:root {
  --bg: #f5f2ea;
  --text: #111111;
  --muted: #5f5f5f;
  --line: #ddd7cb;
  --teal: #0b8a8f;
  --teal-hover: #08757a;
  --max: 1120px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, sans-serif;
  line-height: 1.65;
}

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.4rem;
}

.section {
  padding: 4.5rem 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(245, 242, 234, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  border-bottom-color: var(--line);
}

.nav-wrap {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  border: 0;
  background: none;
  color: var(--text);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
}

.brand-cluster {
  align-items: center;
  display: flex;
  gap: 0.65rem;
}

.brand-email {
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  display: grid;
  height: 30px;
  justify-items: center;
  transition: all 0.2s ease;
  width: 30px;
}

.brand-email:hover {
  background: var(--teal);
  border-color: var(--teal);
  color: #fff;
}

.brand-email svg {
  fill: currentColor;
  height: 15px;
  width: 15px;
}

.email-link {
  position: relative;
}

.email-link.copied::after {
  background: var(--text);
  border-radius: 999px;
  color: #fff;
  content: "copied";
  font-family: Inter, system-ui, sans-serif;
  font-size: 0.68rem;
  font-weight: 600;
  left: 50%;
  line-height: 1;
  padding: 0.35rem 0.5rem;
  pointer-events: none;
  position: absolute;
  top: calc(100% + 0.4rem);
  transform: translateX(-50%);
  white-space: nowrap;
  z-index: 30;
}

.contact-socials .email-link.copied::after {
  bottom: calc(100% + 0.4rem);
  top: auto;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 1.1rem;
}

.desktop-nav button {
  border: 0;
  background: none;
  color: var(--text);
  cursor: pointer;
  font-size: 0.92rem;
  position: relative;
  padding-bottom: 0.1rem;
}

.desktop-nav button::after,
.contact-links > a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--teal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

.desktop-nav button:hover::after,
.contact-links > a:hover::after {
  transform: scaleX(1);
}

.social-icons {
  display: inline-flex;
  gap: 0.45rem;
}

.social-icons a {
  width: 30px;
  height: 30px;
  border: 1px solid var(--line);
  border-radius: 999px;
  display: grid;
  place-items: center;
  color: var(--text);
  transition: all 0.2s ease;
}

.social-icons a:hover {
  background: var(--teal);
  color: #fff;
  border-color: var(--teal);
}

.social-icons svg {
  width: 15px;
  height: 15px;
  fill: currentColor;
}

.talk-link {
  background: var(--teal);
  border-radius: 10px;
  color: #fff;
  font-family: "IBM Plex Mono", monospace;
  font-weight: 600;
  line-height: 1;
  padding: 0.52rem 0.72rem;
  text-decoration: none;
  font-size: 0.86rem;
  text-transform: lowercase;
  transition: background 0.2s ease;
}

.talk-link:hover {
  background: var(--teal-hover);
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: none;
}

.menu-toggle span {
  display: block;
  width: 16px;
  height: 1.5px;
  background: var(--text);
  margin: 6px auto;
  transition: transform 0.2s ease;
}

.menu-toggle.open span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.menu-toggle.open span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

.mobile-nav {
  display: none;
  padding: 0 1.4rem 1rem;
  border-top: 1px solid var(--line);
}

.mobile-nav.open {
  display: grid;
  gap: 0.3rem;
}

.mobile-nav button,
.mobile-nav a {
  color: var(--text);
  text-decoration: none;
  border: 0;
  background: none;
  text-align: left;
  padding: 0.5rem 0;
  font-size: 0.95rem;
}

.mobile-nav__cta {
  background: var(--teal) !important;
  border-radius: 10px;
  color: #fff !important;
  display: inline-block;
  font-family: "IBM Plex Mono", monospace;
  font-weight: 600;
  justify-self: start;
  margin: 0.35rem 0 0.45rem;
  padding: 0.62rem 0.9rem !important;
  text-transform: lowercase;
}

.mobile-nav__socials {
  border-top: 1px solid var(--line);
  gap: 0.2rem 1rem;
  margin-top: 0.35rem;
  padding-top: 0.65rem;
}

.mobile-nav .mobile-nav__socials a {
  padding: 0;
  text-align: center;
}

.hero {
  padding-top: 2.6rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 340px);
  gap: clamp(3rem, 6vw, 5rem);
  align-items: start;
}

