/* ===== UNNOTI Main Styles ===== */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600;700&family=Hind+Siliguri:wght@400;500;600;700&family=Noto+Sans+Devanagari:wght@400;500;600;700&display=swap');

:root {
  --primary: #2563EB; --secondary: #0EA5E9; --accent: #14B8A6;
  --dark: #0F172A; --light: #F8FAFC; --gray-100: #F1F5F9;
  --gray-200: #E2E8F0; --gray-300: #CBD5E1; --gray-400: #94A3B8;
  --gray-500: #64748B; --gray-600: #475569; --gray-700: #334155;
  --gray-800: #1E293B; --gray-900: #0F172A;
  --gradient: linear-gradient(135deg, #2563EB, #0EA5E9, #14B8A6);
  --gradient-2: linear-gradient(135deg, #2563EB 0%, #7C3AED 100%);
  --glass-bg: rgba(255,255,255,0.08); --glass-border: rgba(255,255,255,0.12);
  --radius: 16px; --radius-sm: 8px; --radius-lg: 24px; --radius-xl: 32px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08); --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12); --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
  --font-primary: 'Poppins', sans-serif; --font-secondary: 'Inter', sans-serif;
  --font-bangla: 'Hind Siliguri', sans-serif; --font-hindi: 'Noto Sans Devanagari', sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-primary); color: var(--dark); background: var(--light);
  line-height: 1.7; overflow-x: hidden; -webkit-font-smoothing: antialiased;
}

[lang="bn"] body, [lang="bn"] * { font-family: var(--font-bangla) !important; }
[lang="hi"] body, [lang="hi"] * { font-family: var(--font-hindi) !important; }

h1,h2,h3,h4,h5,h6 { font-family: var(--font-primary); font-weight: 700; line-height: 1.2; color: var(--dark); }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 3vw, 1.75rem); }
p { font-family: var(--font-secondary); color: var(--gray-600); }
a { text-decoration: none; color: var(--primary); transition: var(--transition); }
a:hover { color: var(--secondary); }
img { max-width: 100%; height: auto; }

/* --- Navbar --- */
.navbar {
  background: rgba(255,255,255,0.85); backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--gray-200); padding: 12px 0;
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000; transition: var(--transition);
}
.navbar.scrolled { background: rgba(255,255,255,0.95); box-shadow: var(--shadow); padding: 8px 0; }
.navbar-brand { font-weight: 800; font-size: 40px !important; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.nav-link { font-weight: 500; color: var(--gray-700) !important; padding: 8px 16px !important; border-radius: var(--radius-sm); transition: var(--transition); position: relative; }
.nav-link:hover, .nav-link.active { color: var(--primary) !important; background: rgba(37,99,235,0.06); }
.nav-link.active::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; background: var(--primary); border-radius: 2px; }

/* --- Buttons --- */
.btn-primary-gradient {
  background: var(--gradient); color: #fff; border: none; padding: 12px 32px;
  border-radius: 50px; font-weight: 600; font-size: 1rem; cursor: pointer;
  transition: var(--transition); position: relative; overflow: hidden;
}
.btn-primary-gradient:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(37,99,235,0.4); color: #fff; }
.btn-primary-gradient::after {
  content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
  opacity: 0; transition: var(--transition);
}
.btn-primary-gradient:hover::after { opacity: 1; }

.btn-outline-gradient {
  background: transparent; color: var(--primary); border: 2px solid var(--primary);
  padding: 10px 30px; border-radius: 50px; font-weight: 600; transition: var(--transition);
}
.btn-outline-gradient:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

.btn-glass {
  background: var(--glass-bg); backdrop-filter: blur(10px); color: #fff;
  border: 1px solid var(--glass-border); padding: 12px 32px; border-radius: 50px;
  font-weight: 600; transition: var(--transition);
}
.btn-glass:hover { background: rgba(255,255,255,0.15); transform: translateY(-2px); color: #fff; }

