.whychoose {
  background: linear-gradient(180deg, #041e35 0%, #020b16 100%);
  padding: 100px 0;
  text-align: center;
}

.whychoose .section-tag {
  font-size: 11px;
  letter-spacing: 3px;
  color: #00d2b9;
  margin-bottom: 14px;
  font-weight: 500;
  text-transform: uppercase;
  display: block;
}

.whychoose h2 {
  font-size: clamp(26px, 4vw, 46px);
  font-weight: 800;
  color: white;
  margin: 0 0 16px;
  letter-spacing: -0.5px;
}

.whychoose h2 span {
  color: #00d2b9;
}

.whychoose-desc {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.5);
  max-width: 580px;
  margin: 0 auto 56px;
  line-height: 1.7;
}

.whychoose-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
  text-align: left;
  align-items: start;
}

/* Left Cards */
.whychoose-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.wc-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(0, 210, 185, 0.15);
  border-radius: 12px;
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform 0.3s, border-color 0.3s;
  position: relative;
  overflow: hidden;
}

.wc-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,210,185,0.4), transparent);
}

.wc-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 210, 185, 0.4);
  background: rgba(0, 210, 185, 0.04);
}

.wc-icon {
  font-size: 24px;
  color: #00d2b9;
  line-height: 1;
}

.wc-card h3 {
  font-size: 14px;
  font-weight: 700;
  color: white;
  margin: 0;
}

.wc-card p {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.6;
  margin: 0;
}

/* Right Chart */
.whychoose-chart {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(0, 210, 185, 0.15);
  border-radius: 16px;
  padding: 32px 28px;
}

.whychoose-chart h3 {
  font-size: 18px;
  font-weight: 700;
  color: white;
  margin: 0 0 8px;
}

.chart-sub {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 28px;
  font-family: monospace;
  display: block;
}

/* Perf bars */
.perf-bars {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.perf-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.perf-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.perf-name {
  font-size: 13px;
  font-weight: 600;
  color: white;
}

.perf-values {
  display: flex;
  gap: 12px;
  font-size: 11px;
}

.val-before {
  color: rgba(255, 255, 255, 0.35);
  font-weight: 400;
  transition: color 0.3s, font-weight 0.3s;
}

.val-after {
  color: #00d2b9;
  font-weight: 700;
  transition: color 0.3s, font-weight 0.3s;
}

.val-before.active-val {
  color: white;
  font-weight: 700;
}

.val-after.active-val {
  color: #00d2b9;
  font-weight: 700;
}

.perf-track {
  width: 100%;
  height: 7px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 10px;
  overflow: hidden;
  position: relative;
}

.perf-bar {
  position: absolute;
  top: 0; left: 0;
  height: 100%;
  width: 0%;
  border-radius: 10px;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.3s ease;
}

.before-bar {
  background: rgba(255, 255, 255, 0.3);
  opacity: 0;
}

.after-bar {
  background: linear-gradient(90deg, #00b8a0, #00d2b9, #00f0d0);
  opacity: 1;
}

/* Legend buttons */
.chart-legend {
  display: flex;
  gap: 12px;
  margin-top: 28px;
}

.legend-btn {
  cursor: pointer;
  padding: 8px 18px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: rgba(255, 255, 255, 0.45);
  font-size: 12px;
  font-weight: 500;
  transition: all 0.25s ease;
  font-family: inherit;
  user-select: none;
}

.legend-btn:hover {
  border-color: #00d2b9;
  color: #00d2b9;
  cursor: pointer;
}

.legend-btn.active {
  border-color: #00d2b9;
  color: #00d2b9;
  background: rgba(0, 210, 185, 0.1);
  font-weight: 700;
}

/* Responsive */
@media (max-width: 900px) {
  .whychoose-wrapper {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .whychoose-cards {
    grid-template-columns: 1fr;
  }
  .whychoose {
    padding: 60px 0;
  }
}