:root{--color-primary: #4F46E5;--color-primary-hover: #4338CA;--color-primary-light: #EEF2FF;--color-primary-glow: rgba(79, 70, 229, .25);--color-secondary: #7C3AED;--color-secondary-hover: #6D28D9;--color-secondary-light: #F5F3FF;--color-accent: #F59E0B;--color-accent-hover: #D97706;--color-accent-light: #FFFBEB;--color-success: #10B981;--color-success-light: #D1FAE5;--color-success-dark: #059669;--color-error: #EF4444;--color-error-light: #FEE2E2;--color-error-dark: #DC2626;--color-warning: #F59E0B;--color-warning-light: #FEF3C7;--color-info: #3B82F6;--color-info-light: #DBEAFE;--color-bg: #FAFBFF;--color-bg-alt: #F1F5F9;--color-surface: #FFFFFF;--color-surface-hover: #F8FAFC;--color-surface-elevated: #FFFFFF;--color-border: #E2E8F0;--color-border-light: #F1F5F9;--color-text-primary: #1E293B;--color-text-secondary: #64748B;--color-text-tertiary: #94A3B8;--color-text-inverse: #FFFFFF;--color-text-on-primary: #FFFFFF;--color-overlay: rgba(15, 23, 42, .5);--color-shadow: rgba(15, 23, 42, .08);--color-shadow-strong: rgba(15, 23, 42, .16);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", "Consolas", monospace;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 1.875rem;--text-4xl: 2.25rem;--text-5xl: 3rem;--text-6xl: 3.75rem;--leading-tight: 1.2;--leading-snug: 1.375;--leading-normal: 1.5;--leading-relaxed: 1.625;--tracking-tight: -.025em;--tracking-normal: 0;--tracking-wide: .025em;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--space-20: 5rem;--space-24: 6rem;--max-width: 1280px;--max-width-narrow: 960px;--max-width-wide: 1440px;--header-height: 72px;--sidebar-width: 280px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 9999px;--shadow-xs: 0 1px 2px var(--color-shadow);--shadow-sm: 0 1px 3px var(--color-shadow), 0 1px 2px var(--color-shadow);--shadow-md: 0 4px 6px -1px var(--color-shadow), 0 2px 4px -2px var(--color-shadow);--shadow-lg: 0 10px 15px -3px var(--color-shadow), 0 4px 6px -4px var(--color-shadow);--shadow-xl: 0 20px 25px -5px var(--color-shadow-strong), 0 8px 10px -6px var(--color-shadow);--shadow-glow: 0 0 20px var(--color-primary-glow);--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .2s cubic-bezier(.4, 0, .2, 1);--transition-slow: .3s cubic-bezier(.4, 0, .2, 1);--transition-spring: .5s cubic-bezier(.34, 1.56, .64, 1);--z-dropdown: 100;--z-sticky: 200;--z-fixed: 300;--z-overlay: 400;--z-modal: 500;--z-toast: 600}[data-theme=dark]{--color-primary: #818CF8;--color-primary-hover: #6366F1;--color-primary-light: rgba(129, 140, 248, .12);--color-primary-glow: rgba(129, 140, 248, .3);--color-secondary: #A78BFA;--color-secondary-hover: #8B5CF6;--color-secondary-light: rgba(167, 139, 250, .12);--color-accent: #FBBF24;--color-accent-hover: #F59E0B;--color-accent-light: rgba(251, 191, 36, .12);--color-success: #34D399;--color-success-light: rgba(52, 211, 153, .12);--color-success-dark: #10B981;--color-error: #F87171;--color-error-light: rgba(248, 113, 113, .12);--color-error-dark: #EF4444;--color-warning: #FBBF24;--color-warning-light: rgba(251, 191, 36, .12);--color-info: #60A5FA;--color-info-light: rgba(96, 165, 250, .12);--color-bg: #0B1120;--color-bg-alt: #111827;--color-surface: #1E293B;--color-surface-hover: #263348;--color-surface-elevated: #253245;--color-border: #334155;--color-border-light: #1E293B;--color-text-primary: #F1F5F9;--color-text-secondary: #94A3B8;--color-text-tertiary: #64748B;--color-text-inverse: #0F172A;--color-text-on-primary: #FFFFFF;--color-overlay: rgba(0, 0, 0, .65);--color-shadow: rgba(0, 0, 0, .3);--color-shadow-strong: rgba(0, 0, 0, .5)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;text-size-adjust:100%}body{font-family:var(--font-sans);font-size:var(--text-base);line-height:var(--leading-normal);color:var(--color-text-primary);background-color:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color var(--transition-slow),color var(--transition-slow);min-height:100vh}#root{min-height:100vh;display:flex;flex-direction:column}a{color:var(--color-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-primary-hover)}img{max-width:100%;display:block}button{cursor:pointer;font-family:inherit;border:none;background:none;font-size:inherit}input,textarea,select{font-family:inherit;font-size:inherit;border:none;outline:none;background:none}ul,ol{list-style:none}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:var(--leading-tight);letter-spacing:var(--tracking-tight);color:var(--color-text-primary)}h1{font-size:var(--text-4xl)}h2{font-size:var(--text-3xl)}h3{font-size:var(--text-2xl)}h4{font-size:var(--text-xl)}h5{font-size:var(--text-lg)}h6{font-size:var(--text-base);font-weight:600}p{color:var(--color-text-secondary);line-height:var(--leading-relaxed)}::selection{background-color:var(--color-primary);color:var(--color-text-on-primary)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--color-bg-alt)}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-text-tertiary)}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 