/* ============================================================================
   SITE SHEET — nuttakitkundum.com landing pages (index, about)
   Brandmark header, grain hero, fanned feature cards, flat card grids,
   footer grid. Loaded AFTER theme.css.
   ========================================================================= */

html { scroll-behavior: smooth; }
*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  padding-inline: var(--gutter);
  font-size: 16px;
  line-height: 1.7;
}

.page {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: clamp(3.5rem, 8vw, 7rem);
}

main { display: flex; flex-direction: column; gap: clamp(3rem, 6vw, 5rem); }

/* ---------------------------------------------------------------- header */
header.site-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 76px;
  background: none;
  border: 0;
}
.brandmark {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.0625rem;
  letter-spacing: -.03em;
  white-space: nowrap;
}
.brandmark:hover { color: var(--ink); }
.brandmark svg { width: 23px; height: 22px; flex: none; }
.site-nav {
  display: flex;
  gap: clamp(1.1rem, 3vw, 2.5rem);
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -.03em;
}
.site-nav a { color: var(--ink); text-decoration: none; transition: opacity .14s var(--ease-standard); }
.site-nav a:hover { opacity: .6; color: var(--ink); }
.site-nav a[aria-current="page"]::after {
  content: "";
  display: inline-block;
  width: 4px;
  height: 4px;
  margin-left: .2em;
  vertical-align: middle;
  border-radius: 50%;
  background: var(--signal);
}

/* ------------------------------------------------------------------ hero */
.hero { display: flex; flex-direction: column; gap: clamp(1.5rem, 3vw, 2.5rem); padding-top: clamp(1rem, 4vw, 3rem); }
.hero-h1 {
  margin: 0;
  font-size: clamp(3.5rem, 11vw, 7.5rem);
  line-height: .9;
  letter-spacing: var(--track-display);
}
.hero-h1 .lead { display: block; }
.particle-text {
  --particle-pad: clamp(24px, 4vw, 42px);
  position: relative;
  width: fit-content;
  max-width: 100%;
  color: var(--signal);
  font-style: normal;
  font-weight: 600;
  touch-action: pan-y;
}
.particle-text canvas {
  position: absolute;
  z-index: 1;
  top: calc(-1 * var(--particle-pad));
  left: calc(-1 * var(--particle-pad));
  width: calc(100% + var(--particle-pad) + var(--particle-pad));
  height: calc(100% + var(--particle-pad) + var(--particle-pad));
  pointer-events: none;
}
.particle-text.is-particle-ready { color: transparent; }
.particle-text.is-particle-ready::selection { color: var(--paper); background: var(--signal); }
.hero-sub { font-size: 1.125rem; line-height: 1.5; max-width: 38ch; margin: 0; }
.hero-sub em { font-style: normal; color: var(--signal); }
.hero-sub strong { font-weight: 500; color: var(--signal); }

/* ----------------------------------------------------------- feature fan */
/* ------------------------------------------------------- article carousel */
.carousel[hidden] { display: none; }
.carousel { display: flex; flex-direction: column; gap: .25rem; }
.carousel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .75rem 1.5rem;
}
.carousel-head h2 { margin: 0; font-size: clamp(1.75rem, 3.2vw, 2.5rem); line-height: 1.2; }
.carousel-controls { display: flex; align-items: center; gap: .5rem; }
.carousel-status {
  margin-right: .5rem;
  font-size: .75rem;
  letter-spacing: var(--track-wider);
  color: var(--ash);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.carousel-btn {
  padding: .5rem 1rem;
  background: transparent;
  color: var(--ink);
  border: 2px solid var(--ink);
  border-radius: var(--radius-xl);
  font-size: .9375rem;
  line-height: 1.2;
  cursor: pointer;
}
.carousel-btn:hover:not(:disabled) { background: var(--ink); color: var(--paper-2); }
.carousel-btn:disabled { opacity: .3; cursor: default; }

