:root{--primary-green:#2e7d32;--primary-dark-green:#1b5e20;--primary-light-green:#4caf50;--accent-yellow:#ffc107;--accent-gold:#ffb300;--white:#ffffff;--off-white:#f8f9fa;--black:#1a1a1a;--font-display:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;--font-body:-apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;--transition-fast:0.2s ease;--transition-normal:0.3s ease}[data-theme=dark]{--off-white:#242424;--light-gray:#333333}*,::before,::after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-body);font-size:18px;line-height:1.7;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}[data-theme=light] body{background-color:#fff;color:#1a1a1a}[data-theme=dark] body{background-color:#121212;color:#e5e5e5}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);font-weight:700;line-height:1.2}.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;padding:15px 0;transition:all var(--transition-normal)}.site-header-transparent{background:0 0}.site-header.scrolled{padding:10px 0}[data-theme=light] .site-header.scrolled{background-color:#fff!important;box-shadow:0 2px 10px rgba(0,0,0,.1)}[data-theme=dark] .site-header.scrolled{background-color:rgba(18,18,18,.98)!important;box-shadow:0 2px 10px rgba(0,0,0,.3)}.logo-container{display:flex;align-items:center;gap:10px;text-decoration:none}.logo-text{font-family:var(--font-display);font-weight:800;font-size:1.5rem;color:var(--white)}.logo-text span{color:var(--accent-yellow)}.site-nav{display:flex;align-items:center;gap:20px}.nav-link{font-family:var(--font-display);font-weight:500;font-size:.95rem;text-decoration:none;transition:color var(--transition-fast);padding:8px 12px}.site-header-transparent .nav-link{color:#fff}.site-header-transparent .nav-link:hover{color:var(--accent-yellow)}.hero-section-new{min-height:100vh;display:flex;align-items:center;background:var(--gradient-green);position:relative;overflow:hidden;padding-top:100px}.hero-title-new{font-size:clamp(2.5rem,6vw,4rem);font-weight:800;color:#fff;margin-bottom:1.5rem;line-height:1.1}.hero-subtitle-new{font-size:clamp(1.1rem,2vw,1.35rem);color:#fff;opacity:.95;margin-bottom:2rem;max-width:600px}.course-hero-section{min-height:60vh;display:flex;align-items:center;background:linear-gradient(135deg,var(--primary-green) 0%,var(--primary-dark-green) 100%);position:relative;padding-top:120px}.course-hero-title{font-size:clamp(2rem,5vw,3rem);font-weight:800;color:#fff;margin-bottom:1rem}.course-hero-tagline{font-size:1.2rem;color:#fff;opacity:.95}.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 32px;font-family:var(--font-display);font-weight:600;font-size:1rem;text-decoration:none;border:0;cursor:pointer;transition:all var(--transition-normal)}.btn-hero-primary{background:var(--accent-yellow);color:var(--black);padding:16px 40px;font-size:1.1rem}.btn-hero-secondary{background:0 0;color:#fff;border:2px solid #fff;padding:14px 36px}.skip-link{position:absolute;top:-100%;left:50%;transform:translateX(-50%);background:var(--primary-green);color:#fff;padding:12px 24px;z-index:9999;transition:top .3s ease}.skip-link:focus{top:10px}.loading-skeleton{background:linear-gradient(90deg,#f0f0f0 25%,#e0e0e0 50%,#f0f0f0 75%);background-size:200% 100%;animation:shimmer 1.5s infinite}@keyframes shimmer{0%{background-position:-200%0}to{background-position:200%0}}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 15px}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}