/* ─────────────────────────────────────────
   RESPONSIVE
   Breakpoints: 1024px → 768px → 480px
───────────────────────────────────────── */

/* ── Wide screens: max-width containment ── */
/* All sections already use .section-inner with max-width.
   Hero uses .hero-inner. Stats uses .stats-outer + .stats.
   No extra rules needed above 1280px. */

/* ── Tablet: ≤ 1024px ── */
@media (max-width: 1024px) {

  :root {
    --section-pad-x: 32px;
  }

  /* Hero: stack to single column */
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
    padding-top: 64px;
  }

  .hero-panel {
    max-width: 520px;
  }

  /* Stats: 2×2 grid */
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(3) { border-top: 1px solid var(--border); }
  .stat:nth-child(4) { border-top: 1px solid var(--border); border-right: none; }

  /* Process: 2×2 grid */
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Case studies: single column */
  .cs-placeholder {
    grid-template-columns: 1fr;
  }
}

/* ── Mobile: ≤ 768px ── */
@media (max-width: 768px) {

  :root {
    --section-pad-x: 20px;
    --section-pad-y: 56px;
  }

  /* ── Nav ── */
  .nav {
    padding: 0 20px;
    flex-wrap: wrap;
    height: auto;
    min-height: var(--nav-height);
    align-items: center;
  }

  .nav-links {
    display: none;
    order: 3;
    width: 100%;
    flex-direction: column;
    gap: 0;
    border-top: 1px solid var(--border);
    padding: 8px 0 12px;
    background: var(--bg);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    padding: 13px 0;
    font-size: var(--text-base);
    border-bottom: 1px solid var(--border);
    letter-spacing: 0.08em;
  }

  .nav-links a::after {
    display: none;
  }

  .nav-cta {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  /* ── Ticker ── */
  .ticker-item {
    padding: 0 24px;
  }

  /* ── Hero ── */
  .hero-inner {
    padding: 48px 20px 40px;
    gap: 40px;
  }

  .hero-h1 {
    font-size: clamp(36px, 10vw, 52px);
    margin-bottom: 24px;
  }

  .hero-sub {
    font-size: var(--text-base);
    margin-bottom: 36px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .btn-primary {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  .btn-ghost {
    justify-content: center;
  }

  .hero-panel {
    max-width: 100%;
  }

  /* ── Stats ── */
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat {
    padding: 24px 20px;
  }

  .stat-n {
    font-size: 36px;
  }

  /* ── Sections ── */
  .section {
    padding: var(--section-pad-y) var(--section-pad-x);
  }

  .section-h {
    font-size: clamp(26px, 6vw, 36px);
    max-width: 100%;
  }

  /* ── Problem / Solution ── */
  .ps-table {
    grid-template-columns: 1fr;
    margin-top: 40px;
  }

  .ps-header:first-child {
    border-right: none;
  }

  .ps-header:last-child {
    display: none;
  }

  .ps-cell {
    padding: 14px 20px;
  }

  .ps-cell.left {
    border-right: none;
    border-bottom: none;
    padding-bottom: 4px;
    color: var(--muted);
    font-size: var(--text-sm);
  }

  .ps-cell.right {
    border-bottom: 1px solid var(--border);
    padding-top: 4px;
  }

  .ps-cell.right:last-child {
    border-bottom: none;
  }

  /* ── Services ── */
  .services-grid {
    grid-template-columns: 1fr;
    margin-top: 40px;
  }

  .service-card {
    padding: 28px 20px;
  }

  /* ── Process ── */
  .process-steps {
    grid-template-columns: 1fr;
    margin-top: 40px;
  }

  .step-n {
    font-size: 40px;
    margin-bottom: 12px;
  }

  .tech-inner {
    grid-template-columns: 1fr;
  }

  /* ── FAQ ── */
  .faq {
    margin-top: 40px;
  }

  .faq-q {
    padding: 18px 20px;
    font-size: var(--text-base);
    letter-spacing: -0.005em;
  }

  .faq-a:not([hidden]) {
    padding: 0 20px 18px;
  }

  /* ── CTA ── */
  .cta-block {
    padding: 64px 20px;
  }

  .cta-h {
    font-size: clamp(28px, 8vw, 44px);
  }

  .cta-note {
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }

  /* ── Case studies ── */
  .cs-card {
    padding: 24px 20px;
  }

  /* ── Footer ── */
  .footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    padding: 32px 20px;
  }

  .footer-links {
    gap: 16px;
  }
}

/* ── Small mobile: ≤ 480px ── */
@media (max-width: 480px) {

  .ticker-item {
    padding: 0 16px;
    font-size: 10px;
  }

  .hero-h1 {
    font-size: clamp(32px, 9vw, 44px);
  }

  .hero-panel {
    font-size: 11px;
  }

  .terminal-line {
    font-size: 11px;
  }

  .t-out {
    font-size: 10px;
  }

  .stats {
    grid-template-columns: 1fr 1fr;
  }

  .stat-n {
    font-size: 30px;
  }

  .stat-label {
    font-size: 9px;
  }

  .section-h {
    font-size: clamp(22px, 7vw, 30px);
  }

  .service-tag {
    font-size: 9px;
    word-break: break-word;
  }

  .step-n {
    font-size: 32px;
  }

  .faq-q {
    font-size: var(--text-md);
    line-height: 1.35;
  }

  .tech-stack { 
    grid-template-columns: 1fr; 
  }
}

/* ── CTA (centred) ── */
@media (max-width: 768px) {
  .cta-block {
    padding: 64px 20px;
  }
  .cta-note {
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }
  /* Quote block */
  .quote-block {
    padding: 36px 28px;
    margin-top: 48px;
  }
  .quote-text {
    font-size: clamp(16px, 4.5vw, 20px);
  }
}