/* EduPlatform LMS - Stylesheet */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--radius:12px;--radius-sm:8px;--radius-lg:20px;--shadow:0 4px 24px rgba(0,0,0,.06);--shadow-lg:0 12px 48px rgba(0,0,0,.1);--shadow-xl:0 24px 64px rgba(0,0,0,.14);--glass:rgba(255,255,255,.72);--transition:all .3s cubic-bezier(.4,0,.2,1);--gradient:linear-gradient(135deg,var(--primary),var(--secondary));--bg:#f8fafc;--surface:#fff;--border:#e2e8f0;--text:#1e293b;--text-muted:#64748b;--text-light:#94a3b8}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font-body);color:var(--text);background:var(--bg);line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:var(--transition)}
ul{list-style:none}
h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);line-height:1.3;font-weight:700;color:var(--dark)}
.container{max-width:1280px;margin:0 auto;padding:0 24px}
.main-content{overflow-x:hidden}

/* Announcement */
.announcement-bar{color:#fff;text-align:center;padding:10px 0;font-size:.875rem;font-weight:500;position:relative}
.announcement-bar .container{display:flex;align-items:center;justify-content:center;gap:16px}
.announcement-close{background:none;border:none;color:rgba(255,255,255,.8);cursor:pointer;font-size:1rem;position:absolute;right:16px}

/* Header */
.main-header{position:sticky;top:0;z-index:99;background:var(--glass);backdrop-filter:blur(20px);border-bottom:1px solid rgba(0,0,0,.06)}
.main-header.scrolled{background:rgba(255,255,255,.96);box-shadow:0 2px 20px rgba(0,0,0,.06)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.25rem;color:var(--dark);font-family:var(--font-heading)}
.logo img{height:38px;width:auto}
.main-nav{display:flex;align-items:center;gap:4px;flex:1;justify-content:center}
.nav-link{padding:8px 16px;border-radius:var(--radius-sm);font-weight:500;font-size:.9rem;color:var(--text-muted);position:relative}
.nav-link:hover,.nav-link.active{color:var(--primary);background:rgba(var(--primary-rgb),.06)}
.header-actions{display:flex;align-items:center;gap:8px}
.btn-icon{width:40px;height:40px;border-radius:50%;border:none;background:transparent;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:1.1rem}
.btn-icon:hover{background:rgba(var(--primary-rgb),.08);color:var(--primary)}
.btn-lang{width:36px;height:36px;border-radius:50%;background:rgba(var(--primary-rgb),.08);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.8rem;color:var(--primary)}
.btn-lang:hover{background:var(--primary);color:#fff}
.nav-dropdown{position:relative}
.nav-dropdown .fa-chevron-down{font-size:.6rem;margin-left:4px}
.dropdown-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(8px);opacity:0;visibility:hidden;pointer-events:none;transition:var(--transition);z-index:50}
.nav-dropdown:hover .dropdown-menu{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
.mega-menu{background:var(--surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);padding:24px;min-width:520px;border:1px solid var(--border)}
.mega-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.mega-item{display:flex;align-items:flex-start;gap:12px;padding:12px;border-radius:var(--radius-sm)}
.mega-item:hover{background:rgba(var(--primary-rgb),.04)}
.mega-item i{width:40px;height:40px;border-radius:10px;background:rgba(var(--primary-rgb),.1);display:flex;align-items:center;justify-content:center;color:var(--primary);flex-shrink:0}
.mega-item strong{display:block;font-size:.9rem;margin-bottom:2px}
.mega-item small{color:var(--text-muted);font-size:.78rem}
.user-menu-wrap{position:relative}
.user-avatar-btn{background:none;border:none;cursor:pointer;padding:0}
.avatar-circle{width:38px;height:38px;border-radius:50%;background:var(--gradient);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem}
.user-dropdown{position:absolute;right:0;top:calc(100% + 8px);background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-xl);border:1px solid var(--border);min-width:240px;opacity:0;visibility:hidden;transform:translateY(8px);transition:var(--transition);overflow:hidden}
.user-dropdown.show{opacity:1;visibility:visible;transform:translateY(0)}
.user-dropdown-header{padding:16px;border-bottom:1px solid var(--border)}
.user-dropdown-header strong{display:block;font-size:.9rem}
.user-dropdown-header small{color:var(--text-muted);font-size:.8rem}
.user-dropdown a{display:flex;align-items:center;gap:10px;padding:10px 16px;font-size:.88rem;color:var(--text-muted)}
.user-dropdown a:hover{background:rgba(var(--primary-rgb),.04);color:var(--primary)}
.user-dropdown hr{border:none;border-top:1px solid var(--border);margin:4px 0}
.text-danger{color:var(--danger) !important}
.mobile-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.mobile-toggle span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:var(--transition)}

