:root {
  color-scheme: light;
  --page: #f6f5f1;
  --surface: #fffefa;
  --surface-soft: #eaece7;
  --text: #1b2624;
  --muted: #66706b;
  --line: #d7dcd4;
  --accent: #417a69;
  --accent-strong: #265e4e;
  --accent-text: #ffffff;
  --art: #e2e9df;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--page);
  color: var(--text);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #12191b;
  --surface: #1a2425;
  --surface-soft: #23302f;
  --text: #edf2ed;
  --muted: #a6b4ad;
  --line: #34413e;
  --accent: #9ccdb2;
  --accent-strong: #b9dfc9;
  --accent-text: #16251e;
  --art: #243a35;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; }
a { color: inherit; }
button { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }

.site-shell {
  width: min(100% - 3rem, 1240px);
  min-height: 100vh;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
}
.site-header {
  min-height: 106px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
}
.brand {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}
.brand-mark { display: block; width: 48px; height: 48px; border-radius: 9px; }
.accent { color: var(--accent); }
.main-nav, .controls { display: flex; align-items: center; }
.main-nav { gap: clamp(1.25rem, 3vw, 2.75rem); }
.main-nav a {
  color: var(--muted);
  font-size: .91rem;
  font-weight: 600;
  text-decoration: none;
  transition: color .2s;
}
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--text); }
.controls { justify-self: end; gap: .6rem; }
.control-button {
  width: 42px;
  height: 42px;
  display: inline-grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font-size: .77rem;
  font-weight: 750;
  transition: border-color .2s, background .2s;
}
.control-button:hover { border-color: var(--accent); background: var(--surface-soft); }
.theme-button svg { width: 19px; height: 19px; }
.moon-icon, :root[data-theme="dark"] .sun-icon { display: none; }
:root[data-theme="dark"] .moon-icon { display: block; }

main { flex: 1; }
.hero {
  min-height: 640px;
  display: grid;
  grid-template-columns: 1.12fr .88fr;
  align-items: center;
  gap: clamp(2rem, 5vw, 6rem);
  padding-block: 5rem 6rem;
}
.hero-copy { position: relative; z-index: 1; }
.eyebrow {
  display: flex;
  align-items: center;
  gap: .8rem;
  margin: 0 0 2rem;
  color: var(--accent-strong);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.eyebrow-line { width: 28px; height: 1px; background: currentColor; }
.hero h1 {
  margin: 0;
  font-size: clamp(4.1rem, 7.4vw, 7.75rem);
  font-weight: 720;
  letter-spacing: -.085em;
  line-height: .98;
}
.hero-intro {
  max-width: 560px;
  margin: 2.1rem 0 0;
  color: var(--muted);
  font-size: clamp(1.15rem, 1.8vw, 1.5rem);
  line-height: 1.58;
}
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 1.75rem; margin-top: 2.7rem; }
.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1.4rem;
  padding: .85rem 1.35rem;
  border-radius: 6px;
  font-size: .91rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform .2s, background .2s;
}
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--accent-strong); color: var(--accent-text); }
.button-primary:hover { background: var(--accent); }
.text-link, .section-link, .back-link {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  color: var(--text);
  font-size: .91rem;
  font-weight: 700;
  text-decoration-color: var(--accent);
  text-underline-offset: 6px;
}
.text-link:hover, .section-link:hover, .back-link:hover { color: var(--accent-strong); }

.hero-art {
  width: min(100%, 520px);
  aspect-ratio: 1;
  justify-self: end;
  position: relative;
  display: grid;
  place-items: center;
}
.hero-art::before {
  content: "";
  position: absolute;
  width: 82%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--art);
  filter: blur(70px);
  opacity: .55;
}
.hero-art img { position: relative; display: block; width: 100%; height: auto; }

.section { border-top: 1px solid var(--line); padding-block: 4.4rem 5rem; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 1.5rem; margin-bottom: 2.2rem; }
.section-index { margin: 0 0 1rem; color: var(--accent-strong); font-size: .75rem; font-weight: 750; letter-spacing: .14em; text-transform: uppercase; }
.section h2 { margin: 0; font-size: clamp(2.5rem, 4.8vw, 4.2rem); letter-spacing: -.065em; line-height: 1.08; }
.section-link { padding-bottom: .55rem; }
.application-preview {
  min-height: 156px;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem 2rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  text-decoration: none;
  transition: border-color .2s, transform .2s;
}
.application-preview:hover { border-color: var(--accent); transform: translateY(-3px); }
.app-icon {
  flex: 0 0 auto;
  width: 72px;
  height: 72px;
  border-radius: 17px;
  object-fit: cover;
}
.app-preview-copy { display: grid; gap: .55rem; }
.app-preview-copy strong { font-size: clamp(1.15rem, 2vw, 1.4rem); letter-spacing: -.03em; }
.app-preview-copy > span { color: var(--muted); font-size: .96rem; line-height: 1.5; }
.app-arrow { margin-left: auto; color: var(--accent-strong); font-size: 1.5rem; }

