:root{--primary: #1e40af;--primary-light: #3b82f6;--primary-dark: #1e3a8a;--primary-50: #eff6ff;--primary-100: #dbeafe;--accent: #0d9488;--accent-light: #14b8a6;--surface-color: var(--gray-50);--gray-50: #f8fafc;--gray-100: #f1f5f9;--gray-200: #e2e8f0;--gray-300: #cbd5e1;--gray-400: #94a3b8;--gray-500: #64748b;--gray-600: #475569;--gray-700: #334155;--gray-800: #1e293b;--gray-900: #0f172a;--success-bg: #ecfdf5;--success-border: #a7f3d0;--error-bg: #fef2f2;--error-border: #fecaca;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow: 0 1px 3px 0 rgb(0 0 0 / .1), 0 1px 2px -1px rgb(0 0 0 / .1);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .07), 0 2px 4px -2px rgb(0 0 0 / .07);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .08), 0 4px 6px -4px rgb(0 0 0 / .08);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .08), 0 8px 10px -6px rgb(0 0 0 / .06);--radius-sm: .375rem;--radius: .5rem;--radius-md: .75rem;--radius-lg: 1rem;--radius-xl: 1.5rem}.app-status-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;padding:2rem;text-align:center;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--gray-700);background:var(--gray-50)}.app-status-spinner{width:40px;height:40px;border:3px solid var(--primary-100);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite;margin-bottom:1.5rem}.app-status-icon{font-size:48px;color:var(--gray-400);margin-bottom:1rem}.app-status-title{font-size:1.25rem;font-weight:600;color:var(--gray-800);margin-bottom:.5rem}.app-status-text{font-size:1rem;color:var(--gray-500);max-width:400px}.app-status-retry{margin-top:1.5rem;padding:.625rem 1.5rem;font-size:.9375rem;font-weight:500;color:#fff;background:var(--primary);border:none;border-radius:6px;cursor:pointer;transition:background .2s}.app-status-retry:hover{background:var(--primary-dark)}.app-status-fallback{margin-top:2rem;padding-top:1.5rem;border-top:1px solid var(--gray-200)}.app-status-fallback p{font-size:.875rem;color:var(--gray-500);margin-bottom:.75rem}.app-status-links{display:flex;gap:1.25rem;flex-wrap:wrap;justify-content:center}.app-status-links a{font-size:.875rem;color:var(--primary);text-decoration:none}.app-status-links a:hover{text-decoration:underline}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.6;color:var(--gray-900);background-color:#fff;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.skip-link{position:absolute;top:-100%;left:0;background:var(--primary);color:#fff;padding:.75rem 1.5rem;z-index:9999;font-weight:600;text-decoration:none;border-radius:0 0 var(--radius) 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#1e40af4d;text-decoration:none}.btn-outline{background:#ffffff14;color:#fff;border:2px solid rgba(255,255,255,.35);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.btn-outline:hover{background:#ffffff26;border-color:#ffffffb3;color:#fff;text-decoration:none;transform:translateY(-1px)}.back-link{display:inline-flex;align-items:center;gap:.5rem;padding:.625rem 1.25rem;background:var(--primary);color:#fff;text-decoration:none;border-radius:var(--radius-md);font-weight:500;font-size:.9375rem;transition:all .2s ease}.back-link:hover{background:var(--primary-dark);text-decoration:none;transform:translateY(-1px)}.page-header{background:#fff;border-radius:var(--radius-lg);padding:2rem;margin-bottom:1.5rem;box-shadow:var(--shadow-md);border:1px solid var(--gray-100)}.page-title{font-size:clamp(1.75rem,4vw,2.5rem);font-weight:700;color:var(--gray-900);margin-bottom:0}.content{background:#fff;border-radius:var(--radius-lg);padding:2rem;box-shadow:var(--shadow-md);border:1px solid var(--gray-100);margin-bottom:1.5rem}.header{position:fixed;top:0;left:0;right:0;background:#ffffffeb;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--gray-200);z-index:1000}.nav{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding:.875rem 2rem}.logo{font-size:1.25rem;font-weight:700;color:var(--gray-900);text-decoration:none;letter-spacing:-.02em}.logo:hover{color:var(--primary);text-decoration:none}.nav-right{display:flex;align-items:center;gap:1.5rem}.nav-links{display:flex;list-style:none;gap:.25rem;align-items:center;margin:0;padding:0}.nav-links li{margin:0}.nav-links a{text-decoration:none;color:var(--gray-600);font-weight:500;font-size:.9375rem;padding:.5rem .75rem;border-radius:var(--radius);transition:color .2s,background .2s}.nav-links a:hover{color:var(--primary);background:var(--primary-50);text-decoration:none}.lang-switcher{display:flex;background:var(--gray-100);border:1px solid 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h1{font-size:clamp(2.25rem,5vw,3.25rem);font-weight:700;margin-bottom:.75rem;line-height:1.15;letter-spacing:-.03em;color:#fff}.hero .subtitle{font-size:clamp(1rem,2vw,1.1875rem);margin-bottom:1.5rem;color:#fffc;font-weight:400}.hero .description{margin-bottom:2.5rem;color:#ffffffbf;max-width:520px;margin-left:auto;margin-right:auto;line-height:1.8;font-size:1.0625rem;font-weight:300}.cta-buttons{display:flex;gap:.75rem;justify-content:center;flex-wrap:wrap}.section{padding:clamp(3rem,6vw,6rem) 2rem;max-width:1100px;margin:0 auto}.section-header{text-align:center;margin-bottom:clamp(2.5rem,4vw,4rem)}.section-title{font-size:clamp(1.75rem,3.5vw,2.25rem);font-weight:700;margin-bottom:.75rem;color:var(--gray-900);letter-spacing:-.02em}.section-subtitle{font-size:clamp(.9375rem,1.5vw,1.0625rem);color:var(--gray-600);max-width:520px;margin:0 auto;line-height:1.7}.section-about{background:linear-gradient(180deg,var(--gray-50) 0%,#ffffff 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h3{margin-bottom:1.5rem;font-size:1.375rem}.contact-items-container{display:flex;gap:2rem;flex-wrap:wrap}.contact-item{display:flex;align-items:center;gap:1rem;margin-bottom:1rem}.contact-icon{width:44px;height:44px;background:var(--primary);color:#fff;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;flex-shrink:0}.contact-form{background:#fff;padding:2rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);border:1px solid var(--gray-100)}.contact-form h3{margin-bottom:1.5rem;font-size:1.375rem}.form-group{margin-bottom:1.25rem}.form-label{display:block;margin-bottom:.375rem;font-weight:500;font-size:.9375rem;color:var(--gray-700)}.form-input,.form-textarea{width:100%;padding:.625rem .875rem;border:1px solid var(--gray-300);border-radius:var(--radius);font-family:inherit;font-size:.9375rem;color:var(--gray-900);background:#fff;transition:border-color .2s,box-shadow 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.modal-content{transform:scale(1) translateY(0)}.modal-header{padding:1.5rem 1.5rem 1rem;border-bottom:1px solid var(--gray-100);display:flex;justify-content:space-between;align-items:center}.modal-title{font-size:1.25rem;font-weight:600}.modal-close{background:var(--gray-100);border:none;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--gray-500);transition:all .2s}.modal-close:hover{background:var(--gray-200);color:var(--gray-700)}.modal-body{padding:1.5rem}.course-detail ul{margin-left:1.5rem;margin-top:.75rem}.course-detail li{margin-bottom:.375rem}@keyframes fadeInUp{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}.fade-in-up{animation:fadeInUp .7s ease forwards}.scroll-reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s 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