/* --- Hero Section --- */
.hero-section {
  min-height: 100vh; display: flex; align-items: center; position: relative;
  overflow: hidden; padding-top: 80px;
  background: linear-gradient(135deg, #0F172A 0%, #1E293B 50%, #0F172A 100%);
}
.hero-section::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 50%, rgba(37,99,235,0.15) 0%, transparent 50%),
              radial-gradient(circle at 70% 50%, rgba(14,165,233,0.1) 0%, transparent 50%),
              radial-gradient(circle at 50% 80%, rgba(20,184,166,0.08) 0%, transparent 50%);
}
.hero-content { position: relative; z-index: 2; }
.hero-section h1 { color: #fff; margin-bottom: 20px; }
.hero-section h1 span { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-section p { color: var(--gray-400); font-size: 1.15rem; max-width: 600px; margin-bottom: 32px; }
.cta-buttons { display: flex; gap: 16px; flex-wrap: wrap; }

/* Hero floating cards */
.floating-card {
  position: absolute; background: var(--glass-bg); backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border); border-radius: var(--radius);
  padding: 16px 24px; color: #fff; z-index: 2;
}
.floating-card i { font-size: 1.5rem; margin-right: 8px; }
.floating-card .fc-number { font-size: 1.5rem; font-weight: 700; display: block; }
.floating-card .fc-label { font-size: 0.8rem; color: var(--gray-400); }

/* Hero animated blobs */
.hero-blob {
  position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.4;
  animation: morph 8s ease-in-out infinite;
}
.hero-blob-1 { width: 400px; height: 400px; background: var(--primary); top: 10%; right: 10%; }
.hero-blob-2 { width: 300px; height: 300px; background: var(--secondary); bottom: 20%; left: 5%; animation-delay: 2s; }
.hero-blob-3 { width: 200px; height: 200px; background: var(--accent); top: 60%; right: 30%; animation-delay: 4s; }

/* --- Section Common --- */
section { padding: 80px 0; position: relative; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-title { margin-bottom: 16px; }
.section-title span { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.section-subtitle { color: var(--gray-500); font-size: 1.1rem; max-width: 600px; margin: 0 auto; }
.section-badge {
  display: inline-block; background: rgba(37,99,235,0.1); color: var(--primary);
  padding: 6px 20px; border-radius: 50px; font-size: 0.85rem; font-weight: 600;
  margin-bottom: 12px; letter-spacing: 0.5px;
}

/* --- Glass Card --- */
.glass-card {
  background: rgba(255,255,255,0.7); backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.3); border-radius: var(--radius-lg);
  padding: 32px; transition: var(--transition);
}
.glass-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

/* --- Stats Section --- */
.stats-section { background: var(--dark); padding: 60px 0; position: relative; overflow: hidden; }
.stats-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 32px; }
.stat-card {
  text-align: center; padding: 32px; border-radius: var(--radius); position: relative;
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08);
}
.stat-card .stat-number { font-size: 2.5rem; font-weight: 800; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.stat-card .stat-label { color: var(--gray-400); font-size: 0.95rem; margin-top: 4px; }
.stat-card .stat-icon { font-size: 2rem; margin-bottom: 12px; color: var(--secondary); }

/* --- Course Cards --- */
.course-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 30px; }
.course-card {
  background: #fff; border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow); transition: var(--transition); border: 1px solid var(--gray-200);
}
.course-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-xl); }
.course-card-img {
  height: 200px; overflow: hidden; position: relative;
  background: var(--gradient); display: flex; align-items: center; justify-content: center;
}
.course-card-img i { font-size: 4rem; color: rgba(255,255,255,0.3); }
.course-card-badge {
  position: absolute; top: 16px; left: 16px; background: rgba(255,255,255,0.2);
  backdrop-filter: blur(10px); color: #fff; padding: 4px 14px; border-radius: 50px;
  font-size: 0.75rem; font-weight: 600;
}
.course-card-body { padding: 24px; }
.course-card-body h4 { font-size: 1.15rem; margin-bottom: 8px; }
.course-card-body p { font-size: 0.9rem; color: var(--gray-500); margin-bottom: 16px; }
.course-meta { display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem; color: var(--gray-400); }
.course-meta i { margin-right: 4px; }

