*{box-sizing:border-box}body{color:#fff;background:linear-gradient(145deg,#5548e8 0%,#9136f0 48%,#f04790 100%);min-height:100vh;margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button{color:inherit;font:inherit;-webkit-tap-highlight-color:transparent;border:0}.hidden,.remove-ads-button{display:none!important}.app-shell{width:min(100%,500px);min-height:100vh;margin:0 auto;padding:18px 16px 24px}.app-shell.platform-shell{width:100%;max-width:none;padding:0}.platform-screen{color:#fff;background:linear-gradient(#ffffff1a,#0000 28%),linear-gradient(145deg,#5548e8 0%,#9136f0 48%,#f04790 100%);min-height:100vh}.platform-header{justify-content:space-between;align-items:center;gap:18px;width:min(1120px,100% - 32px);margin:0 auto;padding:18px 0;display:flex}.platform-header img{background:#fff;border-radius:16px;width:92px;box-shadow:0 12px 28px #2b1a6238}.platform-header a{color:#ffffffe0;font-size:.95rem;font-weight:900;text-decoration:none}.platform-hero{grid-template-columns:minmax(0,1fr) minmax(260px,360px);align-items:center;gap:28px;width:min(1120px,100% - 32px);margin:0 auto;padding:44px 0 30px;display:grid}.platform-kicker{color:#fef3c7;text-transform:uppercase;margin:0 0 12px;font-size:.95rem;font-weight:950}.platform-hero h1{max-width:760px;margin:0;font-size:clamp(2.4rem,8vw,5rem);line-height:.98}.platform-primary{color:#202735;background:#fff;border-radius:14px;min-height:58px;margin-top:28px;padding:0 24px;font-size:1.08rem;font-weight:950;box-shadow:0 6px #ffffff57}.platform-ad-slot{color:#ffffffc7;background:#ffffff1a;border:2px dashed #ffffff6b;border-radius:8px;place-items:center;min-height:280px;font-weight:900;display:grid}.platform-section{width:min(1120px,100% - 32px);margin:0 auto;padding:28px 0}.platform-section-title span{color:#fef3c7;text-transform:uppercase;font-weight:950}.platform-section-title strong{font-size:clamp(1.4rem,4vw,2.2rem)}.game-grid.compact{grid-template-columns:repeat(2,minmax(0,1fr))}.game-card{color:#202735;text-align:left;background:#fff;border-radius:8px;align-content:end;gap:8px;min-height:210px;padding:18px;display:grid;box-shadow:0 8px #ffffff57}.game-card img{border-radius:18px;width:116px;margin-bottom:auto}.game-card span{color:#4b3ff2;text-transform:uppercase;font-size:.85rem;font-weight:950}.game-card strong{font-size:1.35rem;line-height:1.08}.game-card small{color:#667085;font-size:.95rem;font-weight:800}.platform-info{grid-template-columns:minmax(0,1fr) minmax(260px,420px);align-items:center;gap:18px;padding-bottom:48px;display:grid}.platform-info h2{margin:0 0 10px;font-size:clamp(1.6rem,4vw,2.5rem)}.platform-info p{color:#ffffffdb;margin:0;font-weight:750;line-height:1.55}.platform-footer{flex-wrap:wrap;justify-content:center;gap:14px;width:min(1120px,100% - 32px);margin:0 auto;padding:0 0 34px;display:flex}.platform-footer a{color:#ffffffe0;font-size:.92rem;font-weight:900;text-decoration:none}.platform-back-button{color:#202735;background:#ffffffeb;border-radius:12px;align-self:center;min-height:42px;margin-bottom:14px;padding:0 16px;font-size:.95rem;font-weight:950}.boot-screen{background:radial-gradient(circle,#ffffff1f,#0000 34%),radial-gradient(circle,#232342 0%,#090913 64%,#020207 100%);flex-direction:column;justify-content:center;align-items:center;gap:28px;min-height:calc(100vh - 42px);margin:-18px -16px -24px;padding:18px 16px 