/* Search overlay */
.search-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(8px);z-index:200;display:flex;align-items:flex-start;justify-content:center;padding-top:15vh;opacity:0;visibility:hidden;transition:var(--transition)}
.search-overlay.active{opacity:1;visibility:visible}
.search-overlay-inner{width:90%;max-width:640px;position:relative}
.search-close{position:absolute;right:-8px;top:-48px;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}
.search-form-overlay{display:flex;background:var(--surface);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-xl)}
.search-form-overlay input{flex:1;border:none;padding:20px 24px;font-size:1.1rem;font-family:var(--font-body);outline:none}
.search-form-overlay button{padding:0 24px;border:none;background:var(--primary);color:#fff;font-size:1.2rem;cursor:pointer}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:var(--radius);font-weight:600;font-size:.9rem;border:2px solid transparent;cursor:pointer;font-family:var(--font-body);white-space:nowrap;transition:var(--transition)}
.btn-sm{padding:8px 18px;font-size:.82rem;border-radius:var(--radius-sm)}
.btn-lg{padding:16px 36px;font-size:1rem}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-primary:hover{background:var(--dark);border-color:var(--dark);transform:translateY(-2px);box-shadow:0 8px 24px rgba(var(--primary-rgb),.3)}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-white{background:#fff;color:var(--dark);border-color:#fff}
.btn-white:hover{background:rgba(255,255,255,.9);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--text-muted);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}

/* Hero banner */
.hero-banner{position:relative;width:100%;overflow:hidden;background:var(--dark)}
.hero-slider{position:relative;width:100%;height:0;padding-bottom:42%}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity .8s ease;z-index:1}
.hero-slide.active{opacity:1;z-index:2}
.hero-banner-img{width:100%;height:100%;object-fit:cover;object-position:center;background:var(--dark);display:block}
.hero-banner-fallback{width:100%;height:100%;background:linear-gradient(135deg,var(--primary),var(--secondary))}
.hero-banner-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.7) 0%,rgba(0,0,0,.25) 45%,transparent 100%);display:flex;align-items:flex-end;z-index:3;padding-bottom:48px}
.hero-banner-overlay .container{color:#fff;max-width:900px}
.hero-banner-overlay h1{font-size:2.8rem;font-weight:800;color:#fff;margin-bottom:12px;text-shadow:0 2px 16px rgba(0,0,0,.4);line-height:1.18}
.hero-banner-overlay p{font-size:1.15rem;color:rgba(255,255,255,.88);margin-bottom:22px;text-shadow:0 1px 8px rgba(0,0,0,.3);max-width:600px}
.hero-banner .hero-buttons{display:flex;gap:12px;flex-wrap:wrap}
.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:10;width:48px;height:48px;border-radius:50%;border:none;background:rgba(255,255,255,.15);backdrop-filter:blur(8px);color:#fff;font-size:1.1rem;cursor:pointer;display:flex;align-items:center;justify-content:center}
.slider-arrow:hover{background:rgba(255,255,255,.3)}
.slider-prev{left:20px}.slider-next{right:20px}
.slider-dots{position:absolute;bottom:16px;left:50%;transform:translateX(-50%);z-index:10;display:flex;gap:8px}
.slider-dot{width:12px;height:12px;border-radius:50%;border:2px solid rgba(255,255,255,.5);background:transparent;cursor:pointer;padding:0;transition:var(--transition)}
.slider-dot.active{background:#fff;border-color:#fff;transform:scale(1.2)}
.hero-video-banner .hero-banner-media{position:relative;width:100%;height:0;padding-bottom:42%}
.hero-video-banner .hero-banner-media .hero-banner-img{position:absolute;inset:0}
.hero-play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:5;width:80px;height:80px;border-radius:50%;background:rgba(255,255,255,.92);border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:var(--primary);box-shadow:0 8px 32px rgba(0,0,0,.3)}
.hero-play-btn:hover{transform:translate(-50%,-50%) scale(1.1);background:#fff}
.hero-video-banner .hero-banner-overlay{position:absolute;inset:0}
.video-modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:500;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:var(--transition);padding:24px}
.video-modal-overlay.active{opacity:1;visibility:visible}
.video-modal-inner{width:100%;max-width:900px;position:relative}
.video-modal-close{position:absolute;top:-40px;right:0;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}
.video-modal-frame{width:100%;aspect-ratio:16/9;background:#000;border-radius:12px;overflow:hidden}
.video-modal-frame iframe,.video-modal-frame video{width:100%;height:100%;border:none}

/* Sections */
.section{padding:80px 0}
.section-gray{background:#f1f5f9}
.section-header{text-align:center;margin-bottom:48px}
.section-header .badge{display:inline-flex;align-items:center;gap:6px;background:rgba(var(--primary-rgb),.08);color:var(--primary);padding:6px 16px;border-radius:50px;font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:1px;margin-bottom:12px}
.section-header h2{font-size:2.4rem;font-weight:800;margin-bottom:12px}
.section-header p{color:var(--text-muted);font-size:1.05rem;max-width:600px;margin:0 auto}

