/* Kern: a portfolio template for studios and freelancers.
   Rebrand by editing the tokens in :root. Nothing else needs to change. */

:root {
  --bg: #f2f2f0;
  --surface: #e6e6e3;
  --ink: #121214;
  --muted: #5c5c63;
  --line: rgb(18 18 20 / 0.14);
  --accent: #2438f5;
  --accent-ink: #ffffff;

  --font-display: "Bricolage Grotesque", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Geist", "Helvetica Neue", Arial, sans-serif;

  /* Shape rule: media is 12px, anything you can press is a pill. */
  --radius-media: 12px;
  --radius-pill: 999px;

  --wrap: 1400px;
  --gutter: clamp(1rem, 4vw, 3rem);
  --gap: clamp(1rem, 2vw, 1.5rem);
  --section: clamp(5rem, 11vw, 10rem);
  --header: 68px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);

  /* Layers: header 10, mobile menu 20. */
  color-scheme: light dark;
}

/* Dark theme follows the visitor's system setting.
   To lock one theme, delete this block (light) or move its values into :root (dark). */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f0f11;
    --surface: #1b1b1f;
    --ink: #ececee;
    --muted: #a0a0a8;
    --line: rgb(236 236 238 / 0.16);
    --accent: #7f8cff;
    --accent-ink: #0f0f11;
  }
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: var(--header); }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; padding: 0; }
::selection { background: var(--accent); color: var(--accent-ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1;
  text-wrap: balance;
}
h2 { font-size: clamp(2rem, 4.5vw, 3.75rem); }

.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: var(--section); }
.section > h2 { margin-bottom: clamp(2rem, 5vw, 4rem); }
.muted { color: var(--muted); }

.skip {
  position: absolute; left: var(--gutter); top: -4rem; z-index: 20;
  background: var(--ink); color: var(--bg); padding: 0.6rem 1rem; border-radius: var(--radius-pill);
}
.skip:focus { top: 0.75rem; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 10; background: var(--bg); }
.site-header__inner { height: var(--header); display: flex; align-items: center; justify-content: space-between; }
.wordmark { font-family: var(--font-display); font-weight: 600; font-size: 1.3rem; letter-spacing: -0.03em; }
.nav { display: flex; align-items: center; gap: 2rem; }
.nav a:not(.btn), .link {
  background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat;
  transition: background-size 0.4s var(--ease);
}
.nav a:not(.btn):hover, .link:hover { background-size: 100% 1px; }
.menu-toggle {
  display: none; font: inherit; color: inherit; background: none; cursor: pointer;
  border: 0; box-shadow: inset 0 0 0 1px var(--line); border-radius: var(--radius-pill); padding: 0.5rem 1rem;
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.8rem 1.4rem; border-radius: var(--radius-pill);
  font-weight: 500; white-space: nowrap;
  transition: transform 0.2s var(--ease), background-color 0.25s, color 0.25s, box-shadow 0.25s;
}
.btn:active { transform: scale(0.98); }
.btn--primary { background: var(--ink); color: var(--bg); }
.btn--primary:hover { background: var(--accent); color: var(--accent-ink); }
.btn--ghost { box-shadow: inset 0 0 0 1px var(--line); }
.btn--ghost:hover { box-shadow: inset 0 0 0 1px var(--ink); }
.btn--small { padding: 0.55rem 1.1rem; }

/* Media */
.media { overflow: hidden; border-radius: var(--radius-media); background: var(--surface); }
.media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.9s var(--ease); }
.ratio-16x10 { aspect-ratio: 16 / 10; }
.ratio-16x9 { aspect-ratio: 16 / 9; }
.ratio-4x5 { aspect-ratio: 4 / 5; }

/* Hero */
.hero {
  display: grid; grid-template-columns: repeat(12, 1fr); gap: var(--gap); align-items: end;
  min-height: calc(100dvh - var(--header));
  padding-block: clamp(1.5rem, 4vw, 3rem);
}
.hero__copy { grid-column: 1 / span 7; }
.hero__copy h1 { font-size: clamp(2.4rem, 6.4vw, 6rem); }
.hero__copy p { max-width: 34ch; margin-top: 1.75rem; font-size: 1.2rem; color: var(--muted); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2.25rem; }
/* The image fills the full height of the hero; the copy sits at the bottom left. */
.hero__media { grid-column: 8 / span 5; align-self: stretch; position: relative; min-height: 22rem; }
.hero__media img { position: absolute; inset: 0; }

/* Work */
.work-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: clamp(2.5rem, 5vw, 4.5rem) var(--gap); }
.span-8 { grid-column: span 8; }
.span-7 { grid-column: span 7; }
.span-5 { grid-column: span 5; }
.span-4 { grid-column: span 4; }
.project { display: block; align-self: end; }
.project:hover .media img { transform: scale(1.04); }
.project__meta { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; margin-top: 1rem; }
.project__meta h3 { font-size: 1.35rem; letter-spacing: -0.02em; }
.project__meta p { color: var(--muted); font-size: 0.95rem; text-align: right; }

/* Services */
.service {
  display: grid; grid-template-columns: repeat(12, 1fr); gap: var(--gap); align-items: baseline;
  padding-block: clamp(1.5rem, 3vw, 2.5rem); border-top: 1px solid var(--line);
}
.service h3 { grid-column: 1 / span 6; font-size: clamp(1.75rem, 3.6vw, 3rem); transition: transform 0.5s var(--ease), color 0.3s; }
.service p { grid-column: 8 / span 5; color: var(--muted); }
.service:hover h3 { transform: translateX(0.75rem); color: var(--accent); }