24px;display:flex;position:relative;overflow:hidden}.boot-vignette,.boot-scanlines{pointer-events:none;position:absolute;inset:0}.boot-vignette{background:radial-gradient(circle,#0000 0 42%,#0000009e 100%)}.boot-scanlines{opacity:.16;background:repeating-linear-gradient(#ffffff1f 0 1px,#0000 2px 5px);animation:1.4s linear infinite scanline-drift}.boot-screen img{z-index:1;filter:drop-shadow(0 0 18px #7477ff80);background:#fff;border-radius:30px;width:min(82vw,360px);animation:2.1s cubic-bezier(.2,.8,.2,1) both retro-logo;position:relative;box-shadow:0 0 0 1px #ffffff29,0 24px 54px #0000006b}.boot-name{z-index:1;color:#ffffffdb;letter-spacing:.1em;text-align:center;text-transform:uppercase;text-shadow:0 0 12px #878cffcc;max-width:min(86vw,360px);margin:-10px 0 0;font-size:.82rem;font-weight:700;line-height:1.35;animation:2.2s both boot-text-fade;position:relative}.boot-loader{z-index:1;background:#ffffff29;border-radius:999px;width:min(210px,58vw);height:4px;position:relative;overflow:hidden;box-shadow:0 0 16px #767bff6b}.boot-loader span{border-radius:inherit;transform-origin:0;background:linear-gradient(90deg,#fff,#7d82ff,#fff);width:100%;height:100%;animation:2.4s forwards boot-load;display:block}@keyframes retro-logo{0%{opacity:0;filter:blur(10px)drop-shadow(0 0 #7477ff00);transform:translateY(26px)scale(.72)}38%{opacity:1;filter:blur()drop-shadow(0 0 30px #7477ffb8);transform:translateY(0)scale(1.08)}to{opacity:1;filter:blur()drop-shadow(0 0 18px #7477ff80);transform:translateY(0)scale(1)}}@keyframes boot-text-fade{0%,42%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes scanline-drift{0%{transform:translateY(0)}to{transform:translateY(5px)}}@keyframes boot-load{0%{transform:scaleX(0)}to{transform:scaleX(1)}}.menu-screen,.lesson-screen{flex-direction:column;justify-content:center;min-height:calc(100vh - 42px);display:flex}.menu-screen{text-align:center}#historyScreen{justify-content:flex-start}.language-logo{background:#fff;border-radius:24px;align-self:center;width:min(62vw,240px);margin-bottom:24px;box-shadow:0 20px 46px #1f125b38}.main-menu-logo{background:#fff;border-radius:26px;align-self:center;width:min(64vw,260px);margin:0 0 18px;box-shadow:0 0 0 1px #ffffff2e,0 16px 32px #37206e47}.language-menu{gap:12px;display:grid}.volume-control{color:#202735;background:#fffffff5;border-radius:14px;gap:12px;margin:0 0 18px;padding:16px;display:grid;box-shadow:0 6px #ffffff57}.volume-control label{justify-content:space-between;align-items:center;gap:12px;font-size:.98rem;font-weight:900;display:flex}.volume-control input{accent-color:#4b3ff2;width:100%}.volume-control button{color:#fff;background:#202735;border-radius:12px;min-height:44px;font-weight:900}.language-button{color:#202735;background:#fff;border-radius:14px;justify-content:center;align-items:center;gap:12px;min-height:58px;font-size:1.08rem;font-weight:950;display:flex;box-shadow:0 6px #ffffff6b}.language-button.active{color:#fff;background:#202735;outline:3px solid #ffffff80}.name-form{gap:12px;display:grid}.name-form input{color:#202735;width:100%;min-height:58px;font:inherit;background:#fff;border:0;border-radius:14px;outline:0;padding:0 16px;font-size:1.05rem;font-weight:850;box-shadow:0 6px #ffffff6b}.name-form button{color:#fff;background:#202735;border-radius:14px;min-height:58px;font-weight:950;box-shadow:0 6px #14182261}.certificate-card{color:#202735;background:radial-gradient(circle at 12% 18%,#5148e714,#0000 18%),radial-gradient(circle at 88% 18%,#5148e714,#0000 18%),#fff;border:5px double #5148e7;border-radius:16px;justify-items:center;gap:8px;margin-bottom:22px;padding:28px 18px 24px;display:grid;position:relative;overflow:hidden;box-shadow:0 24px 54px #1f125b40}.certificate-symbols{color:#5148e71f;letter-spacing:1.1rem;pointer-events:none;word-spacing:2.5rem;font-size:2rem;font-weight:950;position:absolute;inset:22px}.certificate-brand{place-items:center;width:100%;margin-bottom:4px;display:grid;position:relative}.certificate-brand img{object-fit:contain;border-radius:16px;width:min(62vw,245px);max-height:190px}.certificate-seal{background:radial-gradient(circle,#ffeaa2,#e4a823);border-radius:50%;place-items:center;width:78px;height:78px;font-size:2.7rem;display:grid;box-shadow:0 8px #2a268433}.certificate-card h1{color:#071d76;letter-spacing:.13em;text-transform:uppercase;text-align:center;font-size:2.08rem}.certificate-card h2{color:#5148e7;letter-spacing:.28em;text-transform:uppercase;margin:-4px 0 12px;font-size:1.05rem}.certificate-card p,.certificate-card small{color:#071d76;text-align:center;margin:0;font-weight:850;line-height:1.35}.certificate-card>strong{color:#4f46e5;text-align:center;border-bottom:2px solid #071d76;width:86%;min-height:44px;font-size:1.85rem;font-weight:950}.certificate-line{display:none}.certificate-achievements{grid-template-columns:repeat(2,1fr);gap:12px;width:100%;margin:16px 0 4px;display:grid}.certificate-achievements div{text-align:left;grid-template-columns:46px 1fr;align-items:center;gap:8px;display:grid}.certificate-achievements span{background:#5148e71f;border-radius:50%;grid-row:span 2;place-items:center;width:46px;height:46px;font-size:1.8rem;display:grid}.certificate-achievements .platinum-icon{filter:saturate(.75)hue-rotate(178deg);background:linear-gradient(135deg,#eef4fb,#9fb2c8);box-shadow:inset 0 2px 8px #ffffffb8,0 5px #3d526f40}.certificate-achievements strong{color:#6b2be8;font-size:.96rem;font-weight:950}.certificate-achievements small{text-align:left;font-size:.78rem}.certificate-footer{font-size:.95rem;margin-top:8px!important}.language-flag{font-size:1.45rem;line-height:1}.options-button,.fullscreen-button{color:#202735;background:#fffffff0;border-radius:999px;align-self:flex-end;min-width:92px;min-height:40px;margin-bottom:12px;font-size:.9rem;font-weight:950;box-shadow:0 4px #261c5e2e}.fullscreen-button{justify-content:center;align-items:center;gap:7px;min-width:128px;margin-top:-52px;margin-right:104px;display:inline-flex}.fullscreen-button span{font-size:1.05rem;line-height:1}.fullscreen-button.active{color:#fff;background:#202735}.safe-pill{color:#8d95a3;background:#f8f9fc;border-radius:999px;align-self:center;min-width:164px;margin-bottom:26px;padding:11px 22px;font-size:.94rem;font-weight:950;box-shadow:0 5px #261c5e2e}.streak-card{color:#fff;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff38;border-radius:999px;justify-content:center;align-self:center;align-items:center;gap:10px;min-width:228px;margin:0 0 24px;padding:10px 18px;font-weight:950;display:flex}.streak-card span{color:#ffffffd1}h1{color:#fff;margin:0;font-size:2.35rem;line-height:1.05}.screen-subtitle{color:#ffffffe0;margin:10px 0 