/* ============================================================
   maliyet / ROI bölümü
   ============================================================ */

.roi {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 24px;
  margin-bottom: 24px;
  align-items: stretch;
}

.roi-controls {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.roi-controls label {
  display: block;
  font-size: 13.5px;
  color: var(--muted);
}

.roi-controls output {
  float: right;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
}

.roi-controls input[type="range"] {
  width: 100%;
  margin-top: 10px;
  accent-color: var(--accent);
  height: 22px;
  cursor: pointer;
}

.roi-result {
  background: linear-gradient(180deg, var(--panel-2), var(--bg-soft));
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
}

.roi-numbers {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-top: 4px;
}

.roi-numbers small {
  display: block;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dim);
  font-family: var(--mono);
}

.roi-before {
  font-family: var(--mono);
  font-size: 26px;
  color: var(--dim);
  text-decoration: line-through;
  text-decoration-thickness: 2px;
}

.roi-arrow {
  color: var(--dim);
  font-size: 20px;
}

.roi-after {
  font-family: var(--mono);
  font-size: 46px;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--accent);
  line-height: 1;
}

.roi-saved {
  margin: 6px 0 0;
  font-size: 15px;
  color: var(--text);
}

.roi-saved strong {
  color: var(--accent);
  font-family: var(--mono);
}

.roi-note {
  margin: 8px 0 0;
  font-size: 12px;
  line-height: 1.55;
  color: var(--dim);
}

.roi-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.roi-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.roi-card .tc-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dim);
}

.roi-card strong {
  font-family: var(--mono);
  font-size: 30px;
  color: var(--accent);
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.roi-card span:last-child {
  font-size: 13px;
  color: var(--muted);
}

.roi-foot {
  margin: 18px 0 0;
  font-size: 12.5px;
  color: var(--dim);
}

@media (max-width: 900px) {
  .roi {
    grid-template-columns: 1fr;
  }
  .roi-cards {
    grid-template-columns: 1fr;
  }
  .roi-after {
    font-size: 38px;
  }
}

.roi-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 18px;
  padding: 20px 24px;
  border: 1px solid rgba(200, 255, 61, 0.22);
  border-radius: var(--radius);
  background: linear-gradient(90deg, rgba(200, 255, 61, 0.07), rgba(200, 255, 61, 0.02));
}

.roi-cta strong {
  display: block;
  font-size: 16px;
  color: var(--text);
  margin-bottom: 4px;
}

.roi-cta span {
  font-size: 13.5px;
  color: var(--muted);
}

.roi-cta .btn {
  flex-shrink: 0;
}

@media (max-width: 700px) {
  .roi-cta {
    flex-direction: column;
    align-items: flex-start;
  }
}

.roi-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.roi-presets .preset {
  font-size: 12px;
  padding: 6px 10px;
}

.roi-h2 {
  font-size: 22px;
  letter-spacing: -0.02em;
  margin: 40px 0 12px;
}

.roi-list {
  list-style: disc;
  margin: 0 0 10px;
  padding-left: 20px;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.7;
}

.roi-list li { margin-bottom: 6px; }
.roi-list strong { color: var(--text); }