.kicker {
  margin: 0 0 0.6rem;
  font-size: 0.78rem;
  text-transform: lowercase;
  letter-spacing: 0.15em;
  color: var(--muted);
}

h1 {
  font-family: "IBM Plex Mono", monospace;
  font-size: clamp(2rem, 6vw, 3.6rem);
  line-height: 1;
  letter-spacing: 0;
  margin: 0 0 1.2rem;
  text-transform: none;
}

h1 span {
  color: var(--teal);
}

.hero-copy h1 {
  font-size: clamp(2.35rem, 4.8vw, 3.25rem);
  white-space: nowrap;
}

.hero-text p {
  margin: 0.85rem 0;
  max-width: 68ch;
  font-size: 0.92rem;
  line-height: 1.5;
}

.hero-text ul {
  margin: 0.7rem 0 0.85rem 1.1rem;
  font-size: 0.92rem;
  line-height: 1.5;
}

.hero-image-wrap {
  position: sticky;
  top: 96px;
}

.hero-image {
  width: 100%;
  max-width: 340px;
  border-radius: 14px;
  border: 1px solid var(--line);
  display: block;
  object-fit: cover;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.hero-image-wrap:hover .hero-image {
  transform: scale(1.03);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.btn {
  margin-top: 1rem;
  display: inline-block;
  text-decoration: none;
  background: var(--teal);
  color: #fff;
  padding: 0.76rem 1.15rem;
  border-radius: 10px;
  font-weight: 600;
  font-family: "IBM Plex Mono", monospace;
  text-transform: lowercase;
}

.btn:hover {
  background: var(--teal-hover);
}

.scroll-note {
  text-align: center;
  margin-top: clamp(3.5rem, 7vh, 5.5rem);
  color: var(--muted);
  font-size: 0.78rem;
}

.section-title {
  font-family: "IBM Plex Mono", monospace;
  font-size: clamp(2rem, 5vw, 3rem);
  margin: 0 0 1.4rem;
  letter-spacing: 0;
  text-transform: lowercase;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.4rem 1.9rem;
}

#cases .container {
  max-width: 1280px;
}

.case-card {
  text-decoration: none;
  color: var(--text);
  display: block;
}

.case-card:hover .case-brand-panel {
  transform: scale(1.035);
}

.case-card h3 {
  font-size: 1.15rem;
  line-height: 1.18;
  margin: 1.05rem 0 0.25rem;
}

.case-card p {
  margin: 0;
}

.case-media {
  aspect-ratio: 1.44;
  border-radius: 22px;
  overflow: hidden;
  position: relative;
}

.case-brand-panel {
  align-items: center;
  background: #f6efe7;
  border: 1px solid var(--line);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.58),
    inset 0 -48px 90px rgba(17, 17, 17, 0.04);
  display: flex;
  isolation: isolate;
  justify-content: center;
  transition: transform 0.35s ease;
}

.case-brand-panel::before,
.case-brand-panel::after {
  content: "";
  pointer-events: none;
  position: absolute;
}

.case-brand-panel::before {
  filter: blur(14px);
  inset: -18%;
  opacity: 0.9;
  z-index: 0;
}

.case-brand-panel::after {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.28), transparent 42%),
    radial-gradient(circle at 50% 115%, rgba(17, 17, 17, 0.08), transparent 48%);
  inset: 0;
  z-index: 1;
}

.case-brand-panel--amazon {
  background:
    radial-gradient(circle at 70% 20%, rgba(255, 153, 0, 0.2), transparent 38%),
    linear-gradient(135deg, #050505 0%, #101010 48%, #3a230c 100%);
}

.case-brand-panel--amazon::before {
  background:
    radial-gradient(circle at 78% 12%, rgba(255, 153, 0, 0.44), transparent 34%),
    radial-gradient(circle at 18% 80%, rgba(255, 255, 255, 0.12), transparent 36%);
}

.case-brand-panel--scispace {
  background:
    linear-gradient(135deg, #faffff 0%, #edf9fb 48%, #fff2e8 100%);
}

.case-brand-panel--scispace::before {
  background:
    radial-gradient(circle at 30% 22%, rgba(112, 190, 214, 0.36), transparent 36%),
    radial-gradient(circle at 76% 78%, rgba(255, 126, 36, 0.24), transparent 38%);
}

.case-brand-panel--ralus {
  background:
    linear-gradient(135deg, #f3ffef 0%, #dcefe8 52%, #eef8ef 100%);
}

