:root {
  --bg: #f3f8f3;
  --surface: #ffffff;
  --surface-soft: #f7fbf7;
  --text: #102017;
  --muted: #647067;
  --primary: #16a34a;
  --primary-dark: #15803d;
  --primary-soft: #e8f7ed;
  --primary-border: #b8e4c6;
  --primary-ring: rgba(22, 163, 74, 0.16);
  --danger: #b42318;
  --danger-bg: #fff1f0;
  --border: #d5e1d7;
  --shadow: 0 10px 28px rgba(16, 32, 23, 0.08);
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--text);
  font-family: "Pretendard", "Noto Sans KR", "Apple SD Gothic Neo", sans-serif;
  background: var(--bg);
}

button,
input,
select {
  font: inherit;
}

.site-header,
.category-tabs,
main,
.site-footer {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  padding: 38px 0 18px;
}

.header-layout {
  display: grid;
  position: relative;
  gap: 20px;
  padding-top: 54px;
}

.language-control {
  position: absolute;
  top: 0;
  right: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  width: auto;
  min-height: 42px;
  padding: 5px 8px 5px 14px;
  color: var(--primary-dark);
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid var(--primary-border);
  border-radius: 9999px;
  box-shadow: 0 8px 22px rgba(22, 163, 74, 0.1);
  backdrop-filter: blur(10px);
  overflow: hidden;
}

.language-control::after {
  position: absolute;
  right: 20px;
  width: 7px;
  height: 7px;
  pointer-events: none;
  content: "";
  border-right: 2px solid var(--primary-dark);
  border-bottom: 2px solid var(--primary-dark);
  transform: translateY(-2px) rotate(45deg);
}

.language-control span {
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.02em;
}

.language-control select {
  width: auto;
  min-height: 34px;
  padding: 7px 34px 7px 12px;
  color: var(--primary-dark);
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background: linear-gradient(180deg, #ffffff 0%, var(--primary-soft) 100%);
  border: 1px solid var(--primary-border);
  border-radius: 9999px;
  outline: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.86);
}

.language-control select:focus {
  box-shadow: 0 0 0 3px var(--primary-ring);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 12px;
  font-size: clamp(2rem, 7vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.05em;
}

.intro {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.7;
}

.category-tabs {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  gap: 10px;
  padding: 10px 0;
  background: linear-gradient(180deg, rgba(243, 248, 243, 0.98), rgba(243, 248, 243, 0.9));
  backdrop-filter: blur(12px);
}

.category-select-control {
  position: relative;
  display: grid;
  gap: 6px;
  width: min(100%, 460px);
  margin: 0 auto;
  padding: 10px 12px;
  color: var(--primary-dark);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--primary-border);
  border-radius: 18px;
  box-shadow: 0 8px 22px rgba(22, 163, 74, 0.1);
}

.category-select-control::after {
  position: absolute;
  right: 28px;
  bottom: 25px;
  width: 8px;
  height: 8px;
  pointer-events: none;
  content: "";
  border-right: 2px solid var(--primary-dark);
  border-bottom: 2px solid var(--primary-dark);
  transform: rotate(45deg);
}

.category-select-control span {
  font-size: 0.78rem;
  font-weight: 900;
}

.category-select-control select {
  width: 100%;
  min-height: 44px;
  padding: 0 42px 0 14px;
  color: var(--text);
  font-weight: 900;
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background: linear-gradient(180deg, #ffffff 0%, var(--primary-soft) 100%);
  border: 1px solid var(--primary-border);
  border-radius: 999px;
  outline: none;
}

.category-select-control select:focus {
  box-shadow: 0 0 0 3px var(--primary-ring);
}

.category-section {
  margin: 18px 0 30px;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: var(--shadow);
}

.category-section[hidden] {
  display: none;
}

.section-heading {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}

.section-heading h2,
.seo-summary h2 {
  margin-bottom: 8px;
  font-size: clamp(1.45rem, 4vw, 2rem);
  letter-spacing: -0.04em;
}

.section-heading p:last-child,
.seo-summary p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.65;
}

.keyword-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 16px 0 0;
  list-style: none;
}

