:root {
  color-scheme: light;
  --surface: #f6fbff;
  --text: #274966;
  --muted: #5a7f9d;
  --accent: #548EBB;
  --accent-soft: #d8e8f5;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.12);
  --hint-fade-duration: 0.4s;
  --radius: 28px;
  --max-width: 1140px;
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
}

* {
  box-sizing: border-box;
  border: 1px solid rgba(84, 142, 187, 0.25);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: clamp(24px, 3vw, 60px);
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top left, rgba(139, 169, 181, 0.2), transparent 24%),
    linear-gradient(180deg, #f1f7fa 0%, #dfeaf0 100%);
  color: var(--text);
  line-height: 1.7;
}

img,
button,
input,
textarea {
  font: inherit;
}

button,
a {
  border: none;
  text-decoration: none;
}

.container {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
}

.header-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.header-inner .brand {
  justify-self: start;
}

.header-inner .site-nav {
  justify-self: center;
}

.header-inner .btn {
  justify-self: end;
}

.brand {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--text);
}

.site-nav {
  display: flex;
  gap: 1.4rem;
  flex-wrap: wrap;
}

.site-nav a,
.site-footer a {
  color: var(--muted);
  font-weight: 600;
}

.site-nav a:hover,
.site-footer a:hover {
  color: var(--text);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.95rem 1.45rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #548EBB, #7aa8cc);
  color: #fff;
  font-weight: 700;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.btn:hover {
  transform: translateY(-1px);
  opacity: 0.95;
}

.btn-alt {
  background: rgba(84, 142, 187, 0.2);
  color: var(--text);
}

.btn-small {
  padding: 0.8rem 1.2rem;
}

.section {
  padding: 5rem 0;
}

.section:first-of-type {
  padding-top: 3.5rem;
}

.section-heading {
  display: grid;
  gap: 0;
  justify-items: center;
  text-align: center;
  max-width: 720px;
  margin: 0 auto 1.6rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.section-heading h2,
.hero h1,
.hero-card h2 {
  margin: 0;
}

.hero h1 {
  font-size: clamp(2.5rem, 4.8vw, 4.4rem);
  line-height: 1.02;
}

.section-copy {
  max-width: 700px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 1rem;
}

.section-content {
  display: grid;
  gap: 1.75rem;
}

.hero {
  background: radial-gradient(circle at top left, rgba(84, 142, 187, 0.2), transparent 28%),
    radial-gradient(circle at bottom right, rgba(169, 203, 228, 0.36), transparent 32%);
}

.hero-content {
  grid-template-columns: 1fr minmax(320px, 440px);
  align-items: center;
  gap: 2rem;
  margin-top: 2rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1.75rem;
}

.hero-card {
  background: rgba(255, 255, 255, 0.98);
  border-radius: 32px;
  padding: 2rem;
  box-shadow: var(--shadow);
}

.hero-card-label {
  margin: 0 0 1rem;
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
}

.hero-card h2 {
  margin: 0 0 1rem;
  font-size: 1.7rem;
}

.hero-card p {
  margin: 0 0 1.5rem;
  color: var(--muted);
}

.feature-list,
.cards-grid,
.contact-grid {
  width: 100%;
}

.feature-list,
.cards-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.feature,
.card,
.contact-form {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.75rem;
}

.feature h3,
.card h3 {
  margin: 0 0 0.8rem;
  text-align: center;
}

.feature p {
  color: var(--muted);
  text-align: center;
}

.card li,
.contact-details p {
  color: var(--muted);
}

.card {
  display: grid;
  gap: 1rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.08);
}

.card ul {
  margin: 0;
  padding-left: 0;
  list-style: none;
}

.card li {
  margin-bottom: 0.5rem;
}

.card li:last-child {
  margin-bottom: 0;
}

.classes .card {
  --class-accent-rgb: 84, 142, 187;
  --class-accent: #548EBB;
  --class-scrollbar-width: 0.45rem;
  --class-scrollbar-thumb: rgba(var(--class-accent-rgb), 0.35);
  position: relative;
  grid-template-rows: auto minmax(0, 1fr);
  max-height: 22rem;
  overflow: hidden;
  padding: 1.2rem 1.2rem 1rem;
  background: var(--surface);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.09);
}

.classes .card::after {
  content: "Scroll for more info";
  position: absolute;
  left: 50%;
  bottom: 0.65rem;
  transform: translateX(-50%);
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--class-accent);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  opacity: 0;
  pointer-events: none;
  z-index: 3;
  transition: opacity var(--hint-fade-duration) ease;
}

.classes .card:is(:has(> ul:hover), :has(> ul:focus-within), :focus-within):not(.is-at-bottom)::after {
  opacity: 1;
}

.classes .card h3 {
  margin-bottom: 0;
  padding-top: 0.3rem;
  padding-bottom: 0.3rem;
  color: var(--class-accent);
  font-size: 1.16rem;
  line-height: 1.28;
}

