:root{--bg: #fff;--text: #000;--accent: #3b82f6;--accent-rgb: 59, 130, 246;--accent-hover: #4f46e5;--field-bg: #f9fafb;--border: #d1d5db;--error-bg: #fee2e2;--success-bg: #e9f6ec;--muted-text: #4b5563;--subtle-border: #e5e7eb;--footer-bg: #f9fafb;--footer-icon: #6b7280;--bg-overlay: rgba(255, 255, 255, 0.9);--card-bg: rgba(255, 255, 255, 0.6);--card-border: rgba(0, 0, 0, 0.05)}html.dark{--bg: #0d0f11;--text: #fff;--accent: #3b82f6;--accent-hover: #2563eb;--field-bg: #161a1d;--border: #3f3f46;--error-bg: #4d2323;--success-bg: #1e4a2a;--muted-text: #d1d5db;--subtle-border: #2a2a2a;--footer-bg: #1a1c1e;--footer-icon: #9ca3af;--bg-overlay: rgba(0, 0, 0, 0.9);--card-bg: rgba(22, 26, 29, 0.8);--card-border: rgba(255, 255, 255, 0.1)}@keyframes sparkle{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.3);opacity:.7}}@keyframes toast-in{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}@keyframes 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ease}.settings-card__content form{max-width:500px;padding:.5rem 0 2rem 2.75rem}@media(max-width: 600px){.settings-card__content form{padding-left:0}}.settings-card__content .info-card__message{background:rgba(59,130,246,.05);border:1px solid rgba(59,130,246,.1);padding:1.25rem;border-radius:1.25rem;margin:1rem 2.75rem 2rem 2.75rem;color:var(--text)}@media(max-width: 600px){.settings-card__content .info-card__message{margin-left:0;margin-right:0}}.settings-card__content .settings-card__alert{margin:0 2.75rem 2rem 2.75rem}@media(max-width: 600px){.settings-card__content .settings-card__alert{margin-left:0;margin-right:0}}.settings-card__content .pwd-requirements{margin:1rem 2.75rem 2rem 2.75rem}@media(max-width: 600px){.settings-card__content .pwd-requirements{margin-left:0;margin-right:0}}.settings-card__content .pwd-requirements__title{font-weight:700;font-size:.95rem;margin-bottom:.75rem;color:var(--text)}.settings-card__content ul.req-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:.75rem}@media(max-width: 600px){.settings-card__content ul.req-list{grid-template-columns:1fr}}.settings-card__content ul.req-list li{display:flex;align-items:center;gap:.5rem;font-size:.85rem;color:var(--muted-text)}.settings-card__content ul.req-list li::before{content:"";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--accent);font-size:.7rem}.settings-card.is-open{border-color:rgba(59,130,246,.3)}.settings-card.is-open .settings-card__icon{transform:rotate(180deg);color:var(--accent);opacity:1}.settings-card.is-open .settings-card__content{max-height:1200px;opacity:1;padding-bottom:1rem}.settings-card.is-open .settings-card__header{background-color:rgba(59,130,246,.02)}.stats-page{--glass-bg: rgba(255, 255, 255, 0.75);--glass-border: rgba(255, 255, 255, 0.8);--glass-shadow: 0 4px 24px -1px rgba(0, 0, 0, 0.04);--card-radius: 1.75rem;--font-main: 'Outfit', sans-serif;padding:3rem 0 5rem;min-height:calc(100vh - 80px);background:radial-gradient(circle at top left, rgba(59, 130, 246, 0.08), transparent 45%),radial-gradient(circle at bottom right, rgba(236, 72, 153, 0.08), transparent 45%);background-color:var(--field-bg);font-family:var(--font-main);align-items:center}html.dark .stats-page{--glass-bg: rgba(22, 26, 29, 0.7);--glass-border: rgba(255, 255, 255, 0.08);--glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);background:radial-gradient(circle at top left, rgba(59, 130, 246, 0.15), transparent 45%),radial-gradient(circle at bottom right, rgba(236, 72, 153, 0.15), transparent 45%);background-color:var(--bg)}.stats-page__back-nav{width:100%;margin-bottom:0;margin-top:-1.3rem}.stats-page__container{max-width:1400px;margin:0 auto;padding:0 