/* Course cards */
.courses-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.course-card{background:var(--surface);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);transition:var(--transition);position:relative}
.course-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-xl);border-color:transparent}
.course-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,rgba(var(--primary-rgb),.1),rgba(14,165,233,.1))}
.course-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.course-card:hover .course-thumb img{transform:scale(1.06)}
.course-thumb-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.4),transparent);opacity:0;transition:var(--transition);display:flex;align-items:center;justify-content:center}
.course-card:hover .course-thumb-overlay{opacity:1}
.course-badge{position:absolute;top:12px;left:12px;z-index:2;display:flex;gap:6px}
.badge-tag{padding:4px 12px;border-radius:50px;font-size:.72rem;font-weight:700;text-transform:uppercase}
.badge-bestseller{background:var(--accent);color:#fff}
.badge-free{background:var(--secondary);color:#fff}
.course-wishlist{position:absolute;top:12px;right:12px;z-index:2;width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.85);border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text-muted);backdrop-filter:blur(4px)}
.course-wishlist:hover,.course-wishlist.active{color:var(--danger);background:#fff}
.course-body{padding:20px}
.course-meta{display:flex;align-items:center;gap:8px;margin-bottom:10px}
.course-category{font-size:.75rem;font-weight:600;color:var(--primary);text-transform:uppercase}
.course-level{font-size:.72rem;padding:2px 8px;border-radius:4px;background:rgba(var(--primary-rgb),.06);color:var(--primary)}
.course-card h3{font-size:1.05rem;font-weight:700;margin-bottom:8px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.course-card h3 a:hover{color:var(--primary)}
.course-excerpt{font-size:.85rem;color:var(--text-muted);margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.course-instructor{display:flex;align-items:center;gap:8px;margin-bottom:14px}
.instructor-avatar{width:28px;height:28px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;color:#fff;font-size:.7rem;font-weight:700}
.instructor-name{font-size:.82rem;color:var(--text-muted)}
.course-stats{display:flex;align-items:center;gap:14px;font-size:.8rem;color:var(--text-muted);padding-top:14px;border-top:1px solid var(--border)}
.course-stats i{color:var(--accent);font-size:.75rem}
.course-rating .stars{color:var(--accent)}
.course-footer{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-top:1px solid var(--border)}
.course-price{font-weight:800;font-size:1.15rem;color:var(--primary);font-family:var(--font-heading)}
.course-price .original{text-decoration:line-through;color:var(--text-light);font-size:.85rem;font-weight:400;margin-left:6px}
.course-price .free-label{color:var(--success)}
.enroll-btn{padding:8px 20px;border-radius:var(--radius-sm);background:var(--primary);color:#fff;border:none;font-weight:600;font-size:.82rem;cursor:pointer}
.enroll-btn:hover{background:var(--dark)}

/* Categories */
.categories-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}
.category-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px 20px;text-align:center;transition:var(--transition);position:relative;overflow:hidden}
.category-card::before{content:'';position:absolute;inset:0;background:var(--gradient);opacity:0;transition:var(--transition)}
.category-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.category-card:hover::before{opacity:1}
.category-card>*{position:relative;z-index:1}
.category-card:hover *{color:#fff !important}
.category-icon{width:56px;height:56px;margin:0 auto 14px;border-radius:14px;background:rgba(var(--primary-rgb),.08);display:flex;align-items:center;justify-content:center;font-size:1.4rem;color:var(--primary)}
.category-card h4{font-size:.95rem;font-weight:700;margin-bottom:4px}
.category-card p{font-size:.78rem;color:var(--text-muted)}

/* Stats */
.stats-section{padding:60px 0;background:var(--gradient)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-item{text-align:center;padding:20px;color:#fff}
.stat-number{font-size:2.8rem;font-weight:800;font-family:var(--font-heading);display:block;margin-bottom:4px}
.stat-label{font-size:.88rem;opacity:.85;text-transform:uppercase;letter-spacing:1px}

/* Testimonials */
.testimonials-slider{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px}
.testimonial-card{background:var(--surface);border-radius:var(--radius-lg);padding:32px;border:1px solid var(--border);position:relative;transition:var(--transition)}
.testimonial-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.testimonial-stars{color:var(--accent);font-size:.85rem;margin-bottom:16px}
.testimonial-text{font-size:.95rem;line-height:1.8;margin-bottom:20px;font-style:italic}
.testimonial-author{display:flex;align-items:center;gap:12px}
.testimonial-avatar{width:48px;height:48px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700}
.testimonial-info strong{display:block;font-size:.9rem}
.testimonial-info small{color:var(--text-muted);font-size:.8rem}

/* FAQ */
.faq-list{max-width:780px;margin:0 auto;display:flex;flex-direction:column;gap:10px}
.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.faq-item.active{border-color:var(--primary)}
.faq-question{width:100%;text-align:left;padding:18px 24px;font-size:.95rem;font-weight:600;border:none;background:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:12px;font-family:var(--font-body);color:var(--text)}
.faq-question i{transition:transform .3s;color:var(--text-light);font-size:.85rem}
.faq-item.active .faq-question i{transform:rotate(180deg);color:var(--primary)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-answer-inner{padding:0 24px 18px;font-size:.9rem;color:var(--text-muted);line-height:1.8}

