:root {
  --vpc-navy: #07152a;
  --vpc-blue: #2563eb;
  --vpc-sky: #eaf4ff;
  --vpc-cyan: #35b9e9;
  --vpc-ink: #12213a;
  --vpc-muted: #64748b;
  --vpc-line: #dce5f0;
  --vpc-soft: #f7f9fc;
  --vpc-white: #ffffff;
  --vpc-radius: 22px;
}

.vpc,
.vpc * {
  box-sizing: border-box;
}

.vpc {
  width: min(1180px, calc(100% - 32px));
  margin: 48px auto 64px;
  color: var(--vpc-ink);
  font-family: inherit;
}

.vpc button,
.vpc input {
  font: inherit;
}

.vpc__header {
  max-width: 750px;
  margin: 0 auto 28px;
  text-align: center;
}

.vpc__eyebrow {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--vpc-blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.22em;
}

.vpc__header h1 {
  margin: 0;
  color: var(--vpc-navy);
  font-size: clamp(36px, 5vw, 62px);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1;
}

.vpc__header p {
  max-width: 650px;
  margin: 18px auto 0;
  color: var(--vpc-muted);
  font-size: 17px;
  line-height: 1.65;
}

.vpc__notice {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 18px;
  padding: 15px 18px;
  border: 1px solid #c9dcf7;
  border-radius: 14px;
  background: #f1f7ff;
  color: #30435f;
  font-size: 13px;
  line-height: 1.55;
}

.vpc__notice p {
  margin: 0;
}

.vpc__notice-icon {
  display: grid;
  flex: 0 0 22px;
  width: 22px;
  height: 22px;
  place-items: center;
  border-radius: 50%;
  background: var(--vpc-blue);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
}

.vpc__workspace {
  display: grid;
  grid-template-columns: minmax(300px, 0.82fr) minmax(440px, 1.18fr);
  overflow: hidden;
  border: 1px solid var(--vpc-line);
  border-radius: var(--vpc-radius);
  background: var(--vpc-white);
  box-shadow: 0 24px 60px rgba(7, 21, 42, 0.09);
}

.vpc__panel {
  padding: clamp(24px, 4vw, 42px);
}

.vpc__syringe-panel {
  border-right: 1px solid var(--vpc-line);
  background:
    radial-gradient(circle at 10% 0%, rgba(53, 185, 233, 0.12), transparent 30%),
    linear-gradient(155deg, #f8fbff 0%, #eef5fc 100%);
}

.vpc__step-heading {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  margin-bottom: 20px;
}

.vpc__step-heading h2 {
  margin: 0;
  color: var(--vpc-navy);
  font-size: 18px;
  font-weight: 750;
  line-height: 1.25;
}

.vpc__step-heading p {
  margin: 5px 0 0;
  color: var(--vpc-muted);
  font-size: 13px;
  line-height: 1.45;
}

.vpc__step-number {
  display: grid;
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 9px;
  background: var(--vpc-navy);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
}

.vpc__syringe-options {
  display: grid;
  gap: 14px;
}

.vpc__syringe-card {
  display: grid;
  grid-template-columns: 90px 1fr;
  min-height: 112px;
  align-items: center;
  gap: 18px;
  width: 100%;
  padding: 18px;
  border: 1px solid var(--vpc-line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--vpc-ink);
  cursor: pointer;
  text-align: left;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.vpc__syringe-card:hover {
  border-color: #9ec5ff;
  transform: translateY(-1px);
}

.vpc__syringe-card:focus-visible,
.vpc__chips button:focus-visible,
.vpc__unit-toggle button:focus-visible,
.vpc__reset:focus-visible,
.vpc__shop-link:focus-visible,
.vpc input:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.28);
  outline-offset: 2px;
}

.vpc__syringe-card.is-selected {
  border-color: var(--vpc-blue);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1), 0 12px 26px rgba(37, 99, 235, 0.09);
}

.vpc__syringe-copy strong,
.vpc__syringe-copy small {
  display: block;
}

.vpc__syringe-copy strong {
  color: var(--vpc-navy);
  font-size: 18px;
}

.vpc__syringe-copy small {
  margin-top: 4px;
  color: var(--vpc-muted);
  font-size: 12px;
}

.vpc__syringe-art {
  position: relative;
  display: flex;
  height: 38px;
  align-items: center;
}

.vpc__needle {
  width: 13%;
  height: 2px;
  background: #768398;
}

.vpc__barrel {
  position: relative;
  display: flex;
  width: 68%;
  height: 29px;
  align-items: flex-start;
  justify-content: space-evenly;
  overflow: hidden;
  border: 2px solid #6d7d93;
  border-radius: 4px 9px 9px 4px;
  background: linear-gradient(90deg, rgba(53, 185, 233, 0.28) 0 22%, rgba(255, 255, 255, 0.9) 22%);
}

.vpc__barrel i {
  display: block;
  width: 1px;
  height: 10px;
  background: #6d7d93;
}

.vpc__barrel i:nth-child(even) {
  height: 6px;
}

.vpc__plunger {
  position: relative;
  width: 18%;
  height: 6px;
  background: #f97316;
}

