/* ============================================================
   EduBright Academy — Main Stylesheet
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Poppins:wght@600;700;800&display=swap');

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #eff6ff;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --dark: #0f172a;
  --text: #334155;
  --muted: #64748b;
  --border: #e2e8f0;
  --bg: #f8fafc;
  --white: #ffffff;
  --success: #10b981;
  --danger: #ef4444;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(37,99,235,0.08);
  --shadow-lg: 0 12px 40px rgba(37,99,235,0.13);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:'Inter',sans-serif;color:var(--text);background:var(--bg);line-height:1.7;}
img{max-width:100%;height:auto;}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}

/* ---- Topbar ---- */
.topbar{background:var(--dark);color:#94a3b8;font-size:13px;padding:8px 0;}
.topbar .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;}
.topbar a{color:#94a3b8;transition:color .2s;}
.topbar a:hover{color:var(--accent);}

/* ---- Navbar ---- */
.navbar{background:var(--white);box-shadow:0 2px 16px rgba(0,0,0,.07);position:sticky;top:0;z-index:100;}
.navbar .container{display:flex;align-items:center;justify-content:space-between;padding:0 20px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;}
.brand img.logo{height:48px;width:auto;}
.brand-text h1{font-family:'Poppins',sans-serif;font-size:22px;font-weight:800;color:var(--primary);line-height:1.1;}
.brand-text span{font-size:11px;color:var(--muted);letter-spacing:.5px;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{padding:8px 16px;border-radius:8px;font-size:14px;font-weight:500;color:var(--text);transition:all .2s;}
.nav-links a:hover,.nav-links a.active{background:var(--primary-light);color:var(--primary);}
.nav-btn{background:var(--primary);color:var(--white)!important;border-radius:8px!important;padding:9px 20px!important;}
.nav-btn:hover{background:var(--primary-dark)!important;color:var(--white)!important;}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;}
.hamburger span{width:24px;height:2px;background:var(--dark);border-radius:2px;transition:.3s;}

/* ---- Container ---- */
.container{max-width:1200px;margin:0 auto;padding:0 20px;}

/* ---- Slider ---- */
.slider-wrap{position:relative;overflow:hidden;height:540px;background:var(--dark);}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .8s ease;display:flex;align-items:center;}
.slide.active{opacity:1;}
.slide-bg{position:absolute;inset:0;background-size:cover;background-position:center;}
.slide-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(15,23,42,.85) 0%,rgba(15,23,42,.4) 60%,transparent 100%);}
.slide-content{position:relative;z-index:2;max-width:600px;padding:0 60px;animation:slideIn .7s ease both;}
.slide-content h2{font-family:'Poppins',sans-serif;font-size:44px;font-weight:800;color:#fff;line-height:1.15;margin-bottom:16px;}
.slide-content p{font-size:17px;color:#cbd5e1;margin-bottom:32px;}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 28px;border-radius:10px;font-weight:600;font-size:15px;cursor:pointer;border:none;transition:all .2s;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 8px 20px rgba(37,99,235,.3);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--accent-dark);}
.btn-outline{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.6);}
.btn-outline:hover{background:rgba(255,255,255,.1);border-color:#fff;}
.slider-nav{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:5;}
.slider-dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.4);cursor:pointer;transition:.3s;}
.slider-dot.active{background:#fff;width:28px;border-radius:5px;}
.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:5;background:rgba(255,255,255,.15);border:none;color:#fff;width:48px;height:48px;border-radius:50%;font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(4px);transition:.2s;}
.slider-arrow:hover{background:rgba(255,255,255,.3);}
.slider-prev{left:20px;}
.slider-next{right:20px;}
@keyframes slideIn{from{opacity:0;transform:translateX(-40px)}to{opacity:1;transform:translateX(0)}}

/* ---- Section ---- */
.section{padding:80px 0;}
.section-alt{background:var(--white);}
.section-header{text-align:center;margin-bottom:56px;}
.section-header .badge{display:inline-block;background:var(--primary-light);color:var(--primary);font-size:12px;font-weight:700;letter-spacing:1px;text-transform:uppercase;padding:5px 14px;border-radius:20px;margin-bottom:12px;}
.section-header h2{font-family:'Poppins',sans-serif;font-size:36px;font-weight:800;color:var(--dark);}
.section-header p{color:var(--muted);font-size:16px;max-width:560px;margin:12px auto 0;}

/* ---- Stats ---- */
.stats-bar{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);padding:40px 0;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center;}
.stat-item h3{font-family:'Poppins',sans-serif;font-size:40px;font-weight:800;color:#fff;}
.stat-item p{color:rgba(255,255,255,.75);font-size:14px;}

/* ---- Course Cards ---- */
.courses-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:28px;}
.course-card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;}
.course-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);}
.course-thumb{height:180px;background:linear-gradient(135deg,var(--primary) 0%,#7c3aed 100%);position:relative;overflow:hidden;}
.course-thumb img{width:100%;height:100%;object-fit:cover;}
.course-thumb .level-badge{position:absolute;top:12px;right:12px;background:rgba(0,0,0,.55);color:#fff;font-size:11px;font-weight:600;padding:4px 10px;border-radius:20px;backdrop-filter:blur(4px);}
.course-thumb .course-icon{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:56px;opacity:.25;}
.course-body{padding:24px;}
.course-body h3{font-weight:700;font-size:18px;color:var(--dark);margin-bottom:8px;}
.course-body p{font-size:14px;color:var(--muted);margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.course-meta{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);border-top:1px solid var(--border);padding-top:14px;margin-top:4px;}
.course-meta span{display:flex;align-items:center;gap:5px;}

