/* ==========================================================================
   Layout — container, header/nav, sections, footer, grids
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

section {
  padding-block: var(--space-16);
  border-bottom: var(--border-hair);
}

section:last-of-type {
  border-bottom: none;
}

.section-head {
  max-width: 46rem;
  margin-bottom: var(--space-10);
}

.section-head--center {
  margin-inline: auto;
  text-align: center;
}

/* ---- Header ---- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: rgba(10, 10, 11, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.site-header.is-scrolled {
  border-bottom-color: var(--color-charcoal-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: var(--space-4);
}

.nav__list {
  display: none;
}

.site-header .nav__cta {
  display: none;
}

@media (min-width: 900px) {
  .nav__list {
    display: flex;
    gap: var(--space-6);
    font-size: var(--fs-small);
    letter-spacing: var(--tracking-mid);
  }

  .nav__list a {
    position: relative;
    padding-block: var(--space-1);
    color: var(--color-white-dim);
    transition: color var(--dur-fast) var(--ease);
  }

  .nav__list a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 100%;
    bottom: -2px;
    height: 1px;
    background: var(--gradient-metal);
    transition: right var(--dur) var(--ease);
  }

  .nav__list a:hover,
  .nav__list a:focus-visible {
    color: var(--color-white);
  }

  .nav__list a:hover::after,
  .nav__list a:focus-visible::after {
    right: 0;
  }

  .site-header .nav__cta {
    display: inline-flex;
  }

  .site-header__inner {
    gap: var(--space-8);
  }

  .site-header__inner > .nav {
    flex: 1;
    display: flex;
    justify-content: center;
  }
}

/* ---- Hero ---- */

.hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 100svh;
  padding-block: var(--space-12);
  overflow: hidden;
  border-bottom: var(--border-hair);
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 20%;
}

.hero__scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(10, 10, 11, 0.88) 0%, rgba(10, 10, 11, 0.6) 45%, rgba(10, 10, 11, 0.25) 78%),
    linear-gradient(0deg, rgba(10, 10, 11, 0.95) 0%, rgba(10, 10, 11, 0.35) 45%, rgba(10, 10, 11, 0.15) 100%);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 44rem;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-eyebrow);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-metal-300);
  margin-bottom: var(--space-6);
}

.hero__title {
  font-size: var(--fs-hero);
  letter-spacing: -0.01em;
  text-transform: uppercase;
  margin-bottom: var(--space-6);
}

.hero__lede {
  font-size: var(--fs-lead);
  color: var(--color-white-dim);
  max-width: 38rem;
  margin-bottom: var(--space-8);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* ---- Grids ---- */

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--color-charcoal-border);
  border: 1px solid var(--color-charcoal-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

@media (min-width: 700px) {
  .pillar-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.phase-grid {
  display: grid;
  gap: var(--space-5);
}

@media (min-width: 800px) {
  .phase-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.trust-grid {
  display: grid;
  gap: var(--space-5);
}

@media (min-width: 700px) {
  .trust-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.philosophy-grid {
  display: grid;
  gap: var(--space-10);
}

@media (min-width: 900px) {
  .philosophy-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: start;
  }
}

.hour-timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-5);
  padding-top: var(--space-6);
  list-style: none;
}

.hour-timeline::before {
  content: "";
  position: absolute;
  top: calc(var(--space-6) + 18px);
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-metal);
  opacity: 0.5;
}

@media (max-width: 800px) {
  .hour-timeline {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    padding-top: 0;
  }

  .hour-timeline::before {
    top: 0;
    bottom: 0;
    left: 18px;
    right: auto;
    width: 1px;
    height: auto;
  }
}

/* ---- Twelve-week arc timeline ---- */

.arc-timeline__track {
  position: relative;
  height: 2px;
  background: var(--color-charcoal-border);
  border-radius: 999px;
  margin-bottom: var(--space-10);
}

.arc-timeline__track::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-metal);
  border-radius: 999px;
  opacity: 0.55;
}

.arc-timeline__marker {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--color-white);
  border: 3px solid var(--color-black);
  box-shadow: 0 0 0 1px var(--color-metal-300);
}

.arc-timeline__marker--open {
  background: var(--color-black);
  box-shadow: 0 0 0 1px var(--color-metal-500);
}

/* ---- Philosophy reveal (scroll-triggered statements) ---- */

.philosophy-reveal {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
  text-align: center;
  padding-block: var(--space-10) var(--space-16);
  max-width: 48rem;
  margin-inline: auto;
}

.philosophy-reveal__line {
  font-size: clamp(1.5rem, 1vw + 1.5rem, 2.25rem);
  font-weight: 700;
  line-height: var(--lh-snug);
  color: var(--color-white-faint);
}

.philosophy-reveal__line--emphasis {
  color: var(--color-white);
  font-size: clamp(1.75rem, 1.4vw + 1.5rem, 2.75rem);
  background: var(--gradient-metal);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ---- Founding CTA ---- */

.founding {
  position: relative;
  background: linear-gradient(180deg, var(--color-charcoal), var(--color-black));
}

.founding__inner {
  max-width: 50rem;
  text-align: center;
  margin-inline: auto;
}

.founding__actions {
  display: flex;
  justify-content: center;
  margin-top: var(--space-8);
}

/* ---- Footer ---- */

.site-footer {
  padding-block: var(--space-10) var(--space-8);
}

.site-footer__top {
  display: grid;
  gap: var(--space-8);
  padding-bottom: var(--space-8);
  border-bottom: var(--border-hair);
  margin-bottom: var(--space-6);
}

@media (min-width: 800px) {
  .site-footer__top {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
}

.site-footer__col h3 {
  font-size: var(--fs-eyebrow);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-metal-300);
  margin-bottom: var(--space-4);
}

.site-footer__col ul {
  display: grid;
  gap: var(--space-3);
}

.site-footer__col a {
  color: var(--color-white-dim);
  transition: color var(--dur-fast) var(--ease);
}

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

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
  font-size: var(--fs-small);
  color: var(--color-white-faint);
}

/* ---- Reveal-on-scroll ---- */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}