1.5rem;display:grid;gap:2rem;grid-template-columns:360px 1fr;grid-template-areas:"sidebar content";align-items:start}@media(max-width: 992px){.stats-page__container{grid-template-columns:1fr;grid-template-areas:"sidebar" "content"}}.stats-page__container--single-col{grid-template-columns:1fr !important;grid-template-areas:"content" !important;max-width:1000px}.stats-page__sidebar{grid-area:sidebar;display:flex;flex-direction:column;gap:1.5rem;position:sticky;top:2rem}@media(max-width: 992px){.stats-page__sidebar{position:static;display:grid;grid-template-columns:1fr 1fr;align-items:stretch}}@media(max-width: 768px){.stats-page__sidebar{display:flex}}@media(max-width: 992px){.stats-page__category-selector{grid-column:span 2}}.stats-page__select{width:100%;padding:1.25rem 1.5rem;border:1px solid var(--glass-border);border-radius:1.25rem;background-color:var(--glass-bg);backdrop-filter:blur(12px);color:var(--text);font-size:1.05rem;font-family:var(--font-main);font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(0.4, 0, 0.2, 1);appearance:none;box-shadow:var(--glass-shadow);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%233b82f6' stroke-width='2.5'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 1.25rem center;background-size:1.25rem}.stats-page__select:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 8px 20px rgba(59,130,246,.15)}.stats-page__select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(59,130,246,.15)}.stats-page__content{grid-area:content;display:flex;flex-direction:column;gap:2rem}.stats-page__cards-grid{display:grid;grid-template-columns:repeat(2, 1fr);gap:1.5rem}@media(max-width: 768px){.stats-page__cards-grid{grid-template-columns:1fr}}.stats-card{background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:var(--card-radius);padding:2rem;box-shadow:var(--glass-shadow);position:relative;overflow:hidden;transition:all .4s cubic-bezier(0.2, 0.8, 0.2, 1);display:flex;flex-direction:column}.stats-card:hover{transform:translateY(-4px) scale(1.005);box-shadow:0 20px 40px -5px rgba(0,0,0,.08);border-color:rgba(59,130,246,.3);z-index:1}.stats-card--mastery{align-items:center;text-align:center;flex:1;justify-content:center;background:linear-gradient(180deg, var(--glass-bg) 0%, rgba(255, 255, 255, 0.4) 100%)}html.dark .stats-card--mastery{background:linear-gradient(180deg, var(--glass-bg) 0%, rgba(20, 20, 20, 0.6) 100%)}.stats-card--trend{min-height:380px;padding-bottom:1.5rem}.stats-card--locked{pointer-events:none;user-select:none}.stats-card--main{background:linear-gradient(135deg, var(--glass-bg) 0%, rgba(var(--accent-rgb), 0.03) 100%)}.stats-card--main:hover{transform:none}.stats-card--critical{border-left:0;box-shadow:inset 4px 0 0 0 #ef4444,var(--glass-shadow)}.stats-card__header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;width:100%;border-bottom:1px solid rgba(0,0,0,.1);padding-bottom:1rem}html.dark .stats-card__header{border-color:hsla(0,0%,100%,.03)}.stats-card__title{font-family:var(--font-main);font-size:1.35rem;font-weight:700;color:var(--text);margin:0;display:flex;align-items:center;gap:.75rem;letter-spacing:-0.01em}.stats-card__title i{color:var(--accent);font-size:.9em;background:rgba(59,130,246,.1);padding:8px;border-radius:10px}.stats-card__subtitle{font-size:.75rem;text-transform:uppercase;letter-spacing:.15em;font-weight:800;color:var(--muted-text);margin:2rem 0 1rem;text-align:left;width:100%;opacity:.7}.stats-card__empty{color:var(--muted-text);font-size:.95rem;font-style:italic;text-align:center;margin:auto 0;padding:2rem;background:rgba(0,0,0,.02);border-radius:1rem;width:100%}.stats-card__empty