/* ==========================================================================
   Valcerne — styles
   ========================================================================== */

/* Fonts (self-hosted, latin subset; SIL Open Font License) ---------------- */
@font-face {
  font-family: "Cormorant Garamond";
  src: url("fonts/cormorant-garamond-latin.woff2") format("woff2");
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Cormorant Garamond";
  src: url("fonts/cormorant-garamond-italic-latin.woff2") format("woff2");
  font-weight: 300 700;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Hanken Grotesk";
  src: url("fonts/hanken-grotesk-latin.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

/* Tokens ------------------------------------------------------------------ */
:root {
  --burgundy: #4C0109;
  --burgundy-hover: #6B0A15;
  --burgundy-deep: #2E0207;
  --ink: #1D1A19;
  --text: #36302E;
  --muted: #655D59;
  --paper: #F7F4EE;
  --paper-alt: #EEE8DF;
  --rule: #D8CFC4;
  --on-dark: #F7F4EE;
  --on-dark-muted: #D9CCC6;

  --font-display: "Cormorant Garamond", "Cormorant", Garamond, "EB Garamond", "Times New Roman", serif;
  --font-text: "Hanken Grotesk", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --gutter: clamp(1.25rem, 5vw, 3rem);
  --col-gap: clamp(1.5rem, 3vw, 2.5rem);
  --section-pad: clamp(5rem, 4rem + 6vw, 9rem);
  --header-h: 4.5rem;
  --measure: 38rem;
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 1rem);
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-text);
  font-size: 1.0625rem;
  line-height: 1.65;
  font-kerning: normal;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, p, ul, ol, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img { display: block; max-width: 100%; height: auto; }

a { color: inherit; }

::selection { background: var(--burgundy); color: var(--on-dark); }

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

.container {
  width: 100%;
  max-width: calc(75rem + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

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

.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -100px;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--burgundy);
  color: var(--on-dark);
  font-weight: 500;
  text-decoration: none;
}
.skip-link:focus { top: 0.75rem; }

/* Type -------------------------------------------------------------------- */
.eyebrow {
  font-family: var(--font-text);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  line-height: 1.5;
  text-transform: uppercase;
  color: var(--muted);
}

.lead {
  font-size: clamp(1.1875rem, 1.05rem + 0.45vw, 1.375rem);
  line-height: 1.55;
  color: var(--ink);
  max-width: var(--measure);
}

.section__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.125rem, 1.5rem + 2.4vw, 3.375rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--ink);
  max-width: 18ch;
  text-wrap: balance;
}

.section__intro {
  margin-top: 1.5rem;
  max-width: var(--measure);
}

h3 {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--ink);
}

/* Buttons ----------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  min-height: 3.25rem;
  padding: 0.875rem 1.625rem;
  border: 1px solid transparent;
  border-radius: 2px;
  font-family: var(--font-text);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1.3;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}
.btn--primary::after,
.btn--light::after {
  content: "→";
  font-weight: 400;
}

@media (prefers-reduced-motion: no-preference) {
  .btn { transition: background-color 150ms ease, color 150ms ease, border-color 150ms ease; }
}

.btn--primary { background: var(--burgundy); color: var(--on-dark); }
.btn--primary:hover { background: var(--burgundy-hover); }

.btn--outline { border-color: var(--burgundy); color: var(--burgundy); background: transparent; }
.btn--outline:hover { background: var(--burgundy); color: var(--on-dark); }

.btn--light { background: var(--paper); color: var(--burgundy); }
.btn--light:hover { background: #FFFFFF; }
.btn--light:focus-visible { outline-color: var(--on-dark); }

.btn--small {
  min-height: 2.5rem;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* Header ------------------------------------------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
}
.site-header__inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  min-height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-right: auto;
  text-decoration: none;
  color: var(--burgundy);
}
.brand__mark { width: auto; height: 2.25rem; }
.brand__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  line-height: 1;
  padding-top: 0.1em;
}

.site-nav ul { display: flex; gap: 1.75rem; }
.site-nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  padding-block: 0.5rem;
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 0% 1px;
  background-repeat: no-repeat;
  background-position: 0 85%;
}
.site-nav a:hover { color: var(--ink); background-size: 100% 1px; }

@media (max-width: 960px) {
  .site-nav { display: none; }
}
@media (max-width: 380px) {
  .brand__name { font-size: 1.0625rem; letter-spacing: 0.12em; }
  .brand__mark { height: 1.875rem; }
  .site-header__inner { gap: 1rem; }
}

/* Hero -------------------------------------------------------------------- */
.hero {
  padding-block: clamp(4.5rem, 3rem + 7vw, 9.5rem) clamp(4.5rem, 3rem + 6vw, 8rem);
}
.hero__grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: var(--col-gap);
}
.hero__eyebrow { grid-column: 1 / -1; max-width: 34rem; }
.hero__title {
  grid-column: 1 / 11;
  margin-top: 1.75rem;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.875rem, 1.4rem + 5.6vw, 6rem);
  line-height: 1.02;
  letter-spacing: -0.015em;
  color: var(--ink);
}
.hero__title span,
.hero__title em { display: block; }
.hero__title em { font-style: italic; color: var(--burgundy); }

