/* ——— Reset + Base ——— */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "ss01", "cv11";
  min-height: 100vh;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
  color: var(--color-ink);
}
h1 { font-size: var(--text-hero); }
h2 { font-size: var(--text-3xl); letter-spacing: -0.025em; }
h3 { font-size: var(--text-xl); letter-spacing: -0.015em; }
h4 { font-size: var(--text-lg); font-family: var(--font-body); font-weight: 600; letter-spacing: -0.005em; }

p { line-height: var(--leading-normal); }
p + p { margin-top: 1em; }

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--dur-fast) var(--ease-out);
}
a:hover { color: var(--color-accent-hover); }

button {
  font-family: inherit;
  font-size: inherit;
  background: none;
  border: 0;
  cursor: pointer;
  color: inherit;
}

::selection { background: var(--color-accent); color: var(--color-bg); }

/* Focus — visible, brand-consistent */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ——— Layout primitives ——— */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-x);
}
.container--narrow { max-width: 880px; }
.container--wide   { max-width: 1320px; }

section { padding-block: var(--section-y); }

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: currentColor;
  display: inline-block;
}

.lead {
  font-size: var(--text-lg);
  line-height: 1.5;
  color: var(--color-ink-muted);
  max-width: var(--measure);
}

/* ——— Buttons ——— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  border-radius: 999px;
  text-decoration: none;
  transition: all var(--dur-base) var(--ease-out);
  border: 1px solid transparent;
  white-space: nowrap;
  cursor: pointer;
}
.btn--primary {
  background: var(--color-accent);
  color: #FBFAF6;
}
.btn--primary:hover {
  background: var(--color-accent-hover);
  color: #FBFAF6;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn--ghost {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-border);
}
.btn--ghost:hover {
  background: var(--color-ink);
  color: var(--color-bg);
  border-color: var(--color-ink);
}
.btn--light {
  background: var(--color-surface);
  color: var(--color-ink);
  border-color: var(--color-border);
}
.btn--light:hover { background: var(--color-bg); border-color: var(--color-ink); }

.btn .arrow { transition: transform var(--dur-base) var(--ease-out); }
.btn:hover .arrow { transform: translateX(3px); }

/* ——— Header ——— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-bg) 92%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-base) var(--ease-out);
}
.site-header.is-scrolled { border-bottom-color: var(--color-border-soft); }
.site-header__inner,
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
  gap: 2rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  color: var(--color-ink);
}
.brand:hover { color: var(--color-ink); }
.brand__mark { width: 36px; height: 36px; flex-shrink: 0; color: var(--color-accent); }
.brand__logo {
  display: block;
  width: 132px;
  height: auto;
  flex-shrink: 0;
}
.brand__wordmark {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1;
}
.brand__wordmark span {
  display: block;
  font-family: var(--font-body);
  font-size: 0.625rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
  margin-top: 2px;
}

.nav { display: none; }
.nav__list {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 1.45vw, 1.65rem);
  list-style: none;
  padding: 0;
  margin: 0;
}
.nav__item {
  position: relative;
}
.nav__link {
  font-size: var(--text-sm);
  color: var(--color-ink);
  text-decoration: none;
  font-weight: 450;
  position: relative;
  padding-block: 0.25rem;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 1px;
  background: var(--color-accent);
  transform-origin: left;
  transform: scaleX(0);
  transition: transform var(--dur-base) var(--ease-out);
}
.nav__link:hover { color: var(--color-accent); }
.nav__link:hover::after, .nav__link[aria-current="page"]::after { transform: scaleX(1); }
.nav__link[aria-current="page"] { color: var(--color-accent); }
.nav__link--menu {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.nav__link--menu::before {
  content: "";
  width: 0.35rem;
  height: 0.35rem;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-1px);
  order: 2;
  opacity: 0.7;
}
.nav__submenu {
  position: absolute;
  top: calc(100% + 0.8rem);
  left: 50%;
  transform: translate(-50%, 8px);
  min-width: 240px;
  padding: 0.55rem;
  margin: 0;
  list-style: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-bg) 94%, white);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out), visibility var(--dur-base) var(--ease-out);
  z-index: 120;
}
.nav__submenu::before {
  content: "";
  position: absolute;
  inset: -0.85rem 0 auto 0;
  height: 0.85rem;
}
.nav__item--has-menu:hover .nav__submenu,
.nav__item--has-menu:focus-within .nav__submenu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0);
}
.nav__submenu a {
  display: block;
  padding: 0.72rem 0.85rem;
  border-radius: calc(var(--radius-md) - 6px);
  color: var(--color-ink);
  text-decoration: none;
  font-size: var(--text-sm);
  line-height: 1.2;
  white-space: nowrap;
}
.nav__submenu a:hover,
.nav__submenu a:focus {
  color: var(--color-accent);
  background: var(--color-surface);
  outline: none;
}

