@import url("./variables.css");
@import url("./components.css");

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink-900);
  background: var(--white);
  font-family: var(--font);
  font-size: var(--step-0);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img, svg, video { display: block; max-width: 100%; }
a { color: inherit; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }

h1, h2, h3, h4 {
  margin: 0 0 var(--space-4);
  color: var(--ink-950);
  line-height: 1.12;
  letter-spacing: -.025em;
}
h1 { font-size: var(--step-4); }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-1); }
p { margin: 0 0 var(--space-5); }
ul, ol { margin: 0 0 var(--space-5); padding-left: 1.3rem; }

.container { width: min(100% - 2rem, var(--container)); margin-inline: auto; }
.narrow { width: min(100% - 2rem, var(--content)); margin-inline: auto; }
.section { padding-block: var(--space-8); }
.section--tight { padding-block: var(--space-7); }
.section--muted { background: var(--slate-100); }
.section--dark { color: var(--white); background: var(--ink-950); }
.section--dark h2, .section--dark h3 { color: var(--white); }

.grid { display: grid; gap: var(--space-5); }
.grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }

.eyebrow {
  margin-bottom: var(--space-3);
  color: var(--red-600);
  font-size: var(--step--1);
  font-weight: 850;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.lead {
  max-width: 47rem;
  color: var(--slate-600);
  font-size: var(--step-1);
}
.section--dark .lead { color: var(--slate-300); }

.skip-link {
  position: fixed;
  inset: .5rem auto auto .5rem;
  z-index: 999;
  padding: .75rem 1rem;
  color: var(--white);
  background: var(--ink-950);
  border-radius: var(--radius-sm);
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: rgb(255 255 255 / .97);
  border-bottom: 1px solid var(--slate-200);
  backdrop-filter: blur(12px);
}
.header-inner {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.brand { display: inline-flex; align-items: center; text-decoration: none; }
.brand img { width: clamp(13.5rem, 27vw, 18.5rem); }

.nav-toggle {
  width: 2.9rem;
  height: 2.9rem;
  display: inline-grid;
  place-items: center;
  color: var(--ink-950);
  background: transparent;
  border: 1px solid var(--slate-300);
  border-radius: var(--radius-sm);
}
.nav-toggle svg { width: 1.45rem; }

.site-nav {
  position: fixed;
  inset: var(--header-h) 0 auto;
  display: none;
  padding: var(--space-5);
  background: var(--white);
  border-bottom: 1px solid var(--slate-200);
  box-shadow: var(--shadow-md);
}
.site-nav[data-open="true"] { display: block; }
.site-nav ul { display: grid; gap: var(--space-2); margin: 0; padding: 0; list-style: none; }
.site-nav a {
  display: block;
  padding: .75rem;
  font-weight: 750;
  text-decoration: none;
  border-radius: var(--radius-sm);
}
.site-nav a:hover,
.site-nav a[aria-current="page"] { color: var(--red-700); background: var(--red-050); }

.hero {
  position: relative;
  isolation: isolate;
  min-height: min(48rem, calc(100svh - var(--header-h)));
  display: grid;
  align-items: center;
  overflow: hidden;
  color: var(--white);
  background: var(--ink-950);
}
.hero__video,
.hero__poster {
  position: absolute;
  inset: 0;
  z-index: -3;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 60% center;
}
.hero__poster { display: none; }
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(90deg, rgb(8 11 16 / .93) 0%, rgb(8 11 16 / .78) 44%, rgb(8 11 16 / .24) 100%);
}
.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  z-index: -1;
  height: 9rem;
  background: linear-gradient(transparent, rgb(8 11 16 / .65));
}
.hero__copy { max-width: 46rem; padding-block: var(--space-9); }
.hero h1 { max-width: 14ch; color: var(--white); }
.hero .accent { color: var(--red-500); }
.hero p { max-width: 39rem; color: #eef0f3; font-size: var(--step-1); }
.hero__control {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  min-width: 3rem;
  min-height: 3rem;
  display: inline-grid;
  place-items: center;
  color: var(--white);
  background: rgb(8 11 16 / .72);
  border: 1px solid rgb(255 255 255 / .4);
  border-radius: var(--radius-pill);
}

.page-hero {
  padding-block: var(--space-8);
  color: var(--white);
  background:
    linear-gradient(105deg, rgb(8 11 16 / .98), rgb(8 11 16 / .78)),
    url("../images/essential-cyber-hero-poster.webp") center/cover;
}
.page-hero h1 { max-width: 17ch; color: var(--white); }
.page-hero p { max-width: 47rem; color: var(--slate-200); font-size: var(--step-1); }

.breadcrumbs { margin-bottom: var(--space-6); font-size: var(--step--1); }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: .5rem; margin: 0; padding: 0; list-style: none; }
.breadcrumbs li:not(:last-child)::after { content: "/"; margin-left: .5rem; color: var(--slate-500); }
.breadcrumbs a { color: var(--slate-300); }

.price-note {
  margin-top: var(--space-4);
  color: var(--slate-600);
  font-size: var(--step--1);
}
.price-note strong { color: var(--ink-900); }

.site-footer {
  padding-block: var(--space-7) var(--space-5);
  color: var(--slate-200);
  background: var(--ink-950);
}
.footer-grid { display: grid; gap: var(--space-6); }
.footer-brand img { width: 18rem; margin-bottom: var(--space-4); }
.footer-heading { color: var(--white); font-size: var(--step-0); }
.footer-links { margin: 0; padding: 0; list-style: none; }
.footer-links li + li { margin-top: .5rem; }
.footer-links a { color: var(--slate-200); text-underline-offset: .18em; }
.footer-meta {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  display: grid;
  gap: var(--space-2);
  color: var(--slate-500);
  font-size: var(--step--1);
  border-top: 1px solid var(--ink-700);
}

.prose > * + * { margin-top: var(--space-5); }
.prose h2 { margin-top: var(--space-7); }
.prose h3 { margin-top: var(--space-6); }

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0,0,0,0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}
:focus-visible { outline: 3px solid var(--red-500); outline-offset: 3px; }

@media (min-width: 48rem) {
  .grid--2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .grid--3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .grid--4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }
  .footer-meta { grid-template-columns: 1fr auto; }
}

@media (min-width: 64rem) {
  .nav-toggle { display: none; }
  .site-nav {
    position: static;
    display: block;
    padding: 0;
    border: 0;
    box-shadow: none;
  }
  .site-nav ul { display: flex; align-items: center; gap: .2rem; }
  .grid--4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .hero__video { display: none; }
  .hero__poster { display: block; }
  .hero__control { display: none; }
}