/* Kristin Anderson — portfolio, direction 2a */

:root {
  --bg: oklch(98% 0.01 90);
  --ink: oklch(25% 0.03 260);
  --headline: oklch(28% 0.03 20);
  --lavender: oklch(75% 0.12 300);
  --highlight: oklch(83% 0.09 300);
  --script-ink: oklch(30% 0.05 300);
  --script-accent: oklch(40% 0.1 300);
  --berry: oklch(68% 0.19 20);
  --muted-40: rgba(0, 0, 0, .4);
  --muted-45: rgba(0, 0, 0, .45);
  --muted-50: rgba(0, 0, 0, .5);
  --muted-55: rgba(0, 0, 0, .55);
  --muted-60: rgba(0, 0, 0, .6);
  --muted-65: rgba(0, 0, 0, .65);
  --hairline: rgba(0, 0, 0, .08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  font-family: Inter, sans-serif;
  color: var(--ink);
}

a { text-decoration: none; }

/* ---------- Header ---------- */

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 48px 100px 0;
}

.name-mark {
  font: 400 22px 'Permanent Marker', cursive;
  color: var(--ink);
}

.site-nav {
  display: flex;
  gap: 26px;
  align-items: center;
}

.site-nav a {
  font: 600 13px Inter, sans-serif;
  color: var(--muted-50);
}

.site-nav a.active {
  color: var(--ink);
  border-bottom: 2px solid var(--lavender);
  padding-bottom: 2px;
}

.say-hi {
  padding: 9px 18px;
  border: 1.5px solid var(--ink);
  border-radius: 99px;
  font: 600 12.5px Inter, sans-serif;
  color: var(--ink) !important;
}

/* ---------- Home: hero ---------- */

.hero {
  text-align: center;
  padding: 140px 130px 72px;
}

.hero h1 {
  margin: 0 auto;
  font: 700 40px/1.5 Inter, sans-serif;
  color: var(--ink);
  letter-spacing: -.01em;
  max-width: 760px;
}

.accent {
  position: relative;
  white-space: nowrap;
  z-index: 1;
  font: 400 46px Kalam, cursive;
  color: var(--script-ink);
}

.accent::after {
  content: '';
  position: absolute;
  left: -8px;
  right: -8px;
  bottom: 6px;
  height: 52%;
  background: var(--highlight);
  z-index: -1;
  transform: rotate(-1.4deg);
  border-radius: 2px 10px 3px 12px;
}

.hero-sub {
  margin: 26px auto 0;
  font: 400 16px/1.7 Inter, sans-serif;
  color: var(--muted-55);
  max-width: 560px;
}

/* ---------- Home: case studies ---------- */

.cases {
  padding: 0 130px 78px;
  display: flex;
  flex-direction: column;
  gap: 26px;
  scroll-margin-top: 24px;
}

.cases-label {
  font: 600 12px Inter, sans-serif;
  letter-spacing: .06em;
  color: var(--muted-40);
  text-transform: uppercase;
  text-align: center;
}

.case-card {
  display: flex;
  gap: 28px;
  align-items: stretch;
  background: #fff;
  border-radius: 32px;
  padding: 32px;
  min-height: 230px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, .04);
}

.case-media {
  width: 250px;
  flex: none;
  border-radius: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  font: 500 11px Inter, sans-serif;
  text-align: center;
}

.case-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
}

.case-tag {
  font: 600 11px Inter, sans-serif;
  letter-spacing: .06em;
}

.case-card h2 {
  margin: 0;
  font: 700 22px Inter, sans-serif;
  color: var(--ink);
}

.case-desc {
  font: 400 14px/1.5 Inter, sans-serif;
  color: var(--muted-60);
}

.case-stats {
  display: flex;
  gap: 32px;
  margin-top: 8px;
}

.stat-num {
  font: 700 26px Inter, sans-serif;
  color: var(--ink);
}

.stat-label {
  font: 400 12px Inter, sans-serif;
  color: var(--muted-50);
}

/* per-case hues */
.case-cert .case-media {
  aspect-ratio: 1017 / 759;
  align-self: flex-start;
  object-fit: cover;
}
.case-cert .case-tag { color: oklch(50% 0.1 300); }