.carousel-track {
  display: flex;
  gap: 1.25rem;
  margin: 0 calc(-1 * var(--gutter));
  padding: 2.5rem var(--gutter) 3.5rem;
  list-style: none;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: var(--gutter);
  scrollbar-width: none;
}
.carousel-track::-webkit-scrollbar { display: none; }
.carousel-track:focus-visible { outline-offset: -4px; }
.carousel-item { flex: 0 0 auto; scroll-snap-align: start; }
/* a tighter shadow than the fan: the scrolling track clips anything wider */
.carousel-item .fan-card { margin-inline: 0; box-shadow: 0 12px 32px rgba(8, 11, 18, .14); }
.carousel-item .fan-card:hover { box-shadow: 0 18px 36px rgba(8, 11, 18, .22); }
.carousel-item .fc-name,
.carousel-item .fc-claim { display: -webkit-box; -webkit-box-orient: vertical; overflow: hidden; }
.carousel-item .fc-name { -webkit-line-clamp: 3; }
.carousel-item .fc-claim { -webkit-line-clamp: 2; min-height: 0; }
.carousel-item .fc-img { min-height: 96px; }
.fan-card {
  --tilt: 0deg;
  --fc-bg: var(--fill-mist);
  --fc-ink: var(--ink);
  --fc-tag: var(--ink-05);
  position: relative;
  display: flex;
  flex-direction: column;
  width: 228px;
  max-width: 100%;
  aspect-ratio: 377 / 560;
  margin-inline: 4px;
  background: var(--fc-bg);
  color: var(--fc-ink);
  text-decoration: none;
  border: 1px solid rgba(0, 0, 0, .1);
  border-radius: var(--radius-3xl);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transform: rotate(var(--tilt));
  transition: transform .34s var(--ease-out), box-shadow .34s var(--ease-out);
}
.fan-card:hover {
  z-index: 2;
  color: var(--fc-ink);
  transform: rotate(calc(var(--tilt) * .7)) translateY(-8px) scale(1.02);
  box-shadow: 0 32px 100px rgba(8, 11, 18, .3);
}
.fc-sapphire { --fc-bg: var(--fill-sapphire); --fc-ink: var(--paper-2); --fc-tag: var(--paper-14); }
.fc-midnight { --fc-bg: var(--fill-midnight); --fc-ink: var(--paper-2); --fc-tag: var(--paper-14); }
.fc-tan { --fc-bg: var(--fill-tan); }
.fc-slate { --fc-bg: var(--fill-slate); }

.fc-head { position: relative; display: flex; flex-direction: column; gap: .6rem; padding: 3.5rem 1.5rem .25rem; }
.fc-tag {
  position: absolute;
  top: 1.125rem;
  right: 1.125rem;
  padding: .3rem .65rem;
  background: var(--fc-tag);
  border-radius: var(--radius-pill);
  font-size: .6875rem;
  line-height: 1.3;
  letter-spacing: var(--track-wider);
  text-transform: uppercase;
  white-space: nowrap;
}
.fc-name { font-family: var(--font-display); font-weight: 600; font-size: 1.4375rem; line-height: 1.15; letter-spacing: var(--track-tighter); }
.fc-claim { margin: 0; font-family: var(--font-display); font-weight: 500; letter-spacing: -.01em; line-height: 1.35; min-height: 2.7em; }
.fc-img { flex: 1 1 auto; min-height: 0; position: relative; }
.fc-img svg { position: absolute; inset: 0; width: 100%; height: 100%; }

/* -------------------------------------------------------------- sections */
.shelves h2,
.shelf-head h2 { margin: 0; font-size: clamp(1.75rem, 3.2vw, 2.5rem); line-height: 1.2; }

section.shelf { display: flex; flex-direction: column; gap: 1.5rem; scroll-margin-top: 1.5rem; }

.shelf-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: .35rem 1.25rem; }
.shelf-head .sub { margin: 0; flex: 1 1 22ch; color: var(--ash); font-size: .875rem; }
.shelf-head .count {
  font-size: .6875rem;
  font-weight: 500;
  letter-spacing: var(--track-wider);
  text-transform: uppercase;
  color: var(--bronze);
  white-space: nowrap;
}

/* ------------------------------------------------------------- card grid */
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.card-grid:has(> .entry:only-child) { grid-template-columns: minmax(0, 1fr); }
.card-grid:has(> .entry:only-child) .entry p { max-width: 88ch; }

.entry {
  --hover: var(--fill-mist);
  --hover-ink: var(--ink);
  --hover-pill: var(--ink-10);
  display: flex;
  flex-direction: column;
  gap: .7rem;
  min-height: 14rem;
  padding: 1.5rem;
  background: var(--paper-2);
  color: var(--ink);
  border-radius: var(--radius-2xl);
  text-decoration: none;
  transition: background-color .22s var(--ease-standard), color .22s var(--ease-standard);
}
a.entry:hover, .entry:hover { background: var(--hover); color: var(--hover-ink); }
.entry:hover .kind { background: var(--hover-pill); }