/* CTA */
.cta-section{padding:80px 0;background:var(--dark);text-align:center;position:relative;overflow:hidden}
.cta-section::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at center,rgba(var(--primary-rgb),.15),transparent 70%)}
.cta-section h2{font-size:2.5rem;font-weight:800;color:#fff;margin-bottom:16px;position:relative;z-index:1}
.cta-section p{color:rgba(255,255,255,.6);font-size:1.1rem;margin-bottom:32px;max-width:600px;margin-left:auto;margin-right:auto;position:relative;z-index:1}
.cta-buttons{display:flex;gap:12px;justify-content:center;position:relative;z-index:1}

/* Footer */
.main-footer{position:relative;color:#fff}
.footer-wave{color:var(--dark);margin-bottom:-2px}
.footer-wave svg{display:block;width:100%;height:80px}
.footer-body{background:var(--dark);padding:60px 0 40px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{color:rgba(255,255,255,.5);font-size:.88rem;margin:16px 0 20px}
.social-links{display:flex;gap:10px}
.social-links a{width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.06);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.5)}
.social-links a:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.footer-col h4{font-size:.9rem;font-weight:700;margin-bottom:16px;color:#fff}
.footer-col ul li{margin-bottom:8px}
.footer-col ul li a{color:rgba(255,255,255,.5);font-size:.85rem}
.footer-col ul li a:hover{color:#fff}
.contact-info li{display:flex;align-items:flex-start;gap:10px;color:rgba(255,255,255,.5);font-size:.85rem;margin-bottom:8px}
.contact-info li i{color:var(--primary);margin-top:4px}
.footer-bottom{background:rgba(0,0,0,.2);padding:20px 0;text-align:center}
.footer-bottom p{color:rgba(255,255,255,.4);font-size:.82rem}

/* WhatsApp sticky */
.whatsapp-sticky{position:fixed;bottom:24px;left:24px;z-index:95;width:56px;height:56px;border-radius:50%;background:#25d366;color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.7rem;box-shadow:0 4px 20px rgba(37,211,102,.4);transition:var(--transition)}
.whatsapp-sticky:hover{transform:scale(1.1)}
.whatsapp-sticky .wa-tooltip{position:absolute;left:calc(100% + 10px);background:var(--dark);color:#fff;padding:6px 14px;border-radius:8px;font-size:.78rem;font-weight:600;white-space:nowrap;opacity:0;visibility:hidden;transition:var(--transition);pointer-events:none}
.whatsapp-sticky:hover .wa-tooltip{opacity:1;visibility:visible}
.whatsapp-sticky::before{content:'';position:absolute;inset:-4px;border-radius:50%;border:2px solid #25d366;animation:waPulse 2s ease-in-out infinite}
@keyframes waPulse{0%,100%{transform:scale(1);opacity:.6}50%{transform:scale(1.3);opacity:0}}

/* Popup */
.popup-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(6px);z-index:300;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:var(--transition);padding:24px}
.popup-overlay.active{opacity:1;visibility:visible}
.popup-modal{background:var(--surface);border-radius:var(--radius-lg);max-width:480px;width:100%;overflow:hidden;position:relative;animation:popIn .4s ease;box-shadow:var(--shadow-xl)}
@keyframes popIn{from{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}
.popup-close{position:absolute;top:12px;right:12px;z-index:10;width:32px;height:32px;border-radius:50%;border:none;background:rgba(0,0,0,.2);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center}
.popup-close:hover{background:var(--danger)}
.popup-v2-image{width:100%;line-height:0}
.popup-v2-image img{width:100%;height:auto;display:block;object-fit:contain}
.popup-v2-body{padding:28px 24px 24px}
.popup-v2-body h3{font-size:1.3rem;font-weight:800;margin-bottom:6px;text-align:center}
.popup-v2-body>div>p{font-size:.88rem;color:var(--text-muted);margin-bottom:18px;text-align:center}
.popup-field{display:flex;align-items:center;margin-bottom:10px;border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden}
.popup-field:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(var(--primary-rgb),.1)}
.popup-field i{padding:0 14px;color:var(--text-light)}
.popup-field input{flex:1;border:none;padding:12px 14px 12px 0;font-size:.9rem;outline:none;font-family:inherit;background:transparent}
.popup-submit-btn{width:100%;margin-top:6px}
.popup-v2-success{text-align:center;padding:16px 0}
.popup-success-icon{font-size:3rem;color:var(--success);margin-bottom:12px}
.popup-success-msg{font-size:1rem;font-weight:600;margin-bottom:14px}
.popup-coupon-box{display:flex;align-items:center;justify-content:center;gap:10px;background:rgba(var(--primary-rgb),.06);padding:14px 20px;border-radius:var(--radius-sm);border:2px dashed var(--primary)}
.popup-coupon-box span{font-size:1.4rem;font-weight:800;color:var(--primary);font-family:monospace;letter-spacing:2px}

