:root {
  color-scheme: dark;
  --bg: #070a12;
  --panel: rgba(255, 255, 255, 0.08);
  --panel-strong: rgba(255, 255, 255, 0.14);
  --text: #f7fbff;
  --muted: #aeb8c8;
  --line: rgba(255, 255, 255, 0.16);
  --cyan: #3ee7f2;
  --green: #8cffb2;
  --pink: #ff6bb5;
  --yellow: #ffd166;
  --blue: #6aa8ff;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 18% 12%, rgba(62, 231, 242, 0.22), transparent 30%),
    radial-gradient(circle at 82% 8%, rgba(255, 107, 181, 0.18), transparent 28%),
    linear-gradient(135deg, #070a12 0%, #101827 46%, #09111b 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

.hero {
  min-height: 92vh;
  padding: 24px clamp(18px, 4vw, 64px) 56px;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 32%;
  background: linear-gradient(180deg, transparent, var(--bg));
  pointer-events: none;
}

.topbar,
.hero-grid,
.section,
.footer {
  max-width: 1180px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 0;
}

.brand,
.nav-actions {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
  font-weight: 800;
}

.brand-mark,
.panel-icon {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(135deg, var(--cyan), var(--green));
  color: #061018;
  font-weight: 900;
}

.nav-actions {
  gap: 8px;
  color: var(--muted);
  font-weight: 700;
}

.nav-actions a {
  padding: 10px 12px;
  border-radius: 8px;
}

.nav-actions a:hover,
.api-link {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: clamp(32px, 6vw, 72px);
  align-items: center;
  min-height: calc(92vh - 90px);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(3rem, 8vw, 6.8rem);
  line-height: 0.94;
}

.hero-text {
  max-width: 620px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 8px;
  font-weight: 900;
}

.primary-button {
  background: linear-gradient(135deg, var(--cyan), var(--green));
  color: #061018;
}

.secondary-button {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.08);
}

.hero-panel {
  min-height: 540px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(155deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.04)),
    conic-gradient(from 110deg, rgba(62, 231, 242, 0.32), rgba(255, 107, 181, 0.24), rgba(140, 255, 178, 0.26), rgba(62, 231, 242, 0.32));
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.orbit {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 50%;
  transform: rotate(-18deg);
}

.orbit-one {
  inset: 76px 42px 118px;
}

.orbit-two {
  inset: 132px 98px 74px;
}

.score-card {
  position: absolute;
  left: 34px;
  right: 34px;
  top: 42px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(7, 10, 18, 0.62);
  backdrop-filter: blur(18px);
}

.score-label,
.score-card span,
.mini-grid span,
.stat-label,
.muted {
  color: var(--muted);
}

.score-card strong {
  display: block;
  margin: 8px 0;
  font-size: 6rem;
  line-height: 0.9;
}

.mini-grid {
  position: absolute;
  left: 34px;
  right: 34px;
  bottom: 34px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.mini-grid div,
.stat-card,
.course-card,
.data-panel,
.schedule-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  backdrop-filter: blur(16px);
}

.mini-grid div {
  padding: 18px;
}

.mini-grid strong {
  display: block;
  margin-top: 8px;
  font-size: clamp(1.4rem, 3vw, 2.2rem);
}

.section {
  padding: 72px clamp(18px, 4vw, 32px);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

h2 {
  margin: 0;
  max-width: 720px;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1;
}

.stats-grid,
.course-grid,
.operations-grid {
  display: grid;
  gap: 16px;
}

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

.stat-card {
  padding: 22px;
}

.stat-card strong {
  display: block;
  margin-top: 8px;
  font-size: clamp(2rem, 4vw, 3.4rem);
}

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

.course-card {
  min-height: 280px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.course-card:nth-child(2n) {
  background: rgba(62, 231, 242, 0.1);
}

.course-card:nth-child(3n) {
  background: rgba(255, 209, 102, 0.1);
}

.course-level {
  display: inline-flex;
  width: fit-content;
  padding: 7px 10px;
  border-radius: 8px;
  background: rgba(140, 255, 178, 0.16);
  color: var(--green);
  font-weight: 900;
}

.course-card h3 {
  margin: 18px 0 12px;
  font-size: 1.45rem;
}

.course-card p {
  color: var(--muted);
  line-height: 1.55;
}

.course-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.course-meta span {
  padding: 8px 10px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
  font-weight: 800;
}

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

.data-panel {
  padding: 20px;
}

.data-panel.wide {
  grid-column: 1 / -1;
}

.panel-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.panel-title h3 {
  margin: 0;
}

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

.list-row {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 14px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.list-row strong,
.list-row span {
  display: block;
}

.schedule {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.schedule-item {
  padding: 16px;
}

.schedule-item strong {
  display: block;
  margin: 8px 0;
  font-size: 1.35rem;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 28px clamp(18px, 4vw, 32px) 42px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

@media (max-width: 900px) {
  .hero-grid,
  .stats-grid,
  .course-grid,
  .operations-grid,
  .schedule {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    min-height: auto;
    padding-top: 64px;
  }

  .hero-panel {
    min-height: 420px;
  }

  .section-heading,
  .footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 620px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-actions {
    width: 100%;
    justify-content: space-between;
  }

  .hero {
    min-height: auto;
  }

  h1 {
    font-size: clamp(2.55rem, 16vw, 4.2rem);
  }

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

  .score-card strong {
    font-size: 4.6rem;
  }
}