/* ===== NEXUS ACADEMY — GLOBAL STYLES ===== */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Syne:wght@700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --brand: #6c47ff;
  --brand-mid: #8b6aff;
  --brand-light: #c4b2ff;
  --brand-pale: #f0ecff;
  --accent: #00d4aa;
  --accent-pale: #e0faf5;
  --orange: #ff6b35;
  --orange-pale: #fff0eb;
  --dark: #0a0a0f;
  --deep: #12121e;
  --card: #1a1a2e;
  --border: rgba(255,255,255,0.07);
  --border-light: rgba(108,71,255,0.15);
  --text: #e8e8f8;
  --mid: #8888aa;
  --muted: #555570;
  --cream: #fafafa;
  --white: #ffffff;
  --light-bg: #f5f5ff;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  background: var(--cream);
  color: var(--dark);
  overflow-x: hidden;
}

/* ===== NAV ===== */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 4rem;
  background: rgba(10,10,15,0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: all 0.3s;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
}

.nav-logo-mark {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--brand), var(--brand-mid));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.nav-logo-main {
  font-family: 'Syne', sans-serif;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.5px;
  display: block;
}

.nav-logo-sub {
  font-size: 0.55rem;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--brand-light);
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  list-style: none;
}

.nav-links a {
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  transition: all 0.3s;
}

.nav-links a:hover { color: var(--white); background: rgba(255,255,255,0.06); }
.nav-links a.active { color: var(--brand-light); }

.nav-enroll {
  background: linear-gradient(135deg, var(--brand), var(--brand-mid)) !important;
  color: var(--white) !important;
  font-weight: 700 !important;
  padding: 0.55rem 1.4rem !important;
  border-radius: 6px !important;
}

.nav-enroll:hover { opacity: 0.9; transform: translateY(-1px); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
}

.hamburger span {
  width: 22px; height: 2px;
  background: var(--white);
  display: block;
  transition: all 0.3s;
}

/* ===== PAGE WRAPPER ===== */
.page-content { margin-top: 68px; }

/* ===== PAGE HERO ===== */
.page-hero {
  background: var(--dark);
  padding: 4rem 4rem 3rem;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(108,71,255,0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.page-hero-tag {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--brand-light);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.8rem;
}

.page-hero-tag::before {
  content: '';
  width: 20px; height: 2px;
  background: var(--brand);
}

.page-hero h1 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: 0.8rem;
}

.page-hero h1 span { color: var(--brand-light); }

.page-hero p {
  font-size: 0.92rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.8;
  max-width: 560px;
}

/* ===== SECTION COMMON ===== */
.section { padding: 5rem 4rem; }
.section-dark { background: var(--dark); }
.section-deep { background: var(--deep); }
.section-alt { background: var(--light-bg); }
.section-brand { background: var(--brand-pale); }

.eyebrow {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--brand);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.6rem;
}

.eyebrow::before {
  content: '';
  width: 16px; height: 2px;
  background: var(--brand);
}

.eyebrow.accent { color: var(--accent); }
.eyebrow.accent::before { background: var(--accent); }
.eyebrow.light { color: var(--brand-light); }
.eyebrow.light::before { background: var(--brand-light); }

.sec-title {
  font-family: 'Syne', sans-serif;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  color: var(--dark);
  line-height: 1.05;
  letter-spacing: -1px;
  margin-bottom: 1rem;
}

.sec-title span { color: var(--brand); }
.sec-title .accent { color: var(--accent); }
.sec-title.white { color: var(--white); }
.sec-title.white span { color: var(--brand-light); }

.sec-sub {
  font-size: 0.92rem;
  color: var(--mid);
  line-height: 1.8;
  max-width: 520px;
}

/* ===== CARDS ===== */
.card {
  background: var(--white);
  border-radius: 12px;
  padding: 2rem;
  border: 1px solid rgba(0,0,0,0.06);
  transition: all 0.3s;
}

.card:hover {
  border-color: var(--brand-light);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(108,71,255,0.08);
}

.card-dark {
  background: var(--card);
  border: 1px solid var(--border);
}

.card-dark:hover {
  border-color: rgba(108,71,255,0.3);
  box-shadow: 0 16px 40px rgba(108,71,255,0.12);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  text-decoration: none;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.3px;
  padding: 0.9rem 2rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.3s;
}