var(--space-6)}.container--narrow{max-width:var(--max-width-narrow)}.container--wide{max-width:var(--max-width-wide)}.section{padding:var(--space-20) 0}.section--sm{padding:var(--space-12) 0}.section--lg{padding:var(--space-24) 0}.section__header{text-align:center;margin-bottom:var(--space-12)}.section__title{font-size:var(--text-3xl);font-weight:800;margin-bottom:var(--space-4)}.section__subtitle{font-size:var(--text-lg);color:var(--color-text-secondary);max-width:640px;margin:0 auto}.grid{display:grid;gap:var(--space-6)}.grid--2{grid-template-columns:repeat(2,1fr)}.grid--3{grid-template-columns:repeat(3,1fr)}.grid--4{grid-template-columns:repeat(4,1fr)}@media(max-width:1024px){.grid--4,.grid--3{grid-template-columns:repeat(2,1fr)}}@media(max-width:640px){.grid--4,.grid--3,.grid--2{grid-template-columns:1fr}}.flex{display:flex}.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}.items-start{align-items:flex-start}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-1{gap:var(--space-1)}.gap-2{gap:var(--space-2)}.gap-3{gap:var(--space-3)}.gap-4{gap:var(--space-4)}.gap-6{gap:var(--space-6)}.gap-8{gap:var(--space-8)}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.font-medium{font-weight:500}.font-semibold{font-weight:600}.font-bold{font-weight:700}.text-sm{font-size:var(--text-sm)}.text-base{font-size:var(--text-base)}.text-lg{font-size:var(--text-lg)}.text-primary{color:var(--color-primary)}.text-secondary{color:var(--color-text-secondary)}.text-accent{color:var(--color-accent)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInRight{0%{transform:translate(100%)}to{transform:translate(0)}}@keyframes slideInLeft{0%{transform:translate(-100%)}to{transform:translate(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes countUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes gradientShift{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}.animate-fade-in{animation:fadeIn var(--transition-base) ease-out}.animate-fade-in-up{animation:fadeInUp var(--transition-slow) ease-out}.animate-fade-in-down{animation:fadeInDown var(--transition-slow) ease-out}.animate-scale-in{animation:scaleIn var(--transition-base) ease-out}.delay-1{animation-delay:.1s;animation-fill-mode:both}.delay-2{animation-delay:.2s;animation-fill-mode:both}.delay-3{animation-delay:.3s;animation-fill-mode:both}.delay-4{animation-delay:.4s;animation-fill-mode:both}.delay-5{animation-delay:.5s;animation-fill-mode:both}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);font-weight:600;border-radius:var(--radius-md);transition:all var(--transition-fast);white-space:nowrap;-webkit-user-select:none;user-select:none;line-height:1}.btn:active{transform:scale(.98)}.btn--sm{padding:var(--space-2) var(--space-4);font-size:var(--text-sm)}.btn--md{padding:var(--space-3) var(--space-6);font-size:var(--text-base)}.btn--lg{padding:var(--space-4) var(--space-8);font-size:var(--text-lg)}.btn--primary{background:var(--color-primary);color:var(--color-text-on-primary);box-shadow:var(--shadow-sm)}.btn--primary:hover{background:var(--color-primary-hover);box-shadow:var(--shadow-glow);transform:translateY(-1px)}.btn--secondary{background:var(--color-secondary);color:var(--color-text-on-primary)}.btn--secondary:hover{background:var(--color-secondary-hover);transform:translateY(-1px)}.btn--outline{background:transparent;color:var(--color-primary);border:2px solid var(--color-primary)}.btn--outline:hover{background:var(--color-primary);color:var(--color-text-on-primary)}.btn--ghost{background:transparent;color:var(--color-text-secondary)}.btn--ghost:hover{background:var(--color-primary-light);color:var(--color-primary)}.btn--accent{background:var(--color-accent);color:#1a1a1a;font-weight:700}.btn--accent:hover{background:var(--color-accent-hover);transform:translateY(-1px)}.btn--disabled,.