:root {
  --navy: #0B1F3A;
  --gold: #F4B400;
  --bright-blue: #1E88E5;
  --sky-blue: #6EC6FF;
  --white: #FFFFFF;
  --green: #1F7A3B;
  --purple: #5B2CA0;
  --text: #132238;
  --muted: #65758B;
  --light: #F5F8FC;
  --border: rgba(11, 31, 58, 0.10);
  --shadow: 0 24px 70px rgba(11, 31, 58, 0.12);
  --radius: 26px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
  width: min(1140px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand img {
  width: 230px;
  height: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  font-weight: 650;
  font-size: 15px;
}

.nav-toggle {
  display: none;
  border: none;
  background: transparent;
  color: var(--navy);
  font-size: 30px;
  cursor: pointer;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--gold);
  color: var(--navy);
  font-weight: 750;
  border-radius: 999px;
  padding: 15px 24px;
  box-shadow: 0 12px 28px rgba(244, 180, 0, 0.26);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(244, 180, 0, 0.32);
}

.btn-secondary {
  background: var(--navy);
  color: var(--white);
  box-shadow: 0 12px 28px rgba(11, 31, 58, 0.25);
}

.btn-small { padding: 10px 17px; }

.hero {
  position: relative;
  overflow: hidden;
  padding: 86px 0 72px;
  background:
    radial-gradient(circle at 82% 18%, rgba(244, 180, 0, 0.22), transparent 27%),
    radial-gradient(circle at 10% 30%, rgba(30, 136, 229, 0.12), transparent 28%),
    linear-gradient(135deg, #fff 0%, #f8fbff 58%, #eef7ff 100%);
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 800;
  font-size: 13px;
  margin: 0 0 12px;
}

h1, h2, h3 {
  margin-top: 0;
  color: var(--navy);
  line-height: 1.06;
}

h1 {
  font-size: clamp(48px, 6.8vw, 80px);
  letter-spacing: -0.055em;
  font-weight: 780;
  margin-bottom: 18px;
}

h2 {
  font-size: clamp(34px, 4.5vw, 56px);
  letter-spacing: -0.045em;
  font-weight: 740;
  margin-bottom: 16px;
}

h3 {
  font-size: 24px;
  letter-spacing: -0.02em;
  font-weight: 730;
}

.hero-kicker {
  font-size: 24px;
  font-weight: 720;
  color: var(--gold);
  margin: 0 0 16px;
}

.hero-text {
  max-width: 700px;
  font-size: 20px;
  color: #36465C;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 32px 0;
}

.credibility-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  max-width: 700px;
}

.credibility-badges span {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 10px 13px;
  font-weight: 700;
  font-size: 14px;
  box-shadow: 0 8px 22px rgba(11, 31, 58, 0.06);
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.premium-hero-card {
  width: min(500px, 100%);
  min-height: 490px;
  border-radius: 38px;
  position: relative;
  background:
    radial-gradient(circle at 80% 16%, rgba(244, 180, 0, 0.7), transparent 8%),
    radial-gradient(circle at 18% 80%, rgba(30, 136, 229, 0.35), transparent 22%),
    linear-gradient(145deg, #0B1F3A, #071427);
  box-shadow: var(--shadow);
  overflow: hidden;
  padding: 34px;
}

.premium-hero-card::before {
  content: "";
  position: absolute;
  inset: 30px;
  border: 2px solid rgba(255,255,255,0.10);
  border-radius: 50%;
}

.student-screen {
  position: absolute;
  left: 38px;
  right: 38px;
  top: 82px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 22px;
  padding: 22px;
  color: #dceeff;
  box-shadow: 0 20px 50px rgba(0,0,0,0.28);
}

.screen-bar {
  height: 10px;
  width: 90px;
  background: linear-gradient(90deg, var(--gold), var(--bright-blue));
  border-radius: 99px;
  margin-bottom: 16px;
}

.student-screen code {
  display: block;
  font-size: 17px;
  line-height: 1.8;
}

.ai-bubble,
.python-bubble,
.orbit-icon {
  position: absolute;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-weight: 800;
}

.ai-bubble {
  right: 42px;
  top: 38px;
  width: 78px;
  height: 78px;
  color: var(--sky-blue);
  border: 2px solid rgba(110,198,255,0.5);
  background: rgba(30,136,229,0.10);
  font-size: 27px;
}

.python-bubble {
  left: 48px;
  bottom: 110px;
  width: 70px;
  height: 70px;
  color: var(--navy);
  background: var(--gold);
  font-size: 24px;
}

