/* ================================================================
   BGS BASE — Container, Grid, Sections, Utilities, Animations
   ================================================================ */

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}
.container--narrow { max-width: 820px; }
.container--mid    { max-width: 1000px; }

/* ── Skip link ── */
.skip-link {
  position: absolute; left: -9999px; top: auto; width: 1px; height: 1px; overflow: hidden;
}
.skip-link:focus {
  position: fixed; left: var(--s-4); top: var(--s-4); width: auto; height: auto;
  padding: var(--s-3) var(--s-5); background: var(--color-primary); color: #fff;
  font-weight: var(--fw-semi); border-radius: var(--r-md); z-index: var(--z-toast);
  outline: 3px solid #fff; outline-offset: 2px;
}

/* ── Screen reader only ── */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ── Sections ── */
.section { padding-block: var(--section-py); }
.section--white   { background: var(--bg-page); }
.section--subtle  { background: var(--bg-muted); }
.section--silver  { background: var(--silver-100); }
.section--dark    { background: var(--bg-dark); }
.section--deeper  { background: var(--bg-deeper); }
.section--blue-gradient {
  background: linear-gradient(160deg, var(--blue-850) 0%, var(--blue-700) 100%);
}

/* ── Section headers ── */
.eyebrow {
  display: inline-block;
  font-size: var(--text-2xs);
  font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--s-4);
}
.eyebrow--light { color: var(--blue-300); }
.eyebrow--silver { color: var(--silver-300); }

.section-label { /* underlined accent bar above heading */
  display: flex; align-items: center; gap: var(--s-3); margin-bottom: var(--s-5);
}
.section-label::before {
  content: ''; display: block; width: 32px; height: 3px;
  background: var(--color-primary); border-radius: var(--r-full); flex-shrink: 0;
}
.section-label--light::before { background: var(--blue-300); }

.section-title {
  font-size: var(--text-h2);
  font-weight: var(--fw-black);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--s-5);
}
.section-desc {
  font-size: var(--text-body-lg);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

.section-header { margin-bottom: var(--s-10); }
.section-header--center { text-align: center; }
.section-header--center .section-desc { max-width: 600px; margin-inline: auto; }
.section-header--center .section-label { justify-content: center; }
.section-header--center .section-label::before { display: none; }
.section-header--center .eyebrow { display: block; }

/* ── Grid ── */
.grid { display: grid; gap: var(--s-6); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1023px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 767px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ── Split layout ── */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--s-8), 6vw, var(--s-12));
  align-items: center;
}
.split--60-40 { grid-template-columns: 1.5fr 1fr; }
.split--40-60 { grid-template-columns: 1fr 1.5fr; }

@media (max-width: 767px) {
  .split, .split--60-40, .split--40-60 { grid-template-columns: 1fr; }
}

/* ── Divider ── */
.divider {
  border: none; border-top: 1px solid var(--border-default); margin-block: 0;
}

/* ── Badge ── */
.badge {
  display: inline-flex; align-items: center; padding: 0.2rem 0.65rem;
  border-radius: var(--r-full); font-size: var(--text-2xs); font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-wide); text-transform: uppercase;
}
.badge--blue   { background: var(--blue-100); color: var(--blue-700); }
.badge--silver { background: var(--silver-200); color: var(--silver-700); }
.badge--white  { background: rgba(255,255,255,0.15); color: #fff; backdrop-filter: blur(4px); }

/* ── Pill tag ── */
.pill {
  display: inline-flex; align-items: center;
  background: var(--blue-50); color: var(--blue-700);
  padding: 0.3rem 0.875rem; border-radius: var(--r-full);
  font-size: var(--text-xs); font-weight: var(--fw-semi);
}

/* ── Page hero (inner pages) ── */
.page-hero {
  background: linear-gradient(155deg, var(--blue-950) 0%, var(--blue-800) 100%);
  padding-top: clamp(6rem, 10vw, 9rem);
  padding-bottom: clamp(var(--s-9), 6vw, var(--s-12));
  padding-inline: var(--container-pad);
  position: relative; overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80'%3E%3Ccircle cx='40' cy='40' r='1' fill='%23ffffff' fill-opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
}
.page-hero__inner {
  position: relative; z-index: 1;
  max-width: var(--container); margin-inline: auto;
}
.page-hero__eyebrow {
  font-size: var(--text-2xs); font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-widest); text-transform: uppercase;
  color: var(--blue-300); margin-bottom: var(--s-4);
}
.page-hero__title {
  font-size: var(--text-h1); font-weight: var(--fw-black);
  color: #fff; letter-spacing: var(--tracking-tight);
  margin-bottom: var(--s-5); line-height: 1.08;
}
.page-hero__desc {
  font-size: var(--text-body-lg); color: rgba(255,255,255,0.72);
  line-height: var(--leading-relaxed); max-width: 600px;
}

