.header{display:flex;align-items:center;justify-content:space-between;padding:.5rem 1rem;background-color:var(--main-bg-elevated);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);gap:1rem}.header__left{display:flex;align-items:center;gap:1.25rem;flex:0 1 auto;min-width:0}.header__brand{display:flex;align-items:center;gap:.5rem;flex-shrink:0}.header__logo{width:2.25rem;height:2.25rem;display:flex;align-items:center;justify-content:center;background:var(--accent);color:#fff;border-radius:.75rem;box-shadow:0 4px 14px var(--accent-glow)}.header__logo svg{flex-shrink:0}.header__logo svg path{stroke:#fff}.header__title{font-weight:600;color:var(--text-primary)}.header__nav{flex-shrink:0}.header__nav-list{display:flex;list-style:none;margin:0;padding:.375rem;gap:.25rem;background:var(--surface);border-radius:.75rem;border:1px solid var(--border)}.header__nav-link{display:flex;align-items:center;gap:.5rem;padding:.5rem 1.25rem;background:transparent;border:none;border-radius:.5rem;color:var(--text-muted-strong);font-size:.875rem;font-weight:700;cursor:pointer;transition:color .2s,background .2s}.header__nav-link:hover{color:var(--text-primary);background:var(--surface-hover)}.header__nav-link--active{background:var(--surface-hover);color:var(--text-primary);box-shadow:var(--shadow-sm)}.header__nav-icon-svg{flex-shrink:0;color:inherit}.header__actions{display:flex;align-items:center;gap:1rem;flex-shrink:0}.header__actions-divider{width:1px;height:1.5rem;background:var(--border-strong);flex-shrink:0}.header__icon-btn{padding:.5rem;background:transparent;border:none;color:var(--text-muted);cursor:pointer;position:relative;transition:color .2s}.header__icon-btn:hover{color:var(--text-primary)}.header__icon-btn--badge:after{content:"";position:absolute;top:.35rem;right:.35rem;width:.5rem;height:.5rem;background:var(--danger);border-radius:50%}.header__icon{display:block;width:1.25rem;height:1.25rem}.header__streak-wrapper{position:relative}.header__streak-btn{padding:0;background:transparent;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center}.header__user{display:flex;align-items:center;gap:.75rem}.header__user-info{display:flex;flex-direction:column;align-items:flex-end}.header__user-name-wrapper{display:flex;align-items:center;gap:.5rem}.header__user-name{font-size:.875rem;color:var(--text-primary);font-weight:500}.header__level-badge{font-size:.7rem;font-weight:800;text-transform:uppercase;background:var(--accent);color:#fff;padding:.125rem .375rem;border-radius:.25rem;letter-spacing:.025em;box-shadow:0 0 8px var(--accent-glow)}.header__user-xp{font-size:.75rem;color:var(--text-primary);display:flex;align-items:center;gap:.25rem}.header__xp-icon{display:inline-block;width:.875rem;height:.875rem;background:var(--accent);border-radius:50%}.header__avatar{width:2.25rem;height:2.25rem;border-radius:50%;background:var(--surface-hover);overflow:hidden}.header__avatar-inner{display:block;width:100%;height:100%;background:linear-gradient(135deg,var(--text-primary) 0%,var(--accent) 100%);opacity:.9}.header__auth{display:flex;align-items:center;gap:.5rem}.header__auth-btn{padding:.5rem 1rem;border-radius:.5rem;font-size:.875rem;font-weight:500;cursor:pointer;border:none}.header__auth-btn--register{background:transparent;color:var(--text-muted);border:1px solid var(--surface-hover)}.header__auth-btn--register:hover{color:var(--text-primary);border-color:var(--text-muted-strong)}.header__auth-btn--login{background:var(--accent);color:#fff}.header__auth-btn--login:hover{background:var(--accent-hover)}.header__streak-info{position:absolute;top:100%;right:0;margin-top:.5rem;background:var(--surface);border:1px solid var(--border);border-radius:.75rem;padding:.75rem 1rem;font-size:.875rem;color:var(--text-primary);white-space:nowrap;z-index:1000;box-shadow:var(--shadow-md)}.header__streak-info p{margin:.25rem 0;line-height:1.4}.streak-counter{display:flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:var(--accent-glow);border:1px solid var(--border-strong);border-radius:.5rem;color:var(--text-primary);font-weight:600;font-size:.95rem;box-shadow:none;cursor:help;transition:transform .2s ease,box-shadow .2s ease;border:none;outline:none;margin:0}.streak-counter:hover{transform:scale(1.05);box-shadow:var(--shadow-sm)}.streak-counter__text{letter-spacing:.5px}.search-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0006;display:flex;align-items:flex-start;justify-content:center;z-index:1001;padding-top:10vh;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.search-modal{background:var(--surface);border:1px solid var(--border);border-radius:1rem;width:90%;max-width:600px;max-height:70vh;display:flex;flex-direction:column;animation:slideDown .3s ease}@keyframes slideDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.search-modal__header{display:flex;align-items:center;gap:1rem;padding:1.5rem;border-bottom:1px solid var(--border)}.search-modal__search-box{flex:1;display:flex;align-items:center;gap:.75rem;background:var(--surface-hover);border:1px solid var(--border);border-radius:.5rem;padding:0 .75rem}.search-modal__search-box input{flex:1;background:transparent;border:none;color:var(--text-primary);font-size:1rem;outline:none;padding:.75rem 0}.search-modal__search-box input::placeholder{color:var(--text-muted)}.search-modal__search-btn{background:transparent;border:none;color:var(--text-muted);cursor:pointer;font-size:1.2rem;transition:color .2s ease}.search-modal__search-btn:hover{color:var(--accent)}.search-modal__close{background:transparent;border:none;color:var(--text-muted);cursor:pointer;transition:all .2s ease}.search-modal__close:hover{color:var(--text-primary);transform:rotate(90deg)}.search-modal__content{flex:1;overflow-y:auto;padding:1.5rem}.search-modal__empty{text-align:center;padding:2rem;color:var(--text-muted)}.search-modal__empty p:first-child{font-size:1.2rem;margin-bottom:.5rem}.search-modal__hint{font-size:.9rem}.search-modal__results{display:flex;flex-direction:column;gap:1rem}.search-modal__result-item{display:block;padding:1rem;background:var(--surface-hover);border:1px solid var(--border);border-radius:.5rem;text-decoration:none;color:inherit;transition:all .2s ease}.search-modal__result-item:hover{border-color:var(--accent);background:var(--surface);transform:translate(4px)}.search-modal__result-header{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:.5rem}.search-modal__result-header h4{margin:0;color:var(--text-primary);flex:1}.search-modal__result-source{padding:.25rem .75rem;border-radius:99px;color:#fff;font-size:.7rem;font-weight:600;white-space:nowrap}.search-modal__result-item p{color:var(--text-muted);margin:.5rem 0;font-size:.9rem}.search-modal__result-category{display:inline-block;color:var(--accent);font-size:.8rem;font-weight:500}.streak-notification{position:fixed;top:70px;right:20px;z-index:999;animation:slideInRight .3s ease}@keyframes slideInRight{0%{opacity:0;transform:translate(400px)}to{opacity:1;transform:translate(0)}}.streak-notification--warning{background:var(--card-bg);border:1px solid var(--border-strong);border-left:4px solid var(--accent);border-radius:.5rem;padding:1rem 1.5rem;box-shadow:var(--shadow-lg)}.streak-notification__content{display:flex;align-items:center;gap:1rem;color:var(--text-primary);max-width:400px}.streak-notification__icon{flex-shrink:0;animation:bounce 2s ease-in-out infinite}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.streak-notification__text{flex:1}.streak-notification__text h4{margin:0 0 .25rem;font-size:1rem;font-weight:600}.streak-notification__text p{margin:0;font-size:.9rem;opacity:.95}.streak-notification__close{background:transparent;border:none;color:#fff;cursor:pointer;flex-shrink:0;opacity:.7;transition:opacity .2s ease}.streak-notification__close:hover{opacity:1}@media(max-width:768px){.streak-notification{top:auto;bottom:20px;right:10px;left:10px}.streak-notification__content{max-width:100%}}.modules__head{display:flex;justify-content:space-between;align-items:flex-start;gap:.75rem;margin-bottom:1.25rem}.modules__title{margin:0 0 .25rem;font-size:1.75rem;font-weight:700;color:var(--text-primary)}.modules__subtitle{margin:0;font-size:.875rem;color:var(--text-muted)}.modules__toggle{display:flex;background:var(--surface);border-radius:.75rem;padding:.25rem;border:1px solid var(--border)}.modules__toggle-btn{padding:.5rem 1.25rem;border:none;border-radius:.5rem;background:transparent;color:var(--text-muted-strong);font-size:.875rem;font-weight:700;cursor:pointer;transition:color .2s,background .2s}.modules__toggle-btn:hover{color:var(--text-primary);background:var(--surface-hover)}.modules__toggle-btn--active{background:var(--surface-hover);color:var(--text-primary);box-shadow:var(--shadow-sm)}.modules__empty{margin:0 0 1rem;padding:.75rem 0;color:var(--text-muted-strong);font-size:.875rem}.modules__quick-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;margin-bottom:1.25rem}.modules__action-card{display:flex;align-items:center;gap:1rem;min-height:7rem;padding:1.25rem;background:var(--card-bg);border:1px solid var(--border-strong);border-left:4px solid var(--accent);border-radius:.5rem;box-shadow:var(--shadow-sm)}.modules__action-icon{width:3.25rem;height:3.25rem;flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;color:var(--accent);background:var(--accent-glow);border:1px solid var(--border-strong);border-radius:.5rem}.modules__action-icon svg{width:1.8rem;height:1.8rem}.modules__action-text{flex:1;min-width:0}.modules__action-title{margin:0 0 .25rem;color:var(--text-primary);font-size:1.1rem;font-weight:800}.modules__action-subtitle{margin:0;color:var(--text-muted);font-size:.9rem;line-height:1.4}.modules__action-btn{width:2.55rem;height:2.55rem;flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;background:var(--accent);border:1px solid var(--accent);border-radius:.5rem;color:var(--text-primary);cursor:pointer;transition:background .2s ease,border-color .2s ease}.modules__action-btn:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.modules__list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:1rem}.modules__item{list-style:none}.modules__item:last-child{margin-bottom:0}.modules__node{position:absolute;left:-2.625rem;top:.5rem;width:2.625rem;height:2.625rem;border-radius:50%;border:3px solid var(--accent);background:var(--accent);color:#fff;font-size:.75rem;font-weight:700;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px var(--accent-glow)}.modules__node--locked{background:var(--surface);border-color:var(--surface-hover);color:var(--text-muted-strong);box-shadow:none}.modules__node--completed{background:var(--surface);border-color:var(--accent);color:var(--accent)}.modules__card{background:var(--card-bg);border:1px solid var(--border-strong);border-radius:1rem;overflow:hidden;transition:border-color .2s,box-shadow .2s}.modules__card:hover{border-color:var(--accent);box-shadow:0 0 24px var(--accent-glow)}.modules__card--locked{opacity:.6;background:var(--card-bg-muted)}.modules__card--locked:hover{border-color:var(--border-strong);box-shadow:none}.modules__card--locked .modules__card-title,.modules__card--locked .modules__card-lessons{color:var(--text-muted-strong)}.modules__card-inner{padding:1.5rem}.modules__card-head{margin-bottom:.5rem}.modules__card-title-row{display:flex;justify-content:space-between;align-items:flex-start;gap:.75rem;margin-bottom:.25rem}.modules__card-title{margin:0;font-size:1.25rem;font-weight:700;color:var(--text-primary)}.modules__card-xp{display:inline-flex;align-items:center;gap:.375rem;font-size:.875rem;font-weight:700;padding:.25rem .75rem;border-radius:9999px;border:1px solid var(--border-strong);background:var(--surface);color:var(--text-primary)}.modules__card-xp .modules__xp-icon{flex-shrink:0}.modules__card-xp--locked{color:var(--text-muted-strong);border-color:var(--border);background:transparent}.modules__xp-icon{width:1rem;height:1rem;background:var(--accent);border-radius:50%}.modules__card-lessons{margin:0;font-size:.875rem;font-weight:500;color:var(--text-muted-strong)}.modules__progress-block{margin-top:1rem;margin-bottom:1rem}.modules__progress-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem;font-size:.75rem;font-weight:700;letter-spacing:.02em;text-transform:uppercase}.modules__progress-label-text{color:var(--text-muted-strong)}.modules__progress-percent{color:var(--text-primary)}.modules__progress-bar{height:.75rem;background:var(--surface-hover);border-radius:9999px;overflow:hidden}.modules__progress-fill{height:100%;background:var(--accent);border-radius:9999px;transition:width .2s ease;box-shadow:0 0 12px var(--accent-glow)}.modules__card-footer{display:flex;align-items:center;justify-content:space-between;padding-top:1rem;margin-top:.5rem;border-top:1px solid var(--border)}.modules__streak-row{display:flex;align-items:center}.modules__streak-dot{width:1.5rem;height:1.5rem;border-radius:50%;background:var(--surface-hover);border:2px solid var(--card-bg);margin-left:-.5rem}.modules__streak-dot:first-child{margin-left:0}.modules__streak-badge{width:1.5rem;height:1.5rem;border-radius:50%;background:var(--surface-hover);border:2px solid var(--card-bg);margin-left:-.5rem;display:flex;align-items:center;justify-content:center;font-size:.5rem;font-weight:700;color:var(--text-muted-strong)}.modules__card-btn{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1.5rem;background:var(--btn-primary-bg);border:none;border-radius:9999px;color:var(--btn-primary-text);font-size:.875rem;font-weight:700;cursor:pointer;transition:background .2s}.modules__card-btn:hover{background:var(--btn-primary-hover)}.modules__card-btn-icon{flex-shrink:0;margin-left:.125rem}@media(max-width:760px){.modules__quick-actions{grid-template-columns:1fr}.modules__action-card{min-height:0}}.auth{display:flex;justify-content:center;align-items:center;padding:4rem 1rem}.auth__card{background:var(--card-bg);border:1px solid var(--border-strong);border-radius:1rem;padding:2.5rem;width:100%;max-width:400px;box-shadow:0 8px 32px #0006}.auth__title{margin:0 0 1.5rem;font-size:1.75rem;font-weight:700;text-align:center;color:var(--text-primary)}.auth__form{display:flex;flex-direction:column;gap:1.25rem}.auth__field{display:flex;flex-direction:column;gap:.5rem}.auth__label{font-size:.875rem;font-weight:600;color:var(--text-muted)}.auth__input{width:100%;background:var(--main-bg-elevated);border:1px solid var(--border);border-radius:.5rem;padding:.75rem 1rem;color:var(--text-primary);font-family:inherit;font-size:1rem;transition:border-color .2s,box-shadow .2s}.auth__input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-glow)}.auth__input[aria-invalid=true]{border-color:var(--danger)}.auth__password-input{position:relative}.auth__password-input .auth__input{padding-right:2.75rem}.auth__password-toggle{position:absolute;top:50%;right:.55rem;display:inline-flex;align-items:center;justify-content:center;width:2rem;height:2rem;padding:0;background:transparent;border:none;color:var(--text-muted);cursor:pointer;transform:translateY(-50%);transition:color .2s}.auth__password-toggle:hover{color:var(--text-primary)}.auth__submit{margin-top:.5rem;background:var(--accent);color:var(--text-primary);border:none;border-radius:.5rem;padding:.875rem;font-size:1rem;font-weight:700;cursor:pointer;transition:background .2s}.auth__submit:hover{background:var(--accent-hover)}.auth__error{color:var(--danger);font-size:.875rem;text-align:center;margin-bottom:1rem}.auth__password-panel{background:var(--main-bg-elevated);border:1px solid var(--border);border-radius:.5rem;padding:.875rem}.auth__strength-row{display:flex;justify-content:space-between;gap:1rem;color:var(--text-muted);font-size:.85rem}.auth__strength-label{text-transform:capitalize}.auth__strength-label--weak{color:var(--danger)}.auth__strength-label--good{color:var(--xp-yellow)}.auth__strength-label--strong{color:#22c55e}.auth__strength-meter{height:.4rem;margin-top:.65rem;overflow:hidden;background:var(--surface);border-radius:999px}.auth__strength-meter span{display:block;height:100%;background:var(--accent);border-radius:inherit;transition:width .2s ease}.auth__password-rules{list-style:none;padding:0;margin:.75rem 0 0;color:var(--text-muted);font-size:.82rem}.auth__password-rules li+li{margin-top:.35rem}.auth__password-rule--valid{color:#22c55e}.auth__password-suggestion{margin:.75rem 0 0;color:var(--text-muted-strong);font-size:.82rem}.auth__field-help{margin:0;color:var(--text-muted-strong);font-size:.82rem}.auth__field-help--error{color:var(--danger)}.calculator{max-width:100%;margin:0 auto;padding:2rem}.calculator__header{text-align:center;margin-bottom:3rem}.calculator__header h1{font-size:2.5rem;margin:0 0 .5rem;color:var(--text-primary)}.calculator__header