.vpc__plunger::after {
  position: absolute;
  top: -8px;
  right: 0;
  width: 5px;
  height: 22px;
  border-radius: 2px;
  background: #f97316;
  content: '';
}

.vpc__input-section + .vpc__input-section {
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--vpc-line);
}

.vpc__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.vpc__chips button {
  min-width: 78px;
  min-height: 48px;
  padding: 11px 16px;
  border: 1px solid var(--vpc-line);
  border-radius: 12px;
  background: #fff;
  color: var(--vpc-ink);
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease;
}

.vpc__chips button:hover {
  border-color: #9ec5ff;
}

.vpc__chips button.is-selected {
  border-color: var(--vpc-blue);
  background: var(--vpc-sky);
  color: #164caf;
  box-shadow: inset 0 0 0 1px var(--vpc-blue);
}

.vpc__custom-field {
  display: grid;
  margin-top: 14px;
  gap: 7px;
  color: var(--vpc-ink);
  font-size: 13px;
  font-weight: 700;
}

.vpc__custom-field[hidden] {
  display: none;
}

.vpc__custom-field input {
  width: 100%;
  min-height: 48px;
  padding: 10px 13px;
  border: 1px solid #bdcadd;
  border-radius: 11px;
  background: #fff;
  color: var(--vpc-ink);
}

.vpc__custom-field--target {
  grid-template-columns: 1fr auto;
  align-items: end;
}

.vpc__custom-field--target label {
  display: grid;
  gap: 7px;
}

.vpc__unit-toggle {
  display: flex;
  overflow: hidden;
  border: 1px solid #bdcadd;
  border-radius: 11px;
}

.vpc__unit-toggle button {
  min-width: 58px;
  min-height: 48px;
  padding: 8px 12px;
  border: 0;
  background: #fff;
  color: var(--vpc-muted);
  cursor: pointer;
  font-size: 13px;
  font-weight: 750;
}

.vpc__unit-toggle button + button {
  border-left: 1px solid #bdcadd;
}

.vpc__unit-toggle button.is-selected {
  background: var(--vpc-navy);
  color: #fff;
}

.vpc__result {
  position: relative;
  margin-top: 18px;
  padding: clamp(24px, 4vw, 40px);
  overflow: hidden;
  border-radius: var(--vpc-radius);
  background: var(--vpc-navy);
  color: #fff;
  box-shadow: 0 20px 45px rgba(7, 21, 42, 0.2);
}

.vpc__result::before {
  position: absolute;
  top: -100px;
  right: -70px;
  width: 310px;
  height: 310px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(53, 185, 233, 0.18), transparent 68%);
  content: '';
  pointer-events: none;
}

.vpc__result-placeholder {
  position: relative;
  display: flex;
  min-height: 150px;
  align-items: center;
  justify-content: center;
  gap: 22px;
  text-align: left;
}

.vpc__result-placeholder[hidden],
.vpc__result-content[hidden],
.vpc__message[hidden] {
  display: none;
}

.vpc__result-mark {
  display: grid;
  flex: 0 0 64px;
  width: 64px;
  height: 64px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 20px;
  font-weight: 850;
  letter-spacing: -0.05em;
}

.vpc__result-placeholder h2 {
  margin: 0;
  color: #fff;
  font-size: 22px;
}

.vpc__result-placeholder p {
  margin: 7px 0 0;
  color: #aebdd0;
  font-size: 14px;
}

.vpc__result-content {
  position: relative;
}

.vpc__result-topline {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}

.vpc__result-topline > div:first-child > span {
  display: block;
  margin-bottom: 5px;
  color: #9fb1c7;
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.vpc__result-topline strong {
  display: block;
  color: #fff;
  font-size: clamp(40px, 7vw, 72px);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 0.95;
}

.vpc__result-topline strong small {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0;
}

.vpc__volume-pill {
  flex: 0 0 auto;
  padding: 10px 16px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: #d9e8f8;
  font-size: 16px;
  font-weight: 750;
}

.vpc__scale-wrap {
  margin-top: 38px;
}

.vpc__scale-labels {
  display: flex;
  justify-content: space-between;
  margin-bottom: 7px;
  color: #9fb1c7;
  font-size: 11px;
  font-weight: 700;
}

.vpc__scale {
  position: relative;
  height: 64px;
  overflow: visible;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
}

.vpc__scale-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  border-radius: 9px 0 0 9px;
  background: linear-gradient(90deg, var(--vpc-blue), var(--vpc-cyan));
  transition: width 250ms ease;
}

.vpc__scale-marker {
  position: absolute;
  top: -8px;
  bottom: -8px;
  left: 0;
  width: 2px;
  background: #fff;
  transform: translateX(-1px);
  transition: left 250ms ease;
  z-index: 3;
}

.vpc__scale-marker > span {
  position: absolute;
  bottom: calc(100% + 7px);
  left: 50%;
  padding: 3px 7px;
  border-radius: 6px;
  background: #fff;
  color: var(--vpc-navy);
  font-size: 11px;
  font-weight: 800;
  transform: translateX(-50%);
  white-space: nowrap;
}