/* Back to top */
.back-to-top{position:fixed;bottom:24px;right:24px;width:44px;height:44px;border-radius:50%;background:var(--primary);color:#fff;border:none;font-size:1rem;cursor:pointer;box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transform:translateY(20px);transition:var(--transition);z-index:90;display:flex;align-items:center;justify-content:center}
.back-to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-to-top:hover{background:var(--dark)}

/* Forms */
.form-group{margin-bottom:20px}
.form-group label{display:block;font-weight:600;font-size:.88rem;margin-bottom:6px}
.form-control{width:100%;padding:12px 16px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:.9rem;font-family:var(--font-body);outline:none;transition:var(--transition);background:var(--surface)}
.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(var(--primary-rgb),.1)}
textarea.form-control{min-height:120px;resize:vertical}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* Auth */
.auth-section{min-height:80vh;display:flex;align-items:center;justify-content:center;padding:60px 24px}
.auth-card{background:var(--surface);border-radius:var(--radius-lg);padding:48px;max-width:460px;width:100%;box-shadow:var(--shadow-lg);border:1px solid var(--border)}
.auth-card h2{font-size:1.8rem;margin-bottom:8px;text-align:center}
.auth-card .subtitle{text-align:center;color:var(--text-muted);margin-bottom:32px;font-size:.9rem}
.auth-footer{text-align:center;margin-top:20px;font-size:.88rem;color:var(--text-muted)}
.auth-footer a{color:var(--primary);font-weight:600}

/* Course detail */
.course-hero{background:var(--dark);padding:60px 0;color:#fff}
.course-hero-grid{display:grid;grid-template-columns:1fr 380px;gap:48px;align-items:start}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:.82rem;color:rgba(255,255,255,.5);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb a{color:rgba(255,255,255,.5)}
.course-hero h1{font-size:2.2rem;color:#fff;margin-bottom:12px}
.course-hero .subtitle{font-size:1.05rem;color:rgba(255,255,255,.7);margin-bottom:20px}
.course-meta-row{display:flex;align-items:center;flex-wrap:wrap;gap:20px;margin-bottom:20px}
.meta-item{display:flex;align-items:center;gap:6px;font-size:.85rem;color:rgba(255,255,255,.7)}
.meta-item i{color:var(--accent)}
.course-sidebar-card{background:var(--surface);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-xl);position:sticky;top:88px;color:var(--text)}
.course-preview{aspect-ratio:16/9;background:#000;position:relative}
.course-preview img{width:100%;height:100%;object-fit:cover}
.sidebar-body{padding:24px}
.sidebar-price{font-size:2rem;font-weight:800;color:var(--dark);font-family:var(--font-heading);margin-bottom:4px}
.sidebar-price .original{font-size:1rem;text-decoration:line-through;color:var(--text-light);font-weight:400}
.sidebar-buttons{display:flex;flex-direction:column;gap:8px;margin:20px 0}
.sidebar-buttons .btn{width:100%}
.sidebar-features{display:flex;flex-direction:column;gap:12px;padding-top:20px;border-top:1px solid var(--border)}
.sidebar-feature{display:flex;align-items:center;gap:10px;font-size:.85rem;color:var(--text-muted)}
.sidebar-feature i{width:20px;color:var(--primary);text-align:center}
.course-content-section{padding:60px 0}
.tab-nav{display:flex;gap:4px;border-bottom:2px solid var(--border);margin-bottom:32px;overflow-x:auto}
.tab-btn{padding:12px 24px;font-weight:600;font-size:.9rem;color:var(--text-muted);background:none;border:none;cursor:pointer;position:relative;white-space:nowrap;font-family:var(--font-body)}
.tab-btn.active{color:var(--primary)}
.tab-btn.active::after{content:'';position:absolute;bottom:-2px;left:0;right:0;height:2px;background:var(--primary)}
.curriculum-section{margin-bottom:16px}
.curriculum-header{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;background:rgba(0,0,0,.02);border-radius:var(--radius-sm);cursor:pointer;border:1px solid var(--border)}
.curriculum-lessons{display:none;padding:8px 0}
.curriculum-section.open .curriculum-lessons{display:block}
.lesson-item{display:flex;align-items:center;gap:12px;padding:10px 18px;font-size:.88rem}
.lesson-item i{color:var(--text-light);width:20px}
.lesson-item .lesson-title{flex:1}
.preview-badge{font-size:.72rem;color:var(--primary);font-weight:600;background:rgba(var(--primary-rgb),.08);padding:2px 8px;border-radius:4px}

/* Blog */
.blog-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px}
.blog-card{background:var(--surface);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);transition:var(--transition)}
.blog-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.blog-thumb{aspect-ratio:16/10;overflow:hidden;background:rgba(var(--primary-rgb),.06)}
.blog-thumb img{width:100%;height:100%;object-fit:cover}
.blog-body{padding:20px}
.blog-body h3{font-size:1.1rem;margin-bottom:8px;line-height:1.4}
.blog-body p{font-size:.85rem;color:var(--text-muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.blog-meta{display:flex;align-items:center;gap:12px;padding-top:14px;margin-top:14px;border-top:1px solid var(--border);font-size:.8rem;color:var(--text-muted);flex-wrap:wrap}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:start}
.contact-info-cards{display:flex;flex-direction:column;gap:16px}
.contact-info-card{display:flex;align-items:flex-start;gap:16px;padding:20px;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border)}
.contact-info-card i{width:44px;height:44px;border-radius:12px;background:rgba(var(--primary-rgb),.08);display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:1.1rem;flex-shrink:0}
.contact-info-card h4{font-size:.95rem;margin-bottom:4px}
.contact-info-card p{font-size:.85rem;color:var(--text-muted)}
.contact-form-card{background:var(--surface);border-radius:var(--radius-lg);padding:36px;border:1px solid var(--border);box-shadow:var(--shadow)}

