/* ===========================
   NEXTGEN — style.css
   =========================== */

/* ── CSS Variables ── */
:root {
  --bg:        #040d1a;
  --bg2:       #071628;
  --primary:   #00d4ff;
  --secondary: #0066ff;
  --accent:    #7b2ff7;
  --text:      #e0eaff;
  --text-muted:#7a96c2;
  --card-bg:   rgba(255,255,255,0.04);
  --card-border: rgba(0,212,255,0.18);
  --font-head: 'Orbitron', sans-serif;
  --font-body: 'Rajdhani', sans-serif;
  --font-mono: 'Space Mono', monospace;
  --radius:    14px;
  --transition: 0.35s cubic-bezier(.4,0,.2,1);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; }

/* ── Utilities ── */
.container      { max-width: 1200px; margin: auto; padding: 0 1.5rem; }
.section-pad    { padding: 100px 1.5rem; }
.text-center    { text-align: center; }
.section-label  {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 6px;
  color: var(--primary);
  margin-bottom: 1rem;
  text-transform: uppercase;
}
.section-title  {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 2.5rem;
  line-height: 1.2;
}
.highlight      { color: var(--primary); }
.highlight-box  {
  background: linear-gradient(135deg, var(--secondary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Buttons ── */
.btn-primary {
  display: inline-block;
  padding: 0.8rem 2rem;
  background: linear-gradient(135deg, var(--secondary), var(--accent));
  color: #fff;
  border-radius: 50px;
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1px;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.12);
  opacity: 0;
  transition: opacity 0.3s;
}
.btn-primary:hover::after { opacity: 1; }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(0,102,255,0.4); }
.btn-primary.full-width { width: 100%; text-align: center; }

.btn-outline {
  display: inline-block;
  padding: 0.8rem 2rem;
  border: 2px solid var(--primary);
  color: var(--primary);
  border-radius: 50px;
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1px;
  transition: var(--transition);
}
.btn-outline:hover {
  background: var(--primary);
  color: var(--bg);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,212,255,0.25);
}

.btn-sm {
  display: inline-block;
  padding: 0.5rem 1.2rem;
  border: 1.5px solid var(--primary);
  color: var(--primary);
  border-radius: 50px;
  font-size: 0.8rem;
  font-family: var(--font-head);
  font-weight: 600;
  transition: var(--transition);
  margin-top: 1rem;
}
.btn-sm:hover {
  background: var(--primary);
  color: var(--bg);
  transform: translateX(4px);
}

.btn-apply {
  padding: 0.6rem 1.6rem;
  background: linear-gradient(135deg, var(--secondary), var(--accent));
  color: #fff;
  border-radius: 50px;
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 1px;
  transition: var(--transition);
}
.btn-apply:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(0,102,255,0.4); }

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(4,13,26,0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0,212,255,0.1);
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(4,13,26,0.97);
  box-shadow: 0 4px 30px rgba(0,0,0,0.5);
}
.nav-container {
  max-width: 1200px;
  margin: auto;
  padding: 0 1.5rem;
  height: 72px;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.logo { display: flex; flex-direction: column; gap: 1px; }
.logo-next { font-family: var(--font-head); font-weight: 900; font-size: 1.35rem; color: #fff; letter-spacing: 2px; }
.logo-gen  { font-family: var(--font-head); font-weight: 900; font-size: 1.35rem; color: red; letter-spacing: 2px; }
.logo-sub  { font-size: medium; color: #e0eaff; letter-spacing: 2.5px; text-transform: uppercase; margin-top: 1px; }

.nav-links {
  display: flex;
  gap: 0.2rem;
  margin-left: auto;
  align-items: center;
}
.nav-links a {
  padding: 0.4rem 0.9rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: 6px;
  transition: var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 50%; right: 50%;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
  border-radius: 2px;
}
.nav-links a:hover { color: var(--primary); }
.nav-links a:hover::after { left: 10%; right: 10%; }

.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--primary);
  font-size: 1.5rem;
  cursor: pointer;
  margin-left: auto;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem;
  background: rgba(4,13,26,0.97);
  border-top: 1px solid rgba(0,212,255,0.08);
}
.mobile-menu.open { display: flex; }
.mobile-menu a { color: var(--text); font-size: 1rem; font-weight: 600; transition: color 0.2s; }
.mobile-menu a:hover { color: var(--primary); }