.calculator-keyword-list {
  margin-bottom: 18px;
}

.keyword-list li {
  padding: 8px 11px;
  color: var(--primary-dark);
  font-size: 0.88rem;
  font-weight: 800;
  background: #ffffff;
  border: 1px solid var(--primary-border);
  border-radius: 999px;
}

.seo-list {
  display: grid;
  gap: 8px;
  margin: 16px 0 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.65;
}

.seo-list li::marker {
  color: var(--primary);
}

.seo-list li {
  padding-left: 2px;
}

.page-link-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 16px;
}

.topic-group-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 18px;
}

.topic-group-card {
  padding: 14px;
  background: #ffffff;
  border: 1px solid var(--primary-border);
  border-radius: 18px;
  box-shadow: 0 12px 28px rgba(22, 163, 74, 0.07);
}

.topic-group-card h3 {
  margin-bottom: 10px;
  color: var(--primary-dark);
  font-size: 0.98rem;
  letter-spacing: -0.03em;
}

.topic-link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.topic-link-list a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 12px;
  color: var(--primary-dark);
  font-size: 0.9rem;
  font-weight: 850;
  text-decoration: none;
  background: var(--surface-soft);
  border: 1px solid var(--primary-border);
  border-radius: 999px;
}

.topic-link-list a:hover,
.topic-link-list a:focus-visible {
  color: #ffffff;
  background: var(--primary);
  outline: none;
}

.page-link-grid a,
.tool-link {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 14px;
  color: #ffffff;
  font-weight: 900;
  line-height: 1.35;
  text-align: center;
  text-decoration: none;
  white-space: normal;
  background: var(--primary);
  border-radius: 12px;
}

.landing-page .site-header {
  padding-bottom: 10px;
}

.landing-section {
  display: grid;
  gap: 16px;
}

.faq-item {
  padding: 16px 0;
  border-top: 1px solid var(--primary-border);
}

.faq-item:first-of-type {
  margin-top: 16px;
}

.faq-item h3 {
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.faq-item p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.65;
}

.calculator-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 18px;
}

.focused-calculator-grid {
  max-width: 760px;
  margin-right: auto;
  margin-left: auto;
}

.calculator-card {
  padding: 18px;
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.calculator-card h3 {
  margin-bottom: 6px;
  font-size: 1.14rem;
  letter-spacing: -0.03em;
}

.card-description {
  margin-bottom: 16px;
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.55;
}

.input-row {
  display: grid;
  gap: 12px;
}

label {
  display: grid;
  gap: 7px;
  color: #374151;
  font-size: 0.9rem;
  font-weight: 800;
}

input,
.calculator-card select {
  width: 100%;
  min-height: 48px;
  padding: 0 13px;
  color: var(--text);
  font-size: 1rem;
  font-weight: 700;
  background: #ffffff;
  border: 1px solid #cfd6e2;
  border-radius: 12px;
  outline: none;
}

input:focus,
.calculator-card select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-ring);
}

.calculator-card select {
  cursor: pointer;
}

.gacha-simulator {
  display: grid;
  gap: 16px;
  margin: 22px 0 24px;
}

.gacha-sim-panel {
  position: relative;
  overflow: hidden;
  padding: clamp(18px, 3vw, 24px);
  background: #ffffff;
  border: 1px solid var(--primary-border);
  border-radius: 22px;
  box-shadow: 0 16px 38px rgba(16, 32, 23, 0.08);
}

.gacha-sim-panel::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  background:
    radial-gradient(circle at 10% 0%, rgba(34, 197, 94, 0.14), transparent 32%),
    radial-gradient(circle at 92% 18%, rgba(20, 184, 166, 0.12), transparent 30%);
}

.gacha-sim-panel > * {
  position: relative;
}

.gacha-sim-settings h3,
.gacha-sim-results h3 {
  margin-bottom: 8px;
  font-size: clamp(1.25rem, 3vw, 1.65rem);
  letter-spacing: -0.04em;
}

.gacha-sim-inputs {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.gacha-sim-inputs input,
.gacha-sim-inputs select {
  width: 100%;
  min-height: 50px;
  padding: 0 14px;
  color: var(--text);
  font-size: 1rem;
  font-weight: 800;
  background: linear-gradient(180deg, #ffffff 0%, #f8fcf8 100%);
  border: 1px solid #cfd6e2;
  border-radius: 16px;
  outline: none;
}