p{font-size:1.1rem;color:var(--text-muted)}.calculator__tabs{display:flex;gap:1rem;margin-bottom:2rem;border-bottom:1px solid var(--border);overflow-x:auto}.calculator__tab{flex:0 0 auto;padding:1rem 1.75rem;background:transparent;border:none;color:var(--text-muted);cursor:pointer;font-size:1.08rem;font-weight:700;border-bottom:3px solid transparent;transition:all .3s ease;white-space:nowrap}.calculator__tab:hover{color:var(--accent)}.calculator__tab.active{color:var(--accent);border-bottom-color:var(--accent)}.calculator__content{animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.calculator__section{background:var(--card-bg);border:1px solid var(--border);border-radius:.5rem;padding:2rem}.calculator__section h2{margin:0 0 1.5rem;color:var(--text-primary)}.calculator__description{color:var(--text-muted);margin-bottom:2rem;line-height:1.6}.calculator__accounts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem;margin-bottom:2rem}.calculator__account-card{min-width:0;border:2px solid var(--border);border-left:5px solid var(--accent);border-radius:.5rem;padding:1.5rem;cursor:pointer;transition:all .3s ease;background:var(--surface)}.calculator__account-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow-md)}.calculator__account-card.selected{border-color:var(--accent);background:var(--surface);box-shadow:0 0 0 3px var(--accent-glow)}.calculator__account-card h3{margin:0 0 .5rem;color:var(--text-primary)}.calculator__account-desc{color:var(--text-muted);margin:.5rem 0;font-size:.95rem}.calculator__account-limit{color:var(--accent);font-weight:600;margin:.75rem 0 0;font-size:.9rem}.calculator__account-details{min-width:0;margin-top:1.5rem;padding-top:1.5rem;border-top:1px solid var(--border)}.calculator__form{min-width:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem}.calculator__input-group{display:flex;flex-direction:column}.calculator__input-group label{font-weight:600;margin-bottom:.5rem;color:var(--text-primary)}.calculator__input-group input,.calculator__input-group select{padding:.75rem;border:1px solid var(--border);border-radius:.5rem;background:var(--surface);color:var(--text-primary);font-size:1rem;transition:border-color .2s ease}.calculator__input-group input:focus,.calculator__input-group select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.calculator__result{min-width:0;max-width:100%;grid-column:1 / -1;background:var(--card-bg);border:1px solid var(--border-strong);border-left:4px solid var(--accent);border-radius:.5rem;padding:2rem;text-align:center;color:var(--text-primary);margin-top:1rem;box-shadow:var(--shadow-sm);overflow:hidden}.calculator__result p:first-child{font-size:1.1rem;font-weight:700;margin:0 0 .5rem;color:var(--text-muted)}.calculator__result-value{display:block;max-width:100%;font-size:clamp(1.65rem,4vw,2.35rem);line-height:1.1;font-weight:800;margin:0;color:var(--text-primary);font-variant-numeric:tabular-nums;overflow-wrap:anywhere;word-break:break-word}.calculator__result-gain,.calculator__result-info{font-size:1rem;margin-top:.5rem;color:var(--text-muted)}.calculator__grid-layout{display:grid;grid-template-columns:350px 1fr;gap:2rem;align-items:start}@media(max-width:1024px){.calculator__grid-layout{grid-template-columns:1fr}}@media(max-width:720px){.calculator__tabs{gap:.5rem}.calculator__tab{padding:.85rem 1rem;font-size:1rem}.calculator__result{padding:1.5rem}.calculator__result p:first-child{font-size:1rem}.calculator__result-value{font-size:clamp(1.45rem,8vw,2rem)}}.calculator__chart-container{background:var(--surface);border:1px solid var(--border);border-radius:.5rem;padding:1.5rem;margin-top:1.5rem}.calculator__chart-container h3{margin:0 0 1.5rem;color:var(--text-primary);font-size:1.2rem;font-weight:600;border-bottom:1px solid var(--border);padding-bottom:.75rem}.recharts-default-tooltip{background-color:#0f0f0ff2!important;border:1px solid var(--border)!important;border-radius:8px!important;box-shadow:var(--shadow-lg)!important}.recharts-tooltip-item-list{color:#fff!important}.recharts-legend-item-text{color:var(--text-muted)!important;font-size:.9rem!important}.calculator__section h2{font-size:1.75rem;margin-bottom:1rem;color:var(--text-primary)}.explore{max-width:1180px;margin:0 auto;padding:2rem}.explore__hero{margin-bottom:2rem}.explore__eyebrow{display:inline-flex;align-items:center;color:var(--accent);font-size:.78rem;font-weight:700;letter-spacing:0;text-transform:uppercase}.explore__hero h1{max-width:780px;margin:.45rem 0 .65rem;color:var(--text-primary);font-size:2.35rem;line-height:1.1}.explore__hero p{max-width:720px;margin:0;color:var(--text-muted);font-size:1rem}.explore__search{margin-bottom:1.25rem}.explore__search-bar{display:flex;align-items:center;gap:.75rem;width:100%;padding:.875rem 1rem;background:var(--card-bg);border:1px solid var(--border);border-radius:.5rem;color:var(--text-muted)}.explore__search-bar input{flex:1;min-width:0;background:transparent;border:none;color:var(--text-primary);font-size:.98rem;outline:none}.explore__search-bar input::placeholder{color:var(--text-muted-strong)}.explore__filters{display:flex;flex-wrap:wrap;gap:.65rem;margin-bottom:1.5rem}.explore__filter-btn,.explore__back-btn{display:inline-flex;align-items:center;justify-content:center;gap:.45rem;min-height:2.35rem;padding:.55rem .85rem;background:var(--card-bg);border:1px solid var(--border);color:var(--text-muted);border-radius:.5rem;cursor:pointer;font:inherit;font-size:.9rem;font-weight:600;transition:border-color .2s ease,color .2s ease,background .2s