/* ==========================================================================
   Intentional Curriculum Design — site styles (v2)
   Palette: ink / paper / wash / slate / mark (highlighter) / line
   Type: Archivo (display) · Source Serif 4 (body) · IBM Plex Mono (utility)
   ========================================================================== */

:root {
  --ink:   #111315;
  --paper: #ffffff;
  --wash:  #e4e8e1;
  --slate: #4f555a;
  --mark:  #f3c63f;
  --line:  #cdd1c9;

  --display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --body: "Source Serif 4", Georgia, "Times New Roman", serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;

  --gutter: clamp(1.25rem, 5vw, 4rem);
  --measure: 72rem;
  --measure-wide: 86rem;
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: clamp(1.02rem, 0.98rem + 0.25vw, 1.15rem);
  line-height: 1.65;
  font-optical-sizing: auto;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

::selection { background: var(--mark); color: var(--ink); }

:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: var(--paper);
  padding: 0.6rem 1rem;
  font-family: var(--mono); font-size: 0.8rem; z-index: 100;
}
.skip:focus { left: 0.5rem; top: 0.5rem; }

/* ---------- layout ---------- */

.shell {
  width: 100%;
  max-width: var(--measure);
  margin: 0 auto;
  padding-inline: var(--gutter);
}
.shell--wide { max-width: var(--measure-wide); }

.band { padding-block: clamp(3.5rem, 8vw, 6.5rem); }
.band--wash { background: var(--wash); }
.band--tight { padding-block: clamp(2.5rem, 5vw, 4rem); }

/* the highlighter — used sparingly, never as a text colour */
.mark {
  background-image: linear-gradient(var(--mark), var(--mark));
  background-repeat: no-repeat;
  background-size: 100% 0.42em;
  background-position: 0 78%;
  padding-inline: 0.06em;
}

/* ---------- section headings (formerly the small mono eyebrows) ---------- */

.section-head {
  font-family: var(--display);
  font-weight: 700;
  font-stretch: 108%;
  font-size: clamp(1.02rem, 0.94rem + 0.4vw, 1.28rem);
  line-height: 1.2;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--ink);
  margin: 0;
  padding-top: 1.05rem;
  position: relative;
}
.section-head::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 2.75rem; height: 6px;
  background: var(--mark);
}

/* small mono label kept for the page eyebrow above an h1 */
.eyebrow {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate);
  margin: 0 0 1.25rem;
}

/* ---------- header ---------- */

.masthead {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.93);
  backdrop-filter: saturate(160%) blur(8px);
  border-bottom: 1px solid var(--line);
}

.masthead__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem; min-height: 4.5rem; padding-block: 0.75rem;
}

.brand { display: inline-flex; align-items: center; }
.brand img { height: 2.1rem; width: auto; }

.nav { display: flex; align-items: center; gap: clamp(1rem, 2.6vw, 2.25rem); }

.nav a {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  text-decoration: none;
  padding-block: 0.35rem;
  white-space: nowrap;
  background-image: linear-gradient(var(--mark), var(--mark));
  background-repeat: no-repeat;
  background-size: 0% 0.4em;
  background-position: 0 88%;
  transition: background-size 0.22s ease;
}
.nav a:hover, .nav a.is-current { background-size: 100% 0.4em; }

@media (max-width: 40rem) {
  .masthead__inner {
    flex-direction: column; align-items: flex-start;
    gap: 0.85rem; padding-block: 0.9rem;
  }
  .brand img { height: 1.85rem; }
  .nav { gap: 1.15rem; }
  .nav a { font-size: 0.72rem; letter-spacing: 0.08em; }
}

/* ---------- typography ---------- */

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 700;
  font-stretch: 112%;
  letter-spacing: -0.015em;
  line-height: 1.05;
  margin: 0;
  text-wrap: balance;
}

.h-hero, .h-page, .h-section {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.05;
  margin: 0;
  text-wrap: balance;
}

