/* =========================================================================
   THE BLACK SHAMROCK — stylesheet
   Monochrome campaign site. Built HTML-first but structured so the markup
   maps cleanly onto WordPress template parts (header / footer / blocks).
   Design tokens live in :root so a future theme can expose them via
   theme.json or the Customizer.
   ========================================================================= */

/* ----- Design tokens ---------------------------------------------------- */
:root {
  --black: #000000;
  --white: #ffffff;
  --ink-soft: #111111;
  --line: rgba(255, 255, 255, 0.35);   /* hairline on dark */
  --line-dark: rgba(0, 0, 0, 0.85);    /* hairline on light */

  --font-display: "Archivo Black", "Arial Black", sans-serif;
  --font-sans: "Archivo", system-ui, sans-serif;
  --font-serif: "EB Garamond", Georgia, "Times New Roman", serif;

  /* Fluid type scale — hero sized so the longest line ("The Black
     Shamrock", 18 chars in Archivo Black) fits the content width on one
     line at every breakpoint. */
  --step-hero: clamp(1.55rem, 6.5vw, 5.9rem);
  --step-h2:   clamp(1.5rem, 3.4vw, 2.6rem);
  --step-lead: clamp(1.05rem, 1.5vw, 1.35rem);
  --step-body: clamp(1rem, 1.15vw, 1.15rem);

  --wrap: 1360px;
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --header-h: 92px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ----- Reset / base ----------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--white);
  color: var(--black);
  font-family: var(--font-serif);
  font-size: var(--step-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }

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

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

/* ----- Buttons ---------------------------------------------------------- */
.btn {
  --btn-bg: var(--black);
  --btn-fg: var(--white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5em;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  letter-spacing: .01em;
  line-height: 1;
  padding: .95em 1.9em;
  border-radius: 999px;
  border: 1.5px solid var(--btn-bg);
  background: var(--btn-bg);
  color: var(--btn-fg);
  white-space: nowrap;
  transition: background-color .35s var(--ease),
              color .35s var(--ease),
              transform .35s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn--light { --btn-bg: var(--white); --btn-fg: var(--black); }
.btn--light:hover { background: transparent; color: var(--white); border-color: var(--white); }
.btn--dark:hover { background: transparent; color: var(--black); border-color: var(--black); }

/* =========================================================================
   SITE HEADER  (WP: header.php)
   Layout uses absolutely-positioned brand (left) + nav group so the group
   can slide smoothly between centred and right-aligned. States:
   • base            → brand left, nav group right, white text (About page,
                        and the home header once dark)
   • .header--hero   → home hero start: brand hidden, nav group centred,
                        black text over the white hero
   • .is-dark        → black bar, white text, brand shown, group right
   ========================================================================= */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  color: var(--white);
  transition: background-color .45s var(--ease), color .45s var(--ease),
              box-shadow .45s var(--ease);
}
.site-header__inner {
  position: relative;
  min-height: var(--header-h);
  border-bottom: 1px solid var(--line);
  transition: border-color .45s var(--ease);
}

/* Dark bar (home once the shamrock has filled; About once scrolled) */
.site-header.is-dark,
.site-header.is-scrolled {
  background: var(--black);
  color: var(--white);
  box-shadow: 0 10px 40px rgba(0, 0, 0, .25);
}
.site-header.is-dark .site-header__inner,
.site-header.is-scrolled .site-header__inner { border-bottom-color: transparent; }

/* --- Brand (logo + wordmark), absolutely pinned left --- */
.brand {
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  gap: .85rem;
  transition: opacity .5s var(--ease), transform .5s var(--ease), visibility .5s;
}
.brand__mark {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--white);
  display: grid;
  place-items: center;
  overflow: hidden;
  flex: none;
}
.brand__mark img { width: 68%; height: 68%; object-fit: contain; }
.brand__name {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  letter-spacing: .01em;
}