.gacha-sim-inputs select {
  cursor: pointer;
}

.gacha-sim-inputs input:focus,
.gacha-sim-inputs select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-ring);
}

.gacha-sim-hint,
.gacha-sim-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.6;
}

.gacha-sim-result-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  align-items: start;
  margin-bottom: 14px;
}

.gacha-sim-result-head > div {
  min-width: 0;
}

.gacha-sim-result-head h3 {
  word-break: keep-all;
}

.gacha-sim-result-head strong {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  width: fit-content;
  max-width: min(100%, 760px);
  min-height: 44px;
  padding: 10px 14px;
  color: #ffffff;
  font-size: clamp(1rem, 3vw, 1.22rem);
  line-height: 1.3;
  text-align: left;
  word-break: keep-all;
  overflow-wrap: anywhere;
  background: linear-gradient(135deg, var(--primary), #0f766e);
  border-radius: 999px;
  box-shadow: 0 10px 24px rgba(22, 163, 74, 0.22);
}

.gacha-sim-chart-wrap {
  position: relative;
  min-height: 300px;
  padding: 12px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(240, 253, 244, 0.72)),
    repeating-linear-gradient(0deg, rgba(22, 163, 74, 0.05) 0, rgba(22, 163, 74, 0.05) 1px, transparent 1px, transparent 34px);
  border: 1px solid var(--border);
  border-radius: 18px;
}

.gacha-sim-chart-wrap canvas {
  display: block;
  width: 100%;
  height: 300px;
  border-radius: 12px;
  outline: none;
}

.gacha-sim-chart-wrap canvas:focus-visible {
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.28);
}

.gacha-sim-tooltip {
  position: fixed;
  z-index: 1000;
  width: max-content;
  max-width: min(240px, calc(100vw - 24px));
  padding: 11px 13px;
  color: var(--text);
  font-size: 0.84rem;
  font-weight: 850;
  line-height: 1.35;
  pointer-events: none;
  white-space: normal;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(22, 163, 74, 0.34);
  border-radius: 16px;
  box-shadow: 0 14px 32px rgba(22, 101, 52, 0.18);
}

.gacha-sim-tooltip strong {
  display: block;
  margin-bottom: 3px;
  color: var(--primary-dark);
  font-size: 1.06rem;
  line-height: 1.2;
}

.gacha-sim-hover-summary {
  min-height: 44px;
  margin: 10px 0 0;
  padding: 11px 13px;
  color: var(--primary-dark);
  font-size: 0.9rem;
  font-weight: 850;
  line-height: 1.45;
  word-break: keep-all;
  white-space: pre-line;
  background: linear-gradient(135deg, rgba(240, 253, 244, 0.98), rgba(255, 255, 255, 0.94));
  border: 1px solid rgba(22, 163, 74, 0.24);
  border-radius: 16px;
}

.gacha-sim-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.gacha-sim-stat-grid div {
  display: grid;
  gap: 5px;
  min-height: 74px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--primary-border);
  border-radius: 16px;
}

.gacha-sim-stat-grid span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 900;
}

.gacha-sim-stat-grid strong {
  color: var(--primary-dark);
  font-size: clamp(1rem, 3vw, 1.24rem);
  line-height: 1.25;
  letter-spacing: -0.03em;
}

.gacha-sim-stat-grid .gacha-sim-current-card {
  grid-column: 1 / -1;
  min-height: 132px;
  padding: 18px;
  background:
    radial-gradient(circle at 92% 8%, rgba(34, 197, 94, 0.2), transparent 34%),
    linear-gradient(135deg, #ffffff 0%, #f0fdf4 100%);
  border-color: rgba(22, 163, 74, 0.42);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.12), 0 16px 34px rgba(22, 101, 52, 0.1);
}

.gacha-sim-current-card strong {
  font-size: clamp(1.45rem, 5vw, 2.2rem);
}

.gacha-sim-current-card p {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 800;
  line-height: 1.55;
  white-space: pre-line;
}