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.btn--loading{position:relative;color:transparent}.btn--loading:after{content:"";position:absolute;width:18px;height:18px;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:spin .6s linear infinite}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6);transition:all var(--transition-base)}.card:hover{border-color:var(--color-primary);box-shadow:var(--shadow-lg);transform:translateY(-4px)}.card--flat:hover{transform:none;box-shadow:none}.card--elevated{box-shadow:var(--shadow-md);border-color:transparent}.card--glass{background:#ffffffb3;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.3)}[data-theme=dark] .card--glass{background:#1e293bb3;border:1px solid rgba(51,65,85,.5)}.card__image{width:100%;height:200px;object-fit:cover;border-radius:var(--radius-md);margin-bottom:var(--space-4)}.card__title{font-size:var(--text-xl);font-weight:700;margin-bottom:var(--space-2)}.card__text{color:var(--color-text-secondary);font-size:var(--text-sm);line-height:var(--leading-relaxed)}.badge{display:inline-flex;align-items:center;gap:var(--space-1);padding:var(--space-1) var(--space-3);font-size:var(--text-xs);font-weight:600;border-radius:var(--radius-full);letter-spacing:var(--tracking-wide);text-transform:uppercase;line-height:1.5}.badge--primary{background:var(--color-primary-light);color:var(--color-primary)}.badge--secondary{background:var(--color-secondary-light);color:var(--color-secondary)}.badge--success{background:var(--color-success-light);color:var(--color-success-dark)}.badge--error{background:var(--color-error-light);color:var(--color-error-dark)}.badge--warning{background:var(--color-warning-light);color:var(--color-accent)}.badge--info{background:var(--color-info-light);color:var(--color-info)}.badge--accent{background:var(--color-accent-light);color:var(--color-accent)}.input-group{display:flex;flex-direction:column;gap:var(--space-2)}.input-group label{font-size:var(--text-sm);font-weight:600;color:var(--color-text-primary)}.input{width:100%;padding:var(--space-3) var(--space-4);background:var(--color-surface);border:2px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-primary);font-size:var(--text-base);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.input:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-glow)}.input::placeholder{color:var(--color-text-tertiary)}textarea.input{resize:vertical;min-height:120px}.progress{width:100%;height:8px;background:var(--color-bg-alt);border-radius:var(--radius-full);overflow:hidden}.progress__bar{height:100%;background:linear-gradient(90deg,var(--color-primary),var(--color-secondary));border-radius:var(--radius-full);transition:width var(--transition-slow)}.progress--lg{height:12px}.progress--success .progress__bar{background:var(--color-success)}.progress--error .progress__bar{background:var(--color-error)}.loader{display:flex;align-items:center;justify-content:center;padding:var(--space-12)}.loader__spinner{width:40px;height:40px;border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .8s linear infinite}.loader--sm .loader__spinner{width:24px;height:24px;border-width:2px}.loader--lg .loader__spinner{width:56px;height:56px;border-width:4px}.loader--page{min-height:60vh}.theme-toggle{position:relative;width:52px;height:28px;background:var(--color-bg-alt);border:2px solid var(--color-border);border-radius:var(--radius-full);cursor:pointer;transition:all var(--transition-base);display:flex;align-items:center;padding:0 4px}.theme-toggle:hover{border-color:var(--color-primary)}.theme-toggle__thumb{width:20px;height:20px;background:var(--color-primary);border-radius:50%;transition:transform var(--transition-spring);display:flex;align-items:center;justify-content:center}[data-theme=dark] .theme-toggle__thumb{transform:translate(22px)}.theme-toggle__icon{width:12px;height:12px;color:#fff}.timer{display:inline-flex;align-items:center;gap:var(--space-2);font-family:var(--font-mono);font-weight:600;font-size:var(--text-lg);color:var(--color-text-primary);padding:var(--space-2) var(--space-4);background:var(--color-surface);border:2px solid var(--color-border);border-radius:var(--radius-md)}.timer--warning{border-color:var(--color-warning);color:var(--color-warning);animation:pulse 1s ease-in-out infinite}.timer--danger{border-color:var(--color-error);color:var(--color-error);animation:pulse .6s ease-in-out infinite}.header{position:sticky;top:0;z-index:var(--z-sticky);background:var(--color-surface);border-bottom:1px solid var(--color-border);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);transition:background-color