:root {
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --primary-light: #818cf8;
  --accent: #06b6d4;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --text: #1e293b;
  --text-sec: #64748b;
  --text-muted: #94a3b8;
  --border: #e2e8f0;
  --success: #10b981;
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,.07);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.08);
  --radius: 10px;
  --font: 'Inter', -apple-system, sans-serif;
  --ease: .25s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}
body{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.7;font-size:16px}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--primary-dark)}
ul{list-style:none}
.container{max-width:1120px;margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section--alt{background:var(--bg-alt)}
.section__header{text-align:center;margin-bottom:48px}
.section__title{font-size:2rem;font-weight:700;margin-bottom:12px;letter-spacing:-.02em}
.section__subtitle{font-size:1.1rem;color:var(--text-sec);max-width:600px;margin:0 auto}

/* Navbar */
.navbar{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:0 24px}
.navbar__inner{max-width:1120px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:64px}
.navbar__logo{font-size:1.35rem;font-weight:800;color:var(--primary);letter-spacing:-.03em}
.navbar__logo span{color:var(--text)}
.navbar__links{display:flex;gap:8px}
.navbar__links a{color:var(--text-sec);font-size:.9rem;font-weight:500;padding:6px 14px;border-radius:6px;transition:all var(--ease)}
.navbar__links a:hover,.navbar__links a.active{color:var(--primary);background:rgba(79,70,229,.06)}
.navbar__toggle{display:none;background:none;border:none;cursor:pointer;padding:8px}
.navbar__toggle span{display:block;width:22px;height:2px;background:var(--text);margin:5px 0;border-radius:2px}

/* Hero */
.hero{padding:100px 0 80px;text-align:center;background:linear-gradient(170deg,#f0f0ff 0%,#fff 50%,#f0fdfa 100%);position:relative;overflow:hidden}
.hero__badge{display:inline-flex;align-items:center;gap:6px;background:rgba(79,70,229,.08);color:var(--primary);font-size:.85rem;font-weight:600;padding:6px 16px;border-radius:100px;margin-bottom:24px}
.hero__badge::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--success);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.hero__title{font-size:3.2rem;font-weight:800;letter-spacing:-.03em;line-height:1.15;margin-bottom:20px}
.hero__title .highlight{background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero__subtitle{font-size:1.2rem;color:var(--text-sec);max-width:560px;margin:0 auto 36px;line-height:1.7}
.hero__cta{display:inline-flex;align-items:center;gap:8px;background:var(--primary);color:#fff;font-size:1rem;font-weight:600;padding:14px 32px;border-radius:var(--radius);border:none;cursor:pointer;transition:all var(--ease);box-shadow:0 4px 14px rgba(79,70,229,.3)}
.hero__cta:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 6px 20px rgba(79,70,229,.35);color:#fff}

/* Stats */
.stats{padding:60px 0;border-bottom:1px solid var(--border)}
.stats__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;text-align:center}
.stat__number{font-size:2.4rem;font-weight:800;color:var(--primary);margin-bottom:4px}
.stat__label{font-size:.95rem;color:var(--text-sec);font-weight:500}

/* Card Grid */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.card{background:var(--bg);border:1px solid var(--border);border-radius:16px;padding:32px 28px;transition:all var(--ease)}
.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:var(--primary-light)}
.card__icon{width:48px;height:48px;border-radius:var(--radius);display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:18px;background:rgba(79,70,229,.08)}
.card__title{font-size:1.15rem;font-weight:700;margin-bottom:8px}
.card__text{font-size:.95rem;color:var(--text-sec);line-height:1.65}

/* Info Box */
.info-box{background:linear-gradient(135deg,#f0f0ff,#f0fdfa);border:1px solid rgba(79,70,229,.12);border-radius:16px;padding:40px;max-width:760px;margin:0 auto}
.info-box__title{font-size:1.3rem;font-weight:700;margin-bottom:16px}
.info-box__text{font-size:.95rem;color:var(--text-sec);margin-bottom:16px;line-height:1.7}
.info-box__list li{position:relative;padding-left:24px;margin-bottom:10px;font-size:.95rem;color:var(--text-sec)}
.info-box__list li::before{content:'✓';position:absolute;left:0;color:var(--success);font-weight:700}