/* About */
.about { display: grid; grid-template-columns: repeat(12, 1fr); gap: var(--gap); align-items: center; }
.about__media { grid-column: 1 / span 5; }
.about__copy { grid-column: 7 / span 6; }
.about__copy h2 { font-size: clamp(1.75rem, 3.4vw, 2.75rem); line-height: 1.08; margin-bottom: 2rem; }
.about__copy p { max-width: 52ch; color: var(--muted); }
.about__copy p + p { margin-top: 1rem; }

/* Quote */
.quote blockquote { max-width: 26ch; font-family: var(--font-display); font-size: clamp(1.9rem, 4vw, 3.25rem); letter-spacing: -0.03em; line-height: 1.08; }
.quote footer { margin-top: 2rem; font-family: var(--font-body); font-size: 1rem; letter-spacing: 0; line-height: 1.5; }
.quote footer strong { display: block; font-weight: 500; }
.quote footer span { color: var(--muted); }

/* Contact */
.contact { border-top: 1px solid var(--line); }
.contact p { max-width: 40ch; color: var(--muted); margin-top: 1.25rem; }
.contact__mail {
  display: inline-block; margin-top: clamp(2rem, 5vw, 4rem);
  font-family: var(--font-display); font-size: clamp(1.75rem, 5.2vw, 4.5rem); letter-spacing: -0.03em; line-height: 1.1;
  background: linear-gradient(var(--accent), var(--accent)) 0 100% / 100% 2px no-repeat;
  transition: color 0.3s;
  overflow-wrap: anywhere;
}
.contact__mail:hover { color: var(--accent); }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding-block: 2.5rem; font-size: 0.95rem; }
.site-footer__inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem var(--gap); }
.site-footer li + li { margin-top: 0.35rem; }
.site-footer small { grid-column: 1 / -1; color: var(--muted); font-size: 0.875rem; }

/* Case study page */
.case-hero { padding-block: clamp(3rem, 8vw, 6rem) clamp(2rem, 4vw, 3rem); }
.case-hero h1 { font-size: clamp(2.75rem, 7.5vw, 7rem); }
.case-hero p { max-width: 44ch; margin-top: 1.75rem; font-size: 1.2rem; color: var(--muted); }
.case-meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); margin-top: clamp(2rem, 5vw, 4rem); padding-top: 1.25rem; border-top: 1px solid var(--line); }
.case-meta dt { color: var(--muted); font-size: 0.9rem; }
.case-meta dd { margin-top: 0.2rem; }
.case-body { display: grid; grid-template-columns: repeat(12, 1fr); gap: 2.5rem var(--gap); }
.case-body h2 { grid-column: 1 / span 4; font-size: clamp(1.5rem, 2.6vw, 2.1rem); }
.case-body p { grid-column: 6 / span 6; max-width: 58ch; }
.case-gallery { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gap); }
.case-gallery .full { grid-column: 1 / -1; }
.next { display: block; border-top: 1px solid var(--line); }
.next span { color: var(--muted); }
.next strong { display: block; margin-top: 0.5rem; font-family: var(--font-display); font-weight: 500; font-size: clamp(2.25rem, 7vw, 6rem); letter-spacing: -0.03em; line-height: 1; transition: color 0.3s, transform 0.5s var(--ease); }
.next:hover strong { color: var(--accent); transform: translateX(0.75rem); }

/* Reveal on scroll. Content stays visible when JavaScript is off. */
.js [data-reveal] {
  opacity: 0; transform: translateY(22px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
  transition-delay: calc(var(--i, 0) * 80ms);
}
.js [data-reveal].is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js [data-reveal] { opacity: 1; transform: none; transition: none; }
  .media img, .service h3, .next strong, .btn { transition: none; }
  .project:hover .media img, .service:hover h3, .next:hover strong { transform: none; }
}

/* Small screens: every grid becomes one column. */
@media (max-width: 767px) {
  .menu-toggle { display: inline-flex; }
  .nav {
    display: none; position: absolute; z-index: 20; top: var(--header); left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 1.1rem;
    padding: 1rem var(--gutter) 2rem; background: var(--bg); border-bottom: 1px solid var(--line);
    font-size: 1.25rem;
  }
  .nav.is-open { display: flex; }

  .hero { display: block; min-height: 0; padding-top: 2.5rem; }
  .hero__media { margin-top: 2.5rem; min-height: 0; aspect-ratio: 4 / 3; }

  .work-grid, .about, .case-body { display: block; }
  .project + .project { margin-top: 2.5rem; }
  .project .media { aspect-ratio: 4 / 3; }
  .project__meta { display: block; }
  .project__meta p { text-align: left; margin-top: 0.2rem; }

  .service { display: block; }
  .service p { margin-top: 0.6rem; }
  .service:hover h3 { transform: none; }

  .about__copy { margin-top: 2.5rem; }
  .case-body h2 { margin-top: 2.5rem; }
  .case-body h2:first-child { margin-top: 0; }
  .case-body p { margin-top: 0.75rem; }
  .case-meta, .case-gallery { grid-template-columns: 1fr; }
  .site-footer__inner { grid-template-columns: 1fr 1fr; }
  .site-footer__inner > :first-child { grid-column: 1 / -1; }
}

/* Extra pages: work index, about, contact */
.span-6 { grid-column: span 6; }
.section--flush { padding-top: 0; }
.people { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem var(--gap); }
.people li { border-top: 1px solid var(--line); padding-top: 1.25rem; }
.people h3 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); }
.people p { max-width: 40ch; margin-top: 0.6rem; color: var(--muted); }
.case-hero .contact__mail { margin-top: clamp(2rem, 4vw, 3rem); }
@media (max-width: 767px) {
  .people { grid-template-columns: 1fr; }
}