/* ================================================================
   ECON Tech — Cards
   All card variants: sol-card, why-card, pillar, challenge, process-sol
   ================================================================ */

/* ── Solution Cards (3-col grid, services pages) ── */
.sol-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--gray-200);
  transition: box-shadow 0.3s, transform 0.3s, border-color 0.3s;
  position: relative;
  overflow: hidden;
}

.sol-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}

.sol-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: transparent;
}

.sol-card:hover::after { transform: scaleX(1); }

.sol-icon {
  width: 52px;
  height: 52px;
  background: rgba(223,8,8,0.07);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  flex-shrink: 0;
}

.sol-icon svg { width: 26px; height: 26px; }

.sol-badge {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--red);
  background: rgba(223,8,8,0.08);
  border: 1px solid rgba(223,8,8,0.2);
  padding: 3px 9px;
  border-radius: 4px;
  margin-bottom: 10px;
}

.sol-card h3 {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 10px;
  line-height: 1.25;
}

.sol-card > p {
  font-size: 14px;
  color: var(--gray-mid);
  line-height: 1.65;
  margin-bottom: 20px;
}

.sol-benefits {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sol-benefits li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  color: var(--gray-500);
  line-height: 1.5;
}

.sol-benefits li::before {
  content: '✓';
  color: var(--red);
  font-weight: 800;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ── Why Cards (4-col grid, numbered) ── */
.why-card {
  text-align: center;
  padding: 32px 20px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.why-card:hover {
  border-color: var(--red);
  box-shadow: var(--shadow-red);
}

.why-card-num {
  font-family: var(--font-head);
  font-size: 48px;
  font-weight: 900;
  color: var(--red);
  opacity: 0.15;
  line-height: 1;
  margin-bottom: 12px;
}

.why-card h4 {
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
}

.why-card p {
  font-size: 13px;
  color: var(--gray-mid);
  line-height: 1.6;
}

/* ── Pillar Cards (left-bordered, icon + text) ── */
.pillar-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--gray-100);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--red);
}

.pillar-icon {
  width: 40px;
  height: 40px;
  background: rgba(223,8,8,0.08);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.pillar-icon svg { width: 20px; height: 20px; }

.pillar-card h4 {
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
}

.pillar-card p {
  font-size: 13px;
  color: var(--gray-mid);
  line-height: 1.55;
  margin-bottom: 0;
}

/* ── Challenge Items (industry pages) ── */
.challenge-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--gray-100);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--red);
}

.challenge-icon {
  width: 40px;
  height: 40px;
  background: rgba(223,8,8,0.08);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.challenge-icon svg { width: 20px; height: 20px; }

.challenge-item h4 {
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
}

.challenge-item p {
  font-size: 13px;
  color: var(--gray-mid);
  line-height: 1.55;
  margin-bottom: 0;
}

/* ── Process Solution Cards (dark bg, industry AI solutions) ── */
.process-sol-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: background var(--transition), border-color var(--transition);
}

.process-sol-card:hover {
  background: rgba(255,255,255,0.07);
  border-color: rgba(223,8,8,0.25);
}

.process-sol-badge {
  font-family: var(--font-head);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 8px;
  display: block;
}

.process-sol-card h4 {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 8px;
}

.process-sol-card p {
  font-size: 13px;
  color: rgba(255,255,255,0.50);
  line-height: 1.6;
  margin: 0;
}

/* ── Result Feature (industry results section) ── */
.result-feat {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.result-feat-check {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(223,8,8,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  flex-shrink: 0;
}

.result-feat-check svg { width: 15px; height: 15px; }

.result-feat h4 {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 10px;
  line-height: 1.3;
}

.result-feat p {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.7;
  margin: 0;
}

/* ── Grids ── */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.pillars-stack {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.challenge-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.process-sol-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.results-feat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 48px;
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .solutions-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid       { grid-template-columns: repeat(2, 1fr); }
  .results-feat-grid { grid-template-columns: repeat(2, 1fr); gap: 36px; }
}

@media (max-width: 600px) {
  .solutions-grid { grid-template-columns: 1fr; }
  .why-grid       { grid-template-columns: 1fr; }
  .results-feat-grid { grid-template-columns: 1fr; gap: 28px; }
}