.case-performance .case-media {
  background: repeating-linear-gradient(135deg, oklch(90% 0.06 200), oklch(90% 0.06 200) 10px, oklch(94% 0.02 200) 10px, oklch(94% 0.02 200) 20px);
  color: oklch(35% 0.06 200);
}
.case-performance .case-tag { color: oklch(50% 0.1 200); }

.case-ailab .case-media {
  aspect-ratio: 1742 / 1214;
  align-self: flex-start;
  object-fit: cover;
}
.case-ailab .case-tag { color: oklch(50% 0.1 40); }

.case-card { position: relative; }
.case-card h2 a { color: inherit; text-decoration: none; }
.case-link::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 32px;
}

.inflight-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font: 600 11px Inter, sans-serif;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: oklch(40% 0.12 200);
}
.inflight-tag::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: oklch(60% 0.15 200);
  flex-shrink: 0;
}

/* ---------- About ---------- */

.about-col {
  max-width: 720px;
  margin: 0 auto;
  padding: 72px 24px 0;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.about-photo {
  width: 400px;
  max-width: 100%;
  aspect-ratio: 3 / 2;
  border-radius: 28px;
  object-fit: cover;
}

.about-col h1 {
  margin: 32px 0 0;
  font: 700 36px/1.4 Inter, sans-serif;
  color: var(--headline);
}

.about-col h1 .accent {
  font-size: 42px;
}

.about-col p {
  margin: 20px 0 0;
  font: 400 16px/1.7 Inter, sans-serif;
  color: var(--muted-65);
  text-align: left;
  align-self: flex-start;
}

.about-col p + p { margin-top: 14px; }

.outside {
  margin-top: 64px;
  padding-top: 44px;
  border-top: 1px solid var(--hairline);
  text-align: left;
  width: 100%;
}

.outside .outside-copy {
  margin-top: 16px;
  font: 400 15.5px/1.7 Inter, sans-serif;
  color: var(--muted-60);
  max-width: 640px;
  text-align: left;
  align-self: auto;
}

.outside .outside-copy + .outside-copy {
  margin-top: 14px;
}

.collage {
  margin-top: 32px;
  position: relative;
  width: 100%;
  max-width: 660px;
  height: 560px;
  padding-bottom: 16px;
}

.collage .tile {
  position: absolute;
  border-radius: 20px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, .14);
  object-fit: cover;
}

.tile-1 {
  left: 0; top: 0;
  width: 230px; height: 307px;
  aspect-ratio: 230 / 307;
  z-index: 1;
}

.tile-2 {
  right: 0; top: 50px;
  width: 400px; height: 300px;
  aspect-ratio: 4 / 3;
  z-index: 0;
}

.tile-3 {
  left: 190px; top: 270px;
  width: 230px; height: 244px;
  aspect-ratio: 230 / 244;
  z-index: 3;
}
/* ---------- Case study pages ---------- */

.cs-wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 64px 60px 96px;
}

.cs-back {
  display: inline-block;
  font: 500 13px Inter, sans-serif;
  color: var(--muted-50);
  margin-bottom: 32px;
  letter-spacing: -.01em;
}
.cs-back:hover { color: var(--ink); }

.cs-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.cs-tag {
  font: 600 11px Inter, sans-serif;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border: 1px solid var(--hairline);
  border-radius: 4px;
  color: var(--muted-50);
}

.cs-tag-piloted {
  color: oklch(30% 0.12 160);
  border-color: oklch(70% 0.12 160);
  background: oklch(95% 0.04 160);
}

.cs-tag-inflight {
  color: oklch(35% 0.12 220);
  border-color: oklch(72% 0.1 220);
  background: oklch(95% 0.03 220);
}

.cs-tag-living {
  color: oklch(35% 0.12 40);
  border-color: oklch(75% 0.1 40);
  background: oklch(96% 0.03 40);
}

.cs-wrap h1 {
  font: 700 34px/1.2 Inter, sans-serif;
  color: var(--headline);
  margin: 0 0 32px;
  letter-spacing: -.02em;
}

.cs-hero {
  padding-bottom: 56px;
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 64px;
}

.cs-meta {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
  padding-top: 28px;
  border-top: 1px solid var(--hairline);
}

