@import"https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@400;700;900&display=swap";@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;600;800&display=swap";:root{--color-bg-primary: #ffffff;--color-bg-secondary: #f1f5f9;--color-bg-glass: rgba(255, 255, 255, .9);--color-text-primary: #0f172a;--color-text-secondary: #475569;--color-accent-primary: #1e3a8a;--color-accent-secondary: #1e40af;--color-accent-glow: rgba(30, 58, 138, .2);--color-silver: #94a3b8;--color-silver-light: #e2e8f0;--font-primary: "Inter", system-ui, -apple-system, sans-serif;--font-heading: "Noto Serif JP", serif;--shadow-glass: 0 4px 20px 0 rgba(0, 0, 0, .05);--border-glass: 1px solid rgba(30, 58, 138, .1);--shadow-card: 0 4px 6px -1px rgba(0, 0, 0, .05), 0 2px 4px -1px rgba(0, 0, 0, .03)}body{margin:0;font-family:var(--font-primary);background-color:var(--color-bg-secondary);color:var(--color-text-primary);-webkit-font-smoothing:antialiased;background-image:linear-gradient(to bottom,#f8fafc,#f1f5f9);min-height:100vh}.glass-panel{background:var(--color-bg-primary);border:1px solid var(--color-silver-light);box-shadow:var(--shadow-card);border-radius:8px;transition:transform .3s ease,box-shadow .3s ease}.glass-panel:hover{transform:translateY(-3px);box-shadow:0 10px 25px -5px #0000001a;border-color:var(--color-silver)}.btn{padding:.75rem 1.5rem;border-radius:6px;font-weight:600;cursor:pointer;transition:all .2s ease;border:none;outline:none;font-size:.95rem;letter-spacing:.02em;font-family:var(--font-primary)}.btn-primary{background:var(--color-accent-primary);color:#fff;box-shadow:0 4px 6px #1e3a8a33}.btn-primary:hover{background:var(--color-accent-secondary);transform:translateY(-1px);box-shadow:0 6px 12px #1e3a8a4d}.btn-secondary{background:#fff;color:var(--color-accent-primary);border:1px solid var(--color-accent-primary)}.btn-secondary:hover{background:#eff6ff;transform:translateY(-1px)}.container{max-width:1200px;margin:0 auto;padding:2rem}h1,h2,h3{margin:0;font-family:var(--font-heading);font-weight:700;letter-spacing:.02em;color:var(--color-accent-primary)}a{text-decoration:none;color:inherit}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:fadeIn .8s ease-out forwards}.animate-slide-up{animation:slideUp .8s cubic-bezier(.16,1,.3,1) forwards}.delay-100{animation-delay:.1s}.delay-200{animation-delay:.2s}.delay-300{animation-delay:.3s}.modal-overlay{position:fixed;inset:0;background:#0f172a99;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .3s ease-out}.modal-content{background:#fff;padding:2.5rem;border-radius:12px;position:relative;box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a;animation:slideUp .4s cubic-bezier(.16,1,.3,1);max-width:450px;width:90%}.modal-close{position:absolute;top:1rem;right:1rem;background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--color-text-secondary);line-height:1}.form-group{margin-bottom:1.25rem}.form-group label{display:block;margin-bottom:.5rem;font-size:.9rem;font-weight:600;color:var(--color-text-primary)}.form-control{width:100%;padding:.75rem;border:1px solid var(--color-silver-light);border-radius:6px;font-size:1rem;transition:border-color .2s;box-sizing:border-box}.form-control:focus{outline:none;border-color:var(--color-accent-primary);box-shadow:0 0 0 3px var(--color-accent-glow)}@media(max-width:768px){.container{padding:1rem;width:100%;box-sizing:border-box}h1{font-size:2.2rem!important}h2{font-size:1.6rem!important}h3{font-size:1.3rem!important}.hero-title{font-size:2.2rem!important}.grid-responsive{grid-template-columns:1fr!important;gap:1.5rem!important}.mobile-card{background:var(--color-bg-primary);border:1px solid var(--color-silver-light);border-radius:8px;padding:1.25rem;margin-bottom:1rem;box-shadow:var(--shadow-card)}.mobile-card-title{font-size:1.1rem;font-weight:700;margin-bottom:.5rem;color:var(--color-accent-primary)}.mobile-card-meta{font-size:.85rem;color:var(--color-text-secondary);margin-bottom:1rem}.exam-header-compact{padding:.75rem 1rem!important;display:flex;justify-content:space-between;align-items:center;background:var(--color-bg-glass);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--color-silver-light);position:sticky;top:0;z-index:100}.hide-on-mobile{display:none!important}.show-on-mobile{display:block!important}.mobile-stack{flex-direction:column!important}.mobile-grid-1{grid-template-columns:1fr!important}.mobile-padding-sm{padding:1rem!important}.glass-panel{padding:1.25rem!important}.btn-mobile-full{width:100%!important;box-sizing:border-box}.mobile-only{display:grid!important}.pdf-container,.answer-container{width:100%!important;height:100%!important}}.spinner{width:20px;height:20px;border:3px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:#fff;animation:spin 1s ease-in-out infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(min-width:769px){.pdf-container{display:block!important}.answer-container{display:flex!important}}@media(max-width:480px){h1{font-size:1.8rem!important}.hero-title{font-size:2rem!important}}