.header__cta { display: none; }

.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface);
}
.menu-toggle__bars {
  display: block;
  width: 18px;
  height: 12px;
  position: relative;
}
.menu-toggle__bars::before,
.menu-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  height: 1.5px;
  background: var(--color-ink);
  transition: transform var(--dur-base) var(--ease-out);
}
.menu-toggle__bars::before { top: 2px; }
.menu-toggle__bars::after { bottom: 2px; }
.menu-toggle[aria-expanded="true"] .menu-toggle__bars::before { transform: translateY(4px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-toggle__bars::after { transform: translateY(-4px) rotate(-45deg); }

/* Mobile menu drawer */
.mobile-nav {
  position: fixed;
  inset: 64px 0 0 0;
  background: var(--color-bg);
  padding: var(--container-x);
  transform: translateY(-12px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
  z-index: 90;
  overflow-y: auto;
}
.mobile-nav.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.mobile-nav__list {
  list-style: none;
  padding: 1.5rem 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.mobile-nav__link {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  color: var(--color-ink);
  text-decoration: none;
  padding-block: 0.75rem;
  border-bottom: 1px solid var(--color-border-soft);
}
.mobile-nav__sublink {
  display: block;
  padding: 0.55rem 0 0.55rem 1rem;
  border-bottom: 1px solid var(--color-border-soft);
  color: var(--color-ink-muted);
  text-decoration: none;
  font-size: var(--text-base);
  font-weight: 500;
}
.mobile-nav__sublink::before {
  content: "↳";
  margin-right: 0.5rem;
  color: var(--color-accent);
}
.mobile-nav__sublink:hover,
.mobile-nav__sublink:focus {
  color: var(--color-accent);
  outline: none;
}
.mobile-nav__cta {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

@media (min-width: 880px) {
  .nav { display: block; }
  .header__cta { display: inline-flex; }
  .menu-toggle { display: none; }
  .mobile-nav { display: none; }
}

/* ——— Footer ——— */
.site-footer {
  background: var(--color-ink);
  color: #C7CFCB;
  padding-block: var(--space-20) var(--space-8);
}
.site-footer h4 {
  color: #FBFAF6;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.site-footer a {
  color: #C7CFCB;
  text-decoration: none;
  font-size: var(--text-sm);
  line-height: 2;
}
.site-footer a:hover { color: #FBFAF6; text-decoration: underline; }
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}
@media (min-width: 720px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 3rem; }
}
.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid #2C3733;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: #7E8884;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  color: #FBFAF6;
}
.footer-brand .brand__mark { color: #6FA29C; }
.footer-brand .brand__logo {
  width: 150px;
  height: auto;
}
.footer-brand .brand__wordmark { color: #FBFAF6; }
.footer-brand .brand__wordmark span { color: #7E8884; }
.footer-disclaimer {
  font-size: var(--text-xs);
  color: #7E8884;
  line-height: 1.55;
  max-width: 56ch;
}
.footer-disclaimer p + p { margin-top: 0.75rem; }

/* ——— Skip link ——— */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--color-ink);
  color: var(--color-bg);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  z-index: 200;
  text-decoration: none;
}
.skip-link:focus { top: 1rem; }