@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@400;500;600;700;800;900&display=swap";:root{--indigo-50: #eef2ff;--indigo-100: #e0e7ff;--indigo-200: #c7d2fe;--indigo-300: #a5b4fc;--indigo-400: #818cf8;--indigo-500: #6366f1;--indigo-600: #4f46e5;--indigo-700: #4338ca;--indigo-800: #3730a3;--indigo-900: #312e81;--purple-50: #eef2ff;--purple-100: #e0e7ff;--purple-200: #c7d2fe;--purple-300: #a5b4fc;--purple-400: #818cf8;--purple-500: #6366f1;--purple-600: #6366f1;--purple-700: #4f46e5;--purple-800: #4338ca;--purple-900: #312e81;--cyan-50: #ecfeff;--cyan-100: #cffafe;--cyan-200: #a5f3fc;--cyan-300: #67e8f9;--cyan-400: #22d3ee;--cyan-500: #06b6d4;--cyan-600: #0891b2;--cyan-700: #0e7490;--cyan-800: #155e75;--cyan-900: #164e63;--emerald-50: #ecfdf5;--emerald-100: #d1fae5;--emerald-200: #a7f3d0;--emerald-300: #6ee7b7;--emerald-400: #34d399;--emerald-500: #10b981;--emerald-600: #059669;--emerald-700: #047857;--emerald-800: #065f46;--emerald-900: #064e3b;--rose-50: #fff1f2;--rose-100: #ffe4e6;--rose-200: #fecdd3;--rose-300: #fda4af;--rose-400: #fb7185;--rose-500: #f43f5e;--rose-600: #e11d48;--rose-700: #be123c;--rose-800: #9f1239;--rose-900: #881337;--amber-50: #fffbeb;--amber-100: #fef3c7;--amber-200: #fde68a;--amber-300: #fcd34d;--amber-400: #fbbf24;--amber-500: #f59e0b;--amber-600: #d97706;--amber-700: #b45309;--amber-800: #92400e;--amber-900: #78350f;--slate-50: #f8fafc;--slate-100: #f1f5f9;--slate-200: #e2e8f0;--slate-300: #cbd5e1;--slate-400: #94a3b8;--slate-500: #64748b;--slate-600: #475569;--slate-700: #334155;--slate-800: #1e293b;--slate-900: #0f172a;--slate-950: #020617;--primary-color: #6366f1;--primary-color-dark: #4f46e5;--primary-color-light: #818cf8;--secondary-color: var(--emerald-400);--secondary-dark: var(--emerald-500);--secondary-light: var(--emerald-300);--accent-color: var(--emerald-400);--success-color: var(--emerald-500);--success-dark: var(--emerald-600);--warning-color: var(--amber-500);--danger-color: var(--rose-500);--danger-dark: var(--rose-600);--info-color: var(--cyan-500);--gray-50: var(--slate-50);--gray-100: #f1f5f9;--gray-200: var(--slate-200);--gray-300: var(--slate-300);--gray-400: var(--slate-400);--gray-500: var(--slate-500);--gray-600: var(--slate-600);--gray-700: var(--slate-700);--gray-800: var(--slate-800);--gray-900: var(--slate-900);--gray-950: var(--slate-950);--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #94a3b8;--text-inverse: #f8fafc;--text-on-light: #1e293b;--text-on-light-secondary: #475569;--text-on-light-muted: #64748b;--surface-base: #f8fafc;--surface-card: rgba(255, 255, 255, .9);--surface-3: #f1f5f9;--surface-input: #ffffff;--bg-primary: #f8fafc;--bg-secondary: #f1f5f9;--bg-tertiary: #e2e8f0;--card-bg: #ffffff;--card-bg-hover: #f1f5f9;--border-color: rgba(0, 0, 0, .1);--border-color-light: rgba(0, 0, 0, .05);--border-color-dark: rgba(0, 0, 0, .2);--shadow-xs: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-sm: 0 1px 3px 0 rgb(0 0 0 / .1), 0 1px 2px -1px rgb(0 0 0 / .1);--shadow: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-md: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--shadow-lg: 0 20px 25px -5px rgb(0 0 0 / .12), 0 8px 10px -6px rgb(0 0 0 / .1);--shadow-xl: 0 25px 50px -12px rgb(0 0 0 / .25);--shadow-2xl: 0 35px 60px -15px rgb(0 0 0 / .3);--shadow-indigo: 0 10px 25px -5px rgb(99 102 241 / .35);--shadow-purple: 0 10px 25px -5px rgb(99 102 241 / .35);--shadow-cyan: 0 10px 25px -5px rgb(6 182 212 / .3);--shadow-emerald: 0 10px 25px -5px rgb(52 211 153 / .35);--radius-xs: 4px;--radius-sm: 8px;--radius: 12px;--radius-md: 16px;--radius-lg: 20px;--radius-xl: 24px;--radius-2xl: 32px;--radius-full: 9999px;--border-radius-sm: var(--radius-sm);--border-radius: var(--radius);--border-radius-md: var(--radius-md);--border-radius-lg: var(--radius-lg);--border-radius-xl: var(--radius-xl);--border-radius-2xl: var(--radius-2xl);--spacing-xs: .5rem;--spacing-sm: .75rem;--spacing-md: 1.25rem;--spacing-lg: 2rem;--spacing-xl: 3rem;--spacing-2xl: 4rem;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.5rem;--space-6: 2rem;--space-8: 3rem;--space-12: 4.5rem;--space-16: 6rem;--font-display: "Outfit", system-ui, -apple-system, sans-serif;--font-body: "Inter", system-ui, -apple-system, sans-serif;--font-mono: "SF Mono", "Monaco", "Cascadia Code", "Courier New", monospace;--font-family-base: var(--font-body);--font-family-mono: var(--font-mono);--glass-bg: rgba(255, 255, 255, .85);--glass-border: rgba(0, 0, 0, .08);--glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, .08);--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .35s cubic-bezier(.4, 0, .2, 1);--transition-bounce: .4s cubic-bezier(.34, 1.56, .64, 1)}[data-theme=dark]{--text-primary: #f1f5f9;--text-secondary: #cbd5e1;--text-muted: #94a3b8;--text-inverse: #0f172a;--surface-base: #020617;--surface-card: rgba(15, 23, 42, .8);--surface-3: #1e293b;--surface-input: #0f172a;--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-tertiary: #334155;--card-bg: #1e293b;--card-bg-hover: #334155;--border-color: rgba(255, 255, 255, .1);--border-color-light: rgba(255, 255, 255, .05);--border-color-dark: rgba(255, 255, 255, .2);--glass-bg: rgba(15, 23, 42, .8);--glass-border: rgba(255, 255, 255, .1);--glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, .4);--shadow-xs: 0 1px 2px 0 rgb(0 0 0 / .3);--shadow-sm: 0 1px 3px 0 rgb(0 0 0 / .4), 0 1px 2px -1px rgb(0 0 0 / .4);--shadow: 0 4px 6px -1px rgb(0 0 0 / .5), 0 2px 4px -2px rgb(0 0 0 / .5);--shadow-md: 0 10px 15px -3px rgb(0 0 0 / .6), 0 4px 6px -4px rgb(0 0 0 / .6);--shadow-lg: 0 20px 25px -5px rgb(0 0 0 / .7), 0 8px 10px -6px rgb(0 0 0 / .7);--shadow-xl: 0 25px 50px -12px rgb(0 0 0 / .8);--shadow-2xl: 0 35px 60px -15px rgb(0 0 0 / .9);--shadow-indigo: 0 10px 25px -5px rgb(99 102 241 / .5);--shadow-purple: 0 10px 25px -5px rgb(99 102 241 / .5);--shadow-cyan: 0 10px 25px -5px rgb(6 182 212 / .4);--shadow-emerald: 0 10px 25px -5px rgb(52 211 153 / .5);--gray-50: var(--slate-900);--gray-100: var(--slate-800);--gray-200: var(--slate-700);--gray-300: var(--slate-600);--gray-400: var(--slate-500);--gray-500: var(--slate-400);--gray-600: var(--slate-300);--gray-700: var(--slate-200);--gray-800: var(--slate-100);--gray-900: var(--slate-50)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-body);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--surface-base);background-attachment:fixed;color:var(--text-primary);line-height:1.6;font-size:16px;letter-spacing:-.011em;position:relative;overflow-x:hidden;min-height:100vh;transition:background-color var(--transition-base),color var(--transition-base)}body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at 20% 50%,rgba(99,102,241,.04) 0%,transparent 50%),radial-gradient(circle at 80% 80%,rgba(52,211,153,.03) 0%,transparent 50%),radial-gradient(circle at 40% 20%,rgba(99,102,241,.025) 0%,transparent 50%);animation:gradient-shift 20s ease infinite;pointer-events:none;z-index:-1}[data-theme=dark] body:before{background:radial-gradient(circle at 20% 50%,rgba(99,102,241,.08) 0%,transparent 50%),radial-gradient(circle at 80% 80%,rgba(52,211,153,.06) 0%,transparent 50%),radial-gradient(circle at 40% 20%,rgba(99,102,241,.05) 0%,transparent 50%)}@keyframes gradient-shift{0%,to{opacity:1;transform:scale(1) rotate(0)}50%{opacity:.8;transform:scale(1.1) rotate(5deg)}}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);font-weight:700;line-height:1.2;letter-spacing:-.025em;color:var(--text-primary);margin-bottom:var(--space-4)}h1{font-size:clamp(2.5rem,6vw,4rem);font-weight:900;color:var(--text-primary)}.text-gradient{background:linear-gradient(135deg,#6366f1 