@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --blue-primary: #0a4bf8;
  --blue-secondary: #0075ff;
  --blue-light: #eff6ff;
  --blue-dark: #0a1930;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --bg-white: #ffffff;
  --bg-gray: #f8fafc;
  --border-color: #e2e8f0;
  --green-success: #10b981;
  --shadow-sm: 0 1px 2px 0 rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1),0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1),0 4px 6px -2px rgba(0,0,0,0.05);
  --shadow-hover: 0 20px 25px -5px rgba(0,0,0,0.1),0 10px 10px -5px rgba(0,0,0,0.04);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --transition: 0.2s ease-in-out;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;}
body{font-family:'Inter',sans-serif;background-color:var(--bg-white);color:var(--text-main);line-height:1.6;}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

.container{max-width:1280px;margin:0 auto;padding:0 24px;}
.section{padding:80px 0;}
.bg-white{background-color:var(--bg-white);}
.bg-gray{background-color:var(--bg-gray);}
.text-muted{color:var(--text-muted);}
.section-label{color:var(--blue-primary);font-weight:600;font-size:0.9rem;margin-bottom:8px;display:block;}

h1,h2,h3,h4{font-weight:800;line-height:1.2;color:var(--text-main);}
.text-blue{color:var(--blue-secondary);}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--radius-full);font-weight:600;font-size:0.95rem;cursor:pointer;transition:var(--transition);text-decoration:none;border:none;}
.btn-primary{background-color:var(--blue-primary);color:white;}
.btn-primary:hover{background-color:#0036cc;box-shadow:0 4px 12px rgba(10,75,248,0.3);transform:translateY(-1px);}
.btn-outline{background-color:transparent;color:var(--text-main);border:1px solid var(--border-color);}
.btn-outline:hover{background-color:var(--bg-gray);border-color:var(--text-muted);}
.btn-outline-blue{background-color:transparent;color:var(--blue-primary);border:1px solid var(--blue-primary);}
.btn-outline-blue:hover{background-color:var(--blue-light);}
.btn-green{background-color:var(--green-success);color:white;}
.btn-green:hover{background-color:#059669;transform:translateY(-1px);box-shadow:0 4px 12px rgba(16,185,129,0.3);}
.btn-whatsapp{background-color:#25D366;color:white;display:inline-flex;align-items:center;gap:10px;}
.btn-whatsapp:hover{background-color:#128C7E;transform:translateY(-1px);box-shadow:0 4px 12px rgba(37,211,102,0.35);}

.badge{display:inline-block;padding:6px 16px;background-color:var(--blue-light);color:var(--blue-primary);border-radius:var(--radius-full);font-size:0.8rem;font-weight:700;text-transform:uppercase;letter-spacing:0.5px;margin-bottom:24px;}

/* Navbar */
.navbar{background-color:var(--bg-white);border-bottom:1px solid var(--border-color);padding:14px 0;position:sticky;top:0;z-index:1000;transition:box-shadow 0.3s ease;}
.navbar.scrolled{box-shadow:0 4px 20px rgba(0,0,0,0.08);}
.nav-inner{display:flex;justify-content:space-between;align-items:center;gap:16px;}
.nav-logo img{height:44px;width:auto;object-fit:contain;}
.nav-links{display:flex;gap:28px;list-style:none;}
.nav-links a{text-decoration:none;color:var(--text-main);font-weight:500;font-size:0.95rem;transition:var(--transition);}
.nav-links a:hover,.nav-links a.nav-active{color:var(--blue-primary);}
.nav-cta{display:flex;gap:12px;align-items:center;}

/* Hamburger */
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px;border-radius:var(--radius-sm);}
.hamburger span{display:block;width:24px;height:2px;background:var(--text-main);border-radius:2px;transition:all 0.3s ease;}
.hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.hamburger.active span:nth-child(2){opacity:0;}
.hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* Hero */
.hero{background-color:var(--bg-white);padding:80px 0 60px;position:relative;overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.hero-content h1{font-size:clamp(2.2rem,4vw,3.8rem);margin-bottom:20px;}
.hero-content p{font-size:1.05rem;color:var(--text-muted);margin-bottom:32px;max-width:480px;}
.hero-ctas{display:flex;gap:16px;flex-wrap:wrap;}
.hero-visual{position:relative;z-index:1;}
.hero-visual img{width:100%;height:auto;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);display:block;}

