/* =====================================================================
   STACKVERSE — PUBLIC SITE STYLES
   ===================================================================== */

/* ---- Navigation ---- */
.navbar {
  position: sticky; top: 0; z-index: 900;
  background: rgba(252, 251, 248, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}
.navbar.scrolled { box-shadow: var(--shadow-sm); }
.navbar-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-4) 0;
}
.brand {
  display: flex; align-items: center; gap: var(--space-2);
  font-family: var(--font-display); font-weight: 700; font-size: 1.25rem;
}
.brand .brand-mark {
  width: 34px; height: 34px; border-radius: 10px;
  background: linear-gradient(135deg, var(--color-amber) 0%, var(--color-amber-dark) 100%);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-ink); font-weight: 800;
}
.nav-links { display: flex; align-items: center; gap: var(--space-6); list-style: none; padding: 0; margin: 0; }
.nav-links a { font-size: var(--fs-small); font-weight: 500; color: var(--color-ink-soft); transition: color var(--transition-base); position: relative; }
.nav-links a:hover, .nav-links a.active { color: var(--color-ink); }
.nav-links a.active::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -8px; height: 2px; background: var(--color-amber-dark);
}
.nav-actions { display: flex; align-items: center; gap: var(--space-3); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: var(--space-2); }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--color-ink); margin: 5px 0; transition: var(--transition-base); }

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed; top: 68px; left: 0; right: 0; bottom: 0;
    background: var(--color-bg); flex-direction: column; align-items: flex-start;
    padding: var(--space-6) var(--space-5); gap: var(--space-5);
    transform: translateX(100%); transition: transform var(--transition-base);
    overflow-y: auto;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { font-size: 1.1rem; }
}

/* ---- Hero ---- */
.hero {
  position: relative;
  padding: var(--space-9) 0 var(--space-8);
  overflow: hidden;
}
.hero-arc {
  position: absolute; top: -220px; right: -180px; width: 620px; height: 620px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, var(--color-amber) 0%, rgba(242,169,59,0.25) 45%, rgba(242,169,59,0) 70%);
  pointer-events: none;
  animation: hero-pulse 8s ease-in-out infinite;
}
@keyframes hero-pulse { 0%, 100% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.06); opacity: 0.85; } }

.hero-grid {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--space-8);
  align-items: center; position: relative; z-index: 2;
}
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } }

.hero-copy h1 { margin-bottom: var(--space-5); }
.hero-copy .lead { font-size: var(--fs-body-lg); max-width: 520px; }
.hero-cta { display: flex; gap: var(--space-4); margin-top: var(--space-6); flex-wrap: wrap; }
.hero-trust { display: flex; gap: var(--space-6); margin-top: var(--space-7); flex-wrap: wrap; }
.hero-trust .item { font-size: var(--fs-small); color: var(--color-ink-faint); }
.hero-trust .item strong { display: block; font-family: var(--font-display); font-size: 1.5rem; color: var(--color-ink); }

.hero-visual {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-lg); aspect-ratio: 4/3.4;
}
.hero-visual svg { width: 100%; height: 100%; display: block; }

/* ---- Feature / value grid ---- */
.feature-card { display: flex; flex-direction: column; gap: var(--space-4); }
.feature-icon {
  width: 52px; height: 52px; border-radius: var(--radius-md);
  background: var(--color-amber-tint); color: var(--color-amber-dark);
  display: flex; align-items: center; justify-content: center;
}
.feature-icon svg { width: 26px; height: 26px; }

/* ---- Stats ---- */
.stats-band {
  background: var(--color-deep); color: #fff; border-radius: var(--radius-lg);
  padding: var(--space-7); display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6);
}
@media (max-width: 900px) { .stats-band { grid-template-columns: repeat(2, 1fr); } }
.stat-item { text-align: center; }
.stat-item .num { font-family: var(--font-display); font-size: 2.5rem; font-weight: 700; color: var(--color-amber); }
.stat-item .label { font-size: var(--fs-small); color: rgba(255,255,255,0.75); margin-top: var(--space-1); }

/* ---- Process timeline ---- */
.timeline { position: relative; display: flex; flex-direction: column; gap: var(--space-7); }
.timeline::before {
  content: ''; position: absolute; left: 27px; top: 10px; bottom: 10px; width: 2px;
  background: var(--color-border-strong);
}
@media (max-width: 640px) { .timeline::before { left: 21px; } }
.timeline-step { display: flex; gap: var(--space-5); position: relative; }
.timeline-num {
  flex-shrink: 0; width: 56px; height: 56px; border-radius: 50%;
  background: var(--color-surface); border: 2px solid var(--color-amber);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; color: var(--color-amber-dark);
  z-index: 1;
}
@media (max-width: 640px) { .timeline-num { width: 44px; height: 44px; font-size: var(--fs-small); } }

