:root {
  color-scheme: light;
  --ink: #17202a;
  --muted: #5b6675;
  --line: #d8dee8;
  --surface: #ffffff;
  --page: #f4f7fb;
  --accent: #0f766e;
  --accent-dark: #115e59;
  --gold: #d89b1d;
  --danger: #b42318;
  --radius: 8px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
}

a {
  color: inherit;
  text-decoration: none;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  padding: 14px clamp(18px, 5vw, 64px);
  backdrop-filter: blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 750;
}

.brand-text {
  display: grid;
  gap: 2px;
  line-height: 1.1;
}

.brand-text small {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 7px;
  background: var(--ink);
  color: white;
  font-size: 0.85rem;
}

.nav {
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav a:hover {
  color: var(--ink);
}

main {
  overflow: hidden;
}

.hero {
  display: grid;
  min-height: 540px;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  align-items: center;
  gap: clamp(28px, 6vw, 80px);
  padding: clamp(52px, 8vw, 96px) clamp(18px, 5vw, 64px) 44px;
  background:
    linear-gradient(120deg, rgba(15, 118, 110, 0.92), rgba(23, 32, 42, 0.83)),
    url("https://images.unsplash.com/photo-1497633762265-9d179a990aa6?auto=format&fit=crop&w=1800&q=80")
      center/cover;
  color: white;
}

.hero-copy {
  max-width: 720px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.pricing-band h2 {
  margin: 0;
  letter-spacing: 0;
}

.hero h1 {
  font-size: clamp(3.4rem, 9vw, 7rem);
  line-height: 0.92;
}

.hero p:not(.eyebrow) {
  max-width: 620px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 1.12rem;
  line-height: 1.7;
}

.primary-action,
.secondary-action {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 7px;
  padding: 0 18px;
  font: inherit;
  font-weight: 720;
  cursor: pointer;
}

.primary-action {
  background: white;
  color: var(--ink);
}

.secondary-action {
  background: var(--ink);
  color: white;
}

.hero-panel,
.results,
.tool-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.hero-panel {
  display: grid;
  min-height: 260px;
  align-content: center;
  justify-items: center;
  color: var(--ink);
  box-shadow: 0 24px 80px rgba(23, 32, 42, 0.22);
}

.hero-panel strong {
  font-size: clamp(5rem, 14vw, 8rem);
  line-height: 0.95;
}

.panel-label {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.calculator-section,
.advisor-band,
.feature-band,
.pricing-band {
  padding: clamp(44px, 7vw, 82px) clamp(18px, 5vw, 64px);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 24px;
}

.section-heading h2,
.pricing-band h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
}

.calculator-layout {
  display: grid;
  grid-template-columns: minmax(620px, 1fr) minmax(280px, 360px);
  gap: 22px;
  align-items: start;
}

.calculator,
.results {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
  padding: 18px;
}

.timezone-control {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8fafc;
  padding: 12px;
}

.timezone-control span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.timezone-control label {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: white;
  padding: 0 10px;
  font-weight: 750;
  cursor: pointer;
}

.timezone-control input {
  width: auto;
  min-height: auto;
  accent-color: var(--accent);
}

.timezone-control small {
  color: var(--muted);
}

.subjects-header,
.subject-controls {
  display: grid;
  grid-template-columns: minmax(160px, 0.9fr) minmax(260px, 1.35fr) 86px 70px;
  gap: 12px;
  align-items: center;
}

.subjects-header {
  padding: 0 0 10px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 750;
  text-transform: uppercase;
}

.subjects-list {
  display: grid;
  gap: 10px;
}

.subject-row {
  display: grid;
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  background: #fbfdff;
}

input,
select {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: white;
  color: var(--ink);
  font: inherit;
  padding: 0 10px;
}

.subject-select {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.subject-picker {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.group-label {
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 750;
  line-height: 1.3;
}

.components-list {
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.component-row {
  display: grid;
  grid-template-columns: minmax(170px, 0.9fr) minmax(180px, 1.35fr) 84px 76px;
  gap: 12px;
  align-items: center;
}

.component-row label {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 750;
  text-transform: uppercase;
}

.component-input {
  min-height: 32px;
  border: 0;
  background: transparent;
  padding: 0;
  accent-color: var(--accent);
  cursor: pointer;
}

.component-weight,
.component-output {
  display: inline-grid;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: white;
  color: var(--ink);
  font-weight: 750;
}

.component-weight {
  background: #eef7f5;
  color: var(--accent-dark);
}

.final-row {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  color: var(--muted);
  font-size: 0.9rem;
}

.final-row strong {
  display: inline-grid;
  min-width: 92px;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: white;
  color: var(--ink);
  font-size: 1rem;
}

input:focus,
select:focus {
  border-color: var(--accent);
  outline: 3px solid rgba(15, 118, 110, 0.18);
}

.core-points {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 18px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
}

.core-points legend {
  padding: 0 8px;
  color: var(--muted);
  font-weight: 750;
}

.core-row {
  display: grid;
  grid-template-columns: minmax(120px, 0.8fr) minmax(160px, 1.2fr) 74px 90px 60px;
  gap: 12px;
  align-items: center;
}

.core-row label {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 650;
}

.core-input {
  min-height: 32px;
  border: 0;
  background: transparent;
  padding: 0;
  accent-color: var(--accent);
  cursor: pointer;
}

.core-summary-row {
  grid-template-columns: minmax(120px, 0.8fr) minmax(160px, 1.2fr) 90px 60px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.core-spacer {
  min-height: 1px;
}