.case-brand-panel--ralus::before {
  background:
    radial-gradient(circle at 30% 22%, rgba(178, 247, 151, 0.6), transparent 34%),
    radial-gradient(circle at 74% 76%, rgba(23, 117, 89, 0.12), transparent 36%);
}

.case-brand-panel--polyglot {
  background:
    linear-gradient(135deg, #fbf1e4 0%, #e6ded4 50%, #eef5ed 100%);
}

.case-brand-panel--polyglot::before {
  background:
    radial-gradient(circle at 32% 26%, rgba(67, 53, 40, 0.16), transparent 34%),
    radial-gradient(circle at 76% 74%, rgba(11, 138, 143, 0.16), transparent 36%);
}

.case-logo-img {
  filter: drop-shadow(0 20px 36px rgba(17, 17, 17, 0.12));
  max-width: min(54%, 260px);
  position: relative;
  width: 100%;
  z-index: 2;
}

.case-logo-img--amazon {
  max-width: min(48%, 260px);
  mix-blend-mode: screen;
  opacity: 0.96;
}

.case-logo-img--scispace {
  max-width: min(50%, 250px);
  mix-blend-mode: multiply;
}

.case-logo-img--icon {
  border-radius: 24%;
  max-width: min(28%, 140px);
}

.case-logo-img--polyglot {
  mix-blend-mode: multiply;
}

.case-source {
  color: var(--muted);
  font-weight: 600;
  line-height: 1.25;
}

.case-meta span {
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #343434;
  font-size: 0.74rem;
  line-height: 1.2;
  padding: 0.24rem 0.58rem;
}

.contact-wrap p {
  max-width: 60ch;
}

.contact-links {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem 1.2rem;
  margin-top: 1rem;
}

.contact-links a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  position: relative;
}

.contact-links a:hover {
  color: var(--teal);
}

.contact-socials a {
  border-bottom: 0;
  padding-bottom: 0;
}

.contact-socials a:hover {
  color: #fff;
}

/* Case page */
.case-page {
  max-width: 760px;
  margin: 0 auto;
  padding: 3rem 1.4rem 4rem;
}

.back-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
}

.case-page h1 {
  font-size: clamp(2.2rem, 7vw, 3.5rem);
  margin-top: 0.6rem;
}

.case-article {
  margin-top: 0.9rem;
}

.case-page .summary {
  font-size: 1.1rem;
  color: #222;
  margin-bottom: 1.2rem;
}

.case-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.2rem;
}

.markdown-body {
  color: #202020;
  font-size: 1rem;
  line-height: 1.72;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
  color: var(--text);
  line-height: 1.16;
}

.markdown-body h1 {
  font-size: clamp(2rem, 6vw, 3.35rem);
  margin: 0.85rem 0 1rem;
}

.markdown-body h2 {
  font-size: 1.25rem;
  margin: 2.1rem 0 0.75rem;
}

.markdown-body h3 {
  font-size: 1.05rem;
  margin: 1.7rem 0 0.65rem;
}

.markdown-body p {
  margin: 0 0 1.05rem;
}

.markdown-body strong {
  color: var(--teal);
  font-weight: 600;
}

.markdown-body ul {
  margin: 0 0 1.05rem 1.2rem;
  padding: 0;
}

.markdown-body li {
  margin: 0.25rem 0;
}

.markdown-body img,
.markdown-figure img,
.markdown-gallery img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.markdown-figure {
  margin: 0;
}

.markdown-figure img {
  margin: 1.25rem 0 1.5rem;
}

.markdown-gallery {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 1.25rem 0 1.5rem;
}

.markdown-gallery img {
  aspect-ratio: 0.68;
  margin: 0;
  object-fit: cover;
  object-position: top;
}

.markdown-body a {
  color: var(--teal);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

@media (max-width: 900px) {
  .section {
    padding: 3.5rem 0;
  }

  .desktop-nav {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .hero-grid,
  .cases-grid {
    grid-template-columns: 1fr;
  }

  .hero-image-wrap {
    position: static;
  }

  .hero-copy h1 {
    font-size: clamp(2rem, 10vw, 3.2rem);
    white-space: normal;
  }

  .hero-text p,
  .hero-text ul {
    font-size: 0.95rem;
  }

}

@media (max-width: 640px) {
  .markdown-gallery {
    grid-template-columns: 1fr;
  }
}