/* ─── Layout ─────────────────────────────────────────────── */

#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.45;
}

#main-content {
  position: relative;
  z-index: 1;
}

.container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 64px);
}

.container--wide {
  max-width: 1600px;
}

.container--narrow {
  max-width: 900px;
}


.section {
  padding: var(--sp-24) 0;
}

/* Grid system */
.grid {
  display: grid;
  gap: var(--sp-6);
}
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }

/* Section header */
.section-header {
  text-align: center;
  margin-bottom: var(--sp-16);
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-cyan);
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.2);
  padding: var(--sp-1) var(--sp-4);
  border-radius: var(--r-full);
  margin-bottom: var(--sp-5);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.15;
}

/* Responsive breakpoints */
@media (max-width: 900px) {
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .grid--3, .grid--2 { grid-template-columns: 1fr; }
  .container { padding: 0 var(--sp-4); }
  .section { padding: var(--sp-16) 0; }
}