.btn-brand {
  background: linear-gradient(135deg, var(--brand), var(--brand-mid));
  color: var(--white);
  box-shadow: 0 6px 20px rgba(108,71,255,0.3);
}

.btn-brand:hover { opacity: 0.9; transform: translateY(-2px); box-shadow: 0 12px 30px rgba(108,71,255,0.4); }

.btn-accent {
  background: var(--accent);
  color: var(--dark);
  box-shadow: 0 6px 20px rgba(0,212,170,0.25);
}

.btn-accent:hover { opacity: 0.9; transform: translateY(-2px); }

.btn-outline {
  background: transparent;
  color: var(--dark);
  border: 1.5px solid rgba(0,0,0,0.12);
}

.btn-outline:hover { border-color: var(--brand); color: var(--brand); }

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.2);
}

.btn-outline-white:hover { border-color: var(--brand-light); color: var(--brand-light); }

/* ===== BADGE ===== */
.badge {
  display: inline-block;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 0.28rem 0.8rem;
  border-radius: 4px;
}

.badge-brand { background: var(--brand-pale); color: var(--brand); border: 1px solid var(--border-light); }
.badge-accent { background: var(--accent-pale); color: #008866; }
.badge-orange { background: var(--orange-pale); color: var(--orange); }
.badge-dark { background: rgba(255,255,255,0.08); color: var(--text); }

/* ===== CODE STYLE ===== */
.code-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  background: rgba(108,71,255,0.1);
  color: var(--brand-light);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  border: 1px solid var(--border-light);
}

/* ===== TABLE ===== */
.styled-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.06);
}

.styled-table th {
  background: var(--dark);
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 1rem 1.5rem;
  text-align: left;
}

.styled-table td {
  padding: 0.9rem 1.5rem;
  font-size: 0.85rem;
  color: var(--mid);
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

.styled-table tr:last-child td { border-bottom: none; }
.styled-table tr:hover td { background: var(--brand-pale); }

/* ===== FORM ===== */
.form-card {
  background: var(--white);
  border-radius: 16px;
  padding: 2.5rem;
  border: 1px solid rgba(0,0,0,0.06);
  box-shadow: 0 8px 30px rgba(0,0,0,0.06);
}

.form-card-dark {
  background: var(--card);
  border: 1px solid var(--border);
}

.form-group { margin-bottom: 1.2rem; }

.form-group label {
  display: block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--mid);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--light-bg);
  border: 1.5px solid rgba(0,0,0,0.08);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  color: var(--dark);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.88rem;
  transition: border-color 0.3s;
  outline: none;
}

.form-card-dark .form-group input,
.form-card-dark .form-group select,
.form-card-dark .form-group textarea {
  background: rgba(255,255,255,0.05);
  border-color: var(--border);
  color: var(--text);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--brand); background: var(--white); }

.form-card-dark .form-group input:focus,
.form-card-dark .form-group select:focus,
.form-card-dark .form-group textarea:focus { background: rgba(108,71,255,0.05); }

.form-group select option { background: var(--white); color: var(--dark); }
.form-group textarea { resize: vertical; min-height: 100px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

/* ===== STAT ===== */
.stat-num {
  font-family: 'Syne', sans-serif;
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--brand);
  display: block;
  line-height: 1;
  letter-spacing: -1px;
}

.stat-lbl {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--mid);
  margin-top: 0.3rem;
}

/* ===== FOOTER ===== */
footer {
  background: var(--dark);
  padding: 4rem 4rem 2rem;
  border-top: 1px solid var(--border);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-logo-mark {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--brand), var(--brand-mid));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  margin-bottom: 0.8rem;
}

.footer-logo-main {
  font-family: 'Syne', sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--white);
  display: block;
  letter-spacing: -0.5px;
}

.footer-logo-sub {
  font-size: 0.55rem;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--brand-light);
  display: block;
  margin-bottom: 1rem;
}

.footer-desc {
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.9;
  margin-bottom: 1.5rem;
}

.footer-socials { display: flex; gap: 0.6rem; }

.footer-social {
  width: 34px; height: 34px;
  border-radius: 8px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  text-decoration: none;
  transition: all 0.3s;
}

.footer-social:hover { background: var(--brand); border-color: var(--brand); }

.footer-col h4 {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--brand-light);
  margin-bottom: 1.2rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.8rem;
  transition: color 0.3s;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.footer-links a:hover { color: var(--brand-light); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p { font-size: 0.7rem; color: var(--muted); }
.footer-bottom a { color: var(--brand-light); text-decoration: none; }

