/**
 * Global layout, header, footer
 */

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
  font-family: var(--sbc-font);
  font-size: var(--sbc-text-base);
  line-height: var(--sbc-leading-normal);
  color: var(--sbc-text);
  background: var(--sbc-bg);
  min-height: 100vh;
}

a {
  color: var(--sbc-accent);
  transition: color var(--sbc-transition);
}

a:hover {
  color: var(--sbc-accent-hover);
}

img {
  max-width: 100%;
  height: auto;
}

.container {
  width: min(100% - var(--sbc-space-8), var(--sbc-max-marketing));
  margin-inline: auto;
}

.container--narrow {
  width: min(100% - var(--sbc-space-8), var(--sbc-max-content));
}

.container--app {
  width: min(100% - var(--sbc-space-8), var(--sbc-max-app));
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--sbc-header-h);
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--sbc-border);
  background: color-mix(in srgb, var(--sbc-surface) 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sbc-space-4);
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--sbc-space-3);
  text-decoration: none;
  color: var(--sbc-text);
}

.site-brand:hover {
  color: var(--sbc-text);
}

.site-brand__mark {
  width: 2rem;
  height: 2rem;
  flex-shrink: 0;
}

.site-title {
  margin: 0;
  font-size: var(--sbc-text-base);
  font-weight: var(--sbc-weight-semibold);
  letter-spacing: -0.02em;
}

.site-title a {
  color: inherit;
  text-decoration: none;
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--sbc-space-2);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--sbc-space-1);
}

.site-nav a {
  padding: var(--sbc-space-2) var(--sbc-space-3);
  font-size: var(--sbc-text-sm);
  font-weight: var(--sbc-weight-medium);
  color: var(--sbc-text-secondary);
  text-decoration: none;
  border-radius: var(--sbc-radius-sm);
  transition: background var(--sbc-transition), color var(--sbc-transition);
}

.site-nav a:hover {
  background: var(--sbc-bg-subtle);
  color: var(--sbc-text);
}

.site-nav a.is-active {
  color: var(--sbc-text);
  background: var(--sbc-bg-subtle);
}

.sbc-theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  border: 1px solid var(--sbc-border);
  border-radius: var(--sbc-radius-sm);
  background: var(--sbc-surface);
  color: var(--sbc-text-secondary);
  cursor: pointer;
  transition: background var(--sbc-transition), border-color var(--sbc-transition), color var(--sbc-transition);
}

.sbc-theme-toggle:hover {
  background: var(--sbc-bg-subtle);
  color: var(--sbc-text);
}

.sbc-theme-toggle svg {
  width: 1.125rem;
  height: 1.125rem;
}

.sbc-theme-toggle .icon-sun {
  display: none;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .sbc-theme-toggle .icon-moon {
    display: none;
  }

  :root:not([data-theme="light"]) .sbc-theme-toggle .icon-sun {
    display: block;
  }
}

:root[data-theme="dark"] .sbc-theme-toggle .icon-moon {
  display: none;
}

:root[data-theme="dark"] .sbc-theme-toggle .icon-sun {
  display: block;
}

:root[data-theme="light"] .sbc-theme-toggle .icon-sun {
  display: none;
}

:root[data-theme="light"] .sbc-theme-toggle .icon-moon {
  display: block;
}

/* Main & footer */
.site-main {
  padding: var(--sbc-space-12) 0 var(--sbc-space-20);
}

.site-main--app {
  padding-top: var(--sbc-space-8);
}

.site-footer {
  padding: var(--sbc-space-10) 0 var(--sbc-space-8);
  border-top: 1px solid var(--sbc-border);
  background: var(--sbc-surface);
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sbc-space-4);
}

.site-footer__copy {
  margin: 0;
  font-size: var(--sbc-text-sm);
  color: var(--sbc-text-muted);
}

.site-footer__links {
  display: flex;
  gap: var(--sbc-space-5);
}

.site-footer__links a {
  font-size: var(--sbc-text-sm);
  color: var(--sbc-text-muted);
  text-decoration: none;
}

.site-footer__links a:hover {
  color: var(--sbc-text);
}

.screen-reader-text {
  clip: rect(1px, 1px, 1px, 1px);
  position: absolute !important;
  height: 1px;
  width: 1px;
  overflow: hidden;
  white-space: nowrap;
  border: 0;
}

@media (max-width: 640px) {
  .site-nav {
    display: none;
  }

  .site-header .sbc-btn--sm-nav {
    display: inline-flex;
  }
}

@media (min-width: 641px) {
  .site-header .sbc-btn--sm-nav {
    display: none;
  }
}