/* ---- Post Cards ---- */
.posts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:28px;}
.post-card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;}
.post-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);}
.post-thumb{height:200px;background:linear-gradient(135deg,#0ea5e9 0%,var(--primary) 100%);position:relative;overflow:hidden;}
.post-thumb img{width:100%;height:100%;object-fit:cover;}
.post-thumb .cat-badge{position:absolute;top:14px;left:14px;background:var(--accent);color:#fff;font-size:11px;font-weight:700;padding:4px 12px;border-radius:20px;}
.post-body{padding:24px;}
.post-body h3{font-weight:700;font-size:17px;color:var(--dark);margin-bottom:8px;line-height:1.4;}
.post-body p{font-size:14px;color:var(--muted);margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.post-date{font-size:12px;color:var(--muted);}
.read-more{color:var(--primary);font-weight:600;font-size:13px;display:inline-flex;align-items:center;gap:4px;transition:gap .2s;}
.read-more:hover{gap:8px;}

/* ---- CTA Banner ---- */
.cta-section{background:linear-gradient(135deg,var(--dark) 0%,#1e3a8a 100%);padding:80px 0;text-align:center;}
.cta-section h2{font-family:'Poppins',sans-serif;font-size:40px;font-weight:800;color:#fff;margin-bottom:16px;}
.cta-section p{color:#94a3b8;font-size:17px;margin-bottom:36px;}
.cta-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}

/* ---- Page Content ---- */
.page-hero{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);padding:60px 0;text-align:center;color:#fff;}
.page-hero h1{font-family:'Poppins',sans-serif;font-size:40px;font-weight:800;}
.page-hero p{color:rgba(255,255,255,.8);margin-top:8px;}
.breadcrumb{font-size:13px;margin-top:12px;color:rgba(255,255,255,.65);}
.breadcrumb a{color:rgba(255,255,255,.8);}
.page-content{padding:60px 0;}
.page-content .content-body{max-width:800px;margin:0 auto;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:48px;}
.page-content .content-body h2{font-family:'Poppins',sans-serif;font-size:28px;font-weight:700;color:var(--dark);margin:28px 0 12px;}
.page-content .content-body h3{font-size:20px;font-weight:700;color:var(--dark);margin:20px 0 8px;}
.page-content .content-body p{margin-bottom:16px;color:var(--text);}
.page-content .content-body ul,.page-content .content-body ol{padding-left:24px;margin-bottom:16px;}
.page-content .content-body li{margin-bottom:6px;}

/* ---- Footer ---- */
.footer{background:var(--dark);color:#94a3b8;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand h2{font-family:'Poppins',sans-serif;font-size:22px;font-weight:800;color:#fff;margin-bottom:8px;}
.footer-brand p{font-size:14px;line-height:1.7;}
.footer h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:20px;}
.footer ul li{margin-bottom:10px;}
.footer ul a{color:#94a3b8;font-size:14px;transition:color .2s;}
.footer ul a:hover{color:var(--accent);}
.footer-contact li{font-size:14px;display:flex;gap:10px;align-items:flex-start;margin-bottom:10px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px;text-align:center;font-size:13px;}

/* ---- Auth Forms ---- */
.auth-page{min-height:100vh;background:linear-gradient(135deg,var(--primary) 0%,#7c3aed 100%);display:flex;align-items:center;justify-content:center;padding:40px 20px;}
.auth-card{background:#fff;border-radius:20px;box-shadow:0 24px 60px rgba(0,0,0,.2);padding:48px;width:100%;max-width:440px;}
.auth-card .auth-logo{text-align:center;margin-bottom:32px;}
.auth-card .auth-logo h1{font-family:'Poppins',sans-serif;font-size:24px;font-weight:800;color:var(--primary);}
.auth-card h2{font-size:22px;font-weight:700;color:var(--dark);margin-bottom:6px;}
.auth-card p.sub{color:var(--muted);font-size:14px;margin-bottom:28px;}
.form-group{margin-bottom:20px;}
.form-group label{display:block;font-size:13px;font-weight:600;color:var(--dark);margin-bottom:6px;}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 16px;border:2px solid var(--border);border-radius:10px;font-family:inherit;font-size:15px;transition:border-color .2s;background:#fff;color:var(--dark);}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);}
.form-group textarea{resize:vertical;min-height:120px;}
.btn-full{width:100%;justify-content:center;}
.auth-footer{text-align:center;margin-top:24px;font-size:14px;color:var(--muted);}
.auth-footer a{color:var(--primary);font-weight:600;}

/* ---- Alert ---- */
.alert{padding:14px 18px;border-radius:10px;margin-bottom:20px;font-size:14px;font-weight:500;}
.alert-success{background:#d1fae5;color:#065f46;border:1px solid #a7f3d0;}
.alert-danger{background:#fee2e2;color:#991b1b;border:1px solid #fecaca;}
.alert-info{background:#dbeafe;color:#1e40af;border:1px solid #bfdbfe;}

/* ---- Responsive ---- */
@media(max-width:900px){
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .slide-content h2{font-size:32px;}
  .slide-content{padding:0 40px;}
}
@media(max-width:768px){
  .nav-links{display:none;flex-direction:column;position:absolute;top:72px;left:0;right:0;background:#fff;box-shadow:0 8px 24px rgba(0,0,0,.1);padding:20px;}
  .nav-links.open{display:flex;}
  .hamburger{display:flex;}
  .slider-wrap{height:420px;}
  .slide-content h2{font-size:26px;}
  .section-header h2{font-size:28px;}
}
@media(max-width:480px){
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr;}
  .slider-wrap{height:360px;}
  .slide-content{padding:0 24px;}
  .slide-content h2{font-size:22px;}
}