ease}.explore__filter-btn:hover,.explore__back-btn:hover{background:var(--surface);border-color:var(--border-strong);color:var(--text-primary)}.explore__filter-btn.active{background:var(--accent);border-color:var(--accent);color:var(--text-primary)}.explore__grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:1rem;margin-bottom:1.5rem}.explore__card,.explore__article,.explore__footer{background:var(--card-bg);border:1px solid var(--border);border-radius:.5rem}.explore__card{min-height:280px;padding:1.25rem;display:flex;flex-direction:column;transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}.explore__card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--border-strong)}.explore__card-header{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:.85rem}.explore__card-header h3{margin:0;color:var(--text-primary);font-size:1.08rem;line-height:1.25}.explore__category{display:inline-flex;align-items:center;flex:0 0 auto;background:var(--accent-glow);color:var(--accent);border:1px solid var(--border-strong);padding:.25rem .55rem;border-radius:.5rem;font-size:.74rem;font-weight:700}.explore__description{flex:1;margin:0 0 1rem;color:var(--text-muted);line-height:1.55}.explore__card-meta{display:flex;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1rem;padding:.75rem 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);color:var(--text-muted);font-size:.85rem}.explore__author{color:var(--text-muted);font-weight:600}.explore__read-time{display:inline-flex;align-items:center;gap:.35rem;color:var(--text-muted);white-space:nowrap}.explore__card-footer,.explore__article-actions{display:flex;gap:.75rem;margin-top:auto}.explore__like-btn,.explore__read-btn{display:inline-flex;align-items:center;justify-content:center;gap:.45rem;flex:1;min-height:2.55rem;padding:.65rem .85rem;border:1px solid var(--border);border-radius:.5rem;cursor:pointer;font:inherit;font-size:.9rem;font-weight:700;text-decoration:none;transition:background .2s ease,border-color .2s ease,color .2s ease}.explore__like-btn{background:transparent;color:var(--text-muted)}.explore__like-btn:hover:not(:disabled){background:var(--surface);border-color:var(--border-strong);color:var(--text-primary)}.explore__like-btn.liked{background:var(--accent-glow);border-color:var(--accent);color:var(--text-primary)}.explore__like-btn:disabled{cursor:wait;opacity:.7}.explore__read-btn{background:var(--accent);color:var(--text-primary);border-color:var(--accent)}.explore__read-btn:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.explore__empty{grid-column:1 / -1;padding:2rem;background:var(--card-bg);border:1px solid var(--border);border-radius:.5rem;color:var(--text-muted);text-align:center}.explore__empty p{margin:0 0 1rem}.explore__reset-btn{min-height:2.4rem;padding:.6rem 1rem;background:var(--accent);color:var(--text-primary);border:none;border-radius:.5rem;cursor:pointer;font:inherit;font-weight:700}.explore__article-shell{max-width:860px;margin:0 auto}.explore__back-btn{margin-bottom:1rem}.explore__article{padding:2rem}.explore__article-header{display:grid;gap:.85rem;margin-bottom:1rem}.explore__article-header h1{margin:0;color:var(--text-primary);font-size:2rem;line-height:1.15}.explore__article-header p{margin:0;color:var(--text-muted)}.explore__article-meta{justify-content:flex-start}.explore__article-body{margin-top:1.5rem;color:var(--text-muted);line-height:1.75}.explore__article-body p{margin:0 0 1.1rem}.explore__article-actions{padding-top:1.25rem;border-top:1px solid var(--border)}.explore__footer{padding:1.5rem;border-left:4px solid var(--accent)}.explore__footer h2{margin:.45rem 0 .65rem;color:var(--text-primary);font-size:1.2rem;line-height:1.35}.explore__footer p{max-width:780px;margin:0;color:var(--text-muted);line-height:1.6}@media(max-width:720px){.explore{padding:1rem}.explore__hero h1{font-size:1.8rem}.explore__grid{grid-template-columns:1fr}.explore__card-footer,.explore__article-actions{flex-direction:column}.explore__article{padding:1.25rem}}.quizzes{max-width:100%;margin:0 auto;padding:2rem}.quizzes__hero{text-align:center;margin-bottom:3rem}.quizzes__hero h1{font-size:2.5rem;margin:0 0 .5rem;color:var(--text-primary)}.quizzes__hero p{font-size:1.1rem;color:var(--text-muted)}.quizzes__stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1.5rem;margin-bottom:3rem}.quizzes__stat{background:var(--card-bg);border:1px solid var(--border);border-radius:.5rem;padding:1.5rem;text-align:center}.quizzes__stat-label{display:block;font-size:.9rem;color:var(--text-muted);margin-bottom:.5rem}.quizzes__stat-value{display:block;font-size:2rem;font-weight:700;color:var(--accent)}.quizzes__grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:2rem}.quizzes__card{background:var(--card-bg);border:1px solid var(--border);border-radius:.5rem;padding:1.5rem;transition:all .3s ease;position:relative;overflow:hidden}.quizzes__card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--accent)}.quizzes__card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}.quizzes__difficulty{display:inline-block;padding:.25rem .75rem;border-radius:.5rem;color:var(--text-primary);background:var(--accent-glow);border:1px solid var(--border-strong);font-size:.75rem;font-weight:600;margin-bottom:1rem}.quizzes__difficulty--easy,.quizzes__difficulty--medium,.quizzes__difficulty--hard,.quizzes__status--passed,.quizzes__status--failed{background:var(--accent-glow);border-color:var(--border-strong);color:var(--text-primary)}.quizzes__card h3{margin:0 0 .5rem;color:var(--text-primary)}.quizzes__card p{color:var(--text-muted);margin:.5rem 0 1rem;line-height:1.5}.quizzes__meta{display:flex;justify-content:space-between;font-size:.9rem;color:var(--text-muted);margin:1.5rem 