/* ==========================================================================
   Layout — Container, Grid, Flex, Section utilities
   ========================================================================== */

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

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

/* Sections */
.section {
  padding: var(--space-20) 0;
  position: relative;
  overflow: hidden;
}

.section--alt {
  background-color: var(--bg-secondary);
}

.section--dark {
  background-color: var(--surface-900);
  color: #ffffff;
}

.section--dark .text-lead,
.section--dark p {
  color: var(--surface-300);
}

/* Section header pattern — centered heading + lead text */
.section__header {
  text-align: center;
  max-width: var(--container-narrow);
  margin-inline: auto;
  margin-bottom: var(--space-16);
}

.section__header h2 {
  margin-bottom: var(--space-4);
}

.section__header p {
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  line-height: 1.7;
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-2 {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
}

.grid-3 {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
}

.grid-4 {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
}

/* Flex Utilities */
.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-col {
  display: flex;
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

.items-center { align-items: center; }
.items-start { align-items: flex-start; }

/* Two-column hero layout — text left, illustration right */
.hero__layout {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  min-height: calc(100vh - var(--nav-height));
  padding-top: var(--nav-height);
}

.hero__content {
  flex: 1;
  min-width: 0;
}

.hero__visual {
  flex: 1;
  min-width: 0;
  display: flex;
  justify-content: center;
}

@media (max-width: 768px) {
  .hero__layout {
    flex-direction: column;
    text-align: center;
    gap: var(--space-8);
    min-height: auto;
    padding-top: calc(var(--nav-height) + var(--space-8));
    padding-bottom: var(--space-8);
  }

  .hero__visual {
    max-width: 400px;
    margin-inline: auto;
  }
}

/* Alternating feature rows — image/text swap sides */
.feature-row {
  display: flex;
  align-items: center;
  gap: var(--space-12);
}

.feature-row--reverse {
  flex-direction: row-reverse;
}

.feature-row__content {
  flex: 1;
  min-width: 0;
}

.feature-row__visual {
  flex: 1;
  min-width: 0;
  display: flex;
  justify-content: center;
}

@media (max-width: 768px) {
  .feature-row,
  .feature-row--reverse {
    flex-direction: column;
    gap: var(--space-8);
  }
}

/* Horizontal steps layout (how-it-works) */
.steps {
  display: flex;
  gap: var(--space-8);
  align-items: flex-start;
}

.step {
  flex: 1;
  text-align: center;
}

.step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-full);
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: var(--space-4);
}

.step__connector {
  flex-shrink: 0;
  width: 4rem;
  height: 2px;
  background: var(--border-color);
  margin-top: 1.5rem;
}

@media (max-width: 768px) {
  .steps {
    flex-direction: column;
    align-items: center;
  }

  .step__connector {
    width: 2px;
    height: 2rem;
    margin-top: 0;
  }
}

/* Spacing utilities */
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mt-16 { margin-top: var(--space-16); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

/* Width utilities */
.w-full { width: 100%; }
.max-w-narrow { max-width: var(--container-narrow); }
.mx-auto { margin-inline: auto; }