/* Profile */
.profile-grid{display:grid;grid-template-columns:260px 1fr;gap:32px}
.profile-side-card{background:var(--surface);border-radius:var(--radius-lg);padding:24px;border:1px solid var(--border);text-align:center}
.profile-nav{margin-top:16px;display:flex;flex-direction:column;gap:4px}
.profile-nav a{padding:10px 16px;border-radius:var(--radius-sm);font-size:.88rem;display:flex;align-items:center;gap:10px;color:var(--text-muted)}
.profile-nav a.active{background:rgba(var(--primary-rgb),.06);color:var(--primary);font-weight:600}
.profile-stat-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.profile-stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;text-align:center}
.profile-stat .num{font-size:2rem;font-weight:800}

/* Pagination */
.pagination{display:flex;align-items:center;justify-content:center;gap:6px;margin-top:40px}
.pagination a,.pagination span{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);font-size:.88rem;font-weight:600;border:1px solid var(--border)}
.pagination a:hover{border-color:var(--primary);color:var(--primary)}
.pagination .current{background:var(--primary);color:#fff;border-color:var(--primary)}

/* Flash */
.flash{padding:14px 20px;border-radius:var(--radius-sm);margin-bottom:20px;font-size:.9rem;font-weight:500;display:flex;align-items:center;gap:10px}
.flash-success{background:rgba(16,185,129,.08);color:var(--success);border:1px solid rgba(16,185,129,.2)}
.flash-error{background:rgba(239,68,68,.08);color:var(--danger);border:1px solid rgba(239,68,68,.2)}

/* Animations */
@keyframes spin{to{transform:rotate(360deg)}}
.animate-on-scroll{opacity:0;transform:translateY(30px);transition:all .7s cubic-bezier(.4,0,.2,1)}
.animate-on-scroll.visible{opacity:1;transform:translateY(0)}

/* Utilities */
.text-center{text-align:center}
.mt-3{margin-top:24px}.mt-4{margin-top:32px}.mb-3{margin-bottom:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:#f1f5f9}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}