var(--transition-slow),border-color var(--transition-slow)}[data-theme=dark] .header{background:#0b1120e6}.header__inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-height)}.header__logo{display:flex;align-items:center;gap:var(--space-3);text-decoration:none;color:var(--color-text-primary)}.header__logo-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:var(--text-lg)}.header__logo-text{font-size:var(--text-xl);font-weight:800;letter-spacing:var(--tracking-tight)}.header__logo-text span{color:var(--color-primary)}.header__nav{display:flex;align-items:center;gap:var(--space-1)}.header__nav-link{padding:var(--space-2) var(--space-3);font-size:var(--text-sm);font-weight:500;color:var(--color-text-secondary);border-radius:var(--radius-md);transition:all var(--transition-fast);text-decoration:none}.header__nav-link:hover,.header__nav-link--active{color:var(--color-primary);background:var(--color-primary-light)}.header__actions{display:flex;align-items:center;gap:var(--space-3)}.header__hamburger{display:none;width:40px;height:40px;align-items:center;justify-content:center;border-radius:var(--radius-md);color:var(--color-text-primary);transition:background var(--transition-fast)}.header__hamburger:hover{background:var(--color-bg-alt)}@media(max-width:1024px){.header__nav{display:none}.header__hamburger{display:flex}}@media(max-width:640px){.header__logo-text{font-size:var(--text-base)}}.mobile-nav__overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--color-overlay);z-index:var(--z-overlay);animation:fadeIn var(--transition-fast) ease-out}.mobile-nav{position:fixed;top:0;right:0;bottom:0;width:min(320px,85vw);background:var(--color-surface);z-index:var(--z-modal);padding:var(--space-6);display:flex;flex-direction:column;animation:slideInRight var(--transition-slow) ease-out;box-shadow:var(--shadow-xl)}.mobile-nav__header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-8)}.mobile-nav__close{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-md);color:var(--color-text-secondary);transition:all var(--transition-fast)}.mobile-nav__close:hover{background:var(--color-bg-alt);color:var(--color-text-primary)}.mobile-nav__links{display:flex;flex-direction:column;gap:var(--space-1);flex:1}.mobile-nav__link{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);font-size:var(--text-base);font-weight:500;color:var(--color-text-secondary);border-radius:var(--radius-md);transition:all var(--transition-fast);text-decoration:none}.mobile-nav__link:hover,.mobile-nav__link--active{background:var(--color-primary-light);color:var(--color-primary)}.mobile-nav__link svg{width:20px;height:20px;flex-shrink:0}.footer{background:var(--color-surface);border-top:1px solid var(--color-border);margin-top:auto;transition:background-color var(--transition-slow),border-color var(--transition-slow)}.footer__top{padding:var(--space-16) 0;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:var(--space-10)}@media(max-width:1024px){.footer__top{grid-template-columns:1fr 1fr}}@media(max-width:640px){.footer__top{grid-template-columns:1fr}}.footer__brand p{margin-top:var(--space-4);font-size:var(--text-sm);max-width:320px}.footer__social{display:flex;gap:var(--space-3);margin-top:var(--space-6)}.footer__social-link{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-full);background:var(--color-bg-alt);color:var(--color-text-secondary);transition:all var(--transition-fast)}.footer__social-link:hover{background:var(--color-primary);color:#fff;transform:translateY(-2px)}.footer__heading{font-size:var(--text-sm);font-weight:700;text-transform:uppercase;letter-spacing:var(--tracking-wide);color:var(--color-text-primary);margin-bottom:var(--space-4)}.footer__links{display:flex;flex-direction:column;gap:var(--space-3)}.footer__link{font-size:var(--text-sm);color:var(--color-text-secondary);transition:color var(--transition-fast);text-decoration:none}.footer__link:hover{color:var(--color-primary)}.footer__bottom{padding:var(--space-6) 0;border-top:1px solid var(--color-border);display:flex;align-items:center;justify-content:space-between;font-size:var(--text-sm);color:var(--color-text-tertiary)}@media(max-width:640px){.footer__bottom{flex-direction:column;gap:var(--space-3);text-align:center}}.hero{position:relative;overflow:hidden;padding:var(--space-24) 0 var(--space-20);background:linear-gradient(135deg,#4f46e5,#7c3aed,#2563eb);background-size:200% 200%;animation:gradientShift 8s ease-in-out