.hero__body {
  grid-column: 1 / 8;
  margin-top: clamp(2rem, 1.5rem + 2vw, 3rem);
}
.cta-group { margin-top: 2.25rem; }
.cta-note {
  margin-top: 0.875rem;
  font-size: 0.875rem;
  color: var(--muted);
}

.hero__aside {
  grid-column: 9 / 13;
  align-self: end;
  padding-left: var(--col-gap);
  border-left: 1px solid var(--rule);
}

/* Lists with hairlines (hero aside, approach aside) */
.ruled-list { margin-top: 1rem; }
.ruled-list li {
  padding-block: 0.875rem;
  border-top: 1px solid var(--rule);
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--ink);
}
.ruled-list li:last-child { border-bottom: 1px solid var(--rule); }

@media (max-width: 900px) {
  .hero__grid { display: block; }
  .hero__title { margin-top: 1.25rem; }
  .hero__aside {
    margin-top: 3.5rem;
    padding-left: 0;
    border-left: 0;
    max-width: var(--measure);
  }
}

/* Sections ---------------------------------------------------------------- */
.section {
  padding-block: var(--section-pad);
  border-top: 1px solid var(--rule);
}
.section--alt { background: var(--paper-alt); border-top-color: var(--paper-alt); }

.section__grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: var(--col-gap);
}
.section__meta { grid-column: 1 / 4; }
.section__body { grid-column: 4 / 13; }

.section__num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 500;
  line-height: 1;
  color: var(--burgundy);
  margin-bottom: 0.75rem;
  font-variant-numeric: lining-nums;
}

@media (min-width: 901px) {
  .section__meta { position: sticky; top: calc(var(--header-h) + 2.5rem); align-self: start; }
}

@media (max-width: 900px) {
  .section__grid { display: block; }
  .section__meta {
    display: flex;
    align-items: baseline;
    gap: 0.875rem;
    margin-bottom: 1.5rem;
  }
  .section__num { margin-bottom: 0; font-size: 1.5rem; }
}

/* 02 Problems ------------------------------------------------------------- */
.problem-list {
  counter-reset: problem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 var(--col-gap);
  margin-top: clamp(3rem, 2rem + 3vw, 4.5rem);
}
.problem-list li {
  counter-increment: problem;
  padding-block: 1.75rem 2.25rem;
  border-top: 1px solid var(--rule);
}
.problem-list li::before {
  content: counter(problem, decimal-leading-zero);
  display: block;
  margin-bottom: 0.75rem;
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1;
  color: var(--burgundy);
  font-variant-numeric: lining-nums;
}
.problem-list p { margin-top: 0.5rem; max-width: 30rem; }

@media (max-width: 700px) {
  .problem-list { grid-template-columns: 1fr; }
  .problem-list li { padding-block: 1.5rem 1.75rem; }
}

.pull-note {
  margin-top: clamp(2rem, 1.5rem + 2vw, 3rem);
  padding-left: clamp(1.25rem, 2.5vw, 2rem);
  border-left: 2px solid var(--burgundy);
  max-width: 44rem;
  font-family: var(--font-display);
  font-size: clamp(1.375rem, 1.2rem + 0.6vw, 1.6875rem);
  font-weight: 500;
  line-height: 1.4;
  color: var(--ink);
}

/* 03 Approach ------------------------------------------------------------- */
.approach {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 16rem);
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: start;
}
.approach__aside { padding-top: 0.5rem; }

.steps {
  counter-reset: step;
  margin-top: clamp(3rem, 2rem + 3vw, 4.5rem);
}
.steps li {
  counter-increment: step;
  position: relative;
  display: grid;
  grid-template-columns: 3.5rem minmax(0, 1fr);
  column-gap: 1rem;
  padding-bottom: 2.5rem;
}
.steps li:last-child { padding-bottom: 0; }
.steps li::before {
  content: counter(step);
  grid-row: 1 / span 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--burgundy);
  border-radius: 50%;
  background: var(--paper);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1;
  color: var(--burgundy);
  font-variant-numeric: lining-nums;
  position: relative;
  z-index: 1;
}
.steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  left: calc(1.375rem - 0.5px);
  top: 2.75rem;
  bottom: 0;
  width: 1px;
  background: var(--rule);
}
.steps h3 { padding-top: 0.55rem; }
.steps p { margin-top: 0.5rem; max-width: var(--measure); }

@media (max-width: 1100px) {
  .approach { grid-template-columns: 1fr; }
  .approach__aside { max-width: var(--measure); padding-top: 0; }
}
@media (max-width: 480px) {
  .steps li { grid-template-columns: 2.75rem minmax(0, 1fr); column-gap: 0.875rem; }
  .steps li::before { width: 2.25rem; height: 2.25rem; font-size: 1.0625rem; }
  .steps li:not(:last-child)::after { left: calc(1.125rem - 0.5px); top: 2.25rem; }
  .steps h3 { padding-top: 0.3rem; }
}