/* Floating hero stat cards */
.hero-stat-card{position:absolute;background:white;border-radius:var(--radius-md);box-shadow:0 8px 32px rgba(0,0,0,0.12);padding:14px 18px;min-width:130px;z-index:10;animation:floatCard 4s ease-in-out infinite;}
.stat-top-left{top:12%;left:-30px;animation-delay:0s;}
.stat-top-right{top:8%;right:-20px;animation-delay:1s;}
.stat-bottom-right{bottom:15%;right:-24px;animation-delay:2s;}
.stat-card-label{font-size:0.72rem;color:var(--text-muted);font-weight:500;margin-bottom:4px;}
.stat-card-value{font-size:1.3rem;font-weight:800;}
.stat-card-value.green{color:var(--green-success);}
.stat-card-value.blue{color:var(--blue-primary);}
.stat-card-value.dark{color:var(--text-main);}
.stat-card-chart svg{width:80px;height:28px;margin-top:6px;}
.stat-card-ring{margin-top:6px;}
.stat-bars{display:flex;align-items:flex-end;gap:4px;margin-top:8px;height:30px;}
.stat-bars .bar{border-radius:2px 2px 0 0;}
@keyframes floatCard{0%,100%{transform:translateY(0);}50%{transform:translateY(-6px);}}

/* Features Strip */
.features-strip{background-color:var(--bg-white);padding:0 0 80px 0;}
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);background-color:var(--bg-white);border-radius:var(--radius-md);border:1px solid var(--border-color);box-shadow:var(--shadow-sm);}
.feature-item{padding:32px 24px;display:flex;flex-direction:column;gap:12px;border-right:1px solid var(--border-color);transition:var(--transition);position:relative;overflow:hidden;}
.feature-item::after{content:'';position:absolute;bottom:0;left:0;width:100%;height:3px;background-color:var(--blue-primary);transform:scaleX(0);transform-origin:left;transition:transform 0.3s ease;}
.feature-item:hover{background-color:var(--bg-gray);box-shadow:var(--shadow-md);}
.feature-item:hover::after{transform:scaleX(1);}
.feature-item:last-child{border-right:none;}
.feature-icon{width:48px;height:48px;background-color:var(--blue-light);border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;transition:var(--transition);font-size:1.3rem;}
.feature-item:hover .feature-icon{transform:translateY(-5px) scale(1.1);box-shadow:0 5px 15px rgba(10,75,248,0.2);}
.feature-item h3{font-size:1rem;}
.feature-item p{font-size:0.88rem;color:var(--text-muted);}

/* Courses */
.courses-header{text-align:center;margin-bottom:48px;}
.courses-header h2{margin-bottom:8px;}
.courses-layout{display:grid;grid-template-columns:3fr 1fr;gap:32px;}
.courses-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.course-card{background-color:var(--bg-white);border-radius:var(--radius-md);border:1px solid var(--border-color);overflow:hidden;transition:var(--transition);}
.course-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);}
.course-image{height:160px;width:100%;background-color:var(--blue-dark);background-size:cover;background-position:center;}
.course-content{padding:24px;position:relative;}
.course-card-icon{position:absolute;top:-24px;left:24px;width:48px;height:48px;background-color:var(--bg-white);border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm);font-size:1.2rem;}
.course-content h3{font-size:1.05rem;margin-top:16px;margin-bottom:8px;}
.course-content p{font-size:0.88rem;color:var(--text-muted);margin-bottom:20px;}
.course-link{color:var(--blue-primary);text-decoration:none;font-weight:600;font-size:0.88rem;}
.course-link:hover{text-decoration:underline;}