/* ============ RESPONSIVE ============ */
@media(max-width:1024px){
    .container{padding:0 16px}
    .header-inner{height:60px;gap:12px}
    .logo img{height:30px}.logo-text{font-size:1rem}
    .main-nav{position:fixed;top:60px;left:0;right:0;bottom:0;background:var(--surface);flex-direction:column;justify-content:flex-start;padding:20px;gap:4px;transform:translateX(-100%);transition:var(--transition);z-index:98;overflow-y:auto}
    .main-nav.open{transform:translateX(0)}
    .mobile-toggle{display:flex}
    .nav-link{width:100%;padding:12px 16px;font-size:1rem}
    .mega-menu{position:static;transform:none;box-shadow:none;min-width:auto;border:none;padding:4px 0 4px 16px;display:none;opacity:1;visibility:visible;pointer-events:auto}
    .nav-dropdown .mega-menu.show{display:block}
    .dropdown-menu{position:static;transform:none;opacity:1;visibility:visible;pointer-events:auto}
    .mega-grid{grid-template-columns:1fr}
    .section{padding:48px 0}
    .section-header{margin-bottom:32px}.section-header h2{font-size:1.8rem}
    .hero-slider,.hero-video-banner .hero-banner-media{padding-bottom:52%}
    .hero-banner-overlay h1{font-size:1.9rem}.hero-banner-overlay p{font-size:1rem}
    .slider-arrow{width:38px;height:38px;font-size:.9rem}.slider-prev{left:10px}.slider-next{right:10px}
    .course-hero-grid{grid-template-columns:1fr}
    .course-sidebar-card{position:static;margin-top:24px}
    .contact-grid{grid-template-columns:1fr;gap:24px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
    .stats-grid{grid-template-columns:repeat(2,1fr)}
    .profile-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
    html{font-size:15px}
    .container{padding:0 14px}
    .header-inner{height:56px}.main-nav{top:56px}
    .header-btn-auth{display:none !important}
    .announcement-bar{font-size:.78rem;padding:8px 12px}.announcement-bar .container{gap:8px}.announcement-close{position:static;flex-shrink:0}
    .hero-slider,.hero-video-banner .hero-banner-media{padding-bottom:62%}
    .hero-banner-overlay{padding-bottom:24px}
    .hero-banner-overlay h1{font-size:1.5rem}.hero-banner-overlay p{font-size:.88rem;margin-bottom:14px}
    .hero-banner .hero-buttons .btn{font-size:.82rem;padding:10px 18px}
    .slider-arrow{width:32px;height:32px;font-size:.8rem}
    .hero-play-btn{width:56px;height:56px;font-size:1.3rem}
    .section{padding:36px 0}.section-header h2{font-size:1.5rem}.section-header p{font-size:.9rem}
    .courses-grid{grid-template-columns:1fr}
    .course-card:hover{transform:none}
    .categories-grid{grid-template-columns:repeat(2,1fr);gap:10px}
    .category-card{padding:18px 12px}.category-icon{width:44px;height:44px;font-size:1.1rem}.category-card h4{font-size:.82rem}.category-card p{display:none}
    .stats-grid{grid-template-columns:repeat(2,1fr);gap:12px}.stat-number{font-size:1.8rem}.stat-label{font-size:.72rem}
    .testimonials-slider{grid-template-columns:1fr}.testimonial-card{padding:20px}
    .cta-section{padding:48px 0}.cta-section h2{font-size:1.6rem}.cta-section p{font-size:.9rem}
    .cta-buttons{flex-direction:column;align-items:center}.cta-buttons .btn{width:100%;max-width:300px}
    .footer-grid{grid-template-columns:1fr;gap:24px;text-align:center}
    .footer-brand .logo{justify-content:center}.social-links{justify-content:center}.contact-info li{justify-content:center}
    .footer-body{padding:40px 0 24px}.footer-wave svg{height:40px}
    .blog-grid{grid-template-columns:1fr}
    .auth-section{padding:32px 16px}.auth-card{padding:28px 20px}.auth-card h2{font-size:1.4rem}
    .form-row{grid-template-columns:1fr}.grid-2,.grid-3{grid-template-columns:1fr}
    .course-hero{padding:32px 0}.course-hero h1{font-size:1.4rem}
    .tab-btn{padding:10px 14px;font-size:.82rem}
    .profile-stat-cards{grid-template-columns:1fr 1fr}
    .whatsapp-sticky{width:48px;height:48px;font-size:1.4rem;bottom:16px;left:16px}
    .whatsapp-sticky .wa-tooltip{display:none}
    .back-to-top{width:38px;height:38px;font-size:.85rem;bottom:16px;right:16px}
    .popup-modal{max-width:calc(100vw - 24px)}.popup-v2-body{padding:20px 16px}
    .btn{padding:10px 20px;font-size:.85rem}.btn-lg{padding:12px 24px;font-size:.9rem}
}
@media(max-width:480px){
    .hero-slider,.hero-video-banner .hero-banner-media{padding-bottom:78%}
    .hero-banner-overlay h1{font-size:1.2rem}.hero-banner-overlay p{font-size:.78rem}
    .hero-banner .hero-buttons{flex-direction:column;width:100%}.hero-banner .hero-buttons .btn{width:100%}
    .categories-grid{grid-template-columns:repeat(2,1fr);gap:8px}
    .category-card{padding:14px 8px}.category-icon{width:36px;height:36px;font-size:.9rem}.category-card h4{font-size:.75rem}
    .stats-grid{grid-template-columns:repeat(2,1fr)}.stat-number{font-size:1.5rem}
    .profile-stat-cards{grid-template-columns:1fr}
    .section-header h2{font-size:1.3rem}
    .cta-section h2{font-size:1.3rem}
}
@media(hover:none){
    .course-card:hover,.category-card:hover,.blog-card:hover,.testimonial-card:hover{transform:none}
    .category-card:hover::before{opacity:0}.category-card:hover *{color:inherit !important}
    .course-thumb-overlay{opacity:1;background:linear-gradient(to top,rgba(0,0,0,.25),transparent)}
}
.spinner{width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite;margin:40px auto}