/* ---- Testimonials ---- */
.testimonial-card { display: flex; flex-direction: column; gap: var(--space-4); }
.testimonial-quote { font-size: var(--fs-body-lg); font-family: var(--font-display); font-weight: 500; color: var(--color-ink); }
.testimonial-person { display: flex; align-items: center; gap: var(--space-3); }
.testimonial-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--color-amber-tint); color: var(--color-amber-dark);
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-family: var(--font-display);
}

/* ---- FAQ ---- */
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-question {
  width: 100%; text-align: left; background: none; border: none; cursor: pointer;
  padding: var(--space-5) 0; display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; color: var(--color-ink);
}
.faq-icon { transition: transform var(--transition-base); flex-shrink: 0; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height var(--transition-base); }
.faq-item.open .faq-answer { max-height: 400px; }
.faq-answer p { padding-bottom: var(--space-5); }

/* ---- CTA band ---- */
.cta-band {
  background: linear-gradient(135deg, var(--color-ink) 0%, var(--color-deep) 100%);
  color: #fff; border-radius: var(--radius-lg); padding: var(--space-8);
  text-align: center; position: relative; overflow: hidden;
}
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,0.75); }

/* ---- Footer ---- */
.site-footer { background: var(--color-surface-alt); border-top: 1px solid var(--color-border); padding: var(--space-8) 0 var(--space-5); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--space-6); }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-col h4 { font-size: var(--fs-small); text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-ink-faint); margin-bottom: var(--space-4); }
.footer-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: var(--space-3); }
.footer-col a { font-size: var(--fs-small); color: var(--color-ink-soft); }
.footer-col a:hover { color: var(--color-ink); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: var(--space-7); padding-top: var(--space-5); border-top: 1px solid var(--color-border);
  font-size: var(--fs-micro); color: var(--color-ink-faint); flex-wrap: wrap; gap: var(--space-3);
}
.social-links { display: flex; gap: var(--space-3); }
.social-links a {
  width: 36px; height: 36px; border-radius: 50%; background: var(--color-surface);
  border: 1px solid var(--color-border); display: flex; align-items: center; justify-content: center;
}
.social-links a:hover { background: var(--color-amber-tint); border-color: var(--color-amber); }

/* ---- Page header (for interior pages) ---- */
.page-header { padding: var(--space-8) 0 var(--space-7); text-align: center; }
.page-header p { max-width: 600px; margin-left: auto; margin-right: auto; font-size: var(--fs-body-lg); }

/* ---- Gallery ---- */
.gallery-item { border-radius: var(--radius-md); overflow: hidden; position: relative; aspect-ratio: 4/3; cursor: pointer; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 400ms ease; }
.gallery-item:hover img { transform: scale(1.06); }
.gallery-caption {
  position: absolute; bottom: 0; left: 0; right: 0; padding: var(--space-4);
  background: linear-gradient(to top, rgba(16,36,46,0.85), transparent);
  color: #fff; font-size: var(--fs-small); font-weight: 600;
}

/* ---- Pricing / product tiers ---- */
.tier-card { position: relative; }
.tier-card.featured { border: 2px solid var(--color-amber); box-shadow: var(--shadow-amber-glow); }
.tier-tag {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--color-amber); color: var(--color-ink); font-size: var(--fs-micro); font-weight: 700;
  padding: 0.3rem 1rem; border-radius: var(--radius-pill);
}
.tier-price { font-family: var(--font-display); font-size: 2.25rem; font-weight: 700; margin: var(--space-3) 0; }
.tier-price span { font-size: var(--fs-small); font-weight: 500; color: var(--color-ink-faint); }
.tier-features { list-style: none; padding: 0; margin: var(--space-5) 0; display: flex; flex-direction: column; gap: var(--space-3); }
.tier-features li { display: flex; align-items: center; gap: var(--space-2); font-size: var(--fs-small); }

/* ---- Contact page ---- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-7); align-items: start; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-info-item { display: flex; gap: var(--space-4); margin-bottom: var(--space-5); }
.contact-info-icon {
  width: 44px; height: 44px; border-radius: var(--radius-sm); flex-shrink: 0;
  background: var(--color-amber-tint); color: var(--color-amber-dark);
  display: flex; align-items: center; justify-content: center;
}
.map-embed { border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--color-border); height: 260px; }