.gacha-sim-results.is-error .gacha-sim-result-head strong {
  background: linear-gradient(135deg, var(--danger), #d97706);
  box-shadow: 0 10px 24px rgba(180, 35, 24, 0.16);
}

.date-field {
  display: grid;
  grid-template-columns: 1fr auto 0.72fr auto 0.72fr 48px;
  gap: 6px;
  align-items: center;
}

.date-field input {
  min-height: 48px;
  text-align: center;
}

.date-separator {
  color: var(--muted);
  font-weight: 900;
}

.date-picker {
  padding: 0;
  color: transparent;
  cursor: pointer;
}

.date-picker::-webkit-calendar-picker-indicator {
  width: 26px;
  height: 26px;
  margin: 0 auto;
  cursor: pointer;
}

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

.age-card {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 4vw, 30px);
}

.age-card::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  background:
    radial-gradient(circle at 12% 8%, rgba(34, 197, 94, 0.16), transparent 28%),
    radial-gradient(circle at 92% 20%, rgba(20, 184, 166, 0.13), transparent 30%);
}

.age-card > * {
  position: relative;
}

.age-layout {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.age-input-panel {
  display: grid;
  gap: 12px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--primary-border);
  border-radius: 18px;
}

.age-result {
  min-height: 128px;
  align-content: center;
  margin-top: 0;
  background: linear-gradient(135deg, #ffffff 0%, #f0fdf4 100%);
  border-color: var(--primary-border);
}

.bmi-scale {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.bmi-scale-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 800;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.bmi-scale-row.is-active {
  color: var(--primary-dark);
  background: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-ring);
}

.result-box {
  display: grid;
  gap: 7px;
  min-height: 86px;
  margin-top: 14px;
  padding: 15px;
  background: #ffffff;
  border: 1px solid #cfd6e2;
  border-left: 5px solid var(--primary);
  border-radius: 12px;
}

.result-value {
  color: var(--primary-dark);
  font-size: clamp(1.22rem, 5vw, 1.7rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.result-formula {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.5;
}

.result-box.is-error {
  background: var(--danger-bg);
  border-color: #f4b8ae;
  border-left-color: var(--danger);
}

.result-box.is-error .result-value {
  color: var(--danger);
}

.seo-summary {
  margin: 0 0 30px;
  padding: 20px;
  background: var(--primary-soft);
  border: 1px solid var(--primary-border);
  border-radius: 22px;
}

.policy-section {
  display: grid;
  gap: 16px;
}

.policy-updated {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.site-footer {
  padding: 0 0 34px;
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
}

@media (min-width: 680px) {
  .site-header,
  .category-tabs,
  main,
  .site-footer {
    width: min(1080px, calc(100% - 48px));
  }

  .category-tabs {
    padding: 12px 0;
    grid-template-columns: 1fr;
    align-items: center;
  }

  .category-select-control {
    gap: 4px;
    padding: 8px 10px;
  }

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

  .focused-calculator-grid {
    grid-template-columns: 1fr;
  }

  .age-card {
    grid-column: 1 / -1;
  }

  .date-card {
    grid-column: 1 / -1;
  }

  .health-card {
    grid-column: 1 / -1;
  }

  .age-layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
    align-items: stretch;
  }

  .age-input-panel {
    align-content: center;
    padding: 18px;
  }

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

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

  .gacha-sim-result-head {
    grid-template-columns: 1fr;
  }

  .gacha-sim-result-head strong {
    justify-self: start;
    text-align: left;
  }

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

  .date-input-row {
    grid-template-columns: repeat(2, minmax(260px, 1fr));
  }

  .date-add-row {
    grid-template-columns: minmax(300px, 1.35fr) minmax(160px, 0.65fr) minmax(160px, 0.65fr);
  }

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

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

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

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

@media (min-width: 960px) {
  .site-header {
    padding-top: 52px;
    padding-bottom: 12px;
  }

  .category-tabs {
    position: static;
    display: flex;
    justify-content: flex-end;
    width: min(1080px, calc(100% - 48px));
    margin: -34px auto 28px;
    padding: 0;
    background: transparent;
    backdrop-filter: none;
  }