infinite}[data-theme=dark] .hero{background:linear-gradient(135deg,#1e1b4b,#312e81,#1e3a5f);background-size:200% 200%;animation:gradientShift 8s ease-in-out infinite}.hero__bg-pattern{position:absolute;top:0;right:0;bottom:0;left:0;background-image:radial-gradient(circle at 20% 50%,rgba(255,255,255,.08) 0%,transparent 50%),radial-gradient(circle at 80% 20%,rgba(255,255,255,.06) 0%,transparent 40%),radial-gradient(circle at 40% 80%,rgba(255,255,255,.04) 0%,transparent 40%);pointer-events:none}.hero__content{position:relative;z-index:1;text-align:center;color:#fff;max-width:800px;margin:0 auto}.hero__badge{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);background:#ffffff26;border:1px solid rgba(255,255,255,.25);border-radius:var(--radius-full);font-size:var(--text-sm);font-weight:500;color:#fff;margin-bottom:var(--space-6);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);animation:fadeInDown var(--transition-slow) ease-out}.hero__title{font-size:var(--text-5xl);font-weight:900;line-height:1.1;margin-bottom:var(--space-6);color:#fff;animation:fadeInUp .5s ease-out .1s both}.hero__title-accent{background:linear-gradient(135deg,#fbbf24,#f59e0b);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.hero__subtitle{font-size:var(--text-xl);color:#ffffffd9;margin-bottom:var(--space-10);line-height:var(--leading-relaxed);animation:fadeInUp .5s ease-out .2s both}.hero__actions{display:flex;align-items:center;justify-content:center;gap:var(--space-4);flex-wrap:wrap;animation:fadeInUp .5s ease-out .3s both}.hero__actions .btn--accent{box-shadow:0 4px 14px #f59e0b66}.hero__actions .btn--outline{border-color:#ffffff80;color:#fff}.hero__actions .btn--outline:hover{background:#ffffff26;border-color:#fff;color:#fff}.hero__stats{display:flex;align-items:center;justify-content:center;gap:var(--space-10);margin-top:var(--space-12);animation:fadeInUp .5s ease-out .4s both}.hero__stat{text-align:center}.hero__stat-number{font-size:var(--text-3xl);font-weight:800;color:#fff}.hero__stat-label{font-size:var(--text-sm);color:#ffffffb3;margin-top:var(--space-1)}@media(max-width:768px){.hero{padding:var(--space-16) 0 var(--space-12)}.hero__title{font-size:var(--text-3xl)}.hero__subtitle{font-size:var(--text-base)}.hero__stats{gap:var(--space-6)}.hero__stat-number{font-size:var(--text-2xl)}}@media(max-width:480px){.hero__title{font-size:var(--text-2xl)}.hero__stats{flex-wrap:wrap;gap:var(--space-4)}}.features{padding:var(--space-20) 0}.feature-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-8);text-align:center;transition:all var(--transition-base);cursor:pointer;text-decoration:none;display:block;color:inherit}.feature-card:hover{border-color:var(--color-primary);box-shadow:var(--shadow-lg);transform:translateY(-6px)}.feature-card__icon{width:64px;height:64px;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;margin:0 auto var(--space-5);transition:transform var(--transition-base)}.feature-card:hover .feature-card__icon{transform:scale(1.1)}.feature-card__icon--primary{background:var(--color-primary-light);color:var(--color-primary)}.feature-card__icon--secondary{background:var(--color-secondary-light);color:var(--color-secondary)}.feature-card__icon--accent{background:var(--color-accent-light);color:var(--color-accent)}.feature-card__icon--success{background:var(--color-success-light);color:var(--color-success)}.feature-card__icon--info{background:var(--color-info-light);color:var(--color-info)}.feature-card__icon--error{background:var(--color-error-light);color:var(--color-error)}.feature-card__title{font-size:var(--text-lg);font-weight:700;margin-bottom:var(--space-2)}.feature-card__desc{font-size:var(--text-sm);color:var(--color-text-secondary);line-height:var(--leading-relaxed)}.exam-card{display:flex;align-items:center;gap:var(--space-4);padding:var(--space-5);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);transition:all var(--transition-base);text-decoration:none;color:inherit}.exam-card:hover{border-color:var(--color-primary);box-shadow:var(--shadow-md);transform:translateY(-2px)}.exam-card__icon{width:48px;height:48px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:var(--text-xl)}.exam-card__info{flex:1;min-width:0}.exam-card__name{font-size:var(--text-base);font-weight:600;margin-bottom:var(--space-1);color:var(--color-text-primary)}.exam-card__meta{font-size:var(--text-xs);color:var(--color-text-tertiary)}.exam-card__arrow{color:var(--color-text-tertiary);transition:transform var(--transition-fast),color