@media(max-width: 820px) {
  .nav-links, .btn-apply { display: none; }
  .hamburger { display: block; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 72px;
}

/* Grid background */
.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,212,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

/* Particles */
.hero-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.particle {
  position: absolute;
  width: 3px; height: 3px;
  border-radius: 50%;
  background: var(--primary);
  animation: floatUp linear infinite;
  opacity: 0;
}
@keyframes floatUp {
  0%   { transform: translateY(0) scale(1); opacity: 0; }
  10%  { opacity: 0.7; }
  90%  { opacity: 0.3; }
  100% { transform: translateY(-100vh) scale(0.3); opacity: 0; }
}

.hero-content {
  max-width: 1200px;
  margin: auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  width: 100%;
}
.hero-tag {
  display: inline-block;
  padding: 0.4rem 1.2rem;
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.25);
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
  font-family: var(--font-mono);
}
.hero-title {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 1.2rem;
}
.hero-sub {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}
.hero-btns {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.stat { text-align: center; }
.stat-num {
  font-family: var(--font-head);
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--primary);
}
.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(0,212,255,0.2);
}

/* Hero Visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 400px;
}
.hero-orb {
  width: 260px; height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,102,255,0.35) 0%, rgba(123,47,247,0.2) 50%, transparent 80%);
  animation: pulse 4s ease-in-out infinite;
  position: absolute;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50%       { transform: scale(1.1); opacity: 1; }
}

.hero-card {
  position: absolute;
  background: rgba(255,255,255,0.07);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(0,212,255,0.25);
  border-radius: var(--radius);
  padding: 0.9rem 1.2rem;
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  white-space: nowrap;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.card-icon { font-size: 1.2rem; }
.hero-card:nth-child(2) { top: 5%;  left: 0; }
.hero-card:nth-child(3) { bottom: 20%; right: 0; }
.hero-card:nth-child(4) { bottom: 5%;  left: 10%; }

@keyframes floating {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-14px); }
}
.floating      { animation: floating 3.5s ease-in-out infinite; }
.delay-float   { animation-delay: 1s; }
.delay-float-2 { animation-delay: 2s; }

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}
.scroll-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--primary);
  animation: scrollBounce 1.5s ease-in-out infinite;
}
@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50%       { transform: translateY(8px); opacity: 0.4; }
}

@media(max-width: 768px) {
  .hero-content { grid-template-columns: 1fr; gap: 2rem; }
  .hero-visual  { height: 260px; }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about { background: var(--bg2); }
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 5rem;
  align-items: center;
}
.about-desc {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 2rem;
  max-width: 520px;
}
.about-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.about-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.4rem 1rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.about-card::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle at center, rgba(0,212,255,0.08), transparent 60%);
  opacity: 0;
  transition: opacity 0.4s;
}
.about-card:hover::before { opacity: 1; }
.about-card:hover {
  border-color: var(--primary);
  transform: translateY(-5px);
  box-shadow: 0 20px 50px rgba(0,212,255,0.12);
}
.about-card-icon { font-size: 1.6rem; margin-bottom: 0.7rem; }
.about-card h3 {
  font-family: var(--font-head);
  font-size: 0.85rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
}
.about-card p { font-size: 0.82rem; color: var(--text-muted); }

/* Tech Ring */
.tech-ring {
  position: relative;
  width: 300px; height: 300px;
  margin: auto;
}
.ring {
  position: absolute;
  border-radius: 50%;
  border: 1.5px solid rgba(0,212,255,0.15);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}
.ring-1 { width: 100%; height: 100%; animation: spinRing 12s linear infinite; }
.ring-2 { width: 73%;  height: 73%;  animation: spinRing 8s linear infinite reverse; }
.ring-3 { width: 46%;  height: 46%;  animation: spinRing 5s linear infinite; border-color: rgba(123,47,247,0.3); }
@keyframes spinRing { from { transform: translate(-50%,-50%) rotate(0deg); } to { transform: translate(-50%,-50%) rotate(360deg); } }

.ring-center {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  font-family: var(--font-head);
  font-size: 1.1rem;
  color: var(--primary);
}
.orbit-dot {
  position: absolute;
  width: 38px; height: 38px;
  background: var(--bg2);
  border: 1px solid var(--card-border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  animation: orbit 10s linear infinite;
}
.dot-1 { animation-delay: 0s; }
.dot-2 { animation-delay: -2.5s; }
.dot-3 { animation-delay: -5s; }
.dot-4 { animation-delay: -7.5s; }
@keyframes orbit {
  0%   { transform: rotate(0deg)   translateX(140px) rotate(0deg); }
  100% { transform: rotate(360deg) translateX(140px) rotate(-360deg); }
}