/* --- Nav group (links + Order button), absolutely positioned so it can
       animate from centre to right via `left` + `transform` --- */
.site-header__group {
  position: absolute;
  top: 50%; left: 100%;
  transform: translate(-100%, -50%);
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 1.75rem);
  transition: left .6s var(--ease), transform .6s var(--ease);
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 3vw, 2.75rem);
  font-family: var(--font-serif);
  font-size: 1.2rem;
}
.nav a {
  position: relative;
  padding-block: .35em;
  white-space: nowrap;
  opacity: .92;
  transition: opacity .3s var(--ease);
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s var(--ease);
}
.nav a:hover { opacity: 1; }
.nav a:hover::after,
.nav a.is-active::after { transform: scaleX(1); }

/* --- Order button: pill that inverts with the bar --- */
.order-btn {
  --btn-bg: var(--white); --btn-fg: var(--black);
  background: var(--btn-bg); color: var(--btn-fg);
  border-color: var(--btn-bg);
}
.order-btn:hover { background: transparent; color: currentColor; border-color: currentColor; }

/* ---- HOME HERO START: brand hidden, group centred, dark text ---- */
.site-header.header--hero:not(.is-dark) { color: var(--black); }
.site-header.header--hero:not(.is-dark) .site-header__inner { border-bottom-color: transparent; }
.site-header.header--hero:not(.is-dark) .brand {
  opacity: 0; visibility: hidden; transform: translateY(-50%) translateX(-10px);
}
.site-header.header--hero:not(.is-dark) .site-header__group {
  left: 50%;
  transform: translate(-50%, -50%);
}
.site-header.header--hero:not(.is-dark) .order-btn {
  --btn-bg: var(--black); --btn-fg: var(--white);
  background: var(--btn-bg); color: var(--btn-fg); border-color: var(--btn-bg);
}

/* Mid-scroll: the shamrock has darkened the top, so invert the header text
   to white — nav stays centred, logo stays hidden (that arrives with .is-dark) */
.site-header.header--hero.is-inverted:not(.is-dark) { color: var(--white); }
.site-header.header--hero.is-inverted:not(.is-dark) .order-btn {
  --btn-bg: var(--white); --btn-fg: var(--black);
  background: var(--btn-bg); color: var(--btn-fg); border-color: var(--btn-bg);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  position: absolute;
  right: 0; top: 50%;
  transform: translateY(-50%);
  width: 46px; height: 46px;
  border: 0; background: transparent;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 50%; top: 50%;
  width: 26px; height: 2px;
  background: currentColor;
  transform: translate(-50%, -50%);
  transition: transform .35s var(--ease), opacity .2s var(--ease);
}
.nav-toggle span::before { transform: translate(-50%, -9px); }
.nav-toggle span::after  { transform: translate(-50%, 7px); }
body.nav-open .nav-toggle span { background: transparent; }
body.nav-open .nav-toggle span::before { transform: translate(-50%, -50%) rotate(45deg); }
body.nav-open .nav-toggle span::after  { transform: translate(-50%, -50%) rotate(-45deg); }

/* =========================================================================
   SHAMROCK HERO — HOME
   White scene, small black shamrock above a black headline. On scroll the
   hero is pinned while the shamrock scales up (GSAP) until it fills the
   viewport — turning the scene black. The headline uses mix-blend-mode:
   difference, so it auto-inverts to white against the growing black mark,
   always crisp because the backdrop is only ever pure black or pure white.
   ========================================================================= */
.hero {
  position: relative;
  background: var(--white);
  overflow: clip;
}
.hero__shamrock {
  position: absolute;
  z-index: -1;                 /* behind the headline, still same context */
  left: 50%; top: 42%;
  width: clamp(150px, 20vw, 280px);
  transform: translate(-50%, -50%);
  color: var(--black);
}
.hero__shamrock-inner {
  transform: scale(.5);
  transform-origin: 50% 50%;
  will-change: transform;
}
.hero__shamrock svg { display: block; width: 100%; height: auto; fill: currentColor; }

.hero__inner {
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  padding-top: var(--header-h);
  padding-bottom: clamp(2.5rem, 8vh, 6rem);
}
.pin-title {
  margin: 0;
  color: #000;                 /* JS scrubs black -> white as it fills */
  position: relative;
  z-index: 1;
  font-family: var(--font-display);
  font-weight: 400;
  text-transform: uppercase;
  font-size: var(--step-hero);
  line-height: .93;
  letter-spacing: -0.035em;
}
.pin-title .l { display: block; }
.pin-title .l > span { display: block; white-space: nowrap; will-change: transform, opacity; }