.metric,
.core-output,
.grade-output,
.core-row strong {
  display: inline-grid;
  min-height: 42px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #f8fafc;
  padding: 0 10px;
  font-weight: 750;
}

.grade-output,
.core-row strong {
  justify-content: center;
  color: var(--accent-dark);
  font-size: 1.1rem;
}

.results {
  position: sticky;
  top: 82px;
}

.score {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 8px 0 18px;
}

.score strong {
  font-size: 5rem;
  line-height: 1;
}

.score span {
  color: var(--muted);
  font-size: 1.5rem;
}

dl {
  display: grid;
  gap: 10px;
  margin: 0;
}

dl div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

dt {
  color: var(--muted);
}

dd {
  margin: 0;
  font-weight: 750;
}

#result-note {
  color: var(--muted);
  line-height: 1.55;
}

.diploma-checklist {
  display: grid;
  gap: 8px;
  margin-top: 14px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.diploma-condition {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 8px;
  align-items: start;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.45;
}

.condition-icon {
  display: inline-grid;
  width: 22px;
  height: 22px;
  place-items: center;
  border-radius: 999px;
  color: white;
  font-size: 0.86rem;
  font-weight: 850;
  line-height: 1;
}

.diploma-condition.is-met .condition-icon {
  background: var(--accent);
}

.diploma-condition.is-unmet .condition-icon {
  background: var(--danger);
}

.feature-band {
  background: white;
}

.advisor-band {
  background: #ffffff;
  border-top: 1px solid var(--line);
}

.advisor-eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.advisor-beta-note {
  border: 1px solid #f0c36a;
  border-radius: 999px;
  background: #fff7df;
  color: #7c5200;
  padding: 4px 8px;
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0;
  line-height: 1.35;
  text-transform: none;
}

.advisor-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 380px);
  gap: 22px;
  align-items: start;
}

.advisor-form,
.advisor-result {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
  padding: 18px;
}

.advisor-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.advisor-form label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 650;
}

.advisor-form textarea {
  width: 100%;
  min-height: 110px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--ink);
  font: inherit;
  padding: 10px;
}

.advisor-wide,
.advisor-form button {
  grid-column: 1 / -1;
}

.advisor-result {
  display: grid;
  gap: 14px;
}

#advisor-output {
  min-height: 220px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8fafc;
  padding: 14px;
  color: var(--ink);
  line-height: 1.6;
  white-space: pre-wrap;
}

.advisor-disclaimer {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.tool-card {
  display: grid;
  gap: 8px;
  position: relative;
  padding: 22px;
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease;
}

.tool-card:hover {
  border-color: rgba(15, 118, 110, 0.45);
  box-shadow: 0 12px 30px rgba(23, 32, 42, 0.1);
  transform: translateY(-2px);
}

.tool-card.is-disabled {
  cursor: default;
}

.tool-status {
  justify-self: start;
  border: 1px solid #f0c36a;
  border-radius: 999px;
  background: #fff7df;
  color: #7c5200;
  padding: 4px 8px;
  font-size: 0.72rem;
  font-weight: 750;
  line-height: 1.35;
}

.feature-grid h3 {
  margin: 0 0 8px;
}

.feature-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.coming-soon {
  background: #f8fafc;
}

.pricing-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  background: #e8f3f1;
}

.site-footer {
  display: grid;
  gap: 28px;
  border-top: 1px solid var(--line);
  background: #ffffff;
  padding: clamp(34px, 6vw, 64px) clamp(18px, 5vw, 64px);
}

.footer-brand {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  max-width: 780px;
}

.footer-brand strong {
  display: block;
  margin-bottom: 6px;
}

.footer-brand p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.feedback-form {
  display: grid;
  max-width: 860px;
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8fafc;
  padding: 18px;
}

.feedback-heading h2 {
  margin: 0;
  font-size: clamp(1.45rem, 3vw, 2rem);
}

.feedback-form label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 650;
}

.feedback-form textarea {
  width: 100%;
  min-height: 120px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--ink);
  font: inherit;
  padding: 10px;
}

.feedback-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.feedback-status {
  min-height: 22px;
  margin: 0;
  color: var(--accent-dark);
  font-size: 0.9rem;
  line-height: 1.5;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.5;
}

@media (max-width: 1120px) {
  .calculator-layout,
  .advisor-layout {
    grid-template-columns: 1fr;
  }

  .results {
    position: static;
  }
}

@media (max-width: 860px) {
  .topbar,
  .pricing-band {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .feature-grid,
  .advisor-form,
  .feedback-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .subjects-header,
  .subject-controls {
    grid-template-columns: minmax(150px, 0.8fr) minmax(220px, 1.2fr) 76px 58px;
    gap: 10px;
  }

  .component-row {
    grid-template-columns: minmax(145px, 0.9fr) minmax(130px, 1.2fr) 76px 70px;
    gap: 10px;
  }

  .core-row {
    grid-template-columns: minmax(110px, 0.8fr) minmax(130px, 1.2fr) 72px 82px 58px;
    gap: 10px;
  }

  .core-summary-row {
    grid-template-columns: minmax(110px, 0.8fr) minmax(130px, 1.2fr) 82px 58px;
  }
}

@media (max-width: 700px) {
  .nav {
    width: 100%;
    justify-content: space-between;
  }

  .subjects-header {
    display: none;
  }

  .subject-controls,
  .subject-row,
  .component-row {
    grid-template-columns: 1fr;
  }

  .component-row {
    gap: 8px;
  }

  .component-row label {
    margin-top: 2px;
  }

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

  .core-points {
    grid-template-columns: 1fr;
  }

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

  .core-summary-row {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 3.4rem;
  }
}