@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
  --calc-bg: linear-gradient(160deg, #eef5ff 0%, #f8fbff 42%, #e4efff 100%);
  --calc-blue: #0f5ef7;
  --calc-blue-deep: #0a3fb4;
  --calc-slate: #1c2536;
  --calc-muted: #5e6b85;
  --calc-line: #d9e5fb;
  --calc-card: rgba(255, 255, 255, 0.88);
  --calc-shadow: 0 22px 60px rgba(22, 65, 148, 0.16);
  --calc-radius: 28px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  max-width: 100%;
  overflow-x: hidden;
  font-family: 'Plus Jakarta Sans', sans-serif;
  color: var(--calc-slate);
  background: var(--calc-bg);
}

body {
  padding: 24px;
}

.calc-page {
  max-width: 1220px;
  margin: 0 auto;
  width: 100%;
  min-width: 0;
}

.calc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.calc-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.calc-logo {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--calc-blue), #4c8dff);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1.2rem;
  box-shadow: 0 14px 24px rgba(15, 94, 247, 0.24);
}

.calc-brand h1 {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.6rem);
  line-height: 1.05;
}

.calc-brand p {
  margin: 6px 0 0;
  color: var(--calc-muted);
  font-size: 0.95rem;
}

.calc-close {
  appearance: none;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--calc-slate);
  padding: 12px 18px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(28, 37, 54, 0.08);
}

.calc-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  gap: 24px;
  min-width: 0;
}

.calc-panel {
  background: var(--calc-card);
  border: 1px solid rgba(255, 255, 255, 0.75);
  border-radius: var(--calc-radius);
  box-shadow: var(--calc-shadow);
  backdrop-filter: blur(18px);
  min-width: 0;
}

.calc-main {
  padding: 28px;
}

.calc-summary {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.calc-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.calc-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(15, 94, 247, 0.08);
  color: var(--calc-blue-deep);
  font-size: 0.82rem;
  font-weight: 700;
}

.calc-section-title {
  margin: 0 0 6px;
  font-size: 1.22rem;
}

.calc-section-copy {
  margin: 0 0 22px;
  color: var(--calc-muted);
  line-height: 1.6;
}

.calc-fields {
  display: grid;
  gap: 16px;
}

.calc-field {
  padding: 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--calc-line);
}

.calc-field label {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.93rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.calc-field label span {
  color: var(--calc-muted);
  font-weight: 600;
}

.calc-range-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 134px;
  gap: 14px;
  align-items: center;
  min-width: 0;
}

.calc-field input[type="range"] {
  width: 100%;
  accent-color: var(--calc-blue);
}

.calc-field input[type="number"],
.calc-field select {
  width: 100%;
  border: 1px solid var(--calc-line);
  border-radius: 16px;
  padding: 12px 14px;
  font: inherit;
  background: #fff;
  color: var(--calc-slate);
}

.calc-help {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  font-size: 0.78rem;
  color: var(--calc-muted);
}

.calc-toggle-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.calc-toggle {
  flex: 1 1 0;
  min-width: 110px;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid var(--calc-line);
  background: #fff;
  font: inherit;
  font-weight: 700;
  color: var(--calc-muted);
  cursor: pointer;
}

.calc-toggle.is-active {
  border-color: transparent;
  background: linear-gradient(135deg, var(--calc-blue), #4c8dff);
  color: #fff;
  box-shadow: 0 12px 26px rgba(15, 94, 247, 0.24);
}

.calc-value-card {
  padding: 24px;
  border-radius: 26px;
  background: linear-gradient(135deg, #0f5ef7, #1f7bff 62%, #61a4ff 100%);
  color: #fff;
  box-shadow: 0 20px 40px rgba(15, 94, 247, 0.24);
}

.calc-value-card small {
  display: block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  opacity: 0.8;
}

.calc-value-card strong {
  display: block;
  margin-top: 10px;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1;
}

.calc-value-card p {
  margin: 12px 0 0;
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.85);
}

.calc-metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.calc-metric {
  padding: 16px;
  border-radius: 20px;
  background: rgba(15, 94, 247, 0.06);
  border: 1px solid rgba(15, 94, 247, 0.1);
}

.calc-metric small {
  display: block;
  color: var(--calc-muted);
  margin-bottom: 8px;
  font-size: 0.8rem;
}

.calc-metric strong {
  display: block;
  font-size: 1.2rem;
  line-height: 1.2;
}

.calc-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.calc-list li {
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--calc-line);
  color: var(--calc-muted);
  line-height: 1.5;
}

.calc-table-wrap {
  margin-top: 22px;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--calc-line);
  background: #fff;
}

.calc-table-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  background: rgba(15, 94, 247, 0.05);
  border-bottom: 1px solid var(--calc-line);
}

.calc-table-head h3 {
  margin: 0;
  font-size: 1rem;
}

.calc-table-head p {
  margin: 0;
  color: var(--calc-muted);
  font-size: 0.84rem;
}

.calc-table-scroll {
  overflow: auto;
  max-height: 360px;
  max-width: 100%;
}

.calc-table {
  width: 100%;
  border-collapse: collapse;
}

.calc-table th,
.calc-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid #edf2fb;
  white-space: nowrap;
  font-size: 0.92rem;
}

.calc-table th {
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 1;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--calc-muted);
}

.calc-footnote {
  margin-top: 16px;
  color: var(--calc-muted);
  font-size: 0.84rem;
  line-height: 1.55;
}

@media (max-width: 980px) {
  body {
    padding: 16px;
  }

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

  .calc-summary {
    order: -1;
  }
}

@media (max-width: 640px) {
  body {
    padding: 12px;
  }

  .calc-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .calc-brand {
    align-items: flex-start;
  }

  .calc-range-row {
    grid-template-columns: 1fr;
  }

  .calc-field {
    padding: 14px;
    border-radius: 18px;
  }

  .calc-field label {
    align-items: flex-start;
    flex-direction: column;
  }

  .calc-toggle {
    min-width: 0;
  }

  .calc-metric-grid {
    grid-template-columns: 1fr;
  }

  .calc-main,
  .calc-summary {
    padding: 16px;
    border-radius: 22px;
  }

  .calc-table {
    min-width: 560px;
  }

  .calc-table th,
  .calc-table td {
    padding: 10px 12px;
    font-size: 0.84rem;
  }
}