.cs-meta-item { display: flex; flex-direction: column; gap: 4px; }
.cs-meta-value { font: 600 14px Inter, sans-serif; color: var(--ink); }
.cs-meta-label { font: 400 12px Inter, sans-serif; color: var(--muted-50); }

.cs-section {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 0 40px;
  padding: 48px 0;
  border-bottom: 1px solid var(--hairline);
}
.cs-section:last-of-type { border-bottom: none; }

.cs-rail {
  font: 600 11px/1.5 Inter, sans-serif;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--muted-50);
  padding-top: 4px;
}

.cs-content p {
  margin: 0 0 16px;
  font: 400 16px/1.75 Inter, sans-serif;
  color: var(--muted-65);
}
.cs-content p:last-child { margin-bottom: 0; }
.cs-content p.italic { font-style: italic; }

.cs-stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.cs-stat-num { font: 700 32px Inter, sans-serif; color: var(--ink); }
.cs-stat-label { font: 400 12px Inter, sans-serif; color: var(--muted-50); margin-top: 2px; }

.cs-artifact {
  display: flex;
  gap: 16px;
  background: #fff;
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 16px;
  margin: 20px 0;
  max-width: 480px;
}

.cs-artifact-thumb {
  width: 120px;
  min-width: 120px;
  height: 72px;
  border-radius: 8px;
  overflow: hidden;
  background: oklch(94% 0.02 300);
  flex-shrink: 0;
}
.cs-artifact-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  cursor: zoom-in;
  transition: opacity .18s;
}
.cs-artifact-thumb img:hover { opacity: .85; }
.cs-artifact-title { font: 500 13px Inter, sans-serif; color: var(--ink); margin-bottom: 6px; }
.cs-artifact-caption { font: 400 12px/1.6 Inter, sans-serif; color: var(--muted-50); }

.cs-lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.82);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 32px;
  cursor: zoom-out;
}
.cs-lightbox.open { display: flex; }
.cs-lightbox img {
  max-width: 90vw;
  max-height: 88vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 12px 48px rgba(0,0,0,.5);
}

/* Gate */
.cs-gate {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}
.cs-gate-box { max-width: 380px; width: 100%; text-align: center; }
.cs-gate-label {
  font: 600 11px Inter, sans-serif;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted-50);
  margin: 0 0 12px;
}
.cs-gate-title { font: 700 22px Inter, sans-serif; color: var(--ink); margin: 0 0 10px; }
.cs-gate-sub { font: 400 14px/1.6 Inter, sans-serif; color: var(--muted-55); margin: 0 0 24px; }
.cs-gate-row { display: flex; gap: 8px; max-width: 300px; margin: 0 auto; }
.cs-gate-input {
  flex: 1;
  padding: 10px 14px;
  font: 400 14px Inter, sans-serif;
  color: var(--ink);
  background: #fff;
  border: 1.5px solid var(--hairline);
  border-radius: 8px;
  outline: none;
}
.cs-gate-input:focus { border-color: var(--lavender); }
.cs-gate-input.error { border-color: var(--berry); }
.cs-gate-btn {
  padding: 10px 18px;
  font: 600 13px Inter, sans-serif;
  color: #fff;
  background: var(--ink);
  border: none;
  border-radius: 8px;
  cursor: pointer;
}
.cs-gate-btn:hover { opacity: .85; }
.cs-gate-error {
  font: 400 13px Inter, sans-serif;
  color: var(--berry);
  margin: 12px 0 0;
  opacity: 0;
  transition: opacity .2s;
}
.cs-gate-error.visible { opacity: 1; }

/* AI Lab */
.cs-log-header {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 12px;
  margin-bottom: 4px;
  font: 600 11px Inter, sans-serif;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--muted-40);
}

.cs-log-entry {
  padding: 36px 0;
  border-bottom: 1px solid var(--hairline);
}
.cs-log-entry:last-child { border-bottom: none; }
.cs-entry-title { font: 600 18px Inter, sans-serif; color: var(--ink); margin-bottom: 10px; }
.cs-log-entry .cs-badge { display: inline-block; margin-bottom: 16px; }
.cs-entry-desc { font: 400 15px/1.75 Inter, sans-serif; color: var(--muted-65); margin-bottom: 10px; }
.cs-entry-tools { font: 500 11px Inter, sans-serif; letter-spacing: .06em; text-transform: uppercase; color: var(--muted-40); }