.orbit-icon {
  right: 76px;
  bottom: 116px;
  width: 98px;
  height: 98px;
  color: var(--gold);
  border: 2px solid rgba(244,180,0,0.46);
  font-size: 38px;
}

.hero-star {
  position: absolute;
  right: 150px;
  bottom: 70px;
  color: var(--gold);
  font-size: 80px;
  text-shadow: 0 0 30px rgba(244,180,0,0.5);
}

.hero-caption {
  position: absolute;
  left: 34px;
  right: 34px;
  bottom: 30px;
  color: white;
  text-align: center;
  font-weight: 720;
  letter-spacing: 0.04em;
}

.feature-strip {
  position: relative;
  z-index: 5;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: -32px;
}

.feature {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 25px;
  box-shadow: var(--shadow);
}

.feature-icon { font-size: 34px; margin-bottom: 12px; }
.feature h3 { font-size: 19px; margin-bottom: 8px; }
.feature p { margin: 0; color: var(--muted); }

.section { padding: 90px 0; }

.section-heading {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 44px;
}

.section-heading p:not(.eyebrow) {
  color: var(--muted);
  font-size: 18px;
}

.pathway-section,
.resources-section {
  background: var(--light);
}

.pathway-grid,
.build-grid,
.resources-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

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

.level-card,
.build-card,
.resource-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 18px 45px rgba(11, 31, 58, 0.08);
  overflow: hidden;
  position: relative;
}

.level-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 9px;
}

.level-green::before { background: var(--green); }
.level-blue::before { background: var(--bright-blue); }
.level-purple::before { background: var(--purple); }

.level-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.level-top span {
  background: var(--navy);
  color: var(--white);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 750;
  text-transform: uppercase;
}

.level-top strong {
  color: var(--gold);
  font-weight: 750;
}

.course-subtitle {
  color: var(--muted);
  font-weight: 700;
  margin-top: -10px;
}

.level-card ul {
  padding-left: 20px;
  color: #34445A;
}

.capstone {
  margin-top: 18px;
  background: rgba(244, 180, 0, 0.14);
  border: 1px solid rgba(244, 180, 0, 0.22);
  border-radius: 16px;
  padding: 14px;
  font-weight: 700;
  color: var(--navy);
}

.achievement-roadmap {
  margin-top: 28px;
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  overflow: hidden;
}

.achievement-roadmap div {
  text-align: center;
  padding: 26px 20px;
  border-right: 1px solid rgba(255,255,255,0.14);
}

.achievement-roadmap strong {
  display: block;
  color: var(--gold);
  font-size: 24px;
  font-weight: 750;
}

.achievement-roadmap span { color: rgba(255,255,255,0.78); }

.course-panels { display: grid; gap: 18px; }

.course-panel {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: 0 14px 38px rgba(11, 31, 58, 0.07);
  position: relative;
  overflow: hidden;
}

.course-panel h3,
.course-panel p {
  margin-left: 22px;
}

.course-panel p { color: var(--muted); }

.course-color {
  position: absolute;
  inset: 0 auto 0 0;
  width: 10px;
}

.green { background: var(--green); }
.blue { background: var(--bright-blue); }
.purple { background: var(--purple); }

.build-icon {
  font-size: 40px;
  margin-bottom: 12px;
}

.build-card p,
.resource-card p {
  color: var(--muted);
}

.resource-card a {
  color: var(--bright-blue);
  font-weight: 800;
}

.launch-lab {
  color: var(--white);
  background:
    radial-gradient(circle at 84% 20%, rgba(244, 180, 0, 0.28), transparent 26%),
    linear-gradient(135deg, rgba(11, 31, 58, 0.97), #061222);
}

.launch-lab h2,
.launch-lab h3 { color: var(--white); }

.launch-lab p {
  color: rgba(255,255,255,0.82);
  font-size: 18px;
}

.launch-grid {
  display: grid;
  grid-template-columns: 1fr 390px;
  gap: 42px;
  align-items: center;
}

.check-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 10px;
}

.check-list li::before {
  content: "✓";
  color: var(--gold);
  font-weight: 800;
  margin-right: 10px;
}

.qr-card {
  background: var(--white);
  color: var(--navy);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
  text-align: center;
}

.qr-card img {
  width: 190px;
  margin: 0 auto 18px;
  border-radius: 16px;
}

.qr-card h3 { margin-bottom: 8px; color: var(--navy); }
.qr-card p { color: var(--muted); margin-top: 0; }

.experience-section {
  background: var(--white);
}

.experience-card {
  background:
    radial-gradient(circle at 91% 15%, rgba(244, 180, 0, 0.18), transparent 26%),
    linear-gradient(135deg, #ffffff, #f8fbff);
  border: 1px solid var(--border);
  border-radius: 34px;
  padding: 48px;
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}