.h-hero {
  font-size: clamp(2.05rem, 1.1rem + 4.3vw, 4.35rem);
  font-weight: 800; font-stretch: 112%;
  line-height: 1.02; letter-spacing: -0.025em;
  max-width: 17ch;
}

.h-page {
  font-size: clamp(1.9rem, 1.15rem + 3vw, 3.4rem);
  font-weight: 800; font-stretch: 112%; letter-spacing: -0.022em;
}

.h-section {
  font-size: clamp(1.35rem, 1.1rem + 1vw, 1.85rem);
  font-stretch: 108%;
}

.lede {
  font-size: clamp(1.12rem, 1.02rem + 0.5vw, 1.38rem);
  line-height: 1.55;
  max-width: 46ch;
}

.prose p { margin: 0 0 1.1em; max-width: 62ch; }
.prose p:last-child { margin-bottom: 0; }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--mono); font-size: 0.8rem;
  letter-spacing: 0.1em; text-transform: uppercase; text-decoration: none;
  padding: 0.9rem 1.5rem;
  border: 2px solid var(--ink);
  background: var(--ink); color: var(--paper);
  transition: background-color 0.2s ease, color 0.2s ease;
}
.btn:hover { background: var(--paper); color: var(--ink); }
.btn__arrow { transition: transform 0.2s ease; }
.btn:hover .btn__arrow { transform: translateX(3px); }

.btn--lg {
  font-size: 0.92rem;
  letter-spacing: 0.12em;
  padding: 1.15rem 2.1rem;
}

.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--paper); }

/* ---------- hero ---------- */

.hero { padding-block: clamp(3.5rem, 9vw, 7rem) clamp(2.5rem, 6vw, 4rem); }
.hero__rule { height: 1px; background: var(--line); margin-top: clamp(2.5rem, 6vw, 4rem); }

.hero__center { text-align: center; }
.hero__center .h-hero,
.hero__center .h-page { max-width: none; }
.hero__center .lede {
  max-width: 64ch;
  margin: clamp(1.6rem, 3vw, 2.2rem) auto 0;
}

/* manual line breaks used to shape a hero lede's taper; browser wrap takes over below this width */
@media (max-width: 46rem) {
  .lede-break { display: none; }
}
.hero__center .btn { margin-top: clamp(1.9rem, 3vw, 2.4rem); }

/* ---------- stacked section head ---------- */

.band__head { margin-bottom: clamp(1.9rem, 3.5vw, 2.75rem); }
.band__head .h-section { margin-top: 1.35rem; max-width: 36ch; }
.band__head .note {
  margin: 1.3rem 0 0;
  color: var(--slate);
  max-width: none;
  font-size: clamp(1.12rem, 1.02rem + 0.5vw, 1.38rem);
  line-height: 1.55;
}

/* statement prose: one wide left-aligned column, set larger so long lines stay trackable */
.prose--wide p {
  max-width: none;
  font-size: clamp(1.12rem, 1.02rem + 0.5vw, 1.38rem);
  line-height: 1.55;
  margin-bottom: 1em;
}
.prose--wide p:last-child { margin-bottom: 0; }

/* ---------- cards ---------- */

.cards {
  display: grid;
  gap: clamp(1rem, 2vw, 1.4rem);
  margin-top: 2.5rem;
}
.cards--three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cards--two   { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card--full { grid-column: 1 / -1; }

@media (max-width: 60rem) {
  .cards--three { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 40rem) {
  .cards--three, .cards--two { grid-template-columns: 1fr; }
}

/* compact card — home page */
.card {
  background: var(--paper);
  border: 2px solid var(--ink);
  padding: 1.9rem 1.7rem 2rem;
  display: flex; flex-direction: column;
}
.card__title { font-size: 1.3rem; font-stretch: 108%; margin-bottom: 0.7rem; }
.card__body { margin: 0; color: var(--slate); font-size: 1.02rem; line-height: 1.6; }