0;padding:1rem 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.quizzes__start-btn{width:100%;padding:.75rem;background:var(--accent);color:#fff;border:none;border-radius:.5rem;font-weight:600;cursor:pointer;transition:opacity .2s ease}.quizzes__start-btn:hover{background:var(--accent-hover)}.quizzes__quiz-container{max-width:700px;margin:2rem auto}.quizzes__quiz-header{margin-bottom:2rem}.quizzes__quiz-header h2{margin:0 0 1rem;color:var(--text-primary)}.quizzes__progress{margin-bottom:1.5rem}.quizzes__progress span{display:block;color:var(--text-muted);font-size:.9rem;margin-bottom:.5rem}.quizzes__progress-bar{height:8px;background:var(--surface-hover);border-radius:99px;overflow:hidden}.quizzes__progress-fill{height:100%;background:var(--accent);transition:width .3s ease}.quizzes__quiz-content{background:var(--card-bg);border:1px solid var(--border);border-radius:.5rem;padding:2rem}.quizzes__quiz-content h3{margin:0 0 1.5rem;color:var(--text-primary);font-size:1.2rem}.quizzes__options{display:flex;flex-direction:column;gap:1rem;margin-bottom:2rem}.quizzes__option{padding:1.25rem;background:var(--surface-hover);border:2px solid var(--border);border-radius:.5rem;color:var(--text-primary);cursor:pointer;text-align:left;transition:all .2s ease}.quizzes__option:hover{border-color:var(--accent);background:var(--surface)}.quizzes__option.selected{background:var(--accent-glow);border-color:var(--accent)}.quizzes__option--correct{background:#2563eb24;border-color:var(--accent);color:var(--text-primary)}.quizzes__option--wrong{background:#ef44441f;border-color:var(--danger);color:var(--text-primary)}.quizzes__answer-note{display:block;margin-bottom:.35rem;color:var(--text-muted);font-size:.78rem;font-weight:700;text-transform:uppercase}.quizzes__next-btn{width:100%;padding:1rem;background:var(--accent);color:#fff;border:none;border-radius:.5rem;font-weight:600;cursor:pointer;transition:opacity .2s ease}.quizzes__next-btn:hover:not(:disabled){background:var(--accent-hover)}.quizzes__next-btn:disabled{opacity:.5;cursor:not-allowed}.quizzes__results{display:flex;align-items:center;justify-content:center;min-height:400px;padding:2rem}.quizzes__results-card{background:var(--card-bg);border:1px solid var(--border);border-radius:.5rem;padding:3rem;text-align:center;max-width:500px;width:100%}.quizzes__results-status{display:inline-flex;align-items:center;justify-content:center;margin-bottom:1rem;padding:.35rem .75rem;background:var(--accent-glow);border:1px solid var(--border-strong);border-radius:.5rem;color:var(--text-primary);font-size:.8rem;font-weight:800;text-transform:uppercase}.quizzes__results-card h2{margin:0 0 2rem;color:var(--text-primary)}.quizzes__score{background:var(--surface-hover);border:1px solid var(--border);border-radius:.5rem;padding:1.5rem;margin-bottom:1.5rem}.quizzes__score-text{margin:0 0 .5rem;color:var(--text-muted)}.quizzes__score-value{margin:0 0 .5rem;font-size:2.5rem;font-weight:700;color:var(--text-primary)}.quizzes__score-percentage{margin:0;font-size:1.5rem;color:var(--accent);font-weight:600}.quizzes__reward{background:var(--card-bg);border:1px solid var(--border-strong);border-left:4px solid var(--accent);border-radius:.5rem;padding:1.5rem;margin-bottom:2rem;color:var(--text-primary)}.quizzes__reward--muted{border-left-color:var(--border-strong);background:var(--surface)}.quizzes__review-progress-fill{background:var(--accent)}.quizzes__review-explanation{background:var(--surface);border:1px solid var(--border);border-radius:.5rem;padding:1.25rem;margin-bottom:1.5rem;line-height:1.6;color:var(--text-primary)}.quizzes__review-explanation strong{color:var(--accent)}.quizzes__completed-nav,.quizzes__empty{text-align:center}.quizzes__completed-nav{margin-bottom:2rem}.quizzes__empty{padding:3rem;color:var(--text-muted)}.quizzes__reward p{margin:0 0 .5rem}.quizzes__xp-value{font-size:2rem;font-weight:700;margin:0}.quizzes__actions{display:flex;gap:1rem}.quizzes__btn{flex:1;padding:.75rem;border:none;border-radius:.5rem;font-weight:600;cursor:pointer;transition:all .2s ease}.quizzes__btn--primary{background:var(--accent);color:#fff}.quizzes__btn--primary:hover{background:var(--accent-hover)}.quizzes__btn--secondary{background:transparent;border:1px solid var(--border);color:var(--text-primary)}.quizzes__btn--secondary:hover{border-color:var(--accent);color:var(--accent)}.quizzes__btn--danger,.quizzes__btn--danger:hover{border-color:var(--danger);color:var(--danger)}.lr{display:flex;justify-content:center;align-items:flex-start;min-height:calc(100vh - 80px);padding:2rem 1rem;transition:background .15s}.lr--flash-correct{animation:flashGreen .4s ease}.lr--flash-wrong{animation:flashRed .4s ease}@keyframes flashGreen{0%,to{background:transparent}50%{background:#22c55e26}}@keyframes flashRed{0%,to{background:transparent}50%{background:#ef444426}}.lr__lobby{max-width:90%;width:100%;text-align:center;background:var(--card-bg);border:1px solid var(--border);border-radius:.5rem;padding:3rem 2rem}.lr__lobby-icon{width:4rem;height:4rem;display:inline-flex;align-items:center;justify-content:center;margin-bottom:1rem;color:var(--accent);background:var(--accent-glow);border:1px solid var(--border-strong);border-radius:.5rem;animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.lr__lobby-title{font-size:2.2rem;font-weight:800;margin:0 0 .5rem;color:var(--text-primary)}.lr__lobby-sub{color:var(--text-muted);margin-bottom:2rem;font-size:1rem}.lr__lobby-stats{display:flex;justify-content:center;gap:2rem;margin-bottom:1.5rem}.lr__stat{display:flex;flex-direction:column;align-items:center;gap:.25rem}.lr__stat-value{font-size:1.6rem;font-weight:800;color:var(--accent)}.lr__stat-label{font-size:.75rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.lr__lobby-rules{background:var(--surface);border:1px