/* ============================================
   Layout, Containers & Utilities
   ============================================ */

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

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

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

/* --- SECTIONS --- */
.section {
  padding-block: var(--space-section);
}

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

/* --- GRID --- */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: repeat(2, 1fr); }

@media (min-width: 768px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

/* --- FLEX --- */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

/* --- TEXT --- */
.text-center { text-align: center; }
.text-secondary { color: var(--color-text-secondary); }
.text-accent { color: var(--color-accent); }
.font-accent {
  font-family: var(--font-accent);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.875rem 2rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast),
              transform var(--transition-fast),
              box-shadow var(--transition-fast),
              color var(--transition-fast),
              border-color var(--transition-fast);
  cursor: pointer;
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.btn--primary:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-card);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

.btn--secondary:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.btn--small {
  padding: 0.625rem 1.25rem;
  font-size: var(--text-xs);
}

/* --- SEPARATOR --- */
.separator {
  width: 60px;
  height: 2px;
  background-color: var(--color-detail);
  border: none;
  margin-block: var(--space-lg);
}

.separator--center {
  margin-inline: auto;
}

/* --- SCROLL REVEAL --- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--transition-reveal),
              transform var(--transition-reveal);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- SECTION TITLE --- */
.section__title {
  font-size: var(--text-2xl);
  margin-bottom: 0;
}

/* --- SR-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-width: 0;
}