:root{--brand:#7e22ce;--brand-2:#5D5CDE;--ink:#172033;--muted:#687386;--line:#e6e9f0;--surface:#fff;--surface-2:#f7f8fc;--page:#f5f6fb;--shadow:0 16px 45px rgba(24,31,52,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--page);color:var(--ink);font-family:'Outfit','Tajawal',sans-serif;line-height:1.55;transition:background .2s,color .2s}html[lang=ar] body{font-family:'Tajawal',sans-serif}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}.container{width:min(1160px,calc(100% - 40px));margin-inline:auto}.dark{--ink:#edf0f8;--muted:#a5aec0;--line:#30394b;--surface:#1b2332;--surface-2:#222c3d;--page:#111827;--shadow:0 16px 45px rgba(0,0,0,.22)}.site-header{position:sticky;top:0;z-index:100;background:color-mix(in srgb,var(--surface) 92%,transparent);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.header-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;white-space:nowrap}.brand-mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:grid;place-items:center;color:#fff;box-shadow:0 7px 18px #7e22ce35}.nav-links,.header-actions{display:flex;align-items:center;gap:22px}.nav-links a{font-size:13px;font-weight:600;color:var(--muted);transition:color .2s}.nav-links a:hover{color:var(--brand)}.header-actions{gap:10px}.icon-btn,.lang-link,.join-btn,.menu-btn{height:40px;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:12px;display:inline-flex;align-items:center;justify-content:center;padding:0 12px;gap:8px;font-size:13px;font-weight:700}.icon-btn{width:40px;padding:0}.lang-link{color:var(--brand)}.join-btn{background:var(--brand);color:#fff;border-color:var(--brand)}.menu-btn{display:none;width:42px;padding:0}.mobile-menu{display:none;border-top:1px solid var(--line);padding:10px 20px 16px;background:var(--surface)}.mobile-menu.is-open{display:grid;gap:4px}.mobile-menu a{padding:11px 8px;color:var(--muted);font-weight:700}.hero{padding:54px 0 28px;text-align:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand);background:#7e22ce12;border:1px solid #7e22ce20;padding:7px 12px;border-radius:999px;font-size:11px;font-weight:800;letter-spacing:.06em}.hero h1{font-size:clamp(30px,4vw,48px);line-height:1.12;letter-spacing:-.035em;margin:17px 0 12px;font-weight:850}.hero h1 span{background:linear-gradient(110deg,var(--brand),var(--brand-2));background-clip:text;-webkit-background-clip:text;color:transparent}.hero p{max-width:720px;margin:0 auto;color:var(--muted);font-size:16px}.trust-row{display:flex;justify-content:center;flex-wrap:wrap;gap:9px;margin-top:20px}.trust-pill{display:inline-flex;align-items:center;gap:7px;color:var(--muted);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:7px 11px;font-size:11px;font-weight:700}.trust-pill i{color:#16a36a}.ad-slot{width:min(970px,100%);margin:20px auto 30px;min-height:104px;padding:8px 12px;display:flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:16px;background:color-mix(in srgb,var(--surface) 70%,var(--page))}.ad-slot>div{width:100%;text-align:center}.ad-slot-label{font-size:9px;color:var(--muted);letter-spacing:.1em;margin-bottom:4px}.workspace{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(330px,.92fr);gap:24px;align-items:start;padding:8px 0 34px}.editor-column{display:grid;gap:15px;min-width:0}.preview-column{position:sticky;top:94px;min-width:0}.panel{background:var(--surface);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}.control-section{overflow:hidden}.section-heading{width:100%;border:0;background:transparent;color:var(--ink);display:flex;align-items:center;gap:12px;text-align:start;padding:19px 20px}.section-icon{width:36px;height:36px;border-radius:12px;display:grid;place-items:center;background:#7e22ce12;color:var(--brand);flex:0 0 auto}.section-title{display:grid;gap:2px;flex:1}.section-title strong{font-size:14px}.section-title small{font-size:11px;color:var(--muted);font-weight:500}.section-chevron{color:var(--muted);transition:transform .2s}.control-section.is-collapsed .section-chevron{transform:rotate(-90deg)}html[dir=rtl] .control-section.is-collapsed .section-chevron{transform:rotate(90deg)}.section-content{padding:0 20px 20px}.control-section.is-collapsed .section-content{display:none}.field-grid,.settings-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.field-wrap,.setting{display:grid;gap:6px;min-width:0}.field-wrap:has(textarea),.setting.full{grid-column:1/-1}.field-wrap label,.setting label{font-size:11px;font-weight:800;color:var(--muted)}.field-wrap input,.field-wrap textarea,.setting select{width:100%;min-width:0;border:1px solid var(--line);border-radius:11px;background:var(--surface-2);color:var(--ink);padding:11px 12px;outline:none;font-size:13px;transition:border .2s,box-shadow .2s}.field-wrap textarea{resize:vertical;min-height:76px}.field-wrap input:focus,.field-wrap textarea:focus,.setting select:focus{border-color:var(--brand);box-shadow:0 0 0 3px #7e22ce18}.button-row{display:flex;gap:8px;flex-wrap:wrap}.button-row>*{flex:1}.primary-action,.secondary-action,.danger-action{border:1px solid transparent;border-radius:11px;padding:11px 14px;font-size:11px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:40px}.primary-action{background:linear-gradient(110deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 8px 18px #7e22ce25}.secondary-action{background:var(--surface-2);border-color:var(--line);color:var(--ink)}.danger-action{background:#fff1f2;border-color:#f7d8dd;color:#bd4052}.dark .danger-action{background:#452832;border-color:#65404a;color:#ffb9c4}.editor-subhead{display:flex;justify-content:space-between;align-items:center;margin-top:22px;padding-top:16px;border-top:1px solid var(--line);font-size:13px}.editor-subhead span{font-size:11px;color:var(--muted)}.card-list{display:grid;gap:8px;margin-top:12px;max-height:380px;overflow:auto}.list-card{border:1px solid var(--line);background:var(--surface-2);border-radius:12px;padding:11px;display:grid;gap:8px}.list-card-top{display:flex;justify-content:space-between;align-items:center;gap:8px}.list-card-top strong{font-size:11px;color:var(--brand)}.list-card p{margin:0;font-size:11px;color:var(--muted);overflow-wrap:anywhere}.list-actions{display:flex;gap:6px}.list-actions button{border:1px solid var(--line);background:var(--surface);color:var(--muted);border-radius:8px;padding:6px 9px;font-size:10px}.empty-list{padding:22px;text-align:center;display:grid;justify-items:center;gap:5px;color:var(--muted);font-size:11px}.empty-list i{font-size:25px;color:var(--brand)}.empty-list strong{color:var(--ink);font-size:13px}.file-label{cursor:pointer}.settings-actions{margin-top:18px}.segmented{display:flex;gap:7px;flex-wrap:wrap}.seg-btn{flex:1;min-width:65px;border:1px solid var(--line);background:var(--surface-2);color:var(--muted);border-radius:10px;padding:9px;font-size:11px;font-weight:700}.seg-btn.active{background:#7e22ce12;color:var(--brand);border-color:var(--brand)}.study-panel{padding:22px}.study-head{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}.section-kicker{font-size:10px;color:var(--brand);font-weight:850;letter-spacing:.1em}.study-head h2{font-size:20px;margin:5px 0 0;overflow-wrap:anywhere}.live-indicator{font-size:9px;color:#159765;font-weight:850;white-space:nowrap}.study-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin:20px 0 14px}.study-stats div{display:grid;gap:2px;text-align:center;background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:10px 5px}.study-stats strong{font-size:20px;color:var(--brand)}.study-stats span{font-size:10px;color:var(--muted)}.progress-track{height:7px;border-radius:20px;background:var(--line);overflow:hidden}.progress-track span{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand-2));transition:width .2s}.progress-caption{display:flex;justify-content:space-between;color:var(--muted);font-size:10px;margin:7px 0 15px}.flashcard{width:100%;min-height:310px;border:1px solid #e5d9f2;border-radius:18px;padding:24px;background:#fff;color:#211b2d;display:flex;flex-direction:column;align-items:center;justify-content:space-between;text-align:center;gap:18px;box-shadow:0 