/* detailed card with an ink header bar — services page */
.card--panel { padding: 0; overflow: hidden; }
.card--panel .card__bar {
  background: var(--ink); color: var(--paper);
  padding: 1.25rem 1.7rem;
}
.card--panel .card__title { margin: 0; color: var(--paper); font-size: 1.3rem; }
.card--panel .card__text { padding: 1.6rem 1.7rem 1.85rem; }
.card--panel .card__body + .card__body { margin-top: 0.85rem; }

/* ---------- implementation kit list ---------- */

.kit {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0 clamp(1.5rem, 3vw, 3rem);
  margin: clamp(2.25rem, 4vw, 3rem) 0 0;
  padding: 0; list-style: none;
}
.kit-followup { margin-top: clamp(2.5rem, 4.5vw, 3.25rem); }
.kit-followup .btn {
  margin: clamp(1.75rem, 3vw, 2.25rem) auto 0;
  display: flex;
  width: 100%;
  max-width: 26rem;
  justify-content: center;
}

.kit li {
  border-top: 2px solid var(--ink);
  padding-block: 0.95rem;
  font-size: 1.02rem;
  text-align: center;
}

@media (max-width: 46rem) { .kit { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 30rem) { .kit { grid-template-columns: 1fr; } }

/* ---------- standards grid (signature) ---------- */

.standards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(0.85rem, 1.6vw, 1.25rem);
  margin-top: 0;
}

@media (max-width: 64rem) { .standards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 34rem) { .standards { grid-template-columns: 1fr; } }

.standard {
  border: 3px solid var(--ink);
  background: var(--paper);
  padding: 1.6rem 1.5rem 1.5rem;
  display: flex; flex-direction: column; gap: 0.6rem;
  min-height: 10.5rem;
  text-decoration: none;
  transition: background-color 0.18s ease, color 0.18s ease;
}
a.standard:hover, a.standard:focus-visible { background: var(--ink); color: var(--paper); }
a.standard:hover .standard__name,
a.standard:hover .standard__region,
a.standard:focus-visible .standard__name,
a.standard:focus-visible .standard__region { color: rgba(255,255,255,0.78); }

.standard__abbr {
  font-family: var(--display); font-weight: 700; font-stretch: 112%;
  font-size: 1.5rem; letter-spacing: -0.012em; line-height: 1; margin: 0;
}
.standard__name {
  font-size: 1.02rem; line-height: 1.5; color: var(--slate); margin: 0;
}
.standard__region {
  font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--slate);
  margin: auto 0 0; padding-top: 0.8rem;
}

/* ---------- closing call to action ---------- */

.closer { background: var(--ink); color: var(--paper); }
.closer .section-head { color: var(--paper); }
.closer .lede { color: rgba(255,255,255,0.8); margin: 0; }
.closer .btn {
  border-color: var(--paper); background: var(--paper); color: var(--ink);
  margin-top: 2rem;
}
.closer .btn:hover { background: transparent; color: var(--paper); }

.closer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr));
  gap: clamp(1.75rem, 4vw, 4rem);
  align-items: center;
}
.closer__grid .h-page { margin-top: 1.4rem; max-width: 14ch; }

/* ---------- footer ---------- */

.footer { border-top: 1px solid var(--line); padding-block: 3rem 2.5rem; }
.footer__inner {
  display: flex; flex-wrap: wrap; gap: 1.75rem 3rem;
  align-items: center; justify-content: space-between;
}
.footer img { height: 2.4rem; width: auto; opacity: 0.9; }
.footer__links {
  display: flex; flex-wrap: wrap; gap: 0.5rem 1.75rem;
  font-family: var(--mono); font-size: 0.78rem;
}
.footer__links a { text-decoration: none; }
.footer__links a:hover { text-decoration: underline; text-underline-offset: 4px; }
.footer__legal {
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.08em;
  color: var(--slate); margin-top: 2.5rem;
}

/* ---------- scroll reveal ---------- */

.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}