/* Stats sidebar */
.stats-sidebar{background-color:var(--bg-white);border-radius:var(--radius-md);border:1px solid var(--border-color);padding:28px 20px;}
.stats-sidebar h3{font-size:1.05rem;margin-bottom:24px;display:flex;align-items:center;gap:8px;}
.stats-sidebar h3::before{content:'';display:block;width:4px;height:16px;background-color:var(--blue-primary);border-radius:2px;}
.stat-item{display:flex;align-items:flex-start;gap:14px;margin-bottom:20px;padding-bottom:20px;border-bottom:1px solid var(--border-color);transition:var(--transition);}
.stat-item:hover{transform:translateX(4px);}
.stat-item:last-of-type{border-bottom:none;margin-bottom:20px;padding-bottom:0;}
.stat-icon{color:var(--blue-primary);background-color:var(--blue-light);width:40px;height:40px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:1.1rem;}
.stat-info h4{font-size:1.3rem;margin-bottom:2px;}
.stat-info p{font-size:0.78rem;color:var(--text-muted);}

/* Testimonials */
.testimonials-section{background-color:var(--bg-white);}
.testimonials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:0;}
.testimonial-card{padding:28px;border-radius:var(--radius-md);border:1px solid var(--border-color);transition:var(--transition);background-color:var(--bg-white);box-shadow:var(--shadow-sm);}
.testimonial-card:hover{box-shadow:var(--shadow-hover);border-color:transparent;}
.stars{color:#fbbf24;margin-bottom:14px;letter-spacing:2px;font-size:1.1rem;}
.testimonial-text{font-size:0.93rem;color:var(--text-main);margin-bottom:20px;line-height:1.7;}
.testimonial-author{display:flex;align-items:center;gap:12px;}
.author-img{width:40px;height:40px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--blue-light),var(--blue-primary));flex-shrink:0;}
.author-info h4{font-size:0.88rem;}

/* About */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
.about-content h2{font-size:clamp(1.8rem,3vw,2.5rem);margin-bottom:20px;}
.about-content p{color:var(--text-muted);margin-bottom:24px;}
.about-list{list-style:none;display:flex;flex-direction:column;gap:12px;}
.about-list li{display:flex;align-items:center;gap:12px;font-weight:500;}
.about-list li svg{color:var(--blue-primary);flex-shrink:0;}
.about-visual{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);position:relative;}
.about-visual img{width:100%;height:100%;object-fit:cover;display:block;}
.journey-card{position:absolute;bottom:20px;left:16px;right:16px;background:white;padding:18px;border-radius:var(--radius-md);box-shadow:var(--shadow-lg);}
.journey-card h4{font-size:0.88rem;margin-bottom:14px;display:flex;align-items:center;gap:6px;}
.journey-track{display:flex;justify-content:space-between;position:relative;margin-top:16px;}
.track-line,.track-progress{position:absolute;top:6px;left:0;height:4px;border-radius:2px;}
.track-line{width:100%;background:var(--bg-gray);z-index:1;}
.track-progress{width:75%;background:var(--blue-primary);z-index:2;}
.track-step{z-index:3;text-align:center;}
.track-step .dot{width:16px;height:16px;background:var(--blue-primary);border:3px solid white;border-radius:50%;margin:0 auto 6px;}
.track-step.final .dot{background:white;border:3px solid var(--blue-primary);}
.track-step span{font-size:0.68rem;color:var(--text-muted);}
.track-step.final span{color:var(--blue-primary);font-weight:700;}

/* Why Choose Us */
.why-choose-section{background-color:var(--bg-white);}
.why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:40px;}
.why-card{padding:28px;border-radius:var(--radius-md);background-color:var(--bg-gray);display:flex;gap:16px;transition:var(--transition);border:1px solid transparent;}
.why-card:hover{border-color:var(--blue-primary);box-shadow:var(--shadow-lg);background-color:var(--bg-white);}
.why-card .icon{width:48px;height:48px;background-color:var(--bg-white);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm);transition:var(--transition);flex-shrink:0;font-size:1.3rem;}
.why-card:hover .icon{background-color:var(--blue-primary);color:white;}
.why-card h3{font-size:1rem;margin-bottom:6px;}
.why-card p{font-size:0.88rem;}