/* =========================================================================
   MANIFESTO — HOME  (white) — sits directly under the released headline
   ========================================================================= */
.manifesto {
  background: var(--white);
  color: var(--black);
  padding-block: clamp(2rem, 6vh, 3.5rem) clamp(4rem, 12vh, 8rem);
}
.statement__meta {
  max-width: 46ch;
  font-size: var(--step-lead);
  line-height: 1.5;
}
.statement__meta .eyebrow {
  display: block;
  font-family: var(--font-sans);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .18em;
  font-size: .78rem;
  margin-bottom: 1rem;
}

/* =========================================================================
   ABOUT HERO  (image + diagonal cut + wordmark)
   ========================================================================= */
.page-hero {
  position: relative;
  min-height: 92svh;
  background: #b9bcc0;
  overflow: hidden;
  display: flex;
}
.page-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.page-hero__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 35%;
  filter: grayscale(1) contrast(1.05);
  will-change: transform;
}
/* Diagonal black wedge, bottom-right */
.page-hero__wedge {
  position: absolute;
  right: 0; bottom: 0;
  width: 62%; height: 62%;
  background: var(--black);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  z-index: 1;
}
.page-hero__label {
  position: relative;
  z-index: 2;
  margin-top: auto;
  margin-left: auto;
  padding: 0 var(--gutter) clamp(1.5rem, 5vh, 3rem);
  font-family: var(--font-display);
  text-transform: uppercase;
  color: var(--white);
  font-size: clamp(3.5rem, 12vw, 10rem);
  line-height: .9;
  letter-spacing: -0.01em;
}

/* =========================================================================
   ARTICLE  (About long-form body)
   ========================================================================= */
.article {
  padding-block: clamp(3.5rem, 9vh, 7rem);
}
.article__body {
  max-width: 68ch;
  margin-inline: auto;
  font-size: clamp(1.05rem, 1.25vw, 1.25rem);
  line-height: 1.7;
}
.article__body > * + * { margin-top: 1.4em; }
.article__body p { margin: 0; }
.article__body .drop {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.05em;
}
.article__figure {
  margin: clamp(3rem, 8vh, 6rem) auto 0;
  max-width: 860px;
  background: var(--black);
  border-radius: 4px;
  overflow: hidden;
}
.article__figure img { width: 100%; }

/* =========================================================================
   ORDER CTA  (reused block — WP: template-parts/cta-order.php)
   ========================================================================= */
.order {
  padding-block: clamp(3.5rem, 9vh, 7rem);
}
.order__grid {
  display: grid;
  grid-template-columns: minmax(180px, 240px) 1fr;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: start;
}
.order__aside { display: flex; flex-direction: column; gap: 1.5rem; }
.order__badge { width: clamp(120px, 14vw, 170px); }
.order__title {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: var(--step-h2);
  line-height: 1.12;
  margin: 0 0 1.1rem;
  letter-spacing: -0.01em;
}
.order__text { max-width: 52ch; margin: 0; }

/* =========================================================================
   NEWSLETTER + FOOTER  (WP: footer.php)
   ========================================================================= */
.site-footer { padding-block: clamp(2.5rem, 6vh, 4.5rem) clamp(2rem, 5vh, 3rem); }
.site-footer__rule { height: 1.5px; background: var(--black); margin-bottom: clamp(2rem, 5vh, 3rem); }

.signup { display: grid; gap: .75rem; }
.signup__fields {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 1rem;
}
.signup input {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  padding: 1.1rem 1.25rem;
  border: 1.5px solid var(--black);
  border-radius: 4px;
  background: var(--white);
  color: var(--black);
  width: 100%;
}
.signup input::placeholder { color: rgba(0,0,0,.55); }
.signup input:focus-visible { outline: 2px solid var(--black); outline-offset: 2px; }
.signup .btn { align-self: stretch; }
.signup__note { margin: .35rem 0 0; font-size: 1.05rem; }