.cs-badge {
  font: 600 11px Inter, sans-serif;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border: 1px solid;
  border-radius: 4px;
  white-space: nowrap;
  margin-top: 2px;
}
.cs-badge-shipped { color: oklch(30% 0.12 160); border-color: oklch(70% 0.12 160); background: oklch(95% 0.04 160); }
.cs-badge-exploring { color: oklch(35% 0.12 220); border-color: oklch(72% 0.1 220); background: oklch(95% 0.03 220); }
.cs-badge-ongoing { color: oklch(35% 0.12 300); border-color: oklch(72% 0.1 300); background: oklch(95% 0.03 300); }
.cs-badge-upnext { color: var(--muted-50); border-color: var(--hairline); background: transparent; }

.cs-entry-thumb {
  display: block;
  margin-top: 16px;
  margin-bottom: 6px;
  width: 180px;
  border-radius: 8px;
  border: 1px solid var(--hairline);
  cursor: zoom-in;
  transition: opacity .18s;
}
.cs-entry-thumb:hover { opacity: .85; }
.cs-thumb-caption { font: 400 11px Inter, sans-serif; letter-spacing: .04em; color: var(--muted-40); margin-bottom: 12px; }

.cs-live-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font: 600 11px Inter, sans-serif;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted-50);
  white-space: nowrap;
  margin-top: 6px;
}
.cs-live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: oklch(55% 0.15 160);
  flex-shrink: 0;
}

.cs-reflection {
  background: #fff;
  border-radius: 16px;
  padding: 36px 44px;
  margin-top: 64px;
}
.cs-reflection-label {
  font: 600 11px Inter, sans-serif;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--muted-40);
  margin-bottom: 20px;
}
.cs-reflection blockquote {
  font: 400 17px/1.75 Inter, sans-serif;
  font-style: italic;
  color: var(--ink);
  margin: 0;
}

.cs-ailab-hero {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: start;
  margin-bottom: 56px;
  padding-bottom: 56px;
  border-bottom: 1px solid var(--hairline);
}

.cs-ailab-hero h1 .accent {
  font-size: 40px;
}

/* Responsive case study */
@media (max-width: 960px) {
  .cs-wrap { padding: 40px 28px 72px; }
  .cs-wrap h1 { font-size: 26px; }
  .cs-section { grid-template-columns: 1fr; gap: 12px 0; padding: 36px 0; }
  .cs-rail { padding-top: 0; margin-bottom: 4px; }
  .cs-meta { gap: 20px; }
  .cs-stats { gap: 32px; }
  .cs-artifact { flex-direction: column; max-width: 100%; }
  .cs-artifact-thumb { width: 100%; height: 80px; }
  .cs-reflection { padding: 28px 24px; }
  .cs-log-entry { padding: 28px 0; }
  .cs-ailab-hero { grid-template-columns: 1fr; gap: 12px; }
}

/* ---------- Footer ---------- */

.site-footer {
  margin-top: 72px;
  padding: 32px 100px;
  border-top: 1px solid var(--hairline);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.home .site-footer { margin-top: 0; }

.copyright {
  font: 400 13.5px Inter, sans-serif;
  color: var(--muted-45);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font: 600 13px Inter, sans-serif;
  color: var(--ink);
}

/* ---------- Responsive ---------- */

@media (max-width: 960px) {
  .site-header { padding: 32px 28px 0; flex-wrap: wrap; gap: 16px; }
  .hero { padding: 72px 28px 48px; }
  .hero h1 { font-size: 32px; }
  .hero h1 .accent { font-size: 38px; }
  .cases { padding: 0 28px 56px; }
  .case-card { flex-direction: column; }
  .case-media { width: 100%; min-height: 180px; }
  .case-ailab .case-media { min-height: 0; }
  .case-cert .case-media { min-height: 0; }
  .about-col { padding: 48px 28px 0; }
  .collage { height: auto; display: flex; flex-direction: column; gap: 24px; }
  .collage .tile { position: static; width: 100%; height: auto; }
  .site-footer { padding: 28px 28px; }
}