/* ============================================================
   solutions.css — Solutions page styles
   ============================================================ */

/* ── Active nav link ── */
.nav-active {
  color: var(--white) !important;
  font-weight: 600;
}
.nav-header.scrolled .nav-active {
  color: var(--navy) !important;
}

/* ── Page hero ── */
.sol-hero {
  background: var(--navy);
  padding: 160px 0 80px;
  text-align: center;
}
.sol-hero-label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-light);
  margin-bottom: 20px;
}
.sol-hero-headline {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 900;
  color: var(--white);
  line-height: 1.08;
  margin-bottom: 20px;
}
.sol-hero-sub {
  font-size: clamp(16px, 2vw, 20px);
  color: rgba(255, 255, 255, 0.6);
  max-width: 520px;
  margin: 0 auto;
}

/* ── Sticky tabs bar ── */
.sol-tabs-bar {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.sol-tabs {
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.sol-tabs::-webkit-scrollbar { display: none; }

.sol-tab {
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  font-family: var(--font);
  padding: 18px 22px;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.2s, border-color 0.2s;
  flex-shrink: 0;
}
.sol-tab:hover {
  color: var(--navy);
}
.sol-tab--active {
  color: var(--navy);
  font-weight: 700;
  border-bottom-color: var(--blue);
}

/* ── Solution panels ── */
.sol-panel {
  padding: 96px 0;
  background: var(--white);
}
.sol-panel:nth-child(even) {
  background: var(--cloud);
}

.sol-panel-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(48px, 6vw, 96px);
  align-items: center;
}
.sol-panel-grid--reverse .sol-panel-media {
  order: -1;
}

/* Step number */
.sol-step-number {
  font-size: 72px;
  font-weight: 900;
  color: rgba(41, 39, 76, 0.07);
  line-height: 1;
  margin-bottom: -12px;
  letter-spacing: -0.02em;
}

/* Title / body */
.sol-panel-title {
  font-size: clamp(24px, 2.8vw, 36px);
  font-weight: 800;
  color: var(--navy);
  line-height: 1.15;
  margin-bottom: 20px;
}
.sol-panel-body {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 28px;
}

/* For brands callout */
.sol-for-brands {
  background: var(--bg-tint);
  border-left: 3px solid var(--blue);
  border-radius: 0 8px 8px 0;
  padding: 14px 18px;
  margin-bottom: 28px;
}
.sol-for-brands-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 4px;
}
.sol-for-brands-body {
  font-size: 14px;
  color: var(--text-mid);
  line-height: 1.55;
  margin: 0;
}

/* Capacity stats */
.sol-capacity-row {
  display: flex;
  gap: 40px;
  margin-bottom: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.sol-capacity-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.sol-capacity-value {
  font-size: clamp(24px, 2.5vw, 32px);
  font-weight: 800;
  color: var(--navy);
  line-height: 1;
}
.sol-stat-plus {
  font-size: 0.65em;
  font-weight: 700;
}
.sol-capacity-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
}

/* Badge row (AI Sorting) */
.sol-badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}
.sol-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 600;
  color: #8a6d00;
  background: rgba(255, 198, 73, 0.12);
  border: 1px solid rgba(255, 198, 73, 0.3);
  padding: 5px 12px;
  border-radius: 100px;
}

/* Fiber tags (mechanical) */
.sol-fiber-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.sol-fiber-tag {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-mid);
  background: var(--white);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 100px;
}

/* Capacity roadmap (enzymatic) */
.sol-roadmap {
  background: var(--navy);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 32px;
}
.sol-roadmap-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: 16px;
}
.sol-roadmap-steps {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.sol-roadmap-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 12px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  min-width: 0;
  flex-shrink: 0;
}
.sol-roadmap-step--active {
  background: var(--blue);
}
.sol-roadmap-year {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.55);
  font-weight: 500;
}
.sol-roadmap-step--active .sol-roadmap-year {
  color: rgba(255, 255, 255, 0.8);
}
.sol-roadmap-tons {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}
.sol-roadmap-arrow {
  color: rgba(255, 255, 255, 0.25);
  font-size: 14px;
}
.sol-roadmap-unit {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.35);
  margin-top: 10px;
}

/* CTA button */
.sol-cta {
  margin-top: 8px;
}

/* Image */
.sol-panel-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: block;
}

/* ── Full chain CTA band ── */
.sol-chain-cta {
  background: var(--navy-deeper);
  padding: 96px 0;
}
.sol-chain-cta-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: center;
}
.sol-chain-cta-title {
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 12px;
}
.sol-chain-cta-body {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 520px;
}
.sol-chain-steps {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.sol-chain-step {
  font-size: 13px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 5px 14px;
  border-radius: 100px;
}
.sol-chain-arrow {
  color: rgba(255, 255, 255, 0.25);
  font-size: 14px;
}
.sol-chain-cta-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-shrink: 0;
}

/* ── Case study teaser ── */
.sol-case-study {
  background: var(--navy-deeper);
  padding: 0;
}
.sol-case-study-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: stretch;
  min-height: 420px;
}
.sol-case-study-img-wrap {
  overflow: hidden;
}
.sol-case-study-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  display: block;
  transition: transform 0.6s ease;
}
.sol-case-study-inner:hover .sol-case-study-img {
  transform: scale(1.03);
}
.sol-case-study-content {
  padding: 64px 56px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 20px;
}
.sol-case-study-eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--yellow);
}
.sol-case-study-title {
  font-size: clamp(24px, 2.8vw, 36px);
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
}
.sol-case-study-body {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.75;
}

@media (max-width: 1024px) {
  .sol-case-study-inner { grid-template-columns: 1fr; min-height: auto; }
  .sol-case-study-img-wrap { aspect-ratio: 16/9; height: 280px; }
  .sol-case-study-content { padding: 40px 32px; }
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .sol-panel-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .sol-panel-grid--reverse .sol-panel-media { order: 0; }
  .sol-chain-cta-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .sol-chain-cta-actions {
    flex-direction: row;
  }
}

@media (max-width: 768px) {
  .sol-hero { padding: 120px 0 56px; }
  .sol-panel { padding: 64px 0; }
  .sol-tab { padding: 16px 16px; font-size: 13px; }
  .sol-step-number { font-size: 48px; }
  .sol-capacity-row { gap: 24px; }
  .sol-roadmap-steps { gap: 6px; }
  .sol-roadmap-step { min-width: 54px; padding: 8px 10px; }
  .sol-chain-cta { padding: 64px 0; }
  .sol-chain-cta-actions { flex-direction: column; }
}