/* AKM site chrome — M1 visual system (light editorial) */

:root {
  --color-paper: oklch(97% 0.012 85);
  --color-paper-2: oklch(94% 0.012 85);
  --color-paper-3: oklch(90% 0.012 85);
  --color-ink: oklch(17% 0.01 60);
  --color-ink-muted: oklch(45% 0.01 60);
  --color-accent: var(--color-ink);
  --color-accent-hot: oklch(28% 0.01 60);
  --color-rule: oklch(17% 0.01 60 / 0.14);
  --color-focus: var(--color-ink);
  --color-danger: oklch(62% 0.18 25);

  --font-display: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-body: var(--font-display);
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --text-display: clamp(2.25rem, 4vw + 1rem, 4rem);
  --text-display-s: clamp(1.75rem, 3vw + 0.5rem, 2.5rem);
  --text-see-all: clamp(2rem, 3vw + 1rem, 3rem);
  --text-4xl: 2rem;
  --text-xl: 1.25rem;
  --text-base: 1rem;
  --text-sm: 0.875rem;
  --text-xs: 0.75rem;
  --text-nav: 0.8rem;

  --space-3xs: 0.25rem;
  --space-2xs: 0.5rem;
  --space-xs: 0.75rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  --measure: 36rem;
  --max: 80rem;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --radius-pill: 999px;
  --radius-md: 0.75rem;
  --radius-home: 2rem;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in: cubic-bezier(0.64, 0, 0.78, 0);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 150ms;
  --dur: 280ms;

  --nav-h: 3.75rem;
  --sticky-h: 4.5rem;
}

body.akm-funnel {
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body.akm-funnel a:focus-visible,
body.akm-funnel button:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

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

.akm-skip-link:focus {
  position: fixed;
  left: var(--gutter);
  top: var(--space-sm);
  z-index: 300;
  width: auto;
  height: auto;
  margin: 0;
  padding: var(--space-xs) var(--space-sm);
  clip: auto;
  overflow: visible;
  background: var(--color-paper);
  color: var(--color-ink);
  border: 1px solid var(--color-rule);
  font-size: var(--text-sm);
  text-decoration: none;
}

/* ——— Header + nav ——— */
.akm-chrome-header {
  position: relative;
  z-index: 100;
  background: var(--color-paper);
  border-bottom: 1px solid var(--color-rule);
}

.akm-reel-root {
  isolation: isolate;
}

body.akm-wall-page .akm-chrome-header {
  position: fixed;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 200;
  background: linear-gradient(
    180deg,
    oklch(97% 0.012 85 / 0.96) 0%,
    oklch(97% 0.012 85 / 0.78) 65%,
    oklch(97% 0.012 85 / 0) 100%
  );
  border-bottom-color: transparent;
}

body.akm-reel-home .akm-chrome-header {
  position: fixed;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 200;
  background: oklch(97% 0.012 85 / 0.96);
  border-bottom: 1px solid transparent;
  transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}

body.akm-reel-home .akm-chrome-header.is-scrolled {
  background: var(--color-paper);
  border-bottom-color: var(--color-rule);
}

body.akm-reel-home .akm-reel-root section.bg-ink h1,
body.akm-reel-home .akm-reel-root section.bg-ink h2,
body.akm-reel-home .akm-reel-root section.bg-ink h3,
body.akm-reel-home .akm-reel-root section.bg-ink .font-display,
body.akm-reel-home .akm-reel-root .bg-ink .font-display {
  color: oklch(97% 0.012 85) !important;
}

body.akm-reel-home .akm-reel-root section.bg-ink a.border,
body.akm-reel-home .akm-reel-root section.bg-ink a[class*='border-paper'] {
  color: oklch(97% 0.012 85) !important;
  border-color: oklch(97% 0.012 85 / 0.65) !important;
}

body.akm-reel-home .akm-reel-root section.bg-ink a.bg-paper {
  color: var(--color-ink) !important;
}

.akm-chrome-header .site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  max-width: var(--max);
  margin: 0 auto;
  min-height: var(--nav-h);
  padding: var(--space-sm) var(--gutter);
}

.site-nav .nav__mark {
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-ink);
  text-decoration: none;
  flex-shrink: 0;
}

body.akm-wall-page .akm-chrome-header .site-nav.nav {
  position: static;
  inset: auto;
  height: auto;
  mix-blend-mode: normal;
  pointer-events: none;
}

body.akm-wall-page .akm-chrome-header .site-nav a,
body.akm-wall-page .akm-chrome-header .site-nav button {
  pointer-events: auto;
}

