:root{--font-sans:"Inter", system-ui, -apple-system, sans-serif;--font-display:"Plus Jakarta Sans", system-ui, -apple-system, sans-serif;--bg-main:#f8fafc;--bg-card:#fff;--border-color:#e2e8f0;--border-color-hover:#cbd5e1;--primary:#2563eb;--primary-hover:#1d4ed8;--secondary:#4f46e5;--secondary-glow:#e0e7ff;--accent:#16a34a;--accent-glow:#dcfce7;--danger:#dc2626;--warning:#ca8a04;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#64748b;--radius-lg:16px;--radius-md:12px;--radius-sm:8px;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000000d, 0 2px 4px -2px #0000000d;--shadow-lg:0 10px 15px -3px #0000000a, 0 4px 6px -4px #0000000a;--container-max:1200px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-main);color:var(--text-primary);-webkit-font-smoothing:antialiased;min-height:100vh;line-height:1.5;overflow-x:hidden}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--bg-main)}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}h1{font-family:var(--font-display);color:var(--text-primary);letter-spacing:-.025em;margin-bottom:12px;font-size:1.7rem;font-weight:800;line-height:1.25}h2{font-family:var(--font-display);color:var(--text-primary);letter-spacing:-.02em;margin-bottom:10px;font-size:1.35rem;font-weight:700;line-height:1.3}.section-title{text-align:center;color:var(--text-primary);letter-spacing:-.02em;margin-bottom:8px;font-size:1.45rem;font-weight:800}.section-desc{text-align:center;color:var(--text-secondary);max-width:580px;margin:0 auto 28px;font-size:.88rem;line-height:1.5}@media (width>=768px){.section-title{margin-bottom:12px;font-size:2.25rem}.section-desc{margin-bottom:48px;font-size:1.05rem}}h3{font-family:var(--font-display);color:var(--text-primary);margin-bottom:8px;font-size:1.15rem;font-weight:700}@media (width>=768px){h1{margin-bottom:20px;font-size:2.85rem}h2{margin-bottom:16px;font-size:2.25rem}h3{font-size:1.35rem}}.gradient-text{background:linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.container{max-width:var(--container-max);margin:0 auto;padding:0 16px}@media (width>=768px){.container{padding:0 24px}}.navbar{z-index:100;-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border-color);background:#ffffffe6;padding:12px 0;position:sticky;top:0}.navbar-container{justify-content:space-between;align-items:center;gap:12px;display:flex}.logo{font-family:var(--font-display);color:var(--text-primary);white-space:nowrap;letter-spacing:-.02em;align-items:center;gap:6px;font-size:1.12rem;font-weight:800;text-decoration:none;display:flex}@media (width>=768px){.logo{font-size:1.45rem}}.logo span{color:var(--primary)}.nav-links{align-items:center;gap:12px;list-style:none;display:flex}@media (width>=768px){.nav-links{gap:20px}}@media (width<=768px){.nav-links li:not(.nav-login-item){display:none}}.desktop-text{display:inline}@media (width<=768px){.desktop-text{display:none}}.nav-link{color:var(--text-secondary);font-size:.88rem;font-weight:600;text-decoration:none;transition:color .15s}.nav-link:hover{color:var(--primary)}.glass-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:20px;transition:all .2s cubic-bezier(.16,1,.3,1)}@media (width>=768px){.glass-card{box-shadow:var(--shadow-md);padding:32px}}.glass-card:hover{border-color:var(--border-color-hover);box-shadow:var(--shadow-lg);transform:translateY(-2px)}.btn{min-height:46px;font-family:var(--font-display);cursor:pointer;border:none;border-radius:10px;justify-content:center;align-items:center;gap:8px;width:100%;padding:10px 20px;font-size:.92rem;font-weight:700;text-decoration:none;transition:all .15s;display:inline-flex}@media (width>=768px){.btn{border-radius:12px;width:auto}}.hero-actions{flex-direction:column;gap:12px;width:100%;max-width:320px;margin:0 auto;display:flex}@media (width>=768px){.hero-actions{flex-direction:row;justify-content:center;gap:16px;max-width:none}}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 6px -1px #2563eb26}.btn-primary:hover{background:var(--primary-hover);box-shadow:0 6px 12px -2px #2563eb40}.btn-accent{background:var(--accent);color:#fff;box-shadow:0 4px 6px -1px #16a34a26}.btn-accent:hover{background:#15803d}.btn-secondary{border:1px solid var(--border-color);color:var(--text-secondary);background:#fff}.btn-secondary:hover{background:#f8fafc;border-color:#cbd5e1}.btn-sm{border-radius:var(--radius-sm);width:auto;min-height:38px;padding:8px 16px;font-size:.85rem}.btn-full{width:100%}.badge{text-transform:uppercase;letter-spacing:.03em;border-radius:9999px;align-items:center;padding:4px 8px;font-size:.7rem;font-weight:700;display:inline-flex}.badge-accent{background:var(--accent-glow);color:#15803d;border:1px solid #16a34a1f}.badge-secondary{background:var(--secondary-glow);color:var(--secondary);border:1px solid #4f46e51f}.badge-warning{color:#854d0e;background:#fef9c3;border:1px solid #ca8a041f}.hero{text-align:center;padding:36px 0 24px}@media (width>=768px){.hero{padding:80px 0 40px}}.hero-tag{margin-bottom:12px}.hero h1{max-width:800px;margin-left:auto;margin-right:auto}.hero-desc{color:var(--text-secondary);max-width:580px;margin:0 auto 28px;font-size:.95rem}@media (width>=768px){.hero-desc{margin-bottom:36px;font-size:1.1rem}}.hero-stats{grid-template-columns:repeat(3,1fr);gap:10px;width:100%;margin-top:36px;display:grid}@media (width>=768px){.hero-stats{justify-content:center;gap:32px;display:flex}}.stat-item{background:var(--bg-card);border:1px solid var(--border-color);border-radius:12px;flex-direction:column;align-items:center;padding:12px 6px;transition:transform .2s,box-shadow .2s;display:flex;box-shadow:0 4px 12px #0f172a05}.stat-item:hover{transform:translateY(-1px);box-shadow:0 6px 16px #0f172a0a}@media (width>=768px){.stat-item{border-radius:16px;min-width:160px;padding:16px 24px}}.stat-val{font-size:1.15rem;font-family:var(--font-display);color:var(--primary);font-weight:800;line-height:1.1}.stat-lbl{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;margin-top:4px;font-size:.65rem}@media (width>=768px){.stat-val{font-size:2rem}.stat-lbl{font-size:.75rem}}.pricing-section{padding:36px 0}.course-grid{grid-template-columns:1fr;gap:16px;margin-bottom:32px;display:grid}@media (width>=768px){.course-grid{grid-template-columns:repeat(auto-fit,minmax(360px,1fr));gap:24px;margin-bottom:48px}}.course-card{flex-direction:column;height:100%;padding:20px;display:flex}@media (width>=768px){.course-card{padding:32px}}.course-card h3{margin-bottom:6px;font-size:1.2rem}.course-card>p{margin-bottom:16px;font-size:.88rem}.course-features{margin-bottom:20px;padding-left:0;list-style:none}.course-features li{color:var(--text-secondary);align-items:flex-start;gap:6px;margin-bottom:8px;font-size:.82rem;display:flex}.course-features li svg{color:var(--accent);flex-shrink:0;margin-top:2px}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;background:#0f172a99;justify-content:center;align-items:center;padding:12px;display:flex;position:fixed;inset:0}.modal-content{border:1px solid var(--border-color);border-radius:var(--radius-lg);width:100%;max-width:460px;box-shadow:var(--shadow-lg);background:#fff;padding:20px;position:relative}@media (width>=768px){.modal-content{padding:32px}}.modal-close{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;padding:4px;transition:all .15s;display:flex;position:absolute;top:16px;right:16px}.modal-close:hover{color:var(--text-primary);background:#f1f5f9}.form-group{margin-bottom:14px}.form-label{margin-bottom:4px;font-size:.82rem;font-weight:700}.form-input{border-radius:var(--radius-sm);width:100%;color:var(--text-primary);background:#fff;border:1px solid #cbd5e1;min-height:44px;padding:10px 14px;font-size:1rem}.form-input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #2563eb1f}.dashboard-grid{flex-direction:column;gap:16px;display:flex}@media (width>=992px){.dashboard-grid{grid-template-columns:1.35fr 1fr;gap:28px;display:grid}}.dashboard-header{border-radius:var(--radius-md);margin-bottom:16px;padding:16px}@media (width>=768px){.dashboard-header{margin-bottom:24px;padding:24px}}.welcome-info h2{font-size:1.25rem}.welcome-info p{font-size:.88rem}@media (width>=768px){.welcome-info h2{font-size:1.5rem}}.accordion-header{padding:12px 14px}.accordion-name{font-size:.85rem}@media (width>=768px){.accordion-header{padding:16px}.accordion-name{font-size:.9rem}}.accordion-body{padding:12px 16px}.pricing-picker{flex-direction:column;gap:10px;display:flex}.pricing-option{padding:14px}.option-title{font-size:.88rem}.option-desc{font-size:.72rem}.option-amt{font-size:1.15rem}@media (width>=768px){.pricing-option{padding:16px}.option-title{font-size:.95rem}.option-amt{font-size:1.25rem}}.video-layout{flex-direction:column;gap:16px;display:flex}@media (width>=992px){.video-layout{grid-template-columns:2.1fr 1fr;gap:24px;display:grid}}.extra-section{padding:36px 0}.testimonial-grid{grid-template-columns:1fr;gap:16px;display:grid}@media (width>=768px){.testimonial-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}}.testimonial-card{padding:16px}.testimonial-text{font-size:.85rem}@media (width>=768px){.testimonial-card{padding:24px}.testimonial-text{font-size:.9rem}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes slideDown{0%{opacity:0;height:0}to{opacity:1;height:auto}}@media (width<=768px){.welcome-user-tag{display:none!important}}.about-center{padding:24px 0}.center-card{padding:16px}.center-grid{flex-direction:column;gap:20px;display:flex}.center-image-wrapper{width:100%;box-shadow:var(--shadow-sm);aspect-ratio:16/10;border-radius:12px;overflow:hidden}.center-image{object-fit:cover;width:100%;height:100%;display:block}.center-info{flex-direction:column;justify-content:center;display:flex}.center-lead{color:var(--primary);margin-bottom:8px;font-size:.95rem;font-weight:700}.center-text{color:var(--text-secondary);margin-bottom:16px;font-size:.88rem;line-height:1.6}.center-highlights{border-top:1px solid var(--border-color);grid-template-columns:repeat(3,1fr);gap:8px;padding-top:16px;display:grid}.highlight-item{text-align:center;background:#f8fafc;border-radius:8px;flex-direction:column;align-items:center;padding:8px 6px;display:flex}.highlight-item strong{color:var(--text-primary);font-size:.82rem}.highlight-item span{color:var(--text-muted);font-size:.68rem}@media (width>=768px){.center-card{padding:32px}.center-grid{grid-template-columns:1.1fr .9fr;gap:32px;display:grid}.center-image-wrapper{aspect-ratio:auto;height:100%;min-height:320px}}