:root {
  --color-bg: #F0EEE9;
  --color-ink: #171512;
  --color-accent: #D1FF52;
  --color-card: #FFFFFF;
  --color-border: #DEDAD1;
  --color-border-dashed: #C7C2B5;
  --color-chip-bg: #E7E3D9;
  --color-text-secondary: #6B655C;
  --color-text-muted: #8A8478;
  --color-text-faint: #A39C8C;
  --color-body-copy: #3A362E;
  --color-divider: #EFEDE7;

  --font-display: 'Archivo Black', Impact, 'Arial Black', sans-serif;
  --font-body: 'Inter', sans-serif;

  --radius-chip: 4px;
  --radius-button: 8px;
  --radius-card: 12px;
  --radius-pill: 999px;

  --max-width: 1440px;

  color-scheme: light;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-body-copy);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
img { max-width: 100%; display: block; }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 64px;
}

@media (max-width: 900px) {
  .wrap { padding: 0 24px; }
}

/* Focus states */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--color-ink);
  outline-offset: 2px;
}

/* Nav */
.nav {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}
.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
/* Logo plate — lime bg/black text on white or black backgrounds;
   flip to black bg/white text if it ever sits on a lime background. */
.logo-plate {
  display: inline-block;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  background: var(--color-accent);
  color: var(--color-ink);
  padding: 4px 10px;
  border-radius: 0;
}
.logo-plate--inverse {
  background: var(--color-ink);
  color: #fff;
}
.nav__logo {
  font-size: 17px;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav__links a:not(.btn) {
  font-weight: 500;
  font-size: 14px;
  color: var(--color-ink);
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
}
.nav__links a.is-active,
.nav__links a:hover {
  border-bottom-color: var(--color-accent);
}
.nav__cta { display: none; }
@media (min-width: 640px) {
  .nav__cta { display: inline-flex; }
}
.nav__menu-toggle { display: none; }

@media (max-width: 760px) {
  .nav__links a:not(.btn) { display: none; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 13px;
  letter-spacing: 0.02em;
  padding: 14px 26px;
  border-radius: var(--radius-button);
  border: none;
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-ink);
}
.btn-primary:hover { filter: brightness(0.95); }
.btn-primary--link { text-decoration: underline; text-underline-offset: 2px; }
.btn-secondary {
  background: transparent;
  color: var(--color-ink);
  border: 2px solid var(--color-ink);
}
.btn-secondary:hover { background: rgba(23,21,18,0.05); }
.btn-secondary--on-dark {
  color: #fff;
  border: 2px solid #fff;
}
.btn-secondary--on-dark:hover { background: rgba(255,255,255,0.08); }
.btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Tags / chips */
.tag {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 11px;
  background: var(--color-accent);
  color: var(--color-ink);
  border-radius: var(--radius-chip);
  padding: 3px 9px;
}
.chip {
  display: inline-flex;
  align-items: center;
  font-weight: 500;
  font-size: 12px;
  background: var(--color-chip-bg);
  color: var(--color-text-secondary);
  border-radius: var(--radius-pill);
  padding: 5px 12px;
}

/* Hero */
.hero {
  background: var(--color-ink);
  color: #fff;
  padding: 88px 0 96px;
}
.hero__headline {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 44px;
  line-height: 1.15;
  margin: 0 0 24px;
  max-width: 780px;
}
@media (max-width: 640px) {
  .hero__headline { font-size: 30px; }
}
.hero__plate {
  background: var(--color-accent);
  color: var(--color-ink);
  padding: 0 8px;
  border-radius: 0;
  display: inline-block;
}
.hero__outline {
  border: 2px solid #fff;
  padding: 0 8px;
  border-radius: 0;
  display: inline-block;
  font-style: italic;
}
.hero__subhead {
  font-size: 17px;
  line-height: 1.6;
  color: rgba(255,255,255,0.78);
  max-width: 560px;
  margin: 0 0 36px;
}
.hero__cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}
.hero__example-label {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 16px;
}
.case-marquee {
  overflow: hidden;
  width: 100%;
  mask-image: linear-gradient(to right, transparent, black 48px, black calc(100% - 48px), transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 48px, black calc(100% - 48px), transparent);
}
.case-marquee__track {
  display: flex;
  gap: 12px;
  width: max-content;
  animation: case-marquee-scroll 34s linear infinite;
}
.case-marquee:hover .case-marquee__track {
  animation-play-state: paused;
}
@keyframes case-marquee-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.marquee-plate {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
  white-space: nowrap;
  background: var(--color-card);
  border-radius: var(--radius-card);
  padding: 12px 18px;
}
.marquee-plate__title {
  font-weight: 600;
  font-size: 14px;
  color: var(--color-ink);
}
@media (prefers-reduced-motion: reduce) {
  .case-marquee__track {
    animation: none;
    overflow-x: auto;
  }
}