/* CTA Section */
.cta-section{padding:60px 0 80px;}
.cta-banner{background:linear-gradient(135deg,var(--blue-dark),#1e3a8a);border-radius:var(--radius-lg);padding:56px;display:flex;justify-content:space-between;align-items:center;gap:40px;overflow:hidden;}
.cta-text h2{color:white;font-size:clamp(1.6rem,3vw,2.2rem);margin-bottom:14px;}
.cta-text p{color:#cbd5e1;max-width:420px;margin-bottom:28px;}
.cta-image{flex-shrink:0;max-width:260px;}
.cta-image img{width:100%;border-radius:var(--radius-md);box-shadow:var(--shadow-lg);}

/* Pricing Cards (for paid-courses.html) */
.pricing-card{background:var(--bg-white);border:2px solid var(--border-color);border-radius:var(--radius-lg);padding:40px;text-align:center;transition:var(--transition);position:relative;}
.pricing-card.featured{border-color:var(--blue-primary);box-shadow:0 0 0 4px rgba(10,75,248,0.08);}
.pricing-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.pricing-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--blue-primary);color:white;padding:4px 20px;border-radius:var(--radius-full);font-size:0.78rem;font-weight:700;white-space:nowrap;}
.pricing-price{font-size:3rem;font-weight:800;color:var(--text-main);line-height:1;}
.pricing-price sup{font-size:1.2rem;vertical-align:top;margin-top:8px;}
.pricing-price sub{font-size:0.95rem;font-weight:500;color:var(--text-muted);}
.pricing-features{list-style:none;text-align:left;margin:28px 0;display:flex;flex-direction:column;gap:12px;}
.pricing-features li{display:flex;align-items:center;gap:10px;font-size:0.93rem;}
.pricing-features li::before{content:'✓';color:var(--green-success);font-weight:700;flex-shrink:0;}

/* Free Courses Page */
.free-course-hero{background:linear-gradient(135deg,var(--blue-dark),#1e3a8a);padding:60px 0 40px;}
.free-course-hero h1{color:white;font-size:clamp(1.8rem,4vw,3rem);margin-bottom:12px;}
.free-course-hero p{color:#cbd5e1;font-size:1.05rem;}
.video-wrapper{position:relative;aspect-ratio:16/9;background:#000;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);}
.video-wrapper iframe{width:100%;height:100%;border:0;}

/* Footer */
footer{background-color:var(--bg-white);border-top:1px solid var(--border-color);padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1.6fr;gap:36px;margin-bottom:56px;}
.footer-brand .footer-logo{height:44px;width:auto;margin-bottom:14px;display:block;}
.footer-desc{color:var(--text-muted);font-size:0.88rem;margin-bottom:20px;}
.footer-socials{display:flex;gap:12px;}
.footer-socials a{width:36px;height:36px;border-radius:50%;border:1px solid var(--border-color);display:flex;align-items:center;justify-content:center;color:var(--text-muted);transition:var(--transition);}
.footer-socials a:hover{background:var(--blue-primary);border-color:var(--blue-primary);color:white;}
.footer-col h4{font-size:0.95rem;margin-bottom:18px;}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:var(--text-muted);text-decoration:none;font-size:0.88rem;transition:var(--transition);}
.footer-col a:hover{color:var(--blue-primary);}
.newsletter-form{display:flex;margin-top:12px;}
.newsletter-form input{padding:11px 14px;border:1px solid var(--border-color);border-radius:var(--radius-sm) 0 0 var(--radius-sm);outline:none;width:100%;font-size:0.88rem;}
.newsletter-form input:focus{border-color:var(--blue-primary);}
.newsletter-form button{background-color:var(--blue-primary);color:white;border:none;padding:0 16px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;cursor:pointer;transition:var(--transition);}
.newsletter-form button:hover{background-color:#0036cc;}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:28px;border-top:1px solid var(--border-color);color:var(--text-muted);font-size:0.83rem;}
.footer-bottom-links{display:flex;gap:20px;}
.footer-bottom-links a{color:var(--text-muted);text-decoration:none;transition:var(--transition);}
.footer-bottom-links a:hover{color:var(--blue-primary);}