var(--transition-fast)}.exam-card:hover .exam-card__arrow{color:var(--color-primary);transform:translate(4px)}.stats{padding:var(--space-16) 0;background:var(--color-bg-alt)}.stats__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-6)}.stat-item{text-align:center;padding:var(--space-6)}.stat-item__number{font-size:var(--text-4xl);font-weight:900;color:var(--color-primary);font-family:var(--font-mono)}.stat-item__label{font-size:var(--text-sm);color:var(--color-text-secondary);margin-top:var(--space-2);font-weight:500}@media(max-width:768px){.stats__grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:480px){.stat-item__number{font-size:var(--text-3xl)}}.quiz-container{max-width:800px;margin:0 auto}.quiz-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-6);flex-wrap:wrap;gap:var(--space-4)}.quiz-header__info h2{font-size:var(--text-xl);margin-bottom:var(--space-1)}.quiz-header__meta{font-size:var(--text-sm);color:var(--color-text-secondary)}.question-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-8);margin-bottom:var(--space-6)}.question-card__number{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;background:var(--color-primary-light);color:var(--color-primary);border-radius:var(--radius-full);font-size:var(--text-sm);font-weight:700;margin-bottom:var(--space-4)}.question-card__text{font-size:var(--text-lg);font-weight:600;color:var(--color-text-primary);margin-bottom:var(--space-6);line-height:var(--leading-relaxed)}.options{display:flex;flex-direction:column;gap:var(--space-3)}.option{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-4);background:var(--color-bg-alt);border:2px solid transparent;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);font-size:var(--text-base);color:var(--color-text-primary)}.option:hover,.option--selected{border-color:var(--color-primary);background:var(--color-primary-light)}.option--correct{border-color:var(--color-success);background:var(--color-success-light)}.option--wrong{border-color:var(--color-error);background:var(--color-error-light)}.option__marker{width:28px;height:28px;border:2px solid var(--color-border);border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:var(--text-sm);font-weight:600;color:var(--color-text-secondary);transition:all var(--transition-fast)}.option--selected .option__marker{border-color:var(--color-primary);background:var(--color-primary);color:#fff}.option--correct .option__marker{border-color:var(--color-success);background:var(--color-success);color:#fff}.option--wrong .option__marker{border-color:var(--color-error);background:var(--color-error);color:#fff}.option__text{flex:1}.explanation{margin-top:var(--space-4);padding:var(--space-4);background:var(--color-info-light);border-radius:var(--radius-md);border-left:4px solid var(--color-info)}.explanation__title{font-size:var(--text-sm);font-weight:700;color:var(--color-info);margin-bottom:var(--space-2)}.explanation__text{font-size:var(--text-sm);color:var(--color-text-secondary);line-height:var(--leading-relaxed)}.question-palette{display:grid;grid-template-columns:repeat(5,1fr);gap:var(--space-2);margin-bottom:var(--space-6)}.question-palette__btn{width:40px;height:40px;border-radius:var(--radius-md);border:2px solid var(--color-border);background:var(--color-surface);color:var(--color-text-secondary);font-size:var(--text-sm);font-weight:600;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-fast)}.question-palette__btn:hover{border-color:var(--color-primary)}.question-palette__btn--current{border-color:var(--color-primary);background:var(--color-primary);color:#fff}.question-palette__btn--answered{border-color:var(--color-success);background:var(--color-success-light);color:var(--color-success-dark)}.question-palette__btn--review{border-color:var(--color-warning);background:var(--color-warning-light);color:var(--color-accent)}.results{text-align:center;padding:var(--space-12) var(--space-6)}.results__score{font-size:var(--text-6xl);font-weight:900;color:var(--color-primary);font-family:var(--font-mono)}.results__label{font-size:var(--text-lg);color:var(--color-text-secondary);margin-top:var(--space-2)}.results__breakdown{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-4);margin-top:var(--space-8);max-width:480px;margin-left:auto;margin-right:auto}.results__stat{padding:var(--space-4);border-radius:var(--radius-md)}.results__stat--correct{background:var(--color-success-light)}.results__stat--wrong{background:var(--color-error-light)}.results__stat--skipped{background:var(--color-bg-alt)}.results__stat-number{font-size:var(--text-2xl);font-weight:800}.results__stat--correct .results__stat-number{color:var(--color-success-dark)}.results__stat--wrong .results__stat-number{color:var(--color-error-dark)}.results__stat--skipped .results__stat-number{color:var(--color-text-tertiary)}.results__stat-label{font-size:var(--text-xs);color:var(--color-text-secondary);margin-top:var(--space-1);font-weight:500}@media(max-width:480px){.results__score{font-size:var(--text-4xl)}.results__breakdown{grid-template-columns:1fr}}.syllabus-tree{display:flex;flex-direction:column;gap:var(--space-4)}.syllabus-section{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden}.syllabus-section__header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-5) var(--space-6);cursor:pointer;transition:background var(--transition-fast)}.syllabus-section__header:hover{background:var(--color-bg-alt)}.syllabus-section__title{font-size:var(--text-base);font-weight:600;display:flex;align-items:center;gap:var(--space-3)}.syllabus-section__chevron{transition:transform var(--transition-fast);color:var(--color-text-tertiary)}.syllabus-section--open .syllabus-section__chevron{transform:rotate(180deg)}.syllabus-section__body{padding:0 var(--space-6) var(--space-5)}.syllabus-topic{padding:var(--space-3) var(--space-4);margin-left:var(--space-8);border-left:2px solid var(--color-border);font-size:var(--text-sm);color:var(--color-text-secondary);transition:all var(--transition-fast)}.syllabus-topic:hover{border-left-color:var(--color-primary);color:var(--color-primary);background:var(--color-primary-light);border-radius:0 var(--radius-sm) var(--radius-sm) 0}.update-card{display:flex;gap:var(--space-4);padding:var(--space-5);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);transition:all var(--transition-base)}.update-card:hover{border-color:var(--color-primary);box-shadow:var(--shadow-sm)}.update-card__icon{width:44px;height:44px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;flex-shrink:0}.update-card__icon--new{background:var(--color-primary-light);color:var(--color-primary)}.update-card__icon--urgent{background:var(--color-error-light);color:var(--color-error)}.update-card__icon--info{background:var(--color-info-light);color:var(--color-info)}.update-card__icon--success{background:var(--color-success-light);color:var(--color-success)}.update-card__body{flex:1}.update-card__title{font-size:var(--text-base);font-weight:600;margin-bottom:var(--space-1)}.update-card__text{font-size:var(--text-sm);color:var(--color-text-secondary);line-height:var(--leading-relaxed)}.update-card__date{font-size:var(--text-xs);color:var(--color-text-tertiary);margin-top:var(--space-2)}.page-header{padding:var(--space-10) 0;background:var(--color-bg-alt);border-bottom:1px solid var(--color-border)}.page-header__breadcrumb{display:flex;align-items:center;gap:var(--space-2);font-size:var(--text-sm);color:var(--color-text-tertiary);margin-bottom:var(--space-3)}.page-header__breadcrumb a{color:var(--color-text-tertiary);text-decoration:none;transition:color var(--transition-fast)}.page-header__breadcrumb a:hover{color:var(--color-primary)}.page-header__title{font-size:var(--text-3xl);font-weight:800}.page-header__subtitle{font-size:var(--text-lg);color:var(--color-text-secondary);margin-top:var(--space-2)}@media(max-width:640px){.page-header__title{font-size:var(--text-2xl)}.page-header__subtitle{font-size:var(--text-base)}}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-10)}@media(max-width:768px){.contact-grid{grid-template-columns:1fr}}.contact-info-card{display:flex;align-items:flex-start;gap:var(--space-4);padding:var(--space-5);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg)}.contact-info-card__icon{width:48px;height:48px;border-radius:var(--radius-md);background:var(--color-primary-light);color:var(--color-primary);display:flex;align-items:center;justify-content:center;flex-shrink:0}.contact-info-card__title{font-size:var(--text-base);font-weight:600;margin-bottom:var(--space-1)}.contact-info-card__text{font-size:var(--text-sm);color:var(--color-text-secondary)}.about-values{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-6)}@media(max-width:768px){.about-values{grid-template-columns:1fr}}.value-card{text-align:center;padding:var(--space-8);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);transition:all