/* ============ COURSE PLAYER ============ */
.learn-wrap{display:flex;min-height:calc(100vh - 72px)}
.learn-sidebar{width:340px;flex-shrink:0;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;max-height:calc(100vh - 72px);position:sticky;top:72px}
.learn-sidebar-head{padding:20px;border-bottom:1px solid var(--border)}
.learn-back{font-size:.8rem;color:var(--text-muted);display:inline-flex;align-items:center;gap:6px;margin-bottom:10px}
.learn-back:hover{color:var(--primary)}
.learn-sidebar-head h3{font-size:1.05rem;line-height:1.4;margin-bottom:14px}
.learn-progress-bar{height:8px;background:var(--border);border-radius:4px;overflow:hidden;margin-bottom:6px}
.learn-progress-bar span{display:block;height:100%;background:var(--gradient);border-radius:4px;transition:width .5s ease}
.learn-progress small{color:var(--text-muted);font-size:.78rem}
.learn-curriculum{overflow-y:auto;flex:1;padding:8px 0}
.learn-section{margin-bottom:4px}
.learn-section-title{font-size:.72rem;text-transform:uppercase;letter-spacing:.5px;color:var(--text-light);font-weight:700;padding:12px 20px 6px}
.learn-lesson{display:flex;align-items:center;gap:10px;padding:11px 20px;font-size:.85rem;color:var(--text-muted);border-left:3px solid transparent;transition:var(--transition)}
.learn-lesson:hover{background:rgba(var(--primary-rgb),.04);color:var(--text)}
.learn-lesson.active{background:rgba(var(--primary-rgb),.07);border-left-color:var(--primary);color:var(--primary);font-weight:600}
.learn-lesson.done .learn-lesson-ico{color:var(--success)}
.learn-lesson-ico{flex-shrink:0;font-size:1rem}
.learn-lesson-title{flex:1;line-height:1.4}
.learn-lesson-dur{font-size:.72rem;color:var(--text-light);flex-shrink:0}
.learn-main{flex:1;min-width:0;background:#0b1220}
.learn-sidebar-toggle{display:none;align-items:center;gap:8px;width:100%;padding:12px 16px;background:var(--surface);border:none;border-bottom:1px solid var(--border);font-family:var(--font-body);font-weight:600;font-size:.9rem;color:var(--text);cursor:pointer}
.learn-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:97}
.learn-overlay.show{display:block}
.learn-content{max-width:1000px;margin:0 auto}
.learn-player{position:relative;width:100%;aspect-ratio:16/9;background:#000}
.learn-player video,.learn-player iframe{position:absolute;inset:0;width:100%;height:100%;border:none;display:block}
.learn-novideo{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:rgba(255,255,255,.4)}
.learn-novideo i{font-size:3rem}
.learn-body{background:var(--bg);padding:32px;min-height:300px}
.learn-title{font-size:1.6rem;margin-bottom:16px}
.learn-text{color:var(--text);line-height:1.9;font-size:1rem;margin-bottom:24px;white-space:pre-line}
.learn-block{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;margin-bottom:20px}
.learn-block>h4{font-size:1rem;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.learn-block>h4 i{color:var(--primary)}
.learn-attachments{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:10px}
.learn-attachment{display:flex;align-items:center;gap:12px;padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius);transition:var(--transition);position:relative}
.learn-attachment:hover{border-color:var(--primary);background:rgba(var(--primary-rgb),.03)}
.learn-attachment>i:first-child{font-size:1.4rem;color:var(--primary);flex-shrink:0}
.att-name{flex:1;font-size:.85rem;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.att-meta{font-size:.72rem;color:var(--text-light);position:absolute;bottom:6px;left:48px}
.att-dl{color:var(--text-light);font-size:.85rem}
.learn-attachment{padding-bottom:22px}
/* Quiz */
.learn-quiz .quiz-desc{color:var(--text-muted);font-size:.9rem;margin-bottom:8px}
.quiz-meta{font-size:.85rem;color:var(--text-muted);margin-bottom:20px}
.q-pass{color:var(--success)}.q-fail{color:var(--danger)}
.quiz-question{margin-bottom:22px;padding-bottom:20px;border-bottom:1px solid var(--border)}
.quiz-question:last-of-type{border-bottom:none}
.quiz-q-title{font-weight:600;margin-bottom:12px;font-size:.95rem}
.quiz-q-title small{color:var(--text-light);font-weight:400}
.quiz-options{display:flex;flex-direction:column;gap:8px}
.quiz-option{display:flex;align-items:center;gap:10px;padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);font-size:.9rem}
.quiz-option:hover{border-color:var(--primary);background:rgba(var(--primary-rgb),.03)}
.quiz-option input{width:18px;height:18px;flex-shrink:0;accent-color:var(--primary)}
.quiz-result{margin-top:20px;padding:24px;border-radius:var(--radius-lg);text-align:center}
.quiz-result.pass{background:rgba(16,185,129,.08);border:1px solid rgba(16,185,129,.25)}
.quiz-result.fail{background:rgba(239,68,68,.06);border:1px solid rgba(239,68,68,.2)}
.quiz-result-score{font-size:2.4rem;font-weight:800;font-family:var(--font-heading)}
.quiz-result.pass .quiz-result-score{color:var(--success)}
.quiz-result.fail .quiz-result-score{color:var(--danger)}
.quiz-result p{color:var(--text-muted);font-size:.88rem;margin-top:4px}
.learn-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:8px}
.learn-actions-right{display:flex;gap:10px;align-items:center}
.learn-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;min-height:60vh;color:rgba(255,255,255,.5)}
.learn-empty i{font-size:3.5rem}
@media(max-width:992px){
  .learn-wrap{flex-direction:column}
  .learn-sidebar{position:fixed;top:0;left:0;bottom:0;z-index:98;width:300px;max-height:100vh;transform:translateX(-100%);transition:transform .3s}
  .learn-sidebar.open{transform:translateX(0)}
  .learn-sidebar-toggle{display:flex}
  .learn-body{padding:20px 16px}
  .learn-title{font-size:1.3rem}
  .learn-attachments{grid-template-columns:1fr}
  .learn-actions{flex-direction:column-reverse;align-items:stretch}
  .learn-actions-right{flex-direction:column}
  .learn-actions .btn{width:100%}
}