0%,var(--emerald-400) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}h2{font-size:clamp(2rem,5vw,3rem);font-weight:800}h3{font-size:clamp(1.5rem,4vw,2.25rem);font-weight:700}h4{font-size:clamp(1.25rem,3vw,1.75rem);font-weight:600}h5{font-size:1.25rem;font-weight:600}h6{font-size:1.125rem;font-weight:600}p{margin-bottom:var(--space-4);line-height:1.7;color:var(--text-secondary)}a{color:var(--primary-color);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--primary-color-dark)}.container-fluid{background:transparent;min-height:100vh;padding:0}.main-content{max-width:1280px;margin:0 auto;padding:var(--space-8) var(--space-6)}.card{background:var(--surface-card);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);border:1px solid var(--border-color);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm);transition:all var(--transition-slow);overflow:hidden;position:relative;color:var(--text-primary)}.card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--purple-500) 0%,var(--cyan-400) 50%,var(--purple-500) 100%);background-size:200% 100%;opacity:0;transition:opacity var(--transition-base)}.card:hover{transform:translateY(-8px) scale(1.01);box-shadow:var(--shadow-2xl),var(--shadow-purple);border-color:#a855f74d}.card:hover:before{opacity:1;animation:gradient-flow 3s linear infinite}@keyframes gradient-flow{0%{background-position:0% 50%}to{background-position:200% 50%}}.card-header{background:linear-gradient(135deg,rgba(168,85,247,.1) 0%,rgba(6,182,212,.05) 100%);border-bottom:1px solid rgba(168,85,247,.15);padding:var(--space-5) var(--space-6);font-family:var(--font-display);font-weight:700;font-size:1.25rem;color:var(--text-primary);letter-spacing:-.015em}.card-body{padding:var(--space-6);position:relative}.card-title{font-family:var(--font-display);font-size:1.5rem;font-weight:700;color:var(--text-primary);margin-bottom:var(--space-3);letter-spacing:-.02em}.card-text{color:var(--text-secondary);margin-bottom:var(--space-4);line-height:1.7;font-size:1rem}.card-footer{background:rgba(0,0,0,.03);border-top:1px solid var(--border-color-light);padding:var(--space-4) var(--space-6)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-md) var(--spacing-xl);font-family:var(--font-body);font-size:1rem;font-weight:600;line-height:1.5;letter-spacing:-.011em;border-radius:var(--radius);border:none;transition:all var(--transition-bounce);text-decoration:none;cursor:pointer;white-space:nowrap;position:relative;overflow:hidden;box-shadow:var(--shadow-sm)}.btn:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:rgba(255,255,255,.5);transform:translate(-50%,-50%);transition:width .6s,height .6s}.btn:active:before{width:400px;height:400px}.btn:focus{outline:none;box-shadow:0 0 0 4px #a855f733}.btn:disabled{opacity:.6;cursor:not-allowed;transform:none!important;pointer-events:none}.btn:active:not(:disabled){transform:scale(.96)}.btn-primary{background:linear-gradient(135deg,var(--purple-600) 0%,var(--purple-700) 100%);color:#fff;box-shadow:var(--shadow-purple)}.btn-primary:hover:not(:disabled){background:linear-gradient(135deg,var(--purple-700) 0%,var(--purple-800) 100%);transform:translateY(-3px) scale(1.02);box-shadow:var(--shadow-xl),var(--shadow-purple);color:#fff}.btn-secondary{background:linear-gradient(135deg,var(--cyan-500) 0%,var(--cyan-600) 100%);color:#fff;box-shadow:var(--shadow-cyan)}.btn-secondary:hover:not(:disabled){background:linear-gradient(135deg,var(--cyan-600) 0%,var(--cyan-700) 100%);transform:translateY(-3px) scale(1.02);box-shadow:var(--shadow-xl),var(--shadow-cyan);color:#fff}.btn-success{background:linear-gradient(135deg,var(--emerald-500) 0%,var(--emerald-600) 