/* ── Breadcrumb ── */
.breadcrumb {
  display: flex; align-items: center; flex-wrap: wrap;
  gap: var(--s-2); margin-bottom: var(--s-6); list-style: none;
}
.breadcrumb__link {
  font-size: var(--text-xs); font-weight: var(--fw-medium);
  color: rgba(255,255,255,0.50); transition: color var(--dur-fast);
}
.breadcrumb__link:hover { color: rgba(255,255,255,0.85); }
.breadcrumb__sep {
  font-size: var(--text-xs); color: rgba(255,255,255,0.25);
  user-select: none;
}
.breadcrumb__current {
  font-size: var(--text-xs); font-weight: var(--fw-medium);
  color: rgba(255,255,255,0.80);
}

/* ── CTA Section ── */
.cta-block {
  background: linear-gradient(145deg, var(--blue-800) 0%, var(--blue-600) 100%);
  border-radius: var(--r-3xl);
  padding: clamp(var(--s-9), 8vw, 5.5rem) clamp(var(--s-7), 6vw, var(--s-12));
  text-align: center;
  position: relative; overflow: hidden;
}
.cta-block::before {
  content: ''; position: absolute;
  top: -60%; right: -5%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(160,180,255,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.cta-block::after {
  content: ''; position: absolute;
  bottom: -40%; left: -5%;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(100,140,255,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.cta-block__inner { position: relative; z-index: 1; }
.cta-block__title {
  font-size: var(--text-h2); font-weight: var(--fw-black);
  color: #fff; letter-spacing: var(--tracking-tight);
  margin-bottom: var(--s-5); line-height: 1.1;
}
.cta-block__desc {
  font-size: var(--text-body-lg); color: rgba(255,255,255,0.72);
  line-height: var(--leading-relaxed); max-width: 560px;
  margin-inline: auto; margin-bottom: var(--s-8);
}
.cta-block__actions {
  display: flex; flex-wrap: wrap; gap: var(--s-4); justify-content: center;
}
@media (max-width: 480px) {
  .cta-block { border-radius: var(--r-2xl); }
  .cta-block__actions { flex-direction: column; align-items: center; }
}

/* ── Reveal animations ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-xslow) var(--ease-out),
              transform var(--dur-xslow) var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: none; }
.reveal--delay-1 { transition-delay: 0.08s; }
.reveal--delay-2 { transition-delay: 0.16s; }
.reveal--delay-3 { transition-delay: 0.24s; }
.reveal--delay-4 { transition-delay: 0.32s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ── Stat row ── */
.stat-row {
  display: flex; flex-wrap: wrap; gap: 0;
  padding-top: var(--s-7);
  border-top: 1px solid rgba(255,255,255,0.12);
}
.stat-row__item {
  flex: 1; min-width: 120px;
  padding-right: var(--s-7);
  border-right: 1px solid rgba(255,255,255,0.12);
}
.stat-row__item:last-child { border-right: none; padding-right: 0; }
.stat-row__value {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: var(--fw-black); color: #fff; line-height: 1;
}
.stat-row__label {
  font-size: var(--text-2xs); font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-widest); text-transform: uppercase;
  color: rgba(255,255,255,0.50); margin-top: var(--s-2);
}
@media (max-width: 480px) {
  .stat-row { gap: var(--s-5); }
  .stat-row__item {
    flex: none; width: calc(50% - var(--s-3));
    border-right: none; padding-right: 0;
  }
}

/* ── Feature list items ── */
.feature-list { display: flex; flex-direction: column; gap: var(--s-4); }
.feature-item { display: flex; align-items: flex-start; gap: var(--s-4); }
.feature-item__icon {
  width: 44px; height: 44px; flex-shrink: 0;
  border-radius: var(--r-lg);
  background: var(--blue-50); color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  margin-top: 2px;
}
.feature-item__icon svg { width: 20px; height: 20px; }
.feature-item__title { font-weight: var(--fw-semi); margin-bottom: var(--s-1); }
.feature-item__desc { font-size: var(--text-sm); color: var(--text-secondary); line-height: var(--leading-relaxed); }

/* ── Image reveal cover ── */
.img-cover {
  width: 100%; height: 100%;
  object-fit: cover; display: block;
  transition: transform var(--dur-xslow) var(--ease-out);
}
.img-cover-wrap { overflow: hidden; border-radius: inherit; }
.img-cover-wrap:hover .img-cover { transform: scale(1.04); }