/* 04 Engagements ---------------------------------------------------------- */
.formats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: clamp(3rem, 2rem + 3vw, 4.5rem);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.format {
  display: flex;
  flex-direction: column;
  padding-block: 2.25rem 2.5rem;
}
.format:first-child { padding-right: clamp(1.5rem, 4vw, 3.5rem); }
.format:last-child {
  padding-left: clamp(1.5rem, 4vw, 3.5rem);
  border-left: 1px solid var(--rule);
}
.format__title {
  margin-top: 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.875rem, 1.5rem + 1vw, 2.375rem);
  font-weight: 500;
  line-height: 1.1;
}
.format__lede {
  margin-top: 0.5rem;
  margin-bottom: 1.25rem;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.3125rem;
  line-height: 1.35;
  color: var(--burgundy);
}
.format__fit {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  font-size: 0.9375rem;
  color: var(--ink);
}
.format > p:not(.format__fit):nth-last-child(2) { margin-bottom: 1.5rem; }
.format__fit span {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

@media (max-width: 760px) {
  .formats { grid-template-columns: 1fr; }
  .format:first-child { padding-right: 0; }
  .format:last-child { padding-left: 0; border-left: 0; border-top: 1px solid var(--rule); }
}

.section-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem 2rem;
  margin-top: clamp(2.5rem, 2rem + 2vw, 3.5rem);
}
.section-cta p {
  font-family: var(--font-display);
  font-size: clamp(1.375rem, 1.2rem + 0.6vw, 1.625rem);
  font-weight: 500;
  line-height: 1.3;
  color: var(--ink);
  max-width: 24rem;
}

/* 05 Data handling -------------------------------------------------------- */
.practices {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 var(--col-gap);
  margin-top: clamp(3rem, 2rem + 3vw, 4.5rem);
}
.practices > div {
  padding-block: 1.5rem 1.75rem;
  border-top: 1px solid var(--rule);
}
.practices dt { font-weight: 600; color: var(--ink); }
.practices dd { margin-top: 0.375rem; max-width: 30rem; }

.fine-print {
  margin-top: 1.5rem;
  font-size: 0.875rem;
  color: var(--muted);
}

@media (max-width: 700px) {
  .practices { grid-template-columns: 1fr; }
}

/* 06 About ---------------------------------------------------------------- */
.about__text { margin-top: 2rem; max-width: var(--measure); }
.about__text .lead {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.5rem, 1.25rem + 0.9vw, 1.875rem);
  line-height: 1.3;
  color: var(--burgundy);
}
.about__text p + p { margin-top: 1.25rem; }

/* Final CTA --------------------------------------------------------------- */
.final-cta {
  background: var(--burgundy-deep);
  color: var(--on-dark-muted);
  padding-block: clamp(5rem, 4rem + 6vw, 9rem);
  text-align: center;
}
.final-cta__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.final-cta__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.25rem, 1.5rem + 3vw, 4rem);
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--on-dark);
  max-width: 16ch;
  margin-inline: auto;
  text-wrap: balance;
}
.final-cta__inner > p:not(.final-cta__alt) {
  margin-top: 1.5rem;
  max-width: 34rem;
  margin-inline: auto;
  font-size: clamp(1.0625rem, 1rem + 0.3vw, 1.1875rem);
}
.final-cta .btn { margin-top: 2.5rem; }
.final-cta__alt {
  margin-top: 1.5rem;
  font-size: 0.9375rem;
}
.final-cta a:not(.btn) { color: var(--on-dark); text-underline-offset: 0.2em; }
.final-cta a:not(.btn):focus-visible { outline-color: var(--on-dark); }

/* Footer ------------------------------------------------------------------ */
.site-footer {
  padding-block: 3rem;
  font-size: 0.9375rem;
}
.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem 3rem;
}
.site-footer__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--burgundy);
}
.site-footer__desc { margin-top: 0.5rem; max-width: 26rem; color: var(--muted); }
.site-footer__contact { text-align: right; }
.site-footer__contact a {
  color: var(--ink);
  text-underline-offset: 0.2em;
  text-decoration-thickness: 1px;
  overflow-wrap: anywhere;
}
.site-footer__contact a:hover { color: var(--burgundy); }
.site-footer__contact p { margin-top: 0.5rem; color: var(--muted); font-size: 0.875rem; }

@media (max-width: 640px) {
  .site-footer__contact { text-align: left; }
}

/* Small phones ------------------------------------------------------------ */
@media (max-width: 480px) {
  .btn--primary,
  .btn--light { width: 100%; padding-inline: 1.125rem; }
  .final-cta__inner { align-items: stretch; }
}
@media (max-width: 360px) {
  .hero__title { font-size: 2.25rem; }
  .btn--primary,
  .btn--light { font-size: 0.875rem; letter-spacing: 0.01em; padding-inline: 0.875rem; gap: 0.45em; }
}