.contact-section { display: grid; grid-template-columns: 1fr .82fr; gap: 3rem; }
.section-description { max-width: 450px; margin: 1.5rem 0 0; color: var(--muted); font-size: 1.08rem; line-height: 1.65; }
.contact-links { align-self: end; }
.contact-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--line);
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  font-weight: 650;
  letter-spacing: -.035em;
  text-decoration: none;
  transition: color .2s;
}
.contact-links a:first-child { border-top: 1px solid var(--line); }
.contact-links a:hover { color: var(--accent-strong); }
.contact-links a span:last-child { color: var(--accent-strong); }
.site-footer {
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .84rem;
}

.applications-main { padding-block: 6rem 5rem; }
.page-intro h1 { margin: 0; font-size: clamp(3.8rem, 7vw, 6.5rem); letter-spacing: -.075em; line-height: 1; }
.page-intro > p:last-child { max-width: 600px; margin: 1.5rem 0 0; color: var(--muted); font-size: 1.2rem; line-height: 1.6; }
.app-list { margin-top: 4rem; }
.app-card {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 3rem;
  min-height: 390px;
  padding: clamp(1.75rem, 4vw, 3.5rem);
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
}
.app-card-top { display: flex; flex-direction: column; align-items: flex-start; justify-content: space-between; }
.app-icon-large { width: 230px; height: 230px; border-radius: 42px; }
.app-number { color: var(--muted); font-size: .78rem; font-weight: 700; letter-spacing: .14em; }
.app-card-copy { display: flex; flex-direction: column; align-items: flex-start; justify-content: center; }
.app-category { margin: 0 0 1rem; color: var(--accent-strong); font-size: .76rem; font-weight: 750; letter-spacing: .14em; text-transform: uppercase; }
.app-card h2 { max-width: 620px; margin: 0; font-size: clamp(2.4rem, 4vw, 4rem); letter-spacing: -.07em; line-height: 1.08; }
.app-card-copy > p:not(.app-category) { max-width: 560px; margin: 1.3rem 0 2rem; color: var(--muted); font-size: 1.07rem; line-height: 1.7; }
.back-link { margin-top: 3rem; }

@media (max-width: 800px) {
  .hero { min-height: unset; grid-template-columns: 1fr; padding-block: 5rem 4.5rem; }
  .hero-art { width: min(68%, 350px); justify-self: center; }
  .contact-section { grid-template-columns: 1fr; gap: 2.5rem; }
  .app-card { grid-template-columns: 1fr; gap: 2rem; }
  .app-card-top { flex-direction: row; align-items: start; }
}
@media (max-width: 600px) {
  .site-shell { width: min(100% - 2rem, 1240px); }
  .site-header { min-height: 94px; grid-template-columns: 1fr auto; gap: .75rem; padding-block: 1rem; }
  .main-nav { grid-column: 1 / -1; grid-row: 2; justify-content: space-between; gap: .65rem; padding-top: .7rem; }
  .main-nav a { font-size: .82rem; }
  .controls { grid-column: 2; grid-row: 1; }
  .hero { gap: 3rem; padding-block: 4rem; }
  .hero h1 { font-size: clamp(3.8rem, 13vw, 5.2rem); }
  .hero-intro { margin-top: 1.6rem; }
  .hero-actions { gap: 1.2rem; }
  .hero-art { width: min(86%, 340px); }
  .section { padding-block: 3.5rem; }
  .section-heading { align-items: flex-start; flex-direction: column; }
  .section-link { padding-bottom: 0; }
  .application-preview { gap: 1rem; min-height: 132px; padding: 1.1rem; }
  .app-icon { width: 58px; height: 58px; border-radius: 14px; }
  .app-preview-copy > span { font-size: .87rem; }
  .app-icon-large { width: 184px; height: 184px; border-radius: 34px; }
  .applications-main { padding-block: 4rem; }
  .app-list { margin-top: 3rem; }
  .site-footer { min-height: 95px; align-items: flex-start; flex-direction: column; justify-content: center; gap: .45rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}