p{font-weight:600;font-style:normal;margin:0}.stats-card__empty-icon{font-size:3rem;margin-bottom:1rem;opacity:.5}.stats-card__pie-wrapper{position:relative;width:220px;height:220px;margin:2rem 0;filter:drop-shadow(0 15px 30px rgba(59, 130, 246, 0.12))}.stats-card__pie-chart{width:100%;height:100%;border-radius:50%;position:relative;transition:transform .5s cubic-bezier(0.34, 1.56, 0.64, 1)}.stats-card__pie-chart:hover{transform:scale(1.08) rotate(5deg)}.stats-card__pie-center{position:absolute;top:50%;left:50%;transform:translate(-50%, -50%);width:70%;height:70%;background:var(--bg);border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:inset 0 2px 10px rgba(0,0,0,.03)}.stats-card__pie-percentage{font-family:var(--font-main);font-size:2.75rem;font-weight:800;color:var(--text);letter-spacing:-0.05em}.stats-card__mastery-legend{font-size:1rem;color:var(--muted-text);font-weight:600;background:var(--subtle-bg);padding:.6rem 1.2rem;border-radius:2rem;border:1px solid var(--glass-border)}.stats-card__topics{width:100%;margin-top:auto;padding-top:2rem}.stats-card__topic-item{margin-bottom:1.25rem}.stats-card__topic-item:last-child{margin-bottom:0}.stats-card__topic-label{display:flex;justify-content:space-between;font-size:.9rem;font-weight:600;color:var(--text);margin-bottom:.5rem;opacity:.9}.stats-card__progress-bar{width:100%;height:10px;background-color:var(--subtle-border);border-radius:99px;overflow:hidden;position:relative;box-shadow:inset 0 1px 2px rgba(0,0,0,.05)}.stats-card__progress-fill{height:100%;background:linear-gradient(to right, var(--accent), #8b5cf6);border-radius:99px;transition:width 1s cubic-bezier(0.2, 0.8, 0.2, 1);box-shadow:0 0 10px rgba(59,130,246,.4)}.stats-card__chart{flex:1;display:flex;flex-direction:column;justify-content:center;width:100%;padding:1rem 0}.stats-card__list{list-style:none;padding:0;margin:0;flex:1;display:flex;flex-direction:column;gap:.75rem}.stats-card__list-item{display:flex;justify-content:space-between;align-items:center;padding:1.25rem;background:#fff;border-radius:1.25rem;border:1px solid rgba(0,0,0,.06);box-shadow:0 4px 12px rgba(0,0,0,.03);font-size:1rem;color:var(--text);transition:all .2s ease}html.dark .stats-card__list-item{background:hsla(0,0%,100%,.03);border-color:hsla(0,0%,100%,.05)}.stats-card__list-item:hover{transform:translateX(6px) scale(1.01);box-shadow:0 4px 15px rgba(0,0,0,.05);background-origin:border-box;background-clip:padding-box,border-box;border:1px solid rgba(0,0,0,0);background-image:linear-gradient(#fff, #fff),linear-gradient(to right, var(--accent), #8b5cf6)}html.dark .stats-card__list-item:hover{background-image:linear-gradient(var(--field-bg), var(--field-bg)),linear-gradient(to right, var(--accent), #8b5cf6)}.stats-card__list-item--critical{justify-content:flex-start;gap:1.25rem}.stats-card__list-item--history{padding:1.5rem}.stats-card__list-item strong{font-family:var(--font-main);font-weight:700;color:var(--accent);font-size:1.1rem}.stats-card__meta{font-size:.85rem;display:flex;gap:1rem;opacity:.7;margin-top:.25rem}.stats-card__meta i{color:var(--accent)}.stats-card__item-name{font-weight:700;font-size:1.15rem;color:var(--text)}.stats-card__score-group{display:flex;align-items:center;gap:2rem}@media(max-width: 576px){.stats-card__score-group{gap:1rem}}.stats-card__score-label{text-align:right;display:flex;flex-direction:column;justify-content:center}.stats-card__score-label .stats-card__subtitle{margin:0 0 .25rem 0;width:auto;text-align:right;font-size:.65rem}.stats-card__score-label strong{font-size:1.5rem;display:block;line-height:1}.stats-card__score-badge{font-weight:800;font-size:.95rem;min-width:60px;text-align:center;padding:.5rem 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