.site-footer__bottom {
  margin-top: clamp(2.5rem, 7vh, 4.5rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.site-footer__bottom .rule-top {
  border-top: 1.5px solid var(--black);
  padding-top: 1.25rem;
}
.legal { display: flex; align-items: center; gap: 1rem; font-size: 1.05rem; }
.legal .sep { opacity: .5; }
.social { display: flex; align-items: center; gap: 1rem; }
.social a {
  display: grid; place-items: center;
  width: 44px; height: 44px;
  transition: transform .3s var(--ease);
}
.social a:hover { transform: translateY(-3px); }
.social svg { width: 30px; height: 30px; }

/* =========================================================================
   SCROLL CUE — fixed, animated, clicks to the next section
   mix-blend-mode keeps it legible over the white->black hero and every
   section below (reads black on light, white on dark).
   ========================================================================= */
.scroll-cue {
  position: fixed;
  left: 50%;
  bottom: clamp(1rem, 3.5vh, 2.25rem);
  transform: translateX(-50%);
  z-index: 90;
  width: 56px; height: 56px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  background: transparent;
  color: #fff;
  mix-blend-mode: difference;
  cursor: pointer;
  transition: opacity .45s var(--ease), transform .45s var(--ease);
}
.scroll-cue__ring {
  width: 56px; height: 56px;
  border: 1.5px solid currentColor;
  border-radius: 999px;
  display: grid;
  place-items: center;
}
.scroll-cue__arrow {
  width: 26px; height: 26px;
  animation: cueBounce 1.9s var(--ease) infinite;
}
.scroll-cue:hover { transform: translateX(-50%) translateY(3px); }
.scroll-cue.is-hidden { opacity: 0; pointer-events: none; transform: translateX(-50%) translateY(12px); }
@keyframes cueBounce {
  0%, 100% { transform: translateY(-3px); opacity: .55; }
  50%      { transform: translateY(3px);  opacity: 1; }
}

/* =========================================================================
   Scroll-reveal helper (JS toggles .is-in; GSAP also targets these)
   ========================================================================= */
[data-reveal] { opacity: 0; transform: translateY(28px); }
.no-js [data-reveal],
.is-in[data-reveal],
[data-reveal].is-in { opacity: 1; transform: none; }

/* =========================================================================
   RESPONSIVE
   ========================================================================= */
@media (max-width: 900px) {
  :root { --header-h: 74px; }

  .site-header__group { display: none; }
  .nav-toggle { display: block; }
  /* On mobile the brand is anchored left and always shown (no centred nav) */
  .site-header.header--hero:not(.is-dark) .brand { opacity: 1; visibility: visible; transform: translateY(-50%); }

  /* Slide-down mobile menu */
  .mobile-menu {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    background: var(--black);
    color: var(--white);
    display: grid;
    gap: .25rem;
    padding: 1.5rem var(--gutter) 2.25rem;
    transform: translateY(-120%);
    transition: transform .5s var(--ease);
    z-index: 99;
    border-bottom: 1px solid var(--line);
  }
  body.nav-open .mobile-menu { transform: translateY(0); }
  .mobile-menu a {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    padding: .6rem 0;
  }
  .mobile-menu .btn { margin-top: 1rem; justify-self: start; }

  .order__grid { grid-template-columns: 1fr; }
  .order__aside { flex-direction: row; align-items: center; gap: 1.25rem; }
  .order__badge { width: 96px; }

  .signup__fields { grid-template-columns: 1fr; }

  .site-footer__bottom { flex-direction: column; align-items: flex-start; gap: 1.5rem; }
}

/* The desktop mobile-menu element stays hidden on large screens */
@media (min-width: 901px) {
  .mobile-menu { display: none; }
}

@media (max-width: 560px) {
  .brand__name { font-size: 1.15rem; }
  .brand__mark { width: 44px; height: 44px; }
  .hero__cue { display: none; }
  .page-hero__wedge { width: 78%; height: 46%; }
}

/* Respect reduced motion — neutralise reveal offsets */
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .scroll-cue__arrow { animation: none; }
}