.vpc__scale-marker.is-near-start > span {
  left: 0;
  transform: none;
}

.vpc__scale-marker.is-near-end > span {
  right: 0;
  left: auto;
  transform: none;
}

.vpc__scale-ticks {
  position: absolute;
  z-index: 1;
  inset: 0;
  pointer-events: none;
}

.vpc__scale-tick {
  position: absolute;
  bottom: 0;
  width: 1px;
  height: 14px;
  background: rgba(255, 255, 255, 0.42);
}

.vpc__scale-tick--medium {
  height: 28px;
  background: rgba(255, 255, 255, 0.58);
}

.vpc__scale-tick--major {
  height: 100%;
  background: rgba(255, 255, 255, 0.68);
}

.vpc__scale-tick span {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  color: #9fb1c7;
  font-size: 11px;
  font-weight: 700;
  font-style: normal;
  transform: translateX(-50%);
}

.vpc__scale-wrap > p {
  margin: 28px 0 0;
  color: #8fa3bd;
  font-size: 12px;
  text-align: right;
}

.vpc__result-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 24px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.13);
}

.vpc__result-grid > div {
  padding: 15px 16px;
  background: rgba(7, 21, 42, 0.8);
}

.vpc__result-grid span,
.vpc__result-grid strong {
  display: block;
}

.vpc__result-grid span {
  color: #8fa3bd;
  font-size: 11px;
}

.vpc__result-grid strong {
  margin-top: 4px;
  color: #fff;
  font-size: 14px;
}

.vpc__message {
  position: relative;
  margin-top: 18px;
  padding: 11px 14px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 650;
  line-height: 1.5;
}

.vpc__message--success {
  border: 1px solid rgba(74, 222, 128, 0.25);
  background: rgba(22, 163, 74, 0.14);
  color: #c7f9d7;
}

.vpc__message--warning,
.vpc__message--error {
  border: 1px solid rgba(251, 191, 36, 0.3);
  background: rgba(217, 119, 6, 0.17);
  color: #fde7b2;
}

.vpc__footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 22px;
}

.vpc__reset,
.vpc__shop-link {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 11px 20px;
  border-radius: 12px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 750;
  line-height: 1;
  text-decoration: none !important;
}

.vpc__reset {
  border: 1px solid var(--vpc-line);
  background: #fff;
  color: var(--vpc-ink);
}

.vpc__shop-link {
  border: 1px solid var(--vpc-navy);
  background: var(--vpc-navy);
  color: #fff !important;
}

@media (max-width: 820px) {
  .vpc {
    width: min(100% - 24px, 680px);
    margin-top: 32px;
  }

  .vpc__workspace {
    grid-template-columns: 1fr;
  }

  .vpc__syringe-panel {
    border-right: 0;
    border-bottom: 1px solid var(--vpc-line);
  }

  .vpc__syringe-options {
    grid-template-columns: repeat(3, 1fr);
  }

  .vpc__syringe-card {
    grid-template-columns: 1fr;
    min-height: 130px;
    gap: 10px;
  }
}

@media (max-width: 600px) {
  .vpc {
    width: min(100% - 12px, 520px);
    margin-top: 24px;
    margin-bottom: 40px;
  }

  .vpc__header h1 {
    font-size: 36px;
  }

  .vpc__header p {
    font-size: 15px;
  }

  .vpc__notice {
    padding: 13px;
  }

  .vpc__panel {
    padding: 20px 14px;
  }

  .vpc__syringe-options {
    grid-template-columns: 1fr;
  }

  .vpc__syringe-card {
    grid-template-columns: 92px 1fr;
    min-height: 102px;
  }

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

  .vpc__chips button {
    width: 100%;
    min-width: 0;
  }

  .vpc__custom-field--target {
    grid-template-columns: 1fr;
  }

  .vpc__unit-toggle button {
    flex: 1;
  }

  .vpc__result {
    padding: 22px 14px;
    border-radius: 18px;
  }

  .vpc__result-placeholder {
    min-height: 120px;
    flex-direction: column;
    text-align: center;
  }

  .vpc__result-topline {
    align-items: flex-end;
    flex-direction: row;
    gap: 12px;
  }

  .vpc__result-topline strong {
    font-size: 46px;
  }

  .vpc__volume-pill {
    padding: 8px 11px;
    font-size: 14px;
  }

  .vpc__scale-wrap {
    margin-top: 36px;
  }

  .vpc__scale {
    height: 60px;
  }

  .vpc__scale-tick span {
    font-size: 10px;
  }

  .vpc__scale-tick-label--mobile-optional {
    display: none;
  }

  .vpc__scale-wrap > p {
    margin-top: 30px;
    line-height: 1.45;
    text-align: left;
  }

  .vpc__result-grid {
    grid-template-columns: 1fr;
  }

  .vpc__result-grid > div {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 13px;
  }

  .vpc__result-grid strong {
    margin-top: 0;
    text-align: right;
  }

  .vpc__message {
    padding: 11px 12px;
    font-size: 12px;
  }

  .vpc__footer {
    align-items: stretch;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  .vpc *,
  .vpc *::before,
  .vpc *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}