/* ============================================================
   iKardia — Layout & Utilities
   ============================================================ */

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

/* ── Sections ── */
.section {
  padding-top: var(--section-pad-y);
  padding-bottom: var(--section-pad-y);
  padding-left: 20px;
}

.section--dark   { background: var(--color-navy-dark); }
.section--navy   { background: var(--color-navy); }
.section--navy-mid { background: var(--color-navy-mid); }
.section--light  { background: var(--color-gray-100); }
.section--white  { background: var(--color-white); }

/* ── Section Header ── */
.section-label {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--color-teal);
  margin-bottom: 14px;
  display: block;
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-navy);
  margin-bottom: 18px;
}

.section-title--white { color: var(--color-white); }

.section-desc {
  font-size: var(--text-md);
  line-height: 1.8;
  color: var(--color-gray-500);
  max-width: 600px;
}

.section-desc--white { color: rgba(255, 255, 255, 0.6); }

.section-header {
  margin-bottom: 56px;
}

.section-header--center {
  text-align: center;
}

.section-header--center .section-desc {
  margin-left: auto;
  margin-right: auto;
}

/* ── Grid Helpers ── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-xl); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-md); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-sm); }

/* ── Flex Helpers ── */
.flex        { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between{ display: flex; align-items: center; justify-content: space-between; }
.gap-sm  { gap: var(--space-sm); }
.gap-md  { gap: var(--space-md); }
.gap-lg  { gap: var(--space-lg); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 32px;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  cursor: pointer;
  text-decoration: none;
  border: 1.5px solid transparent;
}

.btn-primary {
  background: var(--color-teal);
  color: var(--color-navy);
  border-color: var(--color-teal);
}
.btn-primary:hover {
  background: var(--color-teal-dark);
  border-color: var(--color-teal-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-teal);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.3);
}
.btn-outline:hover {
  border-color: var(--color-teal);
  color: var(--color-teal);
}

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

/* ── Badges / Tags ── */
.badge {
  display: inline-block;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.badge-teal {
  background: rgba(61, 217, 179, 0.15);
  color: var(--color-teal);
}

.badge-navy {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
}

/* ── Divider ── */
.divider {
  width: 100%;
  height: 1px;
  background: var(--color-gray-300);
}

.divider--light { background: rgba(255, 255, 255, 0.08); }
.divider--teal  { background: var(--color-teal); height: 3px; }

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive Breakpoints ── */
@media (max-width: 1100px) {
  :root {
    --section-pad-x: 48px;
  }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root {
    --section-pad-x: 24px;
    --section-pad-y: 72px;
    --text-3xl: 32px;
    --text-2xl: 26px;
  }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
}