.experience-card p {
  font-size: 18px;
  color: #34445A;
}

.experience-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.experience-list span {
  background: var(--navy);
  color: var(--white);
  border-radius: 999px;
  padding: 11px 15px;
  font-weight: 700;
  font-size: 14px;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

details {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 21px 24px;
  box-shadow: 0 10px 25px rgba(11, 31, 58, 0.05);
}

summary {
  cursor: pointer;
  font-weight: 750;
  color: var(--navy);
}

details p { color: var(--muted); }

.footer {
  background: var(--navy);
  color: var(--white);
  padding: 52px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr 1fr 1fr;
  gap: 28px;
  align-items: start;
}

.footer img {
  max-width: 260px;
  background: white;
  border-radius: 14px;
  padding: 10px;
}

.footer p,
.footer a {
  color: rgba(255,255,255,0.78);
}

.footer a {
  display: block;
  margin-bottom: 8px;
}

.footer h4 {
  margin: 0 0 12px;
  color: var(--gold);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  margin-top: 34px;
  padding-top: 18px;
}

.footer-bottom p {
  margin: 0;
  font-size: 14px;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .nav-toggle { display: block; }

  .nav-links {
    display: none;
    position: absolute;
    top: 82px;
    left: 20px;
    right: 20px;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 22px;
    box-shadow: var(--shadow);
  }

  .nav-links.open { display: flex; }

  .hero-grid,
  .launch-grid,
  .experience-card,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .feature-strip,
  .pathway-grid,
  .achievement-roadmap,
  .faq-grid,
  .build-grid,
  .resources-grid {
    grid-template-columns: 1fr;
  }

  .hero { padding: 52px 0 62px; }
  .section { padding: 64px 0; }
  h1 { font-size: 48px; }
  .brand img { width: 190px; }
  .premium-hero-card { min-height: 420px; }
}


/* Expandable Course Cards */
.course-accordion {
  display: grid;
  gap: 18px;
}

.course-accordion-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 14px 38px rgba(11, 31, 58, 0.07);
  overflow: hidden;
  position: relative;
}

.course-accordion-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 10px;
}

.course-foundations::before { background: var(--green); }
.course-developer::before { background: var(--bright-blue); }
.course-ai::before { background: var(--purple); }

.course-accordion-card summary {
  list-style: none;
  cursor: pointer;
  padding: 30px 34px 30px 42px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
}

.course-accordion-card summary::-webkit-details-marker {
  display: none;
}

.course-accordion-card summary::after {
  content: "⌄";
  justify-self: end;
  font-size: 28px;
  font-weight: 700;
  color: var(--gold);
  transition: transform 0.2s ease;
}

.course-accordion-card[open] summary::after {
  transform: rotate(180deg);
}

.course-summary-main {
  display: flex;
  align-items: center;
  gap: 18px;
}

.course-icon {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: rgba(244, 180, 0, 0.14);
  font-size: 28px;
}

.course-summary-main h3 {
  margin-bottom: 6px;
}

.course-summary-main p {
  margin: 0;
  color: var(--muted);
  font-weight: 650;
}

.course-summary-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
  max-width: 430px;
}

.course-summary-badges span {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 11px;
  color: var(--navy);
  background: #fff;
  font-weight: 700;
  font-size: 13px;
}

.course-expanded {
  border-top: 1px solid var(--border);
  padding: 26px 34px 34px 42px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr 0.9fr;
  gap: 26px;
  background: linear-gradient(180deg, #ffffff 0%, #f9fbff 100%);
}

.course-expanded h4 {
  color: var(--navy);
  font-size: 18px;
  margin: 0 0 12px;
}

.check-grid,
.project-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

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

.check-grid li,
.project-list li {
  color: #34445A;
  font-weight: 550;
}

.check-grid li::before,
.project-list li::before {
  content: "✓";
  color: var(--gold);
  font-weight: 900;
  margin-right: 8px;
}

.course-outcome {
  background: var(--navy);
  color: white;
  border-radius: 22px;
  padding: 22px;
}

.course-outcome h4 {
  color: var(--gold);
}

.course-outcome p {
  margin: 0;
  color: rgba(255,255,255,0.82);
}

@media (max-width: 980px) {
  .course-accordion-card summary {
    grid-template-columns: 1fr;
    padding: 26px 24px 26px 34px;
  }

  .course-summary-badges {
    justify-content: flex-start;
  }

  .course-expanded {
    grid-template-columns: 1fr;
    padding: 24px 24px 30px 34px;
  }

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