.entry .kind {
  align-self: flex-start;
  padding: .3rem .7rem;
  border-radius: var(--radius-pill);
  background: var(--ink-05);
  font-size: .6875rem;
  line-height: 1.3;
  letter-spacing: var(--track-wider);
  text-transform: uppercase;
  transition: background-color .22s var(--ease-standard);
}
.entry h3 {
  margin: 0;
  font-size: 1.3125rem;
  line-height: 1.2;
  letter-spacing: -.03em;
  color: inherit;
}
.entry p {
  margin: 0;
  flex: 1;
  font-size: .8125rem;
  line-height: 1.65;
  opacity: .82;
}
.entry p strong, .entry p em { color: inherit; }
.entry p strong { font-weight: 600; }
.entry p code { font-size: .75rem; color: inherit; background: var(--ink-05); }
.entry .path { font-size: .75rem; color: inherit; opacity: .7; }

/* hover fills, one per kind of page */
.k-drill, .k-mccfr  { --hover: var(--fill-sapphire); --hover-ink: var(--paper-2); --hover-pill: var(--paper-14); }
.k-cfr,   .k-paper  { --hover: var(--fill-midnight); --hover-ink: var(--paper-2); --hover-pill: var(--paper-14); }
.k-quiz,  .k-note   { --hover: var(--fill-tan); }
.k-deep,  .k-lesson { --hover: var(--fill-slate); }
.k-metric, .k-tool  { --hover: var(--fill-mist); }

/* ---------------------------------------------------------------- footer */
footer.site-footer { margin: 0; padding: 0 0 1.5rem; border: 0; font-size: 1rem; color: var(--ink); }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(2, 1fr);
  gap: 2rem;
  padding-bottom: 2.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--edge);
}
.footer-grid .note { margin: .75rem 0 0; max-width: 34ch; font-size: .8125rem; color: var(--ash); }
.eyebrow {
  margin: 0 0 1rem;
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: var(--track-wider);
  text-transform: uppercase;
  color: var(--bronze);
}
.footer-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .5rem; }
.footer-list a { font-family: var(--font-display); font-weight: 500; letter-spacing: -.01em; color: var(--ink); text-decoration: none; }
.footer-list a:hover { color: var(--ink); text-decoration: underline; text-underline-offset: .18em; text-decoration-color: var(--signal); }
.footer-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: .75rem 2rem;
  font-size: .75rem;
  color: var(--ash);
}

/* ---------------------------------------------------------------- motion */
@media (prefers-reduced-motion: no-preference) {
  .rise { animation: rise .6s var(--ease-out) backwards; }
  .d1 { animation-delay: .06s; }
  .d2 { animation-delay: .14s; }
  .d3 { animation-delay: .22s; }
  .d4 { animation-delay: .3s; }
  @keyframes rise { from { opacity: 0; transform: translateY(10px); } }
  .carousel-item:nth-child(-n+6) .fan-card { animation: deal .8s var(--ease-out) backwards; }
  .carousel-item:nth-child(2) .fan-card { animation-delay: .06s; }
  .carousel-item:nth-child(3) .fan-card { animation-delay: .12s; }
  .carousel-item:nth-child(4) .fan-card { animation-delay: .18s; }
  .carousel-item:nth-child(5) .fan-card { animation-delay: .24s; }
  .carousel-item:nth-child(6) .fan-card { animation-delay: .3s; }
  @keyframes deal { from { opacity: 0; transform: translateY(40px) rotate(0deg); } }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .fan-card, .fan-card:hover { transition: none; }
  .particle-text canvas { display: none; }
  .particle-text.is-particle-ready { color: var(--signal); }
}

/* ------------------------------------------------------------ responsive */
@media (max-width: 900px) {
  .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .fan-card { width: min(100%, 320px); margin-inline: 0; --tilt: 0deg !important; }
  .carousel-item .fan-card { width: min(72vw, 260px); }
  .carousel-track { gap: 1rem; padding-block: 1.5rem 2.5rem; }
  .card-grid { grid-template-columns: minmax(0, 1fr); }
  .entry { min-height: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > :first-child { grid-column: 1 / -1; }
}
@media (max-width: 480px) {
  .site-nav .wide { display: none; }
}