/* Course Card */
.course-card{background:var(--bg);border:1px solid var(--border);border-radius:16px;overflow:hidden;transition:all var(--ease)}
.course-card:hover{box-shadow:0 20px 25px -5px rgba(0,0,0,.08);transform:translateY(-4px)}
.course-card__banner{height:8px}
.course-card__banner--purple{background:linear-gradient(90deg,#4f46e5,#818cf8)}
.course-card__banner--teal{background:linear-gradient(90deg,#0891b2,#06b6d4)}
.course-card__banner--amber{background:linear-gradient(90deg,#d97706,#f59e0b)}
.course-card__body{padding:28px}
.course-card__tag{display:inline-block;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;padding:4px 10px;border-radius:100px;margin-bottom:14px}
.course-card__tag--purple{background:rgba(79,70,229,.08);color:var(--primary)}
.course-card__tag--teal{background:rgba(6,182,212,.08);color:#0891b2}
.course-card__tag--amber{background:rgba(245,158,11,.08);color:#b45309}
.course-card__title{font-size:1.3rem;font-weight:700;margin-bottom:10px}
.course-card__desc{font-size:.95rem;color:var(--text-sec);margin-bottom:20px;line-height:1.65}
.course-card__meta{display:flex;gap:20px;margin-bottom:20px;flex-wrap:wrap}
.course-card__meta-item{font-size:.85rem;color:var(--text-muted);font-weight:500}
.course-card__meta-item strong{color:var(--text)}
.course-card__topics{margin-bottom:24px}
.course-card__topics h4{font-size:.85rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin-bottom:10px}
.course-card__topics ul{display:flex;flex-wrap:wrap;gap:8px}
.course-card__topics li{font-size:.82rem;background:var(--bg-alt);padding:4px 12px;border-radius:100px;color:var(--text-sec);border:1px solid var(--border)}
.course-card__footer{display:flex;align-items:center;justify-content:space-between;padding-top:20px;border-top:1px solid var(--border)}
.course-card__price{font-size:1.6rem;font-weight:800}
.course-card__price small{font-size:.8rem;font-weight:500;color:var(--text-muted)}
.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 22px;border-radius:6px;font-size:.9rem;font-weight:600;cursor:pointer;transition:all var(--ease);border:none;text-decoration:none}
.btn--primary{background:var(--primary);color:#fff}
.btn--primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px)}

/* About */
.about-hero{padding:80px 0 60px;text-align:center;background:linear-gradient(170deg,#f0f0ff 0%,#fff 100%)}
.about-hero__title{font-size:2.6rem;font-weight:800;letter-spacing:-.03em;margin-bottom:16px}
.about-hero__text{font-size:1.1rem;color:var(--text-sec);max-width:640px;margin:0 auto;line-height:1.7}
.about-values{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px}
.about-value{text-align:center;padding:32px 20px;border-radius:16px;background:var(--bg);border:1px solid var(--border);transition:all var(--ease)}
.about-value:hover{box-shadow:var(--shadow-md)}
.about-value__icon{font-size:2rem;margin-bottom:12px}
.about-value__title{font-weight:700;font-size:1.05rem;margin-bottom:8px}
.about-value__text{font-size:.9rem;color:var(--text-sec);line-height:1.6}
.founder{display:flex;align-items:center;gap:40px;max-width:700px;margin:0 auto;padding:40px;border-radius:16px;background:var(--bg);border:1px solid var(--border)}
.founder__avatar{width:100px;height:100px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;font-size:2.4rem;color:#fff;font-weight:800;flex-shrink:0}
.founder__info h3{font-size:1.3rem;font-weight:700;margin-bottom:4px}
.founder__info .role{font-size:.9rem;color:var(--primary);font-weight:600;margin-bottom:12px}
.founder__info p{font-size:.95rem;color:var(--text-sec);line-height:1.65}

