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

html {
  scroll-behavior: smooth;
  max-width: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  width: 100%;
  max-width: 100%;
  font-family: var(--font-sans);
  background: var(--page-bg);
  color: var(--text);
  line-height: var(--leading);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  opacity: 0.12;
  mask-image: linear-gradient(to bottom, black, transparent);
}

main {
  min-width: 0;
}

.skip {
  position: absolute;
  top: -96px;
  left: var(--space-4);
  z-index: 300;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-2);
  background: var(--text);
  color: var(--bg);
  font-weight: 800;
  text-decoration: none;
}

.skip:focus {
  top: var(--space-4);
}

.progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 400;
  width: 0;
  height: 4px;
  background: var(--gradient-progress);
  box-shadow: var(--shadow-glow-cyan);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 84%, transparent);
  backdrop-filter: blur(20px) saturate(140%);
}

.header-inner {
  max-width: var(--max-width);
  width: 100%;
  min-height: var(--header-height);
  margin: 0 auto;
  padding: var(--space-3) var(--space-5);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-4);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--text);
  text-decoration: none;
  min-width: max-content;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-2);
}

.brand span {
  display: grid;
  gap: var(--space-1);
}

.brand strong {
  font-size: 1rem;
  line-height: 1;
}

.brand small {
  color: var(--text-muted);
  font-size: 0.72rem;
  line-height: 1.2;
}

.site-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  min-width: 0;
  max-width: 100%;
}

.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 750;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-pill);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
  background: var(--card-hover);
}

.header-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: var(--space-2);
  min-width: 0;
  max-width: 100%;
}

.hero {
  width: 100%;
  min-height: calc(100vh - var(--header-height));
  display: grid;
  align-items: center;
  gap: var(--space-7);
  padding: 0 0 var(--space-9);
  background: var(--gradient-hero);
}

.hero-grid {
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--space-5);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-7);
}

.hero-copy {
  display: grid;
  gap: var(--space-5);
  max-width: 880px;
  min-width: 0;
  margin: 0 auto;
  text-align: center;
  padding-top: var(--space-9);
}

.hero-copy h1 {
  max-width: 920px;
  margin-left: auto;
  margin-right: auto;
}

.hero-copy p {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  justify-content: center;
}

.section {
  padding: var(--space-9) var(--space-5);
  border-top: 1px solid var(--line);
}

.section:nth-of-type(even) {
  background: color-mix(in srgb, var(--bg2) 62%, transparent);
}

.section > * {
  max-width: var(--max-width);
  min-width: 0;
  margin-left: auto;
  margin-right: auto;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(280px, 1fr);
  gap: var(--space-7);
  align-items: end;
  margin-bottom: var(--space-7);
}

.section-head p {
  margin: 0;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  color: var(--cyan);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section-kicker::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: var(--radius-pill);
  background: var(--lime);
  box-shadow: var(--shadow-glow-cyan);
}

h1, h2, h3, h4, p { margin-top: 0; }

h1, h2, h3, h4 {
  color: var(--text);
  line-height: 1.1;
  letter-spacing: var(--tracking);
  overflow-wrap: anywhere;
}

h1 {
  margin-bottom: 0;
  font-size: 3.8rem;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

h2 { margin-bottom: 0; font-size: 2.4rem; }
h3 { margin-bottom: var(--space-2); font-size: 1.08rem; }

p {
  color: var(--text-muted);
  overflow-wrap: anywhere;
}

.hero-copy p,
.section-head p {
  color: var(--text-soft);
  font-size: 1.1rem;
}

.footer {
  border-top: 1px solid var(--line);
  padding: var(--space-7) var(--space-5);
  text-align: center;
  background: var(--bg-deep);
}

.footer p {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer span { color: var(--text-dim); }

.noscript {
  max-width: var(--max-width);
  margin: var(--space-5) auto;
  padding: var(--space-4);
  color: var(--text);
}

@media (max-width: 1040px) {
  .header-inner {
    grid-template-columns: auto auto;
  }
  .site-nav {
    grid-column: 1 / -1;
    justify-content: flex-start;
  }
  .header-actions {
    grid-column: 1 / -1;
    justify-content: flex-start;
    flex-wrap: wrap;
  }
  .section-head {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
}

@media (max-width: 720px) {
  .header-inner {
    grid-template-columns: 1fr auto;
    overflow: hidden;
  }
  .brand { min-width: 0; }
  .brand span { min-width: 0; }
  .brand strong,
  .brand small {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .nav-toggle { display: none; }
  .site-nav {
    display: flex;
    grid-column: 1 / -1;
    width: 100%;
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: thin;
  }
  .site-nav a {
    flex: 0 0 auto;
    padding: var(--space-3);
    border: 1px solid var(--line);
  }
  .header-actions {
    grid-column: 1 / -1;
    display: grid;
    justify-content: stretch;
    align-items: start;
    gap: var(--space-2);
  }
  .theme-toggle { justify-self: start; }
  .hero {
    min-height: auto;
    width: 100vw;
    max-width: 100vw;
  }
  .hero-grid {
    width: calc(100vw - (var(--space-5) * 2));
    max-width: calc(100vw - (var(--space-5) * 2));
  }
  .hero-copy {
    width: calc(100vw - (var(--space-5) * 2));
    max-width: calc(100vw - (var(--space-5) * 2));
    padding-top: var(--space-7);
  }
  .section {
    width: 100vw;
    max-width: 100vw;
  }
  .section > * {
    width: calc(100vw - (var(--space-5) * 2));
    max-width: calc(100vw - (var(--space-5) * 2));
  }
  .hero-copy h1 {
    max-width: 13ch;
    font-size: 1.78rem;
    line-height: 1.16;
    word-break: break-all;
    line-break: anywhere;
  }
  h2 { font-size: 1.7rem; }
  .hero-copy p,
  .section-head p { font-size: 0.98rem; }
  .hero-copy p { max-width: 26ch; }
}

@media (min-width: 721px) {
  .nav-toggle { display: none; }
}