/* ==========================================================================
   Calyon Facility Services — Base Styles
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--step-base);
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--surface-light);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 var(--space-sm);
  color: var(--calyon-navy);
  letter-spacing: -0.01em;
}
h1 { font-size: var(--step-2xl); }
h2 { font-size: var(--step-xl); }
h3 { font-size: var(--step-md); }
p { margin: 0 0 var(--space-sm); color: var(--text-secondary); max-width: 66ch; }
a { color: var(--calyon-navy); }

.container {
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--space-md);
}
@media (min-width: 768px) {
  .container { padding-inline: var(--space-lg); }
}

.section { padding-block: var(--space-2xl); }
.section--tight { padding-block: var(--space-xl); }
.section--tint { background: var(--surface-tint); }
.section--dark { background: var(--surface-dark); color: var(--text-inverse); }
.section--dark h2, .section--dark h3 { color: var(--white); }
.section--dark p { color: #C9D3E8; }

.section-header { max-width: var(--content-narrow); margin-bottom: var(--space-lg); }
.section-header p { font-size: var(--step-md); }

.narrow { max-width: var(--content-narrow); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--step-sm);
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-standard),
              color var(--duration-fast) var(--ease-standard),
              border-color var(--duration-fast) var(--ease-standard),
              transform var(--duration-fast) var(--ease-standard);
}
.btn:active { transform: translateY(1px); }

.btn--primary { background: var(--calyon-navy); color: var(--white); }
.btn--primary:hover { background: var(--calyon-navy-dark); }

.btn--gold { background: var(--calyon-gold); color: var(--calyon-navy); }
.btn--gold:hover { background: var(--calyon-gold-dark); }

.btn--outline { background: transparent; color: var(--calyon-navy); border-color: var(--calyon-navy); }
.btn--outline:hover { background: var(--calyon-navy); color: var(--white); }

.btn--outline-light { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.6); }
.btn--outline-light:hover { background: var(--white); color: var(--calyon-navy); }

.btn--sm { padding: 0.6rem 1.1rem; font-size: var(--step-xs); white-space: nowrap; min-height: 44px; }

/* Trust strip */
.trust-line {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--step-sm);
  color: var(--calyon-navy);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.9rem;
}
.trust-line span:not(:last-child)::after {
  content: '';
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--calyon-gold);
  margin-left: 0.9rem;
  vertical-align: middle;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(270px, 100%), 1fr));
  gap: var(--space-md);
}
/* Fixed-column variants: use when item count is known, to avoid an
   uneven/orphaned last row that auto-fit can produce. */
.card-grid--3col { grid-template-columns: repeat(3, 1fr); }
.card-grid--2col { grid-template-columns: repeat(2, 1fr); }
.card-grid--4col { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 860px) {
  .card-grid--3col { grid-template-columns: 1fr; }
  .card-grid--4col { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .card-grid--2col, .card-grid--4col { grid-template-columns: 1fr; }
}
.card {
  background: var(--white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--duration-base) var(--ease-standard),
              transform var(--duration-base) var(--ease-standard);
  text-decoration: none;
  display: flex;
  flex-direction: column;
}
.card:hover { box-shadow: 0 12px 32px -16px rgba(18,58,140,0.28); transform: translateY(-3px); }
.card__image { aspect-ratio: 4/3; overflow: hidden; }
.card__image img { width: 100%; height: 100%; object-fit: cover; transition: transform 600ms var(--ease-standard); }
.card:hover .card__image img { transform: scale(1.04); }
.card__body { padding: var(--space-md); flex: 1; display: flex; flex-direction: column; }
.card__body h3 { margin-bottom: 0.4rem; font-size: var(--step-base); }
.card__body p { font-size: var(--step-sm); margin-bottom: var(--space-sm); }
.card__link { margin-top: auto; font-weight: 600; font-size: var(--step-sm); color: var(--calyon-navy); }

/* Process steps — always 6 stages, fixed 3-column grid to avoid orphan rows */
.process {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  counter-reset: step;
}
@media (max-width: 860px) {
  .process { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .process { grid-template-columns: 1fr; }
}
.process__step {
  border-top: 3px solid var(--calyon-gold);
  padding-top: var(--space-sm);
}
.process__num {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--calyon-navy);
  font-size: var(--step-md);
  display: block;
  margin-bottom: 0.3rem;
}

/* Reveal-on-scroll */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--duration-base) var(--ease-standard),
              transform var(--duration-base) var(--ease-standard);
}
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}

/* Visually hidden (a11y) */
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--calyon-navy);
  color: var(--white);
  padding: 0.75rem 1.25rem;
  z-index: 1000;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 3px solid var(--calyon-gold);
  outline-offset: 2px;
}