/* =============================================================
   COMPONENTS.CSS — Sally Mills Consulting
   Shared components: buttons, nav, footer, cards, badges
   ============================================================= */

/* ──────────────────────────────────────────
   BUTTONS
   ────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font);
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  transition:
    background-color var(--duration) var(--ease),
    color var(--duration) var(--ease),
    border-color var(--duration) var(--ease);
}

.btn:focus-visible {
  outline: 3px solid var(--c-primary);
  outline-offset: 3px;
}

.btn-primary {
  background-color: var(--c-primary);
  color: var(--c-on-dark);
}

.btn-primary:hover {
  background-color: var(--c-tertiary);
  color: var(--c-on-dark);
}

.btn-secondary {
  background-color: transparent;
  color: var(--c-navy);
  border: 1.5px solid var(--c-navy);
}

.btn-secondary:hover {
  background-color: var(--c-navy);
  color: var(--c-on-dark);
}

/* Arrow text link */
.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--c-primary);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: gap var(--duration) var(--ease);
}

.arrow-link::after {
  content: '→';
}

.arrow-link:hover {
  gap: 8px;
}

.arrow-link:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ──────────────────────────────────────────
   NAVIGATION
   ────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--c-surface);
}

.site-header::after {
  content: '';
  display: block;
  height: 5px;
  background: linear-gradient(to right, var(--c-navy), var(--c-tertiary), var(--c-secondary));
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 90px;
  gap: var(--sp-4);
}

.nav-logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.nav-logo img {
  height: 90px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--c-body);
  transition: color var(--duration) var(--ease);
  position: relative;
}

.nav-links a:hover {
  color: var(--c-navy);
}

.nav-links a:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 3px;
  border-radius: 2px;
}

.nav-links a[aria-current="page"],
.page-services  .nav-links a[href="/services/"],
.page-about     .nav-links a[href="/about-and-speaking/"],
.page-articles  .nav-links a[href="/articles/"],
.page-examples  .nav-links a[href="/technical-seo-examples/"],
.page-contact   .nav-links a[href="/contact/"] {
  font-weight: 700;
  color: var(--c-navy);
}

.nav-links a[aria-current="page"]::after,
.page-services  .nav-links a[href="/services/"]::after,
.page-about     .nav-links a[href="/about-and-speaking/"]::after,
.page-articles  .nav-links a[href="/articles/"]::after,
.page-examples  .nav-links a[href="/technical-seo-examples/"]::after,
.page-contact   .nav-links a[href="/contact/"]::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--c-primary);
  border-radius: 1px;
}

.nav-cta {
  font-size: 14px;
  padding: 10px 20px;
  flex-shrink: 0;
}

/* Hamburger toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 8px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  transition: background-color var(--duration) var(--ease);
}

.nav-toggle:hover {
  background-color: var(--c-ground);
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 2px;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--c-navy);
  border-radius: 1px;
  transition:
    transform var(--duration) var(--ease),
    opacity var(--duration) var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 767px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background-color: var(--c-surface);
    border-bottom: 1px solid var(--c-border);
    padding: var(--sp-2) 0;
    box-shadow: 0 8px 24px rgba(10, 22, 40, 0.08);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links a {
    padding: 12px var(--gutter);
    font-size: 15px;
  }

  .nav-links a[aria-current="page"]::after {
    display: none;
  }

  .nav-cta {
    display: none;
  }
}

/* ──────────────────────────────────────────
   ARTICLE CARDS
   ────────────────────────────────────────── */
.article-card {
  background-color: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  text-decoration: none;
  color: inherit;
  transition:
    border-color var(--duration) var(--ease),
    box-shadow var(--duration) var(--ease);
}

.article-card:hover {
  border-color: var(--c-primary);
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.08);
}

.article-card:focus-visible {
  outline: 3px solid var(--c-primary);
  outline-offset: 3px;
}

.article-tag {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-primary);
}

.article-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--c-navy);
  line-height: 1.45;
  margin-top: 4px;
}

.article-excerpt {
  font-size: 13px;
  color: var(--c-body);
  line-height: 1.65;
  flex: 1;
}

.article-date {
  font-size: 12px;
  color: var(--c-muted);
  margin-top: 4px;
}

/* ──────────────────────────────────────────
   BADGES
   ────────────────────────────────────────── */
.badge {
  display: inline-flex;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.badge-upcoming {
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--c-primary);
  border: 1px solid rgba(59, 130, 246, 0.25);
}

.badge-ongoing {
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--c-primary);
  border: 1px solid rgba(59, 130, 246, 0.25);
}

.badge-past {
  background-color: var(--c-ground);
  color: var(--c-muted);
  border: 1px solid var(--c-border);
}

/* ──────────────────────────────────────────
   FOOTER
   ────────────────────────────────────────── */
.site-footer {
  background-color: var(--c-navy-deep);
  padding: var(--sp-8) 0 var(--sp-4);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2.5fr 1fr 1fr;
  gap: var(--sp-6);
  padding-bottom: var(--sp-6);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: var(--sp-3);
}

.footer-brand img {
  height: 60px;
  width: auto;
  margin-bottom: var(--sp-2);
}

.footer-legal {
  font-size: 12px;
  color: var(--c-on-dark-faint);
  line-height: 1.6;
  margin-bottom: var(--sp-3);
}

.footer-tagline {
  font-size: 13px;
  color: var(--c-on-dark-faint);
  line-height: 1.55;
  margin-bottom: var(--sp-3);
}

.footer-social {
  display: flex;
  gap: var(--sp-3);
  flex-wrap: wrap;
}

.footer-social a {
  font-size: 13px;
  font-weight: 500;
  color: rgba(232, 237, 245, 0.5);
  transition: color var(--duration) var(--ease);
}

.footer-social a:hover {
  color: var(--c-on-dark);
}

.footer-social a:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 3px;
  border-radius: 2px;
}

.footer-col h4 {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(232, 237, 245, 0.25);
  margin-bottom: var(--sp-2);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(232, 237, 245, 0.5);
  transition: color var(--duration) var(--ease);
}

.footer-links a:hover {
  color: var(--c-on-dark);
}

.footer-links a:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 3px;
  border-radius: 2px;
}

.footer-base {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: rgba(232, 237, 245, 0.25);
  flex-wrap: wrap;
  gap: var(--sp-2);
}

.footer-base a {
  color: rgba(96, 165, 250, 0.5);
  transition: color var(--duration) var(--ease);
}

.footer-base a:hover {
  color: var(--c-secondary);
}

@media (max-width: 767px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--sp-6);
  }
}