@media(max-width: 900px) {
  .about-grid  { grid-template-columns: 1fr; }
  .about-cards { grid-template-columns: 1fr 1fr; }
  .tech-ring   { display: none; }
}
@media(max-width: 500px) {
  .about-cards { grid-template-columns: 1fr; }
}

/* ============================================================
   COURSES
   ============================================================ */
.courses { background: var(--bg); }
.courses-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
  margin-top: 1rem;
}
.course-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.8rem 1.4rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}
.course-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--secondary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--transition);
}
.course-card:hover::after  { transform: scaleX(1); }
.course-card:hover {
  border-color: rgba(0,212,255,0.4);
  transform: translateY(-8px);
  box-shadow: 0 25px 60px rgba(0,0,0,0.3);
}
.course-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  display: block;
}
.course-card h3 {
  font-family: var(--font-head);
  font-size: 0.85rem;
  color: var(--text);
  margin-bottom: 0.6rem;
  line-height: 1.3;
}
.course-card p { font-size: 0.82rem; color: var(--text-muted); }

@media(max-width: 900px) { .courses-grid { grid-template-columns: repeat(2, 1fr); } }
@media(max-width: 500px) { .courses-grid { grid-template-columns: 1fr; } }

/* ============================================================
   WHY
   ============================================================ */
.why { background: var(--bg2); }
.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 1rem;
}
.why-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 2.2rem 1.8rem;
  display: flex;
  gap: 1.4rem;
  align-items: flex-start;
  transition: var(--transition);
}
.why-card:hover {
  border-color: var(--primary);
  transform: translateY(-5px);
  box-shadow: 0 20px 50px rgba(0,212,255,0.1);
}
.why-icon { font-size: 2rem; flex-shrink: 0; }
.why-card h3 {
  font-family: var(--font-head);
  font-size: 0.9rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
}
.why-card p { font-size: 0.85rem; color: var(--text-muted); }

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

/* ============================================================
   CONTACT
   ============================================================ */
.contact { background: var(--bg); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 4rem;
  align-items: start;
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  margin-bottom: 1.8rem;
}
.contact-icon {
  font-size: 1.5rem;
  width: 48px; height: 48px;
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.contact-label { font-size: 0.75rem; color: var(--text-muted); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 2px; }
.contact-value { font-size: 0.95rem; color: var(--text); font-weight: 600; }
.contact-social { display: flex; gap: 0.8rem; margin-top: 2rem; }
.social-btn {
  padding: 0.45rem 1rem;
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: 50px;
  font-size: 0.78rem;
  color: var(--text-muted);
  transition: var(--transition);
  font-family: var(--font-mono);
}
.social-btn:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }

/* Form */
.contact-form { display: flex; flex-direction: column; gap: 0.3rem; }
.form-group {
  position: relative;
  margin-bottom: 1.2rem;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--card-bg);
  border: 1px solid rgba(0,212,255,0.15);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
  resize: none;
}
.form-group select option { background: var(--bg2); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,212,255,0.1);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }

@media(max-width: 800px) { .contact-grid { grid-template-columns: 1fr; } }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--bg2);
  border-top: 1px solid rgba(0,212,255,0.08);
  padding: 2.5rem 1.5rem;
  text-align: center;
}
.footer-inner { max-width: 1200px; margin: auto; }
.footer-logo { margin-bottom: 0.5rem; display: flex; justify-content: center; gap: 0; flex-direction: column; align-items: center; }
.footer-copy { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.5rem; }

/* ============================================================
   ANIMATIONS — Fade/Reveal
   ============================================================ */
.animate-fade-up {
  opacity: 0;
  transform: translateY(28px);
  animation: fadeUp 0.7s ease forwards;
}
.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }
.delay-3 { animation-delay: 0.45s; }
.delay-4 { animation-delay: 0.6s; }

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(35px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal.delay-1 { transition-delay: 0.12s; }
.reveal.delay-2 { transition-delay: 0.24s; }
.reveal.delay-3 { transition-delay: 0.36s; }

/* Glowing line separator */
.glow-line {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  margin: 0;
  opacity: 0.3;
}