/* --- Bento Grid --- */
.bento-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.bento-item {
  background: #fff; border-radius: var(--radius-lg); padding: 32px;
  border: 1px solid var(--gray-200); transition: var(--transition); position: relative; overflow: hidden;
}
.bento-item:hover { border-color: var(--primary); box-shadow: var(--shadow-lg); }
.bento-item.span-2 { grid-column: span 2; }
.bento-item.span-row-2 { grid-row: span 2; }
.bento-item-icon {
  width: 56px; height: 56px; border-radius: var(--radius); display: flex;
  align-items: center; justify-content: center; font-size: 1.5rem; margin-bottom: 16px;
}
.bento-item h4 { font-size: 1.1rem; margin-bottom: 8px; }
.bento-item p { font-size: 0.9rem; color: var(--gray-500); }

/* --- Timeline --- */
.timeline { position: relative; padding: 20px 0; }
.timeline::before { content:''; position: absolute; left: 50%; top: 0; bottom: 0; width: 3px; background: var(--gradient); transform: translateX(-50%); border-radius: 2px; }
.timeline-item { display: flex; justify-content: flex-end; padding: 0 30px 40px; width: 50%; position: relative; }
.timeline-item:nth-child(even) { align-self: flex-end; justify-content: flex-start; margin-left: 50%; }
.timeline-dot {
  position: absolute; width: 16px; height: 16px; background: var(--primary);
  border: 3px solid #fff; border-radius: 50%; z-index: 2; box-shadow: 0 0 0 4px rgba(37,99,235,0.2);
}
.timeline-item:nth-child(odd) .timeline-dot { right: -8px; }
.timeline-item:nth-child(even) .timeline-dot { left: -8px; }
.timeline-content {
  background: #fff; padding: 24px; border-radius: var(--radius); box-shadow: var(--shadow);
  border: 1px solid var(--gray-200); max-width: 400px;
}
.timeline-content h4 { color: var(--primary); margin-bottom: 8px; }

/* --- Testimonials --- */
.testimonial-card {
  background: #fff; border-radius: var(--radius-lg); padding: 32px;
  box-shadow: var(--shadow); border: 1px solid var(--gray-200); text-align: center;
}
.testimonial-card .avatar {
  width: 72px; height: 72px; border-radius: 50%; margin: 0 auto 16px;
  background: var(--gradient); display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1.5rem; font-weight: 700;
}
.testimonial-card .stars { color: #F59E0B; margin-bottom: 12px; }
.testimonial-card blockquote { font-style: italic; color: var(--gray-600); margin-bottom: 16px; font-size: 0.95rem; line-height: 1.6; }
.testimonial-card .name { font-weight: 600; color: var(--dark); }
.testimonial-card .role { font-size: 0.85rem; color: var(--gray-400); }

/* --- FAQ Accordion --- */
.faq-accordion .accordion-item { border: 1px solid var(--gray-200); border-radius: var(--radius) !important; margin-bottom: 12px; overflow: hidden; }
.faq-accordion .accordion-button { font-weight: 600; font-size: 1rem; padding: 20px 24px; background: #fff; color: var(--dark); }
.faq-accordion .accordion-button:not(.collapsed) { background: rgba(37,99,235,0.05); color: var(--primary); box-shadow: none; }
.faq-accordion .accordion-button::after { background-size: 16px; }
.faq-accordion .accordion-body { padding: 0 24px 20px; color: var(--gray-600); line-height: 1.8; }

/* --- Footer --- */
.site-footer {
  background: var(--dark); color: var(--gray-400); padding: 80px 0 0; position: relative;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand { margin-bottom: 16px; }
.footer-brand h3 { color: #fff; margin-bottom: 8px; }
.footer-brand p { font-size: 0.9rem; }
.footer-heading { color: #fff; font-size: 1rem; font-weight: 600; margin-bottom: 20px; }
.footer-links { list-style: none; padding: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: var(--gray-400); font-size: 0.9rem; transition: var(--transition); }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-social { display: flex; gap: 12px; margin-top: 16px; }
.footer-social a {
  width: 40px; height: 40px; border-radius: 50%; background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center; color: var(--gray-400);
  transition: var(--transition); font-size: 1rem;
}
.footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }
.footer-newsletter { margin-top: 16px; }
.footer-newsletter .input-group { display: flex; gap: 8px; }
.footer-newsletter input {
  flex: 1; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 50px; padding: 10px 20px; color: #fff; font-size: 0.9rem;
}
.footer-newsletter input::placeholder { color: var(--gray-500); }
.footer-newsletter button {
  background: var(--primary); color: #fff; border: none; border-radius: 50px;
  padding: 10px 24px; font-weight: 600; cursor: pointer; transition: var(--transition);
}
.footer-newsletter button:hover { background: var(--secondary); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding: 24px 0; margin-top: 40px; border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 0.85rem;
}