solid var(--border);border-radius:.5rem;padding:1rem 1.5rem;margin-bottom:1.5rem;text-align:left}.lr__lobby-rules p{margin:.4rem 0;color:var(--text-muted);font-size:.9rem}.lr__login-warning{color:var(--text-muted);font-size:.875rem;margin-bottom:1rem}.lr__link-btn{background:none;border:none;color:var(--accent);cursor:pointer;font-size:inherit;text-decoration:underline;padding:0}.lr__start-btn{background:var(--accent);color:#fff;border:none;border-radius:.5rem;padding:.875rem 2.5rem;font-size:1rem;font-weight:700;cursor:pointer;transition:opacity .2s,transform .1s;width:100%;margin-top:.5rem}.lr__start-btn:hover{background:var(--accent-hover);transform:translateY(-1px)}.lr__start-btn:active{transform:translateY(0)}.lr__countdown{text-align:center;padding-top:6rem}.lr__countdown-number{font-size:8rem;font-weight:900;color:var(--accent);animation:countPop .5s ease;line-height:1}@keyframes countPop{0%{transform:scale(1.5);opacity:0}to{transform:scale(1);opacity:1}}.lr__countdown p{font-size:1.5rem;color:var(--text-muted);margin-top:1rem}.lr__game{max-width:90%;width:100%}.lr__header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem;flex-wrap:wrap;gap:.5rem}.lr__category-badge{background:var(--surface);border:1px solid var(--border);border-radius:2rem;padding:.25rem .75rem;font-size:.75rem;font-weight:600;color:var(--accent);text-transform:uppercase;letter-spacing:.05em}.lr__question-count{color:var(--text-muted);font-size:.875rem}.lr__score-display{font-weight:700;color:var(--accent);font-size:1rem}.lr__timer-wrap{width:100%;height:8px;background:var(--border);border-radius:4px;overflow:hidden;margin-bottom:.4rem}.lr__timer-bar{height:100%;border-radius:4px}.lr__timer-label{font-size:.875rem;font-weight:700;text-align:right;margin-bottom:1.5rem;transition:color .3s}.lr__question-card{background:var(--card-bg);border:1px solid var(--border);border-radius:.5rem;padding:1.75rem;margin-bottom:1.25rem;min-height:100px;display:flex;align-items:center}.lr__question-text{font-size:1.15rem;font-weight:600;color:var(--text-primary);line-height:1.5;margin:0}.lr__answers{display:grid;grid-template-columns:1fr 1fr;gap:.75rem}.lr__answer{display:flex;align-items:center;gap:.75rem;background:var(--surface);border:1px solid var(--border);border-radius:.5rem;padding:.9rem 1rem;cursor:pointer;font-size:.9rem;color:var(--text-primary);text-align:left;transition:border-color .15s,background .15s,transform .1s;line-height:1.4}.lr__answer:hover:not(:disabled){border-color:var(--accent);background:var(--surface-hover);transform:translateY(-1px)}.lr__answer:disabled{cursor:default}.lr__answer--selected{border-color:var(--accent);background:var(--surface-hover)}.lr__answer--correct{border-color:#22c55e!important;background:#22c55e1f!important}.lr__answer--wrong{border-color:var(--danger)!important;background:#ef44441f!important}.lr__answer-letter{min-width:1.6rem;height:1.6rem;background:var(--border);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700;flex-shrink:0}.lr__results{max-width:90%;width:100%;text-align:center;background:var(--card-bg);border:1px solid var(--border);border-radius:.5rem;padding:3rem 2rem}.lr__results-status{display:inline-flex;margin-bottom:1rem;padding:.35rem .75rem;background:var(--accent-glow);border:1px solid var(--border-strong);border-radius:.5rem;color:var(--text-primary);font-size:.8rem;font-weight:800;text-transform:uppercase}.lr__results-title{font-size:2rem;font-weight:800;color:var(--text-primary);margin:0 0 1.25rem}.lr__results-score{display:flex;flex-direction:column;align-items:center;gap:.25rem;margin-bottom:1rem}.lr__results-fraction{font-size:3rem;font-weight:900;color:var(--accent);line-height:1}.lr__results-pct{font-size:1rem;color:var(--text-muted)}.lr__perfect-badge{background:var(--accent-glow);border:1px solid var(--border-strong);color:#fff;font-weight:700;border-radius:.5rem;padding:.6rem 1.25rem;margin-bottom:1rem;font-size:.95rem;display:inline-block}.lr__results-xp{color:var(--text-muted);font-size:.9rem;margin-bottom:2rem}.lr__results-actions{display:flex;gap:.75rem;flex-direction:column}.lr__home-btn{background:transparent;border:1px solid var(--border);border-radius:.5rem;padding:.875rem;font-size:1rem;font-weight:600;color:var(--text-muted);cursor:pointer;transition:border-color .2s,color .2s}.lr__home-btn:hover{border-color:var(--accent);color:var(--text-primary)}@media (max-width: 90%){.lr__answers{grid-template-columns:1fr}.lr__lobby-stats{gap:1rem}.lr__results-fraction{font-size:2.25rem}}.review-modules{max-width:1100px;margin:0 auto;padding:2rem}.review-modules__header{text-align:center;margin-bottom:3rem}.review-modules__header h1{font-size:2.5rem;margin:0 0 .5rem;color:var(--text-primary)}.review-modules__header p{font-size:1.1rem;color:var(--text-muted)}.review-modules__empty{text-align:center;padding:4rem 2rem}.review-modules__empty-icon{font-size:4rem;margin-bottom:1rem}.review-modules__empty h2{color:var(--text-primary);margin:0 0 .5rem}.review-modules__empty p{color:var(--text-muted);margin:0 0 1.5rem}.review-modules__cta{padding:.75rem 1.5rem;background:var(--accent);color:#fff;border:none;border-radius:.5rem;font-weight:600;cursor:pointer;transition:opacity .2s ease}.review-modules__cta:hover{background:var(--accent-hover)}.review-modules__stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1.5rem;margin-bottom:3rem}.review-modules__stat{background:var(--card-bg);border:1px