var(--transition-base)}.value-card:hover{border-color:var(--color-primary);box-shadow:var(--shadow-md)}.value-card__icon{width:64px;height:64px;border-radius:var(--radius-full);background:var(--color-primary-light);color:var(--color-primary);display:flex;align-items:center;justify-content:center;margin:0 auto var(--space-5)}.value-card__title{font-size:var(--text-lg);font-weight:700;margin-bottom:var(--space-2)}.value-card__desc{font-size:var(--text-sm);color:var(--color-text-secondary);line-height:var(--leading-relaxed)}.filter-tabs{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-1);background:var(--color-bg-alt);border-radius:var(--radius-full);overflow-x:auto;margin-bottom:var(--space-8)}.filter-tab{padding:var(--space-2) var(--space-5);font-size:var(--text-sm);font-weight:500;color:var(--color-text-secondary);border-radius:var(--radius-full);white-space:nowrap;transition:all var(--transition-fast);cursor:pointer}.filter-tab:hover{color:var(--color-text-primary)}.filter-tab--active{background:var(--color-surface);color:var(--color-primary);font-weight:600;box-shadow:var(--shadow-sm)}.material-card{display:flex;align-items:center;gap:var(--space-5);padding:var(--space-5);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);transition:all var(--transition-base)}.material-card:hover{border-color:var(--color-primary);box-shadow:var(--shadow-md);transform:translateY(-2px)}.material-card__icon{width:56px;height:56px;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:24px}.material-card__body{flex:1;min-width:0}.material-card__title{font-size:var(--text-base);font-weight:600;margin-bottom:var(--space-1)}.material-card__meta{font-size:var(--text-sm);color:var(--color-text-secondary);display:flex;align-items:center;gap:var(--space-3);flex-wrap:wrap}.material-card__actions{display:flex;align-items:center;gap:var(--space-2);flex-shrink:0}@media(max-width:640px){.material-card{flex-direction:column;align-items:flex-start}.material-card__actions{width:100%}.material-card__actions .btn{flex:1}}.empty-state{text-align:center;padding:var(--space-16) var(--space-6)}.empty-state__icon{width:80px;height:80px;border-radius:var(--radius-full);background:var(--color-bg-alt);color:var(--color-text-tertiary);display:flex;align-items:center;justify-content:center;margin:0 auto var(--space-6)}.empty-state__title{font-size:var(--text-xl);font-weight:700;margin-bottom:var(--space-2)}.empty-state__text{font-size:var(--text-base);color:var(--color-text-secondary);max-width:400px;margin:0 auto}.page-enter{animation:fadeInUp .3s ease-out}.cta-section{padding:var(--space-20) 0;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-secondary) 100%);text-align:center;color:#fff}[data-theme=dark] .cta-section{background:linear-gradient(135deg,#312e81,#4c1d95)}.cta-section h2{font-size:var(--text-3xl);font-weight:800;color:#fff;margin-bottom:var(--space-4)}.cta-section p{font-size:var(--text-lg);color:#ffffffd9;margin-bottom:var(--space-8);max-width:560px;margin-left:auto;margin-right:auto}.search-bar{position:relative;max-width:480px;margin:0 auto}.search-bar__input{width:100%;padding:var(--space-4) var(--space-6);padding-left:var(--space-12);background:var(--color-surface);border:2px solid var(--color-border);border-radius:var(--radius-full);font-size:var(--text-base);color:var(--color-text-primary);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.search-bar__input:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-glow)}.search-bar__input::placeholder{color:var(--color-text-tertiary)}.search-bar__icon{position:absolute;left:var(--space-4);top:50%;transform:translateY(-50%);color:var(--color-text-tertiary)}.tabs{display:flex;gap:var(--space-1);border-bottom:2px solid var(--color-border);margin-bottom:var(--space-6);overflow-x:auto}.tab{padding:var(--space-3) var(--space-5);font-size:var(--text-sm);font-weight:500;color:var(--color-text-secondary);border-bottom:2px solid transparent;margin-bottom:-2px;white-space:nowrap;cursor:pointer;transition:all var(--transition-fast)}.tab:hover{color:var(--color-primary)}.tab--active{color:var(--color-primary);border-bottom-color:var(--color-primary);font-weight:600}.mock-test-layout{display:grid;grid-template-columns:1fr 300px;gap:var(--space-6);align-items:start}.mock-test-sidebar{position:sticky;top:calc(var(--header-height) + var(--space-4));background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6)}@media(max-width:1024px){.mock-test-layout{grid-template-columns:1fr}.mock-test-sidebar{position:static;order:-1}}main{flex:1}