/* Sections */
.section {
  padding: 72px 0;
}
.section__eyebrow {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 12px;
  color: var(--color-ink);
  margin: 0 0 12px;
}
.section__heading {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 28px;
  margin: 0 0 12px;
}
.section__subtext {
  font-size: 15px;
  color: var(--color-text-secondary);
  max-width: 560px;
  margin: 0 0 40px;
}

/* How it works / steps */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
}
@media (max-width: 860px) {
  .steps { grid-template-columns: 1fr; }
}
.step-number {
  width: 52px;
  height: 52px;
  background: var(--color-accent);
  border-radius: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--color-ink);
  margin-bottom: 20px;
}
.step__title {
  font-weight: 700;
  font-size: 17px;
  margin: 0 0 8px;
}
.step__desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* Case card */
.case-card {
  display: block;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
}
.case-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}
.case-card__title {
  font-weight: 700;
  font-size: 18px;
  margin: 0 0 8px;
  line-height: 1.35;
}
.case-card__desc {
  font-weight: 400;
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0 0 20px;
  line-height: 1.6;
}
.case-card__divider {
  border-top: 1px solid var(--color-divider);
  margin-bottom: 16px;
}
.case-card__author {
  display: flex;
  align-items: center;
  gap: 10px;
}
.case-card__author-name {
  font-size: 14px;
  font-weight: 500;
}
.avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 11px;
}
.avatar--known {
  background: var(--color-accent);
  color: var(--color-ink);
}
.avatar--photo {
  object-fit: cover;
  background: var(--color-chip-bg);
}
.avatar--unknown {
  background: var(--color-chip-bg);
  color: var(--color-text-muted);
}

/* Grid */
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 980px) {
  .case-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .case-grid { grid-template-columns: 1fr; }
}

/* Empty state */
.empty-card {
  border: 1.5px dashed var(--color-border-dashed);
  border-radius: var(--radius-card);
  padding: 28px 20px;
  text-align: center;
  color: var(--color-text-faint);
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 120px;
}
.empty-card--cta {
  color: var(--color-ink);
  flex-direction: column;
  gap: 14px;
}
.empty-strip {
  border: 1.5px dashed var(--color-border-dashed);
  border-radius: var(--radius-card);
  padding: 32px;
  text-align: center;
  color: var(--color-text-faint);
  font-size: 14px;
  margin-bottom: 32px;
}
.empty-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 860px) {
  .empty-grid { grid-template-columns: 1fr; }
}

/* Search bar */
.search-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  max-width: 640px;
  margin-bottom: 40px;
}
.search-bar input {
  flex: 1;
  min-width: 200px;
}
.search-bar input,
.search-bar select {
  font-family: var(--font-body);
  font-size: 15px;
  padding: 14px 18px;
  border-radius: var(--radius-button);
  border: 1px solid var(--color-border);
  background: var(--color-card);
  color: var(--color-ink);
}
.search-bar input::placeholder { color: var(--color-text-muted); }
.search-bar select {
  appearance: none;
  -webkit-appearance: none;
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 13px;
  letter-spacing: 0.02em;
  background-color: var(--color-accent);
  color: var(--color-ink);
  border: none;
  padding: 0 40px 0 18px;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23171512' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 11px;
}
.search-bar select:hover { filter: brightness(0.95); }