/* Legal */
.legal{padding:80px 0}
.legal__inner{max-width:760px;margin:0 auto}
.legal h1{font-size:2.2rem;font-weight:800;letter-spacing:-.02em;margin-bottom:8px}
.legal .updated{font-size:.9rem;color:var(--text-muted);margin-bottom:40px}
.legal h2{font-size:1.25rem;font-weight:700;margin-top:36px;margin-bottom:12px}
.legal p{font-size:.95rem;color:var(--text-sec);margin-bottom:16px;line-height:1.75}
.legal ul{padding-left:24px;margin-bottom:16px}
.legal ul li{list-style:disc;font-size:.95rem;color:var(--text-sec);margin-bottom:8px;line-height:1.65}
.legal a{color:var(--primary);text-decoration:underline}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:start}
.contact-info h2{font-size:1.6rem;font-weight:700;margin-bottom:16px}
.contact-info p{font-size:.95rem;color:var(--text-sec);margin-bottom:24px;line-height:1.7}
.contact-detail{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.contact-detail__icon{width:40px;height:40px;border-radius:6px;background:rgba(79,70,229,.08);display:flex;align-items:center;justify-content:center;font-size:1.1rem;flex-shrink:0}
.contact-detail__text{font-size:.95rem;color:var(--text-sec)}
.contact-detail__text strong{display:block;color:var(--text);font-size:.85rem;margin-bottom:2px}
.contact-form{background:var(--bg);border:1px solid var(--border);border-radius:16px;padding:36px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:.85rem;font-weight:600;color:var(--text);margin-bottom:6px}
.form-group input,.form-group textarea{width:100%;padding:12px 14px;border:1.5px solid var(--border);border-radius:6px;font-family:var(--font);font-size:.95rem;color:var(--text);background:var(--bg);transition:border-color var(--ease);outline:none}
.form-group input:focus,.form-group textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,70,229,.1)}
.form-group textarea{min-height:130px;resize:vertical}
.form-group input::placeholder,.form-group textarea::placeholder{color:var(--text-muted)}

/* Footer */
.footer{background:var(--bg-alt);border-top:1px solid var(--border);padding:40px 0}
.footer__inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px}
.footer__brand{font-size:1.1rem;font-weight:700;color:var(--text)}
.footer__brand span{color:var(--primary)}
.footer__copy{font-size:.85rem;color:var(--text-muted)}
.footer__links{display:flex;gap:20px}
.footer__links a{font-size:.85rem;color:var(--text-muted);transition:color var(--ease)}
.footer__links a:hover{color:var(--primary)}

/* Page Header */
.page-header{padding:64px 0 48px;text-align:center;background:linear-gradient(170deg,#f0f0ff 0%,#fff 100%)}
.page-header__title{font-size:2.4rem;font-weight:800;letter-spacing:-.03em;margin-bottom:12px}
.page-header__text{font-size:1.05rem;color:var(--text-sec);max-width:560px;margin:0 auto}

/* Responsive */
@media(max-width:768px){
  .navbar__links{display:none;position:absolute;top:64px;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--border);flex-direction:column;padding:16px 24px;box-shadow:var(--shadow-md)}
  .navbar__links.open{display:flex}
  .navbar__toggle{display:block}
  .hero__title{font-size:2rem}
  .hero__subtitle{font-size:1rem}
  .hero{padding:60px 0 50px}
  .stats__grid{grid-template-columns:1fr;gap:24px}
  .card-grid{grid-template-columns:1fr}
  .about-values{grid-template-columns:1fr}
  .founder{flex-direction:column;text-align:center;padding:28px}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .section{padding:48px 0}
  .section__title{font-size:1.6rem}
  .footer__inner{flex-direction:column;text-align:center}
  .page-header__title,.about-hero__title{font-size:1.8rem}
}
@media(max-width:480px){
  .hero__title{font-size:1.65rem}
  .info-box{padding:24px}
  .contact-form{padding:24px}
}