/* Scroll reveal */
.reveal{opacity:0;transform:translateY(28px);transition:opacity 0.6s ease,transform 0.6s ease;}
.reveal.visible{opacity:1;transform:translateY(0);}

/* Accordion (FAQ) */
.accordion-item{border:1px solid var(--border-color);border-radius:var(--radius-md);overflow:hidden;margin-bottom:12px;}
.accordion-header{display:flex;justify-content:space-between;align-items:center;padding:18px 24px;cursor:pointer;font-weight:600;background:var(--bg-white);transition:var(--transition);}
.accordion-header:hover{background:var(--bg-gray);}
.accordion-header .chevron{transition:transform 0.3s ease;font-size:0.8rem;}
.accordion-item.open .accordion-header .chevron{transform:rotate(180deg);}
.accordion-body{max-height:0;overflow:hidden;transition:max-height 0.4s ease;}
.accordion-body-inner{padding:0 24px 20px;color:var(--text-muted);font-size:0.93rem;line-height:1.7;}

/* Module list */
.module-list{display:flex;flex-direction:column;gap:16px;}
.module-item{display:flex;align-items:center;gap:16px;padding:20px;background:var(--bg-gray);border-radius:var(--radius-md);border:1px solid var(--border-color);transition:var(--transition);}
.module-item:hover{border-color:var(--blue-primary);background:var(--bg-white);box-shadow:var(--shadow-sm);}
.module-num{width:40px;height:40px;border-radius:var(--radius-full);background:var(--blue-primary);color:white;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:0.88rem;flex-shrink:0;}
.module-info h4{font-size:0.95rem;margin-bottom:2px;}
.module-info p{font-size:0.82rem;color:var(--text-muted);}
.module-lessons{margin-left:auto;font-size:0.8rem;color:var(--text-muted);white-space:nowrap;}

/* ─── Responsive ─── */
@media(max-width:1024px){
  .hero-grid,.about-grid{grid-template-columns:1fr;}
  .courses-layout{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
  .cta-banner{flex-direction:column;text-align:center;padding:40px 28px;}
  .cta-image{max-width:220px;}
  .stat-top-left{left:-10px;}
  .stat-top-right{right:-10px;}
  .stat-bottom-right{right:-10px;}
}

@media(max-width:768px){
  .hamburger{display:flex;}
  .nav-links{display:none;flex-direction:column;gap:0;position:absolute;top:100%;left:0;right:0;background:var(--bg-white);border-bottom:1px solid var(--border-color);box-shadow:var(--shadow-md);z-index:999;padding:8px 0;}
  .nav-links.open{display:flex;}
  .nav-links li a{display:block;padding:14px 24px;border-bottom:1px solid var(--border-color);}
  .nav-links li:last-child a{border-bottom:none;}
  .nav-cta{display:none;}
  .nav-cta.open{display:flex;flex-direction:column;padding:12px 24px 16px;gap:10px;}
  .navbar{position:relative;}
  .features-grid{grid-template-columns:1fr;border:none;gap:0;}
  .feature-item{border-right:none;border-bottom:1px solid var(--border-color);}
  .feature-item:last-child{border-bottom:none;}
  .courses-grid,.testimonials-grid,.why-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:12px;text-align:center;}
  .footer-bottom-links{flex-wrap:wrap;justify-content:center;}
  .hero{padding:50px 0 40px;}
  .hero-stat-card{display:none;}
  .section{padding:56px 0;}
  .about-grid{gap:40px;}
  .cta-banner{padding:32px 20px;}
  .cta-image{display:none;}
}

@media(max-width:480px){
  .container{padding:0 16px;}
  .hero-ctas{flex-direction:column;}
  .hero-ctas .btn{width:100%;justify-content:center;}
  .courses-grid{grid-template-columns:1fr;}
  .why-grid{grid-template-columns:1fr;}
  .testimonials-grid{grid-template-columns:1fr;}
}