/*
 * SUAR SERVICES — Motion System
 * Phase 3 Visual Polish
 * Rules: short durations, smooth easing, prefers-reduced-motion respected
 *
 * ARCHITECTURE: Content is visible by default.
 * JS starts a finite entrance only after an element enters the viewport.
 * No waiting/observer state hides content. Failed JS/observers stay readable.
 */

/* Entrances move content without hiding it. In particular, browsers may defer
 * offscreen animation sampling: opacity must never depend on that timeline.
 * No forwards fill overrides card hover transforms after the entrance ends. */
@keyframes suar-reveal {
  from { transform: translateY(var(--reveal-y, 18px)); }
  to { transform: translateY(0); }
}
.js-motion .suar-animate.in-view {
  animation: suar-reveal 0.45s ease backwards;
}

/* Every child participates, including grids with more than six cards. */
.js-motion .suar-stagger.in-view > * {
  --reveal-y: 14px;
  animation: suar-reveal 0.4s ease 0.35s backwards;
}
.js-motion .suar-stagger.in-view > *:nth-child(1) { animation-delay: 0s; }
.js-motion .suar-stagger.in-view > *:nth-child(2) { animation-delay: 0.07s; }
.js-motion .suar-stagger.in-view > *:nth-child(3) { animation-delay: 0.14s; }
.js-motion .suar-stagger.in-view > *:nth-child(4) { animation-delay: 0.21s; }
.js-motion .suar-stagger.in-view > *:nth-child(5) { animation-delay: 0.28s; }

/* ── Hero entrance sequence — GATED behind .js-motion ── */
.js-motion .suar-hero-item.in-view {
  --reveal-y: var(--hero-reveal-y, 12px);
  animation: suar-reveal 0.46s ease var(--hero-reveal-delay, 0s) backwards;
}
/* Focusing a link never waits for a decorative entrance to finish. */
.js-motion .suar-animate:focus-within,
.js-motion .suar-stagger > *:focus-within,
.js-motion .suar-hero-item:focus-within {
  animation-duration: 0s;
  animation-delay: 0s;
}

/* ── Card hover lift ── */
.cap-card,
.blog-card,
.service-pillar-card,
.diff-card,
.model-card,
.journey-card,
.tech-group,
.cert-group,
.cred-group {
  transition:
    border-color 0.22s ease,
    background 0.22s ease,
    transform 0.22s ease,
    box-shadow 0.22s ease;
}
.cap-card:hover,
.blog-card:hover,
.service-pillar-card:hover,
.diff-card:hover,
.model-card:hover,
.journey-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-line);
  box-shadow:
    0 12px 30px var(--shadow-deep),
    0 0 0 1px var(--accent-wash-medium);
}
.cap-card-icon,
.pillar-icon,
.munich-badge {
  transition:
    background 0.22s ease,
    border-color 0.22s ease,
    transform 0.22s ease;
}
.cap-card-icon .suar-icon,
.service-pillar-card .suar-icon,
.munich-badge .suar-icon {
  transition: transform 0.22s ease, stroke 0.22s ease;
  transform-origin: center;
}
.cap-card:hover .cap-card-icon,
.service-pillar-card:hover .pillar-icon {
  background: var(--accent-wash-strong);
}
.cap-card:hover .suar-icon,
.service-pillar-card:hover .suar-icon {
  transform: translateY(-1px) scale(1.04);
}

/* ── Primary button pulse on hover ── */
.btn-primary,
.btn--primary,
.btn--outline,
.btn-outline,
.btn-secondary {
  transition:
    background 0.2s ease,
    border-color 0.2s ease,
    color 0.2s ease,
    transform 0.15s ease,
    box-shadow 0.2s ease;
}
.btn-primary:hover,
.btn--primary:hover,
.btn--outline:hover,
.btn-outline:hover,
.btn-secondary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--accent-line-soft);
}
.btn-primary:active,
.btn--primary:active,
.btn--outline:active,
.btn-outline:active,
.btn-secondary:active {
  transform: translateY(0);
}

/* ── CTA link arrow micro-motion ── */
.cap-card-link,
.pillar-cta-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}
.cap-card-link::after,
.pillar-cta-link::after {
  content: '→';
  display: inline-block;
  transition: transform 0.18s ease;
}

[dir="rtl"] .cap-card-link::after,
[dir="rtl"] .pillar-cta-link::after { content: '←'; }
.cap-card-link:hover::after,
.pillar-cta-link:hover::after {
  transform: translateX(4px);
}
[dir="rtl"] .cap-card-link:hover::after,
[dir="rtl"] .pillar-cta-link:hover::after {
  transform: translateX(-4px);
}

