.converter-page {
  max-width: 1280px;
  margin: auto;
  padding: 60px max(5vw, 24px) 110px;
}

.converter-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(310px, .65fr);
  gap: 50px;
  align-items: end;
  margin-bottom: 48px;
}

.converter-intro .back {
  display: inline-block;
  margin-bottom: 50px;
  color: #607572;
  font-size: 13px;
  font-weight: 700;
}

.converter-intro .eyebrow,
.card-heading .eyebrow,
.quick-card .eyebrow {
  margin-bottom: 15px;
}

.converter-intro h1 {
  margin: 0 0 18px;
  font: 800 clamp(46px, 5vw, 68px)/1 'Manrope', sans-serif;
  letter-spacing: -.05em;
}

.converter-lead {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.coverage-card {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 26px;
  border-radius: 13px;
  background: var(--green);
  color: white;
  box-shadow: var(--shadow);
}

.coverage-number {
  display: grid;
  flex: 0 0 48px;
  width: 48px;
  height: 48px;
  place-items: center;
  border-radius: 9px;
  background: var(--mint);
  color: var(--green);
  font: 800 18px 'Manrope', sans-serif;
}

.coverage-card small,
.source-card > small,
.result-panel small {
  color: #b9cfca;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .16em;
}

.coverage-card p {
  margin: 8px 0 0;
  color: #d7e2df;
  font-size: 13px;
  line-height: 1.6;
}

.coverage-card strong {
  color: white;
}

.converter-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(300px, .6fr);
  gap: 24px;
  align-items: start;
}

.converter-card,
.quick-card,
.source-card {
  border: 1px solid var(--line);
  border-radius: 13px;
  background: white;
}

.converter-card {
  overflow: hidden;
  box-shadow: 0 18px 50px rgba(13, 50, 47, .06);
}

.card-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 24px;
  padding: 30px 32px 27px;
  border-bottom: 1px solid var(--line);
}

.card-heading h2,
.quick-card h2,
.source-card h2 {
  margin: 0;
  font: 700 25px 'Manrope', sans-serif;
  letter-spacing: -.025em;
}

.card-heading > span {
  padding: 7px 11px;
  border-radius: 999px;
  background: #eef5e8;
  color: var(--green);
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
}

.quantity-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  padding: 24px 32px;
  border-bottom: 1px solid var(--line);
}

.quantity-button {
  min-height: 68px;
  padding: 10px 8px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: white;
  color: var(--ink);
  font: 700 11px 'DM Sans', sans-serif;
  cursor: pointer;
  transition: border-color .18s ease, background-color .18s ease, color .18s ease;
}

.quantity-button:hover {
  border-color: #afc5bf;
  background: #f7faf4;
}

.quantity-button.active {
  border-color: var(--green);
  background: var(--green);
  color: white;
}

.quantity-button b {
  display: block;
  margin-bottom: 5px;
  color: var(--green);
  font: 800 17px 'Manrope', sans-serif;
}

.quantity-button.active b {
  color: var(--mint);
}

.conversion-panel {
  display: grid;
  grid-template-columns: 1.1fr 1fr 46px 1fr;
  gap: 12px;
  align-items: end;
  padding: 30px 32px;
}

.conversion-panel label > span {
  margin-bottom: 9px;
  color: var(--ink);
  font-size: 12px;
  font-weight: 700;
}

.conversion-panel input,
.conversion-panel select {
  width: 100%;
  height: 50px;
  border: 1px solid #cad5d1;
  border-radius: 8px;
  outline: 0;
  background: white;
  color: var(--ink);
  font: 600 14px 'DM Sans', sans-serif;
}

.conversion-panel input {
  padding: 0 14px;
  font-size: 17px;
}

.conversion-panel select {
  padding: 0 34px 0 12px;
}

.conversion-panel input:focus,
.conversion-panel select:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(13, 78, 73, .09);
}

.swap-button {
  display: grid;
  width: 46px;
  height: 50px;
  place-items: center;
  border: 1px solid #cad5d1;
  border-radius: 8px;
  background: var(--paper);
  color: var(--green);
  font-size: 20px;
  cursor: pointer;
}

.swap-button:hover {
  border-color: var(--green);
  background: #eef5e8;
}

.result-panel {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 30px;
  min-height: 170px;
  padding: 30px 32px;
  background: var(--green);
  color: white;
}

.result-panel strong {
  display: block;
  max-width: 540px;
  margin-top: 12px;
  overflow-wrap: anywhere;
  font: 800 clamp(35px, 5vw, 55px)/1 'Manrope', sans-serif;
  letter-spacing: -.04em;
}

.result-panel strong + span {
  display: block;
  margin-top: 8px;
  color: #d7e2df;
  font-size: 15px;
}

.result-meta {
  min-width: 190px;
  text-align: right;
}

.result-meta > span {
  display: block;
  margin-bottom: 12px;
  color: #b9cfca;
  font-size: 11px;
  line-height: 1.5;
}

.result-meta button {
  padding: 10px 13px;
  border: 1px solid rgba(255, 255, 255, .25);
  border-radius: 7px;
  background: rgba(255, 255, 255, .1);
  color: white;
  font-weight: 700;
  cursor: pointer;
}

.result-meta button:hover {
  background: rgba(255, 255, 255, .18);
}

.converter-aside {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.quick-card,
.source-card {
  padding: 28px;
}

.quick-list {
  display: grid;
  gap: 8px;
  margin-top: 22px;
}

.quick-list button {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8faf6;
  color: var(--ink);
  font-weight: 700;
  cursor: pointer;
}

.quick-list button:hover {
  border-color: #afc5bf;
  background: #eef5e8;
  color: var(--green);
}

.quick-list button span {
  margin: 0 auto;
  color: #8ca09c;
}

.source-card {
  background: #edf3e9;
}

.source-card > small {
  color: var(--muted);
}

.source-card h2 {
  margin-top: 10px;
}

.source-card p {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.75;
}

.source-links {
  display: grid;
  gap: 8px;
  margin-top: 18px;
}

.source-links a {
  color: var(--green);
  font-size: 11px;
  font-weight: 700;
}

@media (max-width: 1050px) {
  .converter-shell {
    grid-template-columns: 1fr;
  }

  .converter-aside {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 800px) {
  .converter-page {
    padding-top: 35px;
  }

  .converter-intro {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .converter-intro .back {
    margin-bottom: 35px;
  }

  .quantity-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .conversion-panel {
    grid-template-columns: 1fr 46px 1fr;
  }

  .value-field {
    grid-column: 1 / -1;
  }

  .result-panel {
    align-items: flex-start;
    flex-direction: column;
  }

  .result-meta {
    text-align: left;
  }
}

@media (max-width: 620px) {
  .card-heading,
  .quantity-grid,
  .conversion-panel,
  .result-panel {
    padding-right: 20px;
    padding-left: 20px;
  }

  .card-heading {
    align-items: flex-start;
  }

  .quantity-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .converter-aside {
    grid-template-columns: 1fr;
  }
}