/*
 * impeccable.style — shared styles for sub-pages and the site-wide header
 *
 * Imported by all generated pages under /skills, /anti-patterns, /tutorials,
 * and by the hand-authored pages (index, cheatsheet, gallery, privacy) via
 * a direct <link> tag so they all share the same header + prose typography.
 */

@import "./tokens.css";

/* ============================================
   BASE
   ============================================ */

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ============================================
   SHARED SITE HEADER
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  padding: 14px clamp(var(--spacing-md), 4vw, var(--spacing-2xl));
  background: color-mix(in oklch, var(--color-paper) 94%, transparent);
  -webkit-backdrop-filter: saturate(1.4) blur(16px);
  backdrop-filter: saturate(1.4) blur(16px);
  border-bottom: 1px solid var(--color-mist);
}

/* Kill any inherited text-decoration from page-level `a` rules. */
.site-header a,
.site-header a:hover {
  text-decoration: none;
  text-decoration-thickness: 0;
}

.site-header-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-ink);
  flex-shrink: 0;
  transition: color var(--duration-fast) var(--ease-out);
}

.site-header-brand:hover {
  color: var(--color-accent);
}

.site-header-brand-logo {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  flex-shrink: 0;
}

.site-header-brand-name {
  display: inline-block;
}

.site-header-right {
  display: flex;
  align-items: center;
  gap: clamp(var(--spacing-sm), 2vw, var(--spacing-md));
  min-width: 0;
}

.site-header-nav {
  display: flex;
  align-items: center;
  gap: clamp(var(--spacing-sm), 2vw, var(--spacing-md));
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  min-width: 0;
}

.site-header-nav a {
  position: relative;
  display: inline-block;
  white-space: nowrap;
  color: var(--color-charcoal);
  padding: 4px 0;
  transition: color var(--duration-fast) var(--ease-out);
}

.site-header-nav a:hover {
  color: var(--color-accent);
}

.site-header-nav a[aria-current="page"] {
  color: var(--color-ink);
  font-weight: 600;
}

.site-header-nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}

/* GitHub star pill — subtle, inviting nudge without shouting */
.site-header-github {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px 4px 8px;
  border-radius: 99px;
  background: var(--color-cream);
  border: 1px solid var(--color-mist);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-charcoal);
  flex-shrink: 0;
  transition:
    background var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out);
}

.site-header-github svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.site-header-github:hover {
  background: var(--color-paper);
  border-color: var(--color-ink);
  color: var(--color-ink);
}

.site-header-github-star {
  color: #f59e0b;
  width: 12px;
  height: 12px;
  flex-shrink: 0;
}

@media (max-width: 820px) {
  .site-header {
    padding: 12px var(--spacing-md);
    gap: var(--spacing-sm);
  }

  .site-header-brand {
    font-size: 1.0625rem;
  }

  .site-header-brand-logo {
    width: 22px;
    height: 22px;
  }

  .site-header-right {
    gap: var(--spacing-sm);
  }

  .site-header-nav {
    font-size: 0.8125rem;
    gap: var(--spacing-sm);
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    /* fade the right edge so users see there's more to scroll */
    mask-image: linear-gradient(to right, black 0%, black calc(100% - 24px), transparent 100%);
    -webkit-mask-image: linear-gradient(to right, black 0%, black calc(100% - 24px), transparent 100%);
  }

  .site-header-nav::-webkit-scrollbar {
    display: none;
  }

  .site-header-nav a[data-nav="home"] {
    /* Brand already acts as home link on mobile */
    display: none;
  }

  .site-header-github {
    padding: 4px 8px;
  }

  .site-header-github-label {
    display: none;
  }
}

@media (max-width: 480px) {
  .site-header-brand-name {
    /* Logo alone on narrow screens */
    display: none;
  }
}