/* Footer */
.footer {
  background: var(--color-ink);
  color: rgba(255,255,255,0.7);
  padding: 40px 0;
  margin-top: 80px;
}
.footer .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.footer__brand {
  font-size: 15px;
}
.footer__meta {
  font-size: 13px;
  color: rgba(255,255,255,0.55);
}
.footer__meta a {
  text-decoration: underline;
  text-underline-offset: 2px;
  color: rgba(255,255,255,0.8);
}
.footer__meta a:hover { color: #fff; }

/* Case detail page */
.case-header {
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--color-border);
}
.case-header__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}
.case-header__title {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 34px;
  line-height: 1.25;
  margin: 0;
  max-width: 720px;
}

.case-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 56px;
  padding-top: 48px;
  padding-bottom: 96px;
  align-items: start;
}
@media (max-width: 900px) {
  .case-layout { grid-template-columns: 1fr; }
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
@media (max-width: 760px) {
  .about-grid { grid-template-columns: 1fr; }
}

.case-body__section { margin-bottom: 40px; }
.case-body__section p {
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-body-copy);
  max-width: 640px;
  margin: 0;
}

.checklist { display: flex; flex-direction: column; gap: 14px; max-width: 640px; }
.checklist__item { display: flex; align-items: flex-start; gap: 12px; }
.checklist__icon {
  width: 18px;
  height: 18px;
  min-width: 18px;
  background: var(--color-accent);
  border-radius: 0;
  margin-top: 3px;
  position: relative;
}
.checklist__icon::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 3px;
  width: 8px;
  height: 5px;
  border-left: 2px solid var(--color-ink);
  border-bottom: 2px solid var(--color-ink);
  transform: rotate(-45deg);
}
.checklist__item p { margin: 0; font-size: 15px; line-height: 1.6; }

.case-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: 24px;
}
@media (max-width: 900px) {
  .case-sidebar { position: static; }
}

.panel {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
}
.panel__title {
  font-weight: 700;
  font-size: 15px;
  margin: 0 0 4px;
}
.panel__subtext {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin: 0 0 18px;
}
.panel .btn { width: 100%; }
.panel__note {
  font-size: 12px;
  color: var(--color-text-muted);
  margin: 14px 0 0;
  line-height: 1.5;
}

.expert-card__top {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.expert-card__avatar {
  width: 44px;
  height: 44px;
  font-size: 15px;
}
.expert-card__name { font-weight: 700; font-size: 15px; }
.expert-card__role { font-size: 12px; color: var(--color-text-muted); }
.expert-card__languages {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}
.expert-card__bio {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0 0 16px;
}

.case-notice {
  background: var(--color-ink);
  border-radius: var(--radius-card);
  padding: 24px;
  margin-bottom: 40px;
}
.case-notice--tight {
  padding: 18px;
  margin-bottom: 16px;
}
.case-notice__label {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--color-accent);
  margin: 0 0 8px;
}
.case-notice__text {
  font-size: 15px;
  line-height: 1.6;
  color: #fff;
  margin: 0;
  max-width: 640px;
}

.not-found {
  padding: 96px 0;
  text-align: center;
}
.not-found h1 {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 26px;
}

/* Share-a-case form */
.field { margin-bottom: 20px; }
.field label {
  display: block;
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 8px;
}
.field input,
.field textarea,
.field select {
  width: 100%;
  font-family: var(--font-body);
  font-size: 15px;
  padding: 12px 16px;
  border-radius: var(--radius-button);
  border: 1px solid var(--color-border);
  background: var(--color-card);
  color: var(--color-ink);
}
.field input::placeholder,
.field textarea::placeholder { color: var(--color-text-muted); }
.field textarea { min-height: 110px; resize: vertical; font-family: var(--font-body); }
.field select { appearance: auto; }
.form-row {
  display: flex;
  gap: 16px;
}
.form-row .field { flex: 1; min-width: 0; }
.form-status {
  margin-top: 16px;
  font-size: 14px;
  border-radius: var(--radius-button);
  padding: 12px 16px;
}
.form-status--success { background: var(--color-accent); color: var(--color-ink); }
.form-status--error { background: #F5D9D9; color: #6B2A2A; }
.form-status[hidden] { display: none; }