.site-nav__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-xs) var(--space-md);
}

.site-nav__links a {
  color: var(--color-ink);
  text-decoration: none;
  font-size: var(--text-nav);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: opacity var(--dur-fast) var(--ease-out);
}

.site-nav__links a:hover,
.site-nav__links a[aria-current="page"] {
  opacity: 0.55;
}

.site-nav__links a.nav__cta {
  opacity: 1;
  font-weight: 700;
  color: var(--color-paper) !important;
  background: var(--color-ink);
  padding: 0.45rem 1rem;
  border-radius: var(--radius-pill);
}

.site-nav__links a.nav__cta:hover {
  background: var(--color-accent-hot);
  opacity: 1;
}

.site-nav__toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-pill);
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: inherit;
  font-size: var(--text-nav);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
}

.site-nav__sheet {
  display: none;
}

@media (max-width: 767px) {
  .site-nav__toggle {
    display: inline-flex;
  }

  .site-nav__links--desktop {
    display: none;
  }

  .site-nav__sheet {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 200;
    padding: calc(var(--nav-h) + var(--space-lg)) var(--gutter) var(--space-xl);
    background: var(--color-paper);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--dur) var(--ease-out), visibility var(--dur) var(--ease-out);
  }

  .site-nav__sheet.is-open {
    opacity: 1;
    visibility: visible;
  }

  .site-nav__sheet-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    max-width: 20rem;
  }

  .site-nav__sheet-links a {
    font-size: 1.35rem;
    font-weight: 300;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--color-ink);
    text-decoration: none;
  }

  .site-nav__sheet-links a.nav__cta {
    display: inline-flex;
    align-self: flex-start;
    margin-top: var(--space-sm);
    font-size: var(--text-nav);
    font-weight: 700;
    letter-spacing: 0.06em;
    padding: 0.65rem 1.25rem;
    color: var(--color-paper) !important;
    background: var(--color-ink);
    border-radius: var(--radius-pill);
  }

  .site-nav__sheet-close {
    position: absolute;
    top: var(--space-sm);
    right: var(--gutter);
    padding: 0.5rem 0.75rem;
    border: 0;
    background: transparent;
    font: inherit;
    font-size: var(--text-nav);
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-ink);
    cursor: pointer;
  }
}

@media (min-width: 768px) {
  .site-nav__sheet {
    display: none !important;
  }
}

/* Legacy: nav injected without site-header wrapper */
body.akm-funnel > .site-nav:not(.akm-chrome-header .site-nav),
body.akm-has-site-nav > .site-nav:not(.akm-chrome-header .site-nav) {
  display: none;
}

/* ——— Footer ——— */
.akm-chrome-footer {
  margin-top: var(--space-2xl);
  padding: var(--space-xl) var(--gutter) var(--space-lg);
  border-top: 1px solid var(--color-rule);
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
}

.akm-chrome-footer__inner {
  max-width: var(--max);
  margin: 0 auto;
}

.akm-chrome-footer__grid {
  display: grid;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .akm-chrome-footer__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md) var(--space-lg);
  }
}

.akm-chrome-footer__heading {
  margin: 0 0 var(--space-sm);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-family: var(--font-body);
}

.akm-chrome-footer__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
}

.akm-chrome-footer__list a {
  color: var(--color-ink);
  text-decoration: none;
  font-size: var(--text-sm);
}

.akm-chrome-footer__list a:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.akm-chrome-footer__muted {
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
  line-height: 1.5;
}

.akm-chrome-footer__about {
  margin: var(--space-lg) 0 0;
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-rule);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  max-width: var(--measure);
}

.akm-chrome-footer__fine {
  margin: var(--space-sm) 0 0;
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.akm-chrome-footer .akm-btn--primary {
  margin-top: var(--space-xs);
}

/* Sticky Book bar — phones only */
@media (min-width: 768px) {
  .akm-sticky-cta {
    display: none !important;
  }

  body.akm-funnel {
    padding-bottom: 0 !important;
  }
}

@media (max-width: 767px) {
  body.akm-funnel {
    padding-bottom: calc(var(--sticky-h) + env(safe-area-inset-bottom, 0px));
  }

  .akm-sticky-cta__copy {
    display: none;
  }

  .akm-sticky-cta__inner {
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-nav__sheet {
    transition: none;
  }
}