15px 35px rgba(50,25,80,.09);transition:transform .2s,background .2s}.flashcard:focus-visible{outline:3px solid #b99be0;outline-offset:3px}.flashcard.theme-gradient{background:linear-gradient(135deg,#7e22ce,#5D5CDE);color:white;border:0}.flashcard.theme-dark{background:#211d2d;color:#f7f3ff;border-color:#433751}.flip-label{font-size:10px;font-weight:850;letter-spacing:.08em;color:#8a7b9c}.theme-gradient .flip-label,.theme-dark .flip-label{color:#ded0f2}.flashcard-content{font-size:clamp(19px,2.2vw,27px);font-weight:750;line-height:1.55;overflow-wrap:anywhere;white-space:pre-wrap;max-width:100%}.flip-icon{font-size:10px;color:#92879e}.theme-gradient .flip-icon,.theme-dark .flip-icon{color:#ded0f2}.study-controls{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:13px}.rating-controls{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:10px}.rating-btn{border:1px solid var(--line);border-radius:11px;padding:11px 7px;background:var(--surface-2);display:flex;align-items:center;justify-content:center;gap:7px;font-size:10px;font-weight:800;color:var(--muted)}.rating-btn.missed{color:#b87518;background:#fff9ed;border-color:#f2e2bf}.rating-btn.mastered{color:#16835a;background:#effaf5;border-color:#ccebdc}.dark .rating-btn.missed{background:#3b3020;border-color:#5b4930}.dark .rating-btn.mastered{background:#1e3a32;border-color:#315b4b}.study-hint{font-size:10px;line-height:1.6;color:var(--muted);margin:15px 0 0}.study-hint i{color:var(--brand)}.below-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:5px 0 48px}.info-card{padding:20px}.info-card h2{font-size:15px;margin:0 0 13px}.info-card h2 i{color:var(--brand)}.tip-list{display:grid;gap:11px;margin:0;padding:0;list-style:none}.tip-list li{display:flex;gap:9px;color:var(--muted);font-size:11px}.tip-list li i{color:var(--brand);margin-top:3px}.faq-list{display:grid;gap:9px}.faq-list details{border:1px solid var(--line);border-radius:12px;padding:12px 13px}.faq-list summary{font-size:11px;font-weight:800;cursor:pointer}.faq-list p{margin:8px 0 0;color:var(--muted);font-size:11px}.site-footer{border-top:1px solid var(--line);background:var(--surface);padding:25px 0 18px}.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}.footer-inner p{color:var(--muted);font-size:11px}.footer-links{display:flex;gap:17px;flex-wrap:wrap;color:var(--muted);font-size:11px}.footer-bottom{border-top:1px solid var(--line);margin-top:15px;padding-top:14px;color:var(--muted);font-size:10px;text-align:center}.toast-host{position:fixed;top:84px;left:50%;transform:translateX(-50%);z-index:5000;display:grid;gap:8px;width:min(92vw,420px);pointer-events:none}.toast{padding:11px 15px;border-radius:12px;background:#273449;color:#fff;box-shadow:0 12px 28px #0002;font-size:12px;font-weight:700;opacity:0;transform:translateY(-8px);transition:.2s}.toast.show{opacity:1;transform:translateY(0)}html[lang=ar] .hero h1{letter-spacing:0}html[lang=ar] .flashcard-content{text-align:center}html[lang=ar] .field-wrap input,html[lang=ar] .field-wrap textarea{font-family:'Tajawal',sans-serif}@media(max-width:900px){.workspace{grid-template-columns:1fr}.preview-column{position:static;order:-1}.editor-column{order:1}.below-grid{grid-template-columns:1fr}}@media(max-width:650px){.container{width:min(100% - 26px,560px)}.header-inner{height:64px}.nav-links,.join-btn{display:none}.menu-btn{display:inline-flex}.header-actions{gap:7px}.brand{font-size:16px}.hero{padding:35px 0 20px}.hero h1{font-size:31px}.hero p{font-size:13px}.trust-pill{font-size:9px;padding:6px 8px}.ad-slot{min-height:90px;margin:13px auto 21px}.workspace{gap:14px}.section-heading{padding:15px}.section-content{padding:0 15px 16px}.field-grid,.settings-grid{grid-template-columns:1fr}.field-wrap:has(textarea),.setting.full{grid-column:auto}.study-panel{padding:15px}.flashcard{min-height:270px;padding:20px}.study-head{flex-direction:column}.footer-inner{justify-content:center;text-align:center}.footer-links{justify-content:center}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}}