:root {
  --ink: #07173a;
  --muted: #526078;
  --paper: #fbf7ef;
  --panel: #fffdf8;
  --line: #d9d0c1;
  --navy: #0b3472;
  --navy-strong: #06275a;
  --amber: #d99016;
  --amber-soft: #fff3d7;
  --green: #2f7b55;
  --blue-soft: #eaf2ff;
  --shadow: 0 18px 60px rgba(7, 23, 58, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(255, 243, 215, 0.62), rgba(234, 242, 255, 0.54)),
    radial-gradient(circle at 12% 8%, rgba(217, 144, 22, 0.16), transparent 24rem),
    var(--paper);
  font-family: "IBM Plex Sans", Verdana, sans-serif;
}

a {
  color: inherit;
}

button,
input,
select {
  font: inherit;
}

label,
input,
select {
  min-width: 0;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 1500px;
  margin: 0 auto;
  padding: 1.25rem clamp(1rem, 3vw, 2.5rem);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2.2rem;
  height: 2.2rem;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--navy);
  font-family: "Source Serif 4", Georgia, serif;
}

.main-nav {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.main-nav a {
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0.55rem 0.85rem;
  color: var(--muted);
  text-decoration: none;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  border-color: var(--line);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.62);
}

main {
  max-width: 1500px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 3vw, 2.5rem) 3rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 28rem);
  gap: 1.5rem;
  align-items: end;
  padding: 1rem 0 1.5rem;
}

.eyebrow {
  margin: 0 0 0.35rem;
  color: var(--navy);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Source Serif 4", Georgia, serif;
  line-height: 1;
}

h1 {
  font-size: clamp(3.5rem, 8vw, 7.2rem);
  letter-spacing: -0.06em;
}

h2 {
  font-size: clamp(1.5rem, 2.4vw, 2rem);
}

h3 {
  font-size: 1.12rem;
}

.hero-copy {
  max-width: 61rem;
  margin: 0.75rem 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.8vw, 1.25rem);
}

.review-note {
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1rem 1.1rem;
  background: rgba(255, 253, 248, 0.82);
  box-shadow: 0 12px 32px rgba(7, 23, 58, 0.07);
}

.review-note strong,
.review-note span {
  display: block;
}

.review-note span {
  margin-top: 0.25rem;
  color: var(--muted);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(22rem, 0.82fr);
  gap: 1.25rem;
  align-items: start;
}

.console-card,
.results-card,
.guide-card,
.examples,
.faq,
.limitations {
  border: 1px solid var(--line);
  border-radius: 1.15rem;
  background: rgba(255, 253, 248, 0.94);
  box-shadow: var(--shadow);
}

.console-card,
.results-card {
  padding: clamp(1rem, 2vw, 1.3rem);
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.text-button {
  border: 1px dashed #94a5c0;
  border-radius: 0.75rem;
  padding: 0.62rem 0.85rem;
  color: var(--navy);
  background: var(--blue-soft);
  cursor: pointer;
}

.prior-grid {
  display: grid;
  grid-template-columns: 1fr 1fr minmax(16rem, 1fr);
  gap: 0.85rem;
  align-items: end;
  margin-bottom: 1rem;
}

label span {
  display: block;
  margin-bottom: 0.42rem;
  font-weight: 700;
}

label em {
  color: var(--muted);
  font-size: 0.82rem;
  font-style: normal;
  font-weight: 500;
}

input,
select {
  inline-size: calc(50% + 50%);
  border: 1px solid #cbd4e3;
  border-radius: 0.55rem;
  padding: 0.7rem 0.75rem;
  color: var(--ink);
  background: #fff;
}

input:focus,
select:focus,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(217, 144, 22, 0.35);
  outline-offset: 2px;
}

.prior-grid p {
  margin: 0;
  border: 1px solid #bed0ec;
  border-radius: 0.7rem;
  padding: 0.8rem;
  color: var(--navy);
  background: var(--blue-soft);
}

.course-table {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 0.9rem;
}

.table-row {
  display: grid;
  grid-template-columns: minmax(12rem, 1.8fr) 5.7rem 6.5rem 6.7rem 7.2rem 5.2rem;
  gap: 0.65rem;
  align-items: center;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid #ece5d8;
  background: #fff;
}

.table-head {
  color: #fff;
  background: var(--navy);
  font-weight: 700;
}

.course-row .quality-points {
  display: block;
  margin-top: 0.25rem;
  font-weight: 700;
}

.remove-course {
  border: 1px solid var(--line);
  border-radius: 0.55rem;
  padding: 0.62rem;
  color: var(--ink);
  background: #fff;
  cursor: pointer;
}