/* --- Back to Top --- */
.back-to-top {
  position: fixed; bottom: 24px; right: 24px; width: 48px; height: 48px;
  background: var(--gradient); color: #fff; border: none; border-radius: 50%;
  font-size: 1.2rem; cursor: pointer; opacity: 0; visibility: hidden;
  transition: var(--transition); z-index: 999; box-shadow: var(--shadow-lg);
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { transform: translateY(-4px); }

/* --- Language Switcher --- */
.language-switcher {
  display: flex; align-items: center; gap: 4px; background: rgba(37,99,235,0.06);
  border-radius: 50px; padding: 4px;
}
.language-switcher button {
  background: none; border: none; padding: 4px 12px; border-radius: 50px;
  font-size: 0.8rem; font-weight: 500; cursor: pointer; color: var(--gray-500);
  transition: var(--transition);
}
.language-switcher button.active { background: var(--primary); color: #fff; }

/* --- Dashboard --- */
.dashboard-sidebar {
  width: 260px; background: #fff; height: 100vh; position: fixed; left: 0; top: 0;
  border-right: 1px solid var(--gray-200); padding: 24px 0; z-index: 100; overflow-y: auto;
}
.dashboard-content { margin-left: 260px; padding: 24px; background: var(--gray-100); min-height: 100vh; }
.dash-card {
  background: #fff; border-radius: var(--radius); padding: 24px;
  box-shadow: var(--shadow-sm); border: 1px solid var(--gray-200);
}
.progress-ring { width: 120px; height: 120px; }

/* --- Contact Form --- */
.contact-form .form-control {
  border-radius: var(--radius); border: 2px solid var(--gray-200);
  padding: 14px 20px; font-size: 0.95rem; transition: var(--transition);
}
.contact-form .form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(37,99,235,0.1); }

/* --- Blog Cards --- */
.blog-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 30px; }
.blog-card { background: #fff; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); transition: var(--transition); border: 1px solid var(--gray-200); }
.blog-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-xl); }
.blog-card-img { height: 200px; background: var(--gradient); position: relative; }
.blog-card-body { padding: 24px; }
.blog-card-body h4 { font-size: 1.1rem; margin-bottom: 8px; }
.blog-card-meta { font-size: 0.8rem; color: var(--gray-400); margin-bottom: 12px; }

/* --- Career Cards --- */
.career-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.career-card {
  background: #fff; border-radius: var(--radius-lg); padding: 32px;
  border: 1px solid var(--gray-200); transition: var(--transition); text-align: center;
}
.career-card:hover { border-color: var(--primary); box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.career-card-icon {
  width: 64px; height: 64px; margin: 0 auto 16px; border-radius: var(--radius);
  background: rgba(37,99,235,0.1); display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; color: var(--primary);
}

/* --- Certificate --- */
.certificate-card {
  background: linear-gradient(135deg, #fff 0%, var(--gray-100) 100%);
  border: 2px solid var(--gray-200); border-radius: var(--radius-lg); padding: 40px;
  text-align: center; position: relative; overflow: hidden;
}
.certificate-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: var(--gradient);
}
.certificate-badge {
  width: 80px; height: 80px; background: var(--gradient); border-radius: 50%;
  display: flex; align-items: center; justify-content: center; margin: 0 auto 20px;
  color: #fff; font-size: 2rem;
}

/* --- Misc Utilities --- */
.gradient-text { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.bg-gradient { background: var(--gradient); }
.text-gradient { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.glassmorphism { background: var(--glass-bg); backdrop-filter: blur(16px); border: 1px solid var(--glass-border); }
.card-tilt { transition: transform 0.3s ease; }
.glow-border { box-shadow: 0 0 20px rgba(37,99,235,0.2); }
.mouse-follower { width: 20px; height: 20px; border-radius: 50%; background: rgba(37,99,235,0.3); position: fixed; pointer-events: none; z-index: 9999; transition: transform 0.15s ease; }