/* ── Layout System ── */

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container-narrow {
  width: 100%;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container-wide {
  width: 100%;
  max-width: 1440px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* Sections */
.section {
  padding-top: var(--sp-24);
  padding-bottom: var(--sp-24);
}

.section-sm {
  padding-top: var(--sp-16);
  padding-bottom: var(--sp-16);
}

.section-lg {
  padding-top: var(--sp-32);
  padding-bottom: var(--sp-32);
}

/* Section Header */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto var(--sp-16) auto;
}

.section-header .eyebrow {
  margin-bottom: var(--sp-3);
}

.section-header h2 {
  font-size: clamp(1.75rem, 3vw, var(--text-4xl));
  font-weight: var(--fw-bold);
  letter-spacing: -0.02em;
  color: var(--text-dark);
  margin-bottom: var(--sp-4);
}

.section-header p {
  font-size: var(--text-lg);
  color: var(--text-medium);
  line-height: var(--lh-relaxed);
}

/* Grid Systems */
.grid {
  display: grid;
  gap: var(--sp-8);
}

.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: 768px) {
    .grid-3 {
        grid-template-columns: 1fr;
    }
}

.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--sp-8);
}

.grid-auto-sm {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--sp-6);
}

/* Flex Utilities */
.flex           { display: flex; }
.flex-col       { flex-direction: column; }
.items-center   { align-items: center; }
.items-start    { align-items: flex-start; }
.items-end      { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between{ justify-content: space-between; }
.justify-start  { justify-content: flex-start; }
.flex-wrap      { flex-wrap: wrap; }
.gap-2  { gap: var(--sp-2); }
.gap-3  { gap: var(--sp-3); }
.gap-4  { gap: var(--sp-4); }
.gap-6  { gap: var(--sp-6); }
.gap-8  { gap: var(--sp-8); }

/* Background Variants */
.bg-white  { background-color: var(--bg-white); }
.bg-light  { background-color: var(--bg-light); }
.bg-subtle { background-color: var(--bg-subtle); }
.bg-primary { background: var(--gradient-primary); }
.bg-dark   { background-color: var(--color-primary); }

/* Spacing Utilities */
.mt-auto { margin-top: auto; }
.mb-0    { margin-bottom: 0; }
.mt-4    { margin-top: var(--sp-4); }
.mt-6    { margin-top: var(--sp-6); }
.mt-8    { margin-top: var(--sp-8); }
.mb-4    { margin-bottom: var(--sp-4); }
.mb-6    { margin-bottom: var(--sp-6); }
.mb-8    { margin-bottom: var(--sp-8); }
.mb-12   { margin-bottom: var(--sp-12); }

/* Divider */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--bg-subtle), transparent);
  border: none;
  margin: var(--sp-24) 0;
}

/* Two-column with image */
.split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-16);
  align-items: center;
}

.split-layout.reverse .split-content {
  order: 2;
}
.split-layout.reverse .split-visual {
  order: 1;
}

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