solid var(--border);border-radius:.5rem;padding:1.5rem;text-align:center}.review-modules__stat-label{display:block;font-size:.9rem;color:var(--text-muted);margin-bottom:.5rem}.review-modules__stat-value{display:block;font-size:2rem;font-weight:700;color:var(--accent)}.review-modules__grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:2rem}.review-modules__card{background:var(--card-bg);border:1px solid var(--border);border-radius:.5rem;padding:1.5rem;transition:all .3s ease;position:relative;overflow:hidden}.review-modules__card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--accent)}.review-modules__card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--accent)}.review-modules__card-header{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:1rem}.review-modules__card-header h3{margin:0;color:var(--text-primary);flex:1}.review-modules__badge{background:var(--accent-glow);border:1px solid var(--border-strong);color:var(--text-primary);padding:.25rem .75rem;border-radius:.5rem;font-size:.75rem;font-weight:600;white-space:nowrap}.review-modules__description{color:var(--text-muted);margin:0 0 1rem;line-height:1.5}.review-modules__meta{display:flex;justify-content:space-between;font-size:.85rem;margin-bottom:1.5rem;padding:.75rem 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.review-modules__meta-item{display:flex;flex-direction:column;gap:.25rem}.review-modules__label{color:var(--text-muted);font-size:.75rem}.review-modules__value{color:var(--text-primary);font-weight:600}.review-modules__progress{margin:1.5rem 0}.review-modules__progress-label{display:flex;justify-content:space-between;font-size:.9rem;color:var(--text-muted);margin-bottom:.5rem}.review-modules__progress-percent{color:var(--accent);font-weight:600}.review-modules__progress-bar{height:8px;background:var(--surface-hover);border-radius:99px;overflow:hidden}.review-modules__progress-fill{height:100%;background:var(--accent);transition:width .3s ease}.review-modules__xp-badge{background:var(--surface);border:1px solid var(--border-strong);border-left:4px solid var(--accent);color:var(--text-primary);padding:.75rem;border-radius:.5rem;font-weight:600;margin:1rem 0;text-align:center}.review-modules__actions{display:flex;gap:1rem;margin-top:1.5rem}.review-modules__btn{flex:1;padding:.75rem;border:none;border-radius:.5rem;font-weight:600;cursor:pointer;transition:all .2s ease}.review-modules__btn--primary{background:var(--accent);color:#fff}.review-modules__btn--primary:hover{background:var(--accent-hover)}.review-modules__btn--secondary{background:transparent;border:1px solid var(--border);color:var(--text-primary)}.review-modules__btn--secondary:hover{border-color:var(--accent);color:var(--accent)}.review-modules__modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.review-modules__modal{background:var(--surface);border:1px solid var(--border);border-radius:1rem;padding:2rem;max-width:500px;width:90%;position:relative;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg)}.review-modules__modal-close{position:absolute;top:1rem;right:1rem;background:transparent;border:none;color:var(--text-muted);cursor:pointer;font-size:1.5rem;transition:color .2s ease}.review-modules__modal-close:hover{color:var(--text-primary)}.review-modules__modal h2{margin:0 0 1rem;color:var(--text-primary)}.review-modules__modal-description{color:var(--text-muted);margin:0 0 1.5rem;line-height:1.6}.review-modules__modal-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin:2rem 0;padding:1.5rem 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.review-modules__modal-stat{text-align:center}.review-modules__modal-stat-label{display:block;color:var(--text-muted);font-size:.85rem;margin-bottom:.25rem}.review-modules__modal-stat-value{display:block;color:var(--accent);font-weight:700;font-size:1.5rem}.app{min-height:100vh;display:flex;flex-direction:column}.app__main{flex:1;padding:1.25rem 1rem;max-width:100%;margin:0 auto;width:100%}:root{--main-bg: #0a0a0a;--main-bg-elevated: #09090b;--card-bg: #121215;--card-bg-muted: rgba(24, 24, 27, .3);--surface: #18181b;--surface-hover: #27272a;--border: rgba(255, 255, 255, .05);--border-strong: rgba(255, 255, 255, .08);--text-primary: #fff;--text-muted: #a1a1aa;--text-muted-strong: #71717a;--accent: #2563eb;--accent-hover: #1d4ed8;--accent-glow: rgba(37, 99, 235, .25);--xp-yellow: #eab308;--xp-yellow-dark: #ca8a04;--danger: #ef4444;--font-primary: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--btn-primary-bg: #ffffff;--btn-primary-text: #000000;--btn-primary-hover: #f4f4f5;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .3);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .4)}[data-theme=light]{--main-bg: #f8fafc;--main-bg-elevated: #ffffff;--card-bg: #ffffff;--card-bg-muted: rgba(226, 232, 240, .3);--surface: #f1f5f9;--surface-hover: #e2e8f0;--border: rgba(0, 0, 0, .1);--border-strong: rgba(0, 0, 0, .15);--text-primary: #0f172a;--text-muted: #64748b;--text-muted-strong: #475569;--accent: #2563eb;--accent-hover: #1d4ed8;--accent-glow: rgba(37, 99, 235, .15);--xp-yellow: #d97706;--xp-yellow-dark: #b45309;--danger: #dc2626;--btn-primary-bg: #2563eb;--btn-primary-text: #ffffff;--btn-primary-hover: #1d4ed8;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .1);--shadow-md: 0 4px 12px rgba(0, 0, 0, .1);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .15)}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:var(--font-primary);background-color:var(--main-bg);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased}#root{min-height:100vh}