100%);color:#fff;box-shadow:var(--shadow-emerald)}.btn-success:hover:not(:disabled){background:linear-gradient(135deg,var(--emerald-600) 0%,var(--emerald-700) 100%);transform:translateY(-3px) scale(1.02);box-shadow:var(--shadow-xl),var(--shadow-emerald);color:#fff}.btn-warning{background:linear-gradient(135deg,var(--amber-400) 0%,var(--amber-500) 100%);color:#fff;box-shadow:0 10px 25px -5px #f59e0b4d}.btn-warning:hover:not(:disabled){background:linear-gradient(135deg,var(--amber-500) 0%,var(--amber-600) 100%);transform:translateY(-3px) scale(1.02);box-shadow:var(--shadow-xl),0 10px 25px -5px #f59e0b66;color:#fff}.btn-danger{background:linear-gradient(135deg,var(--rose-500) 0%,var(--rose-600) 100%);color:#fff;box-shadow:0 10px 25px -5px #f43f5e4d}.btn-danger:hover:not(:disabled){background:linear-gradient(135deg,var(--rose-600) 0%,var(--rose-700) 100%);transform:translateY(-3px) scale(1.02);box-shadow:var(--shadow-xl),0 10px 25px -5px #f43f5e66;color:#fff}.btn-info{background:linear-gradient(135deg,var(--cyan-400) 0%,var(--cyan-500) 100%);color:#fff;box-shadow:var(--shadow-cyan)}.btn-info:hover:not(:disabled){background:linear-gradient(135deg,var(--cyan-500) 0%,var(--cyan-600) 100%);transform:translateY(-3px) scale(1.02);box-shadow:var(--shadow-xl),var(--shadow-cyan);color:#fff}.btn-outline-primary{background:transparent;color:var(--indigo-300);border:2px solid var(--purple-500);box-shadow:var(--shadow-sm)}.btn-outline-primary:hover:not(:disabled){background:var(--purple-600);color:#fff;border-color:var(--purple-600);transform:translateY(-3px) scale(1.02);box-shadow:var(--shadow-purple)}.btn-outline-secondary{background:transparent;color:var(--cyan-300);border:2px solid var(--cyan-500);box-shadow:var(--shadow-sm)}.btn-outline-secondary:hover:not(:disabled){background:var(--cyan-500);color:#fff;border-color:var(--cyan-500);transform:translateY(-3px) scale(1.02);box-shadow:var(--shadow-cyan)}.btn-outline-success{background:transparent;color:var(--emerald-300);border:2px solid var(--emerald-500);box-shadow:var(--shadow-sm)}.btn-outline-success:hover:not(:disabled){background:var(--emerald-500);color:#fff;border-color:var(--emerald-500);transform:translateY(-3px) scale(1.02);box-shadow:var(--shadow-emerald)}.btn-outline-warning{background:transparent;color:var(--amber-300);border:2px solid var(--amber-500);box-shadow:var(--shadow-sm)}.btn-outline-warning:hover:not(:disabled){background:var(--amber-500);color:#fff;border-color:var(--amber-500);transform:translateY(-3px) scale(1.02);box-shadow:0 10px 25px -5px #f59e0b4d}.btn-outline-danger{background:transparent;color:var(--rose-300);border:2px solid var(--rose-500);box-shadow:var(--shadow-sm)}.btn-outline-danger:hover:not(:disabled){background:var(--rose-500);color:#fff;border-color:var(--rose-500);transform:translateY(-3px) scale(1.02);box-shadow:0 10px 25px -5px #f43f5e4d}.btn-outline-info{background:transparent;color:var(--cyan-300);border:2px solid var(--cyan-400);box-shadow:var(--shadow-sm)}.btn-outline-info:hover:not(:disabled){background:var(--cyan-400);color:#fff;border-color:var(--cyan-400);transform:translateY(-3px) scale(1.02);box-shadow:var(--shadow-cyan)}.btn-outline-light{background:rgba(255,255,255,.1);color:#fff;border:2px solid rgba(255,255,255,.3);backdrop-filter:blur(10px)}.btn-outline-light:hover:not(:disabled){background:rgba(255,255,255,.2);border-color:#ffffff80;color:#fff;transform:translateY(-3px)}.btn-sm{padding:var(--spacing-xs) var(--spacing-md);font-size:.875rem;border-radius:var(--radius-sm);gap:var(--spacing-xs)}.btn-lg{padding:var(--spacing-lg) var(--spacing-2xl);font-size:1.125rem;border-radius:var(--radius-md);font-weight:700;gap:var(--spacing-md)}.btn-full{width:100%;margin-bottom:var(--spacing-lg)}.btn-social{width:100%;padding:var(--spacing-md);border:2px