  .category-select-control {
    width: 300px;
    gap: 8px;
    padding: 13px 14px 14px;
    margin: 0;
    background:
      linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(236, 253, 245, 0.96)),
      radial-gradient(circle at 18% 0%, rgba(34, 197, 94, 0.18), transparent 38%);
    border-color: rgba(134, 204, 157, 0.72);
    border-radius: 24px;
    box-shadow: 0 18px 42px rgba(16, 32, 23, 0.16);
  }

  .category-select-control::after {
    top: 56px;
    right: 27px;
    bottom: auto;
    width: 9px;
    height: 9px;
  }

  .category-select-control select {
    min-height: 50px;
    padding-left: 16px;
    padding-right: 46px;
    font-size: 1.02rem;
    background: linear-gradient(180deg, #ffffff 0%, #f0fdf4 100%);
    border-radius: 18px;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
  }

  .category-select-control span {
    padding-left: 2px;
    font-size: 0.82rem;
  }

  .header-layout {
    grid-template-columns: minmax(0, 1fr);
    align-items: start;
    padding-top: 0;
    padding-right: 320px;
  }

  .language-control {
    top: 2px;
  }

  .category-section,
  .seo-summary {
    padding: 24px;
  }

  .gacha-simulator {
    grid-template-columns: minmax(300px, 0.9fr) minmax(0, 1.35fr);
    align-items: stretch;
  }

  .gacha-sim-settings {
    align-content: start;
  }

  .gacha-sim-chart-wrap {
    min-height: 360px;
  }

  .gacha-sim-chart-wrap canvas {
    height: 360px;
  }

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

  .four-column {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}


.calculator-launcher {
  background:
    radial-gradient(circle at 12% 0%, rgba(34, 197, 94, 0.16), transparent 34%),
    linear-gradient(135deg, #f8fff9 0%, #ecfdf5 48%, #f7fee7 100%);
}

.launcher-heading {
  max-width: 720px;
}

.calculator-launcher-grid {
  display: grid;
  grid-template-columns: 1fr;
  align-items: stretch;
  gap: 14px;
  margin-top: 20px;
}

.calculator-launcher-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
  min-height: 0;
  padding: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(240, 253, 244, 0.94)),
    radial-gradient(circle at 90% 6%, rgba(34, 197, 94, 0.18), transparent 34%);
  border: 1px solid rgba(134, 204, 157, 0.72);
  border-radius: 24px;
  box-shadow: 0 18px 42px rgba(16, 32, 23, 0.1);
}


.calculator-launcher-card h3 {
  margin-bottom: 8px;
  color: var(--primary-dark);
  font-size: clamp(1.22rem, 3.8vw, 1.58rem);
  letter-spacing: -0.045em;
}

.topic-card-description {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.topic-primary-link,
.topic-secondary-links a {
  text-decoration: none;
}

.topic-primary-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 48px;
  padding: 0 16px;
  margin-top: 4px;
  color: #ffffff;
  font-weight: 900;
  text-align: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 16px;
  box-shadow: 0 12px 26px rgba(22, 163, 74, 0.24);
}

.calculator-launcher-card:has(.topic-secondary-links) .topic-primary-link {
  margin-top: auto;
}

.topic-primary-link:hover,
.topic-primary-link:focus-visible {
  transform: translateY(-1px);
  outline: none;
  box-shadow: 0 16px 30px rgba(22, 163, 74, 0.32);
}

.topic-secondary-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.topic-secondary-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 7px 12px;
  color: var(--primary-dark);
  font-size: 0.88rem;
  font-weight: 850;
  line-height: 1.25;
  text-align: center;
  white-space: normal;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid var(--primary-border);
  border-radius: 999px;
}

.topic-secondary-links a:hover,
.topic-secondary-links a:focus-visible {
  color: #ffffff;
  background: var(--primary);
  outline: none;
}

@media (min-width: 680px) {
  .calculator-launcher-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .calculator-launcher-card:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .calculator-launcher-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .calculator-launcher-card {
    grid-column: span 2;
  }

  .calculator-launcher-card:last-child {
    grid-column: 1 / -1;
  }

  .calculator-launcher-card:last-child .topic-secondary-links a {
    flex: 0 1 auto;
  }
}