.classes .card > ul {
  min-height: 0;
  overflow-y: hidden;
  padding-right: 0.6rem;
  padding-left: 0.6rem;
  scrollbar-width: thin;
  scrollbar-color: transparent transparent;
}

.classes .card > ul > li {
  margin: 0;
  padding: 0.65rem 0.35rem;
  background: transparent;
  font-size: 0.96rem;
  line-height: 1.5;
}

.classes .card > ul > li:not(:last-child) {
  border-bottom: 1px solid rgba(var(--class-accent-rgb), 0.24);
}

.classes .card > ul > li > strong {
  color: var(--class-accent);
  font-size: 0.9rem;
  line-height: 1.35;
  letter-spacing: 0.04em;
}

.classes .card > ul > li > ul {
  margin-top: 0.45rem;
  padding-left: 1.15rem;
  list-style: disc;
  list-style-position: outside;
}

.classes .card > ul > li > ul > li {
  padding-left: 0.1rem;
  font-size: 0.94rem;
  line-height: 1.45;
}

.classes .card:is(:hover, :focus-within) > ul {
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-color: rgba(var(--class-accent-rgb), 0.45) transparent;
}

.classes .card > ul::-webkit-scrollbar {
  width: var(--class-scrollbar-width);
}

.classes .card > ul::-webkit-scrollbar-thumb {
  background: transparent;
  border-radius: 999px;
}

.classes .card:is(:hover, :focus-within) > ul::-webkit-scrollbar-thumb {
  background: var(--class-scrollbar-thumb);
}

.classes .card > ul::-webkit-scrollbar-track {
  background: transparent;
}

.schedule-image-wrap {
  display: flex;
  justify-content: center;
}

.schedule-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  background: var(--surface);
}

.contact-grid {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 2rem;
}

.contact-details p {
  margin: 0 0 1rem;
}

.contact-form {
  display: grid;
  gap: 0.75rem;
}

.contact-form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.contact-form label {
  display: grid;
  gap: 0.45rem;
  color: var(--text);
  font-weight: 600;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border-radius: 14px;
  background: #ebf3f9;
  color: var(--text);
  resize: vertical;
}

.contact-form .btn {
  padding-top: 0.8rem;
  padding-bottom: 0.8rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid rgba(84, 142, 187, 0.45);
}

.message-modal {
  width: min(92vw, 560px);
  padding: 0;
  border: none;
  border-radius: 24px;
  background: transparent;
  box-shadow: none;
}

.message-modal::backdrop {
  background: rgba(39, 73, 102, 0.38);
  backdrop-filter: blur(8px);
}

.message-modal__content {
  --modal-title-size: clamp(1.16rem, 1.85vw, 1.38rem);
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 0.95rem;
  padding: 2rem 2rem 1.7rem;
  border-radius: 24px;
  background: linear-gradient(165deg, #f8fcff 0%, #eef5fb 100%);
  border: 1px solid rgba(84, 142, 187, 0.24);
  box-shadow: var(--shadow);
}

.message-modal__content::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: linear-gradient(90deg, #548EBB, #89b2d2);
}

.message-modal__content > * {
  position: relative;
  z-index: 1;
}

.message-modal__content p {
  margin: 0;
}

.message-modal__eyebrow {
  color: #5f9f8a;
  font-size: var(--modal-title-size);
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: none;
}

#messageModalClose {
  justify-self: end;
}

#messageModalTitle {
  margin: 0;
  padding: 0;
  font-size: var(--modal-title-size);
  line-height: 1.3;
  font-weight: 700;
  color: var(--text);
}

body:has(.message-modal[open]) {
  overflow: hidden;
}

.site-footer {
  padding: 1.5rem 0;
}

.site-footer p {
  margin: 0;
  color: var(--muted);
}

@media (max-width: 960px) {
  .hero-content,
  .contact-grid,
  .cards-grid,
  .feature-list {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 4.5rem;
  }

  .hero-card,
  .feature,
  .card,
  .contact-form {
    padding: 1.5rem;
  }

  .hero-card h2 {
    font-size: 1.55rem;
  }
}

@media (max-width: 700px) {
  .contact-form-row {
    grid-template-columns: 1fr;
  }

  .header-inner,
  .footer-inner {
    display: flex;
    flex-direction: column;
    align-items: stretch;
  }

  .site-nav {
    justify-content: center;
  }

  .section {
    padding: 3rem 0;
  }

  .section-heading {
    max-width: 100%;
  }

  .hero h1 {
    font-size: 2.3rem;
  }

  .section-heading h2 {
    font-size: 2rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-card,
  .feature,
  .card,
  .contact-form {
    padding: 1.35rem;
  }

  .btn {
    width: 100%;
  }
}