/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 1.25rem;
  line-height: 1.65;
  color: #1a1a1a;
  background: #fff;
  min-width: 320px;
  -webkit-text-size-adjust: 100%;
}

a {
  color: #000;
}

/* Header */
header {
  background: #fff;
}

.header-content {
  max-width: 1120px;
  margin: 0 auto;
  padding: 1.5rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.logo {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: #000;
  text-decoration: none;
}

nav ul {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  gap: 1.75rem;
}

nav a {
  color: #444;
  text-decoration: none;
  font-size: 1.25rem;
  font-weight: 400;
}

nav a:hover {
  color: #000;
}

/* Main content */
main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Hero section */
.hero {
  padding: 8rem 0 7rem;
  max-width: 760px;
}

.hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  color: #000;
}

.hero p {
  font-size: 1.5rem;
  font-weight: 400;
  color: #555;
  line-height: 1.55;
  max-width: 700px;
}

/* Sections */
section {
  padding: 6rem 0;
}

section h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-bottom: 2.5rem;
  color: #000;
}

.section-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem 1.5rem;
  margin-bottom: 2.5rem;
}

.section-header h2 {
  margin-bottom: 0;
}

.github-link {
  font-size: 1.25rem;
  font-weight: 400;
  color: #777;
  text-decoration: underline;
  text-decoration-color: #ccc;
  text-underline-offset: 2px;
  white-space: nowrap;
}

.github-link:hover {
  color: #000;
  text-decoration-color: #000;
}

/* Intro text */
.intro-text {
  color: #444;
  margin-bottom: 3rem;
}

.intro-text p {
  margin-bottom: 1.25rem;
  text-align: left;
}

.intro-text p:last-child {
  margin-bottom: 0;
}

.intro-text strong {
  color: #000;
  font-weight: 600;
}

.intro-text a {
  text-decoration: underline;
  text-decoration-color: #ccc;
  text-underline-offset: 2px;
}

.intro-text a:hover {
  text-decoration-color: #000;
}

/* Exam tables */
.exam-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 1.25rem;
}

.exam-table th,
.exam-table td {
  padding: 1.1rem 1rem;
  text-align: center;
}

.exam-table th {
  font-size: 1.5rem;
  font-weight: 600;
  color: #000;
  border-bottom: 0.25px solid #000;
}

.exam-table--oral {
  table-layout: fixed;
}

.exam-table--oral th:nth-child(1),
.exam-table--oral td:nth-child(1) {
  width: 13%;
}

.exam-table--oral th:nth-child(2),
.exam-table--oral td:nth-child(2) {
  width: 44%;
}

.exam-table--oral th:nth-child(3),
.exam-table--oral td:nth-child(3) {
  width: 25%;
}

.exam-table--oral th:nth-child(4),
.exam-table--oral td:nth-child(4) {
  width: 18%;
}

.exam-table a {
  color: #000;
  text-decoration: underline;
  text-decoration-color: #ccc;
  text-underline-offset: 2px;
}

.exam-table a:hover {
  text-decoration-color: #000;
}

/* Exam cards (mobile) */
.exam-cards {
  display: none;
  grid-template-columns: 1fr;
  gap: 0;
}

.exam-card {
  padding: 1.5rem 0;
}

.exam-card-header {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: #000;
}

.exam-card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
}

.exam-card-links a {
  color: #000;
  text-decoration: underline;
  text-decoration-color: #ccc;
  text-underline-offset: 2px;
  font-size: 1.25rem;
}

.exam-card-links a:hover {
  text-decoration-color: #000;
}

/* Pass rates */
.pass-rates {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 2.5rem 1.5rem;
}

.rate-card {
  padding: 0;
}

.rate-card .year {
  font-size: 1.5rem;
  font-weight: 600;
  color: #777;
  margin-bottom: 0.5rem;
}

.rate-card .rate {
  font-size: 2.25rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: #000;
}

.rate-card .details {
  font-size: 1.25rem;
  color: #777;
  margin-top: 0.4rem;
}

/* Tips */
.tips-list {
  list-style: none;
}

.tips-list li {
  padding: 1.25rem 0;
  color: #444;
}

.tips-list li:first-child {
  padding-top: 0;
}

.tips-list li:last-child {
  padding-bottom: 0;
}

.tips-list strong {
  color: #000;
  font-weight: 600;
}

.tips-list a {
  color: #000;
  text-decoration: underline;
  text-decoration-color: #ccc;
  text-underline-offset: 2px;
}

.tips-list a:hover {
  text-decoration-color: #000;
}

/* Discord / contact */
#discord p,
#contact p {
  color: #444;
}

#contact p + p {
  margin-top: 1.25rem;
}

#discord a,
#contact a {
  color: #000;
  text-decoration: underline;
  text-decoration-color: #ccc;
  text-underline-offset: 2px;
}

#discord a:hover,
#contact a:hover {
  text-decoration-color: #000;
}

/* Responsive */
@media (max-width: 768px) {
  .header-content {
    padding: 1.25rem 1.25rem;
  }

  nav ul {
    gap: 1.1rem;
  }

  main {
    padding: 0 1.25rem;
  }

  .hero {
    padding: 4rem 0 3.5rem;
  }

  section {
    padding: 3.5rem 0;
  }

  .exam-table {
    display: none;
  }

  .exam-cards {
    display: grid;
  }
}

@media (min-width: 769px) {
  .exam-cards {
    display: none;
  }

  .exam-table {
    display: table;
  }
}