/* ===== REVEAL ===== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ===== GRID ===== */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  nav { padding: 0 2.5rem; }
  .section { padding: 4rem 2.5rem; }
  .page-hero { padding: 3rem 2.5rem; }
  footer { padding: 3.5rem 2.5rem 2rem; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  nav { padding: 0 1.5rem; }

  .nav-links {
    display: none;
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: rgba(10,10,15,0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.5rem 1.5rem;
    gap: 0.2rem;
    border-bottom: 1px solid var(--border);
  }

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

  .section { padding: 3rem 1.5rem; }
  .page-hero { padding: 2.5rem 1.5rem; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; gap: 2rem; }
  .form-row { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; gap: 0.8rem; text-align: center; }
}

/* ===== OVERLAY ===== */
#navOverlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 198;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  cursor: pointer;
}
#navOverlay.show { display: block; }
body.menu-open { overflow: hidden; }

/* ===== GLOBAL OVERFLOW PREVENTION ===== */
*, *::before, *::after { box-sizing: border-box; }
html { overflow-x: hidden; }
body { overflow-x: hidden; max-width: 100vw; }
img, video, iframe { max-width: 100%; height: auto; }

@media (max-width: 768px) {
  .hamburger span {
    background: #7c3aed !important;
    transition: transform 0.35s cubic-bezier(0.23,1,0.32,1),
                opacity 0.25s ease !important;
    transform-origin: center !important;
  }
  .hamburger.open span:nth-child(1) { transform: translateY(8px) rotate(45deg) !important; }
  .hamburger.open span:nth-child(2) { opacity: 0 !important; transform: scaleX(0) !important; }
  .hamburger.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg) !important; }

  #navLinks {
    position: fixed !important;
    top: 68px !important;
    left: 0 !important;
    right: 0 !important;
    background: #0f0e17 !important;
    border-bottom: 3px solid #06d6a0 !important;
    padding: 0.5rem 1.5rem 1.2rem !important;
    z-index: 200 !important;
    box-shadow: 0 16px 48px rgba(0,0,0,0.2) !important;
    max-height: calc(100vh - 68px) !important;
    overflow-y: auto !important;
    transform: translateY(-110%) !important;
    opacity: 0 !important;
    pointer-events: none !important;
    transition: transform 0.38s cubic-bezier(0.23,1,0.32,1), opacity 0.3s ease !important;
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 0 !important;
  }
  #navLinks.open {
    transform: translateY(0) !important;
    opacity: 1 !important;
    pointer-events: all !important;
    display: flex !important;
  }
  #navLinks li { border-bottom: 1px solid rgba(128,128,128,0.1); list-style: none; }
  #navLinks li:last-child { border-bottom: none; }
  #navLinks a {
    display: block !important;
    padding: 0.9rem 0.8rem !important;
    font-size: 0.95rem !important;
    font-weight: 600 !important;
    color: rgba(255,255,255,0.6) !important;
    text-decoration: none !important;
    transition: background 0.2s, color 0.2s, padding-left 0.2s !important;
    border-radius: 6px !important;
  }
  #navLinks a:hover, #navLinks a.active {
    background: rgba(6,214,160,0.08) !important;
    color: #06d6a0 !important;
    padding-left: 1.2rem !important;
  }
  section { padding-left: 1.5rem !important; padding-right: 1.5rem !important; }
  footer { padding-left: 1.5rem !important; padding-right: 1.5rem !important; }
}

@media (max-width: 480px) {
  section { padding-left: 1.2rem !important; padding-right: 1.2rem !important; }
  footer { padding-left: 1.2rem !important; padding-right: 1.2rem !important; }
  .footer-top { grid-template-columns: 1fr !important; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr !important; }
  [class*="-grid"] { grid-template-columns: 1fr !important; }
  .stats-band, .stats-bar, .stats-section { grid-template-columns: 1fr 1fr !important; }
}

/* Nav close button — hidden always on desktop, shown only in mobile menu */
.nav-close-li { display: none !important; }

@media (max-width: 768px) {
  .nav-close-li {
    display: flex !important;
    border-bottom: none !important;
    padding-top: 0.8rem;
    margin-top: 0.4rem;
    border-top: 1px solid rgba(0,0,0,0.08) !important;
  }
}