.totals-row {
  border-bottom: 0;
  background: #fffaf0;
}

.action-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.primary-button,
.secondary-button {
  border: 1px solid transparent;
  border-radius: 0.72rem;
  padding: 0.82rem 1.05rem;
  font-weight: 700;
  cursor: pointer;
}

.primary-button {
  color: #fff;
  background: var(--navy);
  box-shadow: 0 10px 22px rgba(11, 52, 114, 0.25);
}

.primary-button:hover {
  background: var(--navy-strong);
}

.secondary-button {
  border-color: var(--line);
  color: var(--ink);
  background: #fff;
}

.result-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
}

.result-grid article {
  min-height: 9rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1rem;
  background: linear-gradient(180deg, #fff, #fffaf1);
}

.result-kicker,
.result-grid em {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
  font-style: normal;
}

.result-grid strong {
  display: block;
  margin: 0.3rem 0;
  color: var(--navy);
  font-size: clamp(2.1rem, 5vw, 3.3rem);
  line-height: 1;
}

.formula-callout {
  margin-top: 1rem;
  border: 1px solid #e4bf73;
  border-radius: 0.85rem;
  padding: 0.9rem;
  background: var(--amber-soft);
}

.formula-callout p {
  margin: 0.45rem 0 0;
}

.grade-scale {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.45rem;
  margin-top: 1rem;
}

.grade-scale span {
  border: 1px solid #d8e0ed;
  border-radius: 999px;
  padding: 0.5rem;
  color: var(--navy);
  background: #fff;
  text-align: center;
  font-weight: 700;
}

.status-message {
  margin: 1rem 0 0;
  color: var(--green);
  font-weight: 700;
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}

.guide-card,
.examples,
.faq,
.limitations {
  padding: clamp(1rem, 2vw, 1.25rem);
}

.guide-card p,
.guide-card li,
.examples p,
.faq p,
.limitations p,
.site-footer p {
  color: var(--muted);
  line-height: 1.65;
}

.guide-card ol,
.guide-card ul {
  padding-left: 1.25rem;
}

.planning-panel,
.examples,
.faq,
.limitations {
  margin-top: 1rem;
}

.planning-panel {
  border: 1px solid var(--line);
  border-radius: 1.15rem;
  padding: clamp(1rem, 2vw, 1.25rem);
  background: rgba(255, 253, 248, 0.94);
  box-shadow: var(--shadow);
}

.planning-panel p {
  color: var(--muted);
  line-height: 1.65;
}

.example-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.85rem;
}

.example-grid article {
  border-top: 4px solid var(--amber);
  border-radius: 0.75rem;
  padding: 0.85rem;
  background: #fff;
}

.faq-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
}

details {
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  padding: 0.8rem 0.9rem;
  background: #fff;
}

summary {
  color: var(--ink);
  font-weight: 700;
  cursor: pointer;
}

.site-footer {
  max-width: 1500px;
  margin: 0 auto;
  padding: 1.5rem clamp(1rem, 3vw, 2.5rem) 2.5rem;
  text-align: center;
}

.toast {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 10;
  max-width: min(22rem, calc(100vw - 2rem));
  border-radius: 0.8rem;
  padding: 0.85rem 1rem;
  color: #fff;
  background: var(--navy);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(0.5rem);
  transition: opacity 160ms ease, transform 160ms ease;
  pointer-events: none;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .hero,
  .workspace,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .results-card {
    order: 2;
  }

  .prior-grid,
  .example-grid,
  .faq-list {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  main,
  .site-header {
    max-inline-size: 100vw;
    overflow-x: hidden;
  }

  .hero,
  .workspace,
  .review-note,
  .console-card,
  .results-card,
  .planning-panel,
  .examples,
  .faq,
  .limitations,
  .guide-card {
    max-inline-size: calc(100vw - 2rem);
  }

  h1 {
    font-size: clamp(2.35rem, 11vw, 3rem);
    letter-spacing: -0.045em;
    overflow-wrap: anywhere;
  }

  .prior-grid,
  .result-grid,
  .content-grid,
  .example-grid,
  .faq-list {
    grid-template-columns: 1fr;
  }

  .course-table {
    border: 0;
    overflow: visible;
  }

  .table-head,
  .totals-row {
    display: none;
  }

  .table-row {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    border: 1px solid var(--line);
    border-radius: 0.9rem;
    padding: 0.9rem;
  }

  .table-row label:first-child,
  .table-row .quality-wrap {
    grid-column: 1 / -1;
  }

  .action-row,
  .section-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .primary-button,
  .secondary-button,
  .text-button {
    inline-size: calc(50% + 50%);
  }

  .grade-scale {
    grid-template-columns: repeat(2, 1fr);
  }
}