solid var(--border-color);background:var(--surface-3);color:var(--text-secondary);font-weight:600;transition:all var(--transition-base);gap:var(--spacing-sm)}.btn-social:hover:not(:disabled){border-color:var(--indigo-400);background:rgba(99,102,241,.15);transform:translateY(-2px);color:var(--text-primary)}.btn-group{display:flex;gap:var(--spacing-md)}.btn-group.vertical{flex-direction:column}.btn-group .btn{flex:1}.btn-fab{width:56px;height:56px;border-radius:50%;padding:0;box-shadow:var(--shadow-xl);position:fixed;bottom:var(--spacing-2xl);right:var(--spacing-2xl);z-index:1000;background:linear-gradient(135deg,var(--purple-600) 0%,var(--cyan-500) 100%);color:#fff}.btn-fab:hover{box-shadow:var(--shadow-2xl);transform:scale(1.1) rotate(5deg)}.question-nav-btn{width:48px;height:48px;border-radius:var(--radius);border:2px solid var(--border-color);background:var(--surface-3);color:var(--text-primary);font-weight:600;font-size:1rem;cursor:pointer;transition:all var(--transition-bounce);display:flex;align-items:center;justify-content:center;margin:var(--spacing-xs);box-shadow:var(--shadow-xs)}.question-nav-btn:hover{border-color:var(--indigo-400);color:var(--indigo-300);transform:translateY(-3px) scale(1.05);box-shadow:var(--shadow-md);background:rgba(99,102,241,.15)}.question-nav-btn.answered{background:linear-gradient(135deg,var(--emerald-500) 0%,var(--emerald-600) 100%);border-color:var(--emerald-600);color:#fff;box-shadow:var(--shadow-emerald)}.question-nav-btn.active{background:linear-gradient(135deg,var(--purple-600) 0%,var(--purple-700) 100%);border-color:var(--purple-700);color:#fff;box-shadow:var(--shadow-purple)}.spinner{width:20px;height:20px;border:3px solid transparent;border-top:3px solid currentColor;border-radius:50%;animation:spin .8s linear infinite;margin-right:var(--spacing-xs)}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.spinner-border{border:3px solid currentColor;border-right-color:transparent;border-radius:50%;animation:spin .75s linear infinite}.spinner-border-sm{width:1rem;height:1rem;border-width:2px}.form-control,.form-select{background:var(--surface-input);border:2px solid var(--border-color);border-radius:var(--radius);padding:var(--space-3) var(--space-4);font-family:var(--font-body);font-size:1rem;transition:all var(--transition-base);box-shadow:var(--shadow-xs);color:var(--text-primary);width:100%}.form-control:focus,.form-select:focus{outline:none;border-color:var(--indigo-500);box-shadow:0 0 0 4px #6366f126,var(--shadow-sm);background:var(--surface-input);transform:translateY(-1px)}.form-control::placeholder{color:var(--text-muted);opacity:.7}.form-label{font-family:var(--font-display);font-weight:600;color:var(--text-primary);margin-bottom:var(--space-2);font-size:.9375rem;letter-spacing:-.011em;display:block}.form-text{color:var(--text-muted);font-size:.875rem;margin-top:var(--space-2);line-height:1.5}.form-group{margin-bottom:var(--space-5)}.form-check{display:flex;align-items:center;margin-bottom:var(--space-3)}.form-check-input{width:1.25rem;height:1.25rem;margin-right:var(--space-3);border:2px solid var(--border-color);border-radius:var(--radius-xs);cursor:pointer;transition:all var(--transition-base)}.form-check-input:checked{background-color:var(--indigo-600);border-color:var(--indigo-600)}.form-check-input:focus{box-shadow:0 0 0 4px #6366f126;outline:none}.form-check-label{cursor:pointer;-webkit-user-select:none;user-select:none;color:var(--text-secondary)}.alert{border:2px solid transparent;border-radius:var(--radius-lg);padding:var(--space-5);margin-bottom:var(--space-5);font-size:1rem;position:relative;backdrop-filter:blur(10px);animation:slideIn .3s ease-out}@keyframes slideIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.alert-success{background:rgba(16,185,129,.15);border-color:var(--emerald-500);color:var(--emerald-300)}.alert-warning{background:rgba(245,158,11,.15);border-color:var(--amber-500);color:var(--amber-300)}.alert-danger{background:rgba(244,63,94,.15);border-color:var(--rose-500);color:var(--rose-300)}.alert-info{background:rgba(6,182,212,.15);border-color:var(--cyan-500);color:var(--cyan-300)}.alert-heading{font-family:var(--font-display);font-weight:700;margin-bottom:var(--space-3);font-size:1.125rem}.navbar{box-shadow:var(--shadow-sm);border-bottom:1px solid 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span:nth-child(2){animation-delay:.2s}.typing-indicator span:nth-child(3){animation-delay:.4s}@keyframes typingBounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-10px)}}.results-hero{background:linear-gradient(135deg,var(--purple-600) 0%,var(--cyan-500) 100%);border-radius:var(--radius-2xl);padding:var(--space-10);text-align:center;color:#fff;margin-bottom:var(--space-8);box-shadow:var(--shadow-2xl);position:relative;overflow:hidden}.results-hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 30%,rgba(255,255,255,.1) 0%,transparent 50%),radial-gradient(circle at 80% 70%,rgba(255,255,255,.08) 0%,transparent 50%);pointer-events:none}.results-score-display{font-size:clamp(4rem,10vw,7rem);font-weight:900;font-family:var(--font-display);line-height:1;margin-bottom:var(--space-4);text-shadow:0 4px 20px rgba(0,0,0,.2);animation:scoreCountUp 1s ease-out;position:relative}@keyframes 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100%)}.question-review-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-4)}.question-number{font-weight:700;color:var(--text-muted);font-size:.875rem;text-transform:uppercase;letter-spacing:.05em}.question-result-badge{padding:var(--space-2) var(--space-3);border-radius:var(--radius-full);font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em}.question-result-badge.correct{background:var(--emerald-100);color:var(--emerald-700)}.question-result-badge.incorrect{background:var(--rose-100);color:var(--rose-700)}.time-analysis{background:white;border-radius:var(--radius-xl);padding:var(--space-8);box-shadow:var(--shadow-md);border:2px solid var(--border-color)}.time-spent-visual{display:flex;align-items:flex-end;height:200px;gap:var(--space-2);margin-top:var(--space-6);padding:var(--space-4);background:var(--slate-50);border-radius:var(--radius-lg)}.time-bar{flex:1;background:linear-gradient(180deg,var(--purple-500) 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.btn-outline-secondary{background:transparent;border-color:var(--border-color);color:var(--text-primary)}[data-theme=dark] .btn-outline-primary:hover{background:var(--purple-600);border-color:var(--purple-600);color:#fff}[data-theme=dark] .empty-state-container{color:var(--text-secondary)}[data-theme=dark] .empty-state-icon{opacity:.15}[data-theme=dark] .skeleton,[data-theme=dark] .skeleton-card-avatar,[data-theme=dark] .skeleton-title,[data-theme=dark] .skeleton-subtitle,[data-theme=dark] .skeleton-line,[data-theme=dark] .skeleton-button{background:linear-gradient(90deg,var(--bg-secondary) 0%,var(--bg-tertiary) 50%,var(--bg-secondary) 100%);background-size:200% 100%}[data-theme=dark] .table{color:var(--text-primary)}[data-theme=dark] .table tbody tr{border-color:var(--border-color)}[data-theme=dark] .table tbody tr:hover{background:var(--bg-tertiary)}[data-theme=dark] .modal-content,[data-theme=dark] .modal-content-enhanced{background:var(--card-bg);color:var(--text-primary)}[data-theme=dark] .modal-footer-enhanced{background:var(--bg-secondary);border-color:var(--border-color)}[data-theme=dark] .tooltip-enhanced .tooltip-text{background:var(--bg-tertiary)}[data-theme=dark] .upload-dropzone-enhanced{background:linear-gradient(135deg,rgba(168,85,247,.05) 0%,rgba(6,182,212,.05) 100%);border-color:var(--border-color)}[data-theme=dark] .upload-dropzone-enhanced:hover{background:linear-gradient(135deg,rgba(168,85,247,.1) 0%,rgba(6,182,212,.1) 100%);border-color:var(--purple-500)}[data-theme=dark] code,[data-theme=dark] pre{background:var(--bg-secondary);color:var(--cyan-400);border-color:var(--border-color)}.theme-toggle-fab{position:fixed;bottom:var(--space-6);right:var(--space-6);width:60px;height:60px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--indigo-600) 0%,var(--purple-600) 100%);color:#fff;border:none;box-shadow:var(--shadow-lg),var(--shadow-indigo);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.75rem;transition:all var(--transition-bounce);z-index:1000}.theme-toggle-fab:hover{transform:scale(1.1) rotate(15deg);box-shadow:var(--shadow-2xl),var(--shadow-purple)}[data-theme=dark] .theme-toggle-fab{background:linear-gradient(135deg,var(--amber-400) 0%,var(--amber-500) 100%);color:var(--slate-900);box-shadow:var(--shadow-lg),0 10px 25px -5px #f59e0b66}@keyframes sk-shimmer{0%{background-position:200% center}to{background-position:-200% center}}.sk{border-radius:6px;background:linear-gradient(90deg,var(--slate-200) 0%,var(--slate-100) 40%,var(--slate-200) 100%);background-size:200% 100%;animation:sk-shimmer 1.6s ease-in-out infinite}.sk-dark{border-radius:6px;background:linear-gradient(90deg,rgba(255,255,255,.06) 0%,rgba(255,255,255,.13) 40%,rgba(255,255,255,.06) 100%);background-size:200% 100%;animation:sk-shimmer 1.6s 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auto;border-radius:4px}.skeleton-plans-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:1.5rem}.skeleton-plan-card{background:var(--card-surface, white);border-radius:var(--radius-xl, 1.25rem);padding:1.75rem;border:1px solid var(--card-border, var(--slate-200));box-shadow:var(--shadow-sm);min-height:220px;display:flex;flex-direction:column;gap:.75rem}.skeleton-plan-badge{height:20px;width:80px;border-radius:100px}.skeleton-plan-subject{display:flex;align-items:center;gap:.5rem}.skeleton-plan-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}.skeleton-plan-progress{margin-top:auto;display:flex;flex-direction:column;gap:.4rem}.skeleton-progress-bar{height:8px;border-radius:100px}.skeleton-progress-label{height:12px;width:60px;border-radius:4px}.skeleton-quiz-wrapper{max-width:860px;margin:2rem auto;padding:0 1rem}.skeleton-quiz-card{background:white;border-radius:var(--radius-xl, 1.25rem);padding:2rem;box-shadow:var(--shadow-md);border:1px solid 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var(--slate-200);border-radius:10px}.skeleton-doc-icon{width:36px;height:36px;border-radius:8px;flex-shrink:0}.skeleton-doc-body{flex:1;display:flex;flex-direction:column;gap:.4rem}.skeleton-doc-actions{display:flex;gap:.5rem;flex-shrink:0}.skeleton-doc-btn{width:64px;height:30px;border-radius:6px}.skeleton-quiz-learning-wrapper{max-width:740px;margin:2rem auto;padding:0 1rem;display:flex;flex-direction:column;gap:1.25rem}.skeleton-ql-header{background:white;border-radius:16px;padding:1.5rem 2rem;border:1px solid var(--slate-200);display:flex;flex-direction:column;gap:.75rem}.skeleton-ql-card{background:white;border-radius:16px;padding:2rem;border:1px solid var(--slate-200);display:flex;flex-direction:column;gap:.75rem}@media (max-width: 768px){.skeleton-subject-grid,.skeleton-plans-grid{grid-template-columns:1fr}.skeleton-plan-detail-meta,.skeleton-flashcard-set{flex-wrap:wrap}}@media (max-width: 768px){.navbar-collapse{padding:var(--space-4) 0;border-top:1px solid 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