rem;
  background: linear-gradient(to right, rgba(9, 11, 16, 0.99), rgba(7, 9, 14, 0.99));
  border-bottom: 1px solid rgba(255, 255, 255, 0.038);
}

.source-row:last-child {
  border-bottom: none;
}

.source-row__title {
  font-size: 0.86rem;
  line-height: 1.45;
  margin-bottom: 0.25rem;
}

.source-row__meta {
  font-size: 0.74rem;
  color: var(--color-muted);
  line-height: 1.52;
}

.source-row__badge {
  font-size: 0.6rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: rgba(154, 161, 176, 0.6);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.044);
  border-radius: 999px;
  padding: 0.22rem 0.65rem;
  white-space: nowrap;
  align-self: center;
  margin-top: 0.15rem;
}

/* CTA band — end-of-page invitation */
.cta-band {
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding: calc(var(--space-section) * 1.15) 1.25rem;
  background: linear-gradient(to bottom, rgba(8, 10, 15, 0.45), rgba(5, 6, 8, 0.6));
}

.cta-band__inner {
  max-width: var(--page-max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 3rem;
  align-items: center;
}

.cta-band__title {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 2vw + 0.55rem, 1.9rem);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1.17;
  margin: 0;
  color: var(--color-ivory);
}

.cta-band__body {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--color-muted);
  margin: 0.8rem 0 0;
}

.cta-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.75rem;
}

/* Responsive additions */
@media (max-width: 960px) {
  .infra-stack {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .timeline-era,
  .timeline-era--feature {
    grid-template-columns: 80px 1fr;
    gap: 1.5rem;
  }

  .contact-split {
    grid-template-columns: minmax(0, 1fr);
    gap: 2.5rem;
  }

  .cta-band__inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 1.75rem;
  }
}

@media (max-width: 640px) {
  .infra-stack {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .timeline-era,
  .timeline-era--feature {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.65rem;
  }

  .timeline-era--feature {
    padding: 1.4rem;
  }

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

  .source-row__badge {
    margin-top: 0.35rem;
    align-self: start;
    width: fit-content;
  }
}

/* ─── Motion & Animation System ─────────────────────────────────────────── */

/* Keyframes */
@keyframes sc-fade-up {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes sc-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ── Page-load entrance ──────────────────────────────────────────────────
   html.js is added by an inline <script> in <head> before the stylesheet,
   so elements are hidden from first paint — never visible-then-invisible.
   main.js adds html.page-loaded via requestAnimationFrame, which applies
   the entrance animation. Since elements start hidden (matching the
   animation `from` state), there is no flash on navigation.
   Without JS: html.js never present, all elements remain visible.
   ─────────────────────────────────────────────────────────────────────── */

/* Home page hero — start hidden */
html.js .hero__eyebrow,
html.js .hero__title,
html.js .hero__roles,
html.js .hero__body,
html.js .hero__micro,
html.js .hero__actions,
html.js .proof-ribbon {
  opacity: 0;
  transform: translateY(10px);
}
html.js .hero__image-shell { opacity: 0; }

/* Inner page intros — start hidden */
html.js .breadcrumb,
html.js .page-title,
html.js .page-intro {
  opacity: 0;
  transform: translateY(10px);
}

/* Load-in — entrance animation triggered when page-loaded added to <html>.
   Using animation (not transition) so it fires reliably in all contexts.
   fill-mode: backwards keeps `from` state during delay (element stays hidden);
   explicit CSS opacity/transform ensures element stays visible after animation. */
html.js.page-loaded .hero__eyebrow,
html.js.page-loaded .hero__title,
html.js.page-loaded .hero__roles,
html.js.page-loaded .hero__body,
html.js.page-loaded .hero__micro,
html.js.page-loaded .hero__actions,
html.js.page-loaded .proof-ribbon,
html.js.page-loaded .breadcrumb,
html.js.page-loaded .page-title,
html.js.page-loaded .page-intro {
  opacity: 1;
  transform: translateY(0);
  animation: sc-fade-up 600ms cubic-bezier(0.16, 1, 0.3, 1) backwards;
}
html.js.page-loaded .hero__image-shell {
  opacity: 1;
  animation: sc-fade-in 600ms cubic-bezier(0.16, 1, 0.3, 1) backwards;
}

/* Staggered delays — home hero */
html.js.page-loaded .hero__eyebrow     { animation-delay: 30ms; }
html.js.page-loaded .hero__title       { animation-delay: 130ms; }
html.js.page-loaded .hero__roles       { animation-delay: 220ms; }
html.js.page-loaded .hero__body        { animation-delay: 300ms; }
html.js.page-loaded .hero__micro       { animation-delay: 370ms; }
html.js.page-loaded .hero__actions     { animation-delay: 440ms; }
html.js.page-loaded .hero__image-shell { animation-delay: 500ms; }
html.js.page-loaded .proof-ribbon      { animation-delay: 560ms; }

/* Staggered delays — inner page intros */
html.js.page-loaded .breadcrumb { animation-delay: 30ms; }
html.js.page-loaded .page-title { animation-delay: 130ms; }
html.js.page-loaded .page-intro { animation-delay: 250ms; }

/* ── Scroll reveal ───────────────────────────────────────────────────────
   .reveal class is added by JS only to elements starting below the fold,
   so elements already in the viewport are never hidden by JS.
   ─────────────────────────────────────────────────────────────────────── */

html.js .reveal {
  opacity: 0;
  transform: translateY(16px);
}
html.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  animation: sc-fade-up 640ms cubic-bezier(0.16, 1, 0.3, 1) backwards;
  animation-delay: calc(var(--reveal-i, 0) * 60ms);
}

/* ── Card hover ──────────────────────────────────────────────────────────── */
.card {
  transition:
    transform 300ms cubic-bezier(0.16, 1, 0.3, 1),
    border-color 300ms ease,
    box-shadow 300ms ease;
}
.card:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.58);
}
.card--featured:hover {
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.68);
}

/* ── Source row hover ────────────────────────────────────────────────────── */
.source-row {
  transition: background 240ms ease;
}
.source-row:hover {
  background: rgba(255, 255, 255, 0.022);
}

/* ── Form: smooth focus transitions ──────────────────────────────────────── */
.form__control {
  transition: border-color 220ms ease, box-shadow 220ms ease;
}

/* ── Infra stack: subtle item hover ──────────────────────────────────────── */
.infra-stack__item {
  transition: background 260ms ease;
}
.infra-stack__item:hover {
  background: linear-gradient(to bottom, rgba(15, 18, 26, 0.99), rgba(11, 13, 20, 0.99));
}

/* ── Bordered block hover ────────────────────────────────────────────────── */
.bordered-block {
  transition: border-color 280ms ease;
}
.bordered-block:hover {
  border-color: rgba(255, 255, 255, 0.09);
}

/* ── Reduced motion ──────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
  /* Ensure hidden load-seq elements become visible immediately */
  html.js .hero__eyebrow,
  html.js .hero__title,
  html.js .hero__roles,
  html.js .hero__body,
  html.js .hero__micro,
  html.js .hero__actions,
  html.js .hero__image-shell,
  html.js .proof-ribbon,
  html.js .breadcrumb,
  html.js .page-title,
  html.js .page-intro,
  html.js .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}