/* ── Chip tag hover ── */
.chip-tag {
  transition: border-color 0.18s ease, color 0.18s ease, background 0.18s ease;
}
.chip-tag:hover {
  border-color: var(--accent-line);
  color: var(--text-primary);
  background: var(--accent-wash-medium);
}

/* ── Lifecycle step hover ── */
.lifecycle-step {
  transition: background 0.18s ease, border-color 0.18s ease, transform 0.15s ease;
}
.lifecycle-step:hover {
  background: var(--accent-wash-strong);
  border-color: var(--accent-line);
  transform: translateY(-1px);
}

/* ── Footer link hover ── */
.footer-col a {
  transition: color 0.18s ease, transform 0.12s ease;
}
.footer-col a:hover {
  transform: translateX(2px);
}
[dir="rtl"] .footer-col a:hover {
  transform: translateX(-2px);
}

/* ── Prefers-reduced-motion override ── */
@media (prefers-reduced-motion: reduce) {
  .js-motion .suar-animate.in-view,
  .js-motion .suar-stagger.in-view > *,
  .js-motion .suar-hero-item.in-view {
    animation: none;
  }
  .cap-card:hover,
  .blog-card:hover,
  .service-pillar-card:hover,
  .diff-card:hover,
  .model-card:hover,
  .journey-card:hover,
  .cap-card:hover .suar-icon,
  .service-pillar-card:hover .suar-icon {
    transform: none !important;
  }
  .btn-primary:hover,
.btn--primary:hover,
.btn--outline:hover,
.btn-outline:hover,
.btn-secondary:hover {
    transform: none !important;
  }

  .lifecycle-step:hover,
.footer-col a:hover,
.cap-card-link::after,
.pillar-cta-link::after {
    transform: none !important;
    transition: none !important;
  }
}

/* Vendor chip-tags as external links — preserve chip appearance */
a.chip-tag {
  text-decoration: none;
  cursor: pointer;
}
a.chip-tag:focus-visible {
  outline: 2px solid var(--accent-line);
  outline-offset: 2px;
}

/* ═══════════════════════════════════════════════════════════
   Technical Articles archive — /blog/
   ═══════════════════════════════════════════════════════════ */

/* Archive page header */
.blog-archive-header {
  padding-block: 3rem 2.5rem;
  border-block-end: 1px solid var(--separator-soft);
  margin-block-end: 3rem;
}

.blog-archive-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-block-end: 0.75rem;
  color: var(--text-primary);
}

.blog-archive-lead {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 60ch;
  line-height: 1.65;
}

/* Card grid */
.blog-archive-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
  gap: 1.75rem;
  margin-block-end: 3rem;
}

/* Individual article card */
.blog-archive-card {
  background: var(--surface-wash-soft);
  border: 1px solid var(--separator-soft);
  border-radius: 0.75rem;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.blog-archive-cat {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--accent-line-soft);
  border-radius: 3rem;
  margin-block-end: 0.25rem;
}

.blog-archive-card-title {
  font-size: var(--type-h3);
  font-weight: 600;
  line-height: 1.4;
  margin: 0;
}

.blog-archive-card-title a {
  color: inherit;
  text-decoration: none;
}

.blog-archive-card-title a:hover {
  color: var(--accent);
}

.blog-archive-date {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin: 0;
}

.blog-archive-excerpt {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
  flex: 1;
}

.blog-archive-read-link {
  display: inline-block;
  margin-block-start: 0.75rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.01em;
}

.blog-archive-read-link:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Pagination */
.blog-archive-pagination {
  padding-block: 2rem;
  text-align: center;
}

.blog-archive-pagination .nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

.blog-archive-pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.25rem;
  height: 2.25rem;
  padding-inline: 0.75rem;
  border-radius: 0.375rem;
  background: var(--surface-wash-soft);
  border: 1px solid var(--separator-soft);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  transition: border-color 0.18s, background 0.18s, color 0.18s;
}

.blog-archive-pagination .page-numbers:hover,
.blog-archive-pagination .page-numbers.current {
  background: var(--accent-wash-medium);
  border-color: var(--accent-line-soft);
  color: var(--accent);
}

.blog-archive-empty {
  padding-block: 3rem;
  color: var(--text-secondary);
}

/* RTL adjustments */
[dir="rtl"] .blog-archive-lead {
  max-width: 60ch;
}