40px;font-size:1rem;font-weight:800}.menu-list{gap:14px;margin-bottom:30px;display:grid}.rule-alert{color:#7c2d12;background:#fffffff0;border-radius:14px;margin:-18px 0 22px;padding:14px 16px;font-weight:900;line-height:1.35;box-shadow:0 5px #261c5e2e}.menu-card{min-height:90px;color:var(--accent);text-align:left;background:#fff;border-radius:14px;align-items:center;gap:16px;padding:16px;display:flex;box-shadow:0 6px #ffffff7a}.menu-card strong{font-size:1.28rem;font-weight:950}.menu-card:disabled,.mixed-button:disabled{opacity:.54;filter:grayscale(.35)}.menu-icon{background:var(--soft);border-radius:50%;place-items:center;width:56px;height:56px;font-size:1.6rem;font-weight:950;display:grid}.mixed-button{color:#fff;background:linear-gradient(135deg,#ffc42f,#ff751c);border-radius:14px;justify-content:center;align-items:center;gap:12px;min-height:76px;font-size:1.38rem;display:flex;box-shadow:0 6px #74263c6b}.reinforcement-button{color:#202735;background:#fff;border-radius:14px;justify-content:center;align-items:center;gap:12px;min-height:76px;margin-bottom:14px;font-size:1.28rem;display:flex;box-shadow:0 6px #ffffff7a}.history-button{color:#fff;background:#202735;border-radius:14px;justify-content:center;align-items:center;gap:12px;min-height:70px;margin-bottom:14px;font-size:1.18rem;display:flex;box-shadow:0 6px #14182261}.remove-ads-button{color:#202735;background:linear-gradient(135deg,#fff7ed,#fff);border-radius:14px;justify-content:center;align-items:center;gap:10px;min-height:64px;margin-bottom:14px;font-size:1.08rem;display:flex;box-shadow:0 5px #ffffff5c}.remove-ads-button.purchased{color:#166534;background:linear-gradient(135deg,#dcfce7,#fff)}.final-marathon-button{color:#202735;background:linear-gradient(135deg,#edf2ff,#fff);border-radius:14px;justify-content:center;align-items:center;gap:12px;min-height:70px;margin-bottom:14px;font-size:1.18rem;display:flex;box-shadow:0 6px #ffffff6b}.final-marathon-button.locked{opacity:.45;filter:grayscale(.85)}.marathon-dialog p{white-space:pre-line}.notification-button{color:#202735;background:#fffffff0;border-radius:14px;justify-content:center;align-items:center;gap:10px;min-height:62px;margin-bottom:14px;font-size:1.08rem;display:flex;box-shadow:0 5px #ffffff57}.back-button{color:#202735;background:#fffffff2;border-radius:50%;place-items:center;width:46px;height:46px;font-size:2rem;font-weight:950;display:grid;position:fixed;top:16px;left:max(16px,50vw - 234px);box-shadow:0 5px #261c5e2e}.table-menu{grid-template-columns:repeat(2,1fr);gap:14px;display:grid}.table-card{color:#202735;background:#fff;border-radius:14px;place-items:center;min-height:84px;font-size:2.1rem;font-weight:950;display:grid;position:relative;box-shadow:0 6px #ffffff7a}.table-card small{color:#4f46e5;text-align:center;font-size:.82rem;font-weight:950;position:absolute;bottom:8px;left:0;right:0}.table-card-main{place-items:center;width:100%;display:grid}.table-medal{font-size:1.55rem;line-height:1;position:absolute;top:-3px;right:14px}.review-list{gap:8px;margin-bottom:22px;display:grid}.review-row{color:#202735;background:#fffffff0;border-radius:12px;justify-content:center;align-items:center;min-height:48px;padding:10px 16px;font-size:1.12rem;font-weight:900;display:flex;box-shadow:0 4px #ffffff57}.review-row strong{color:#7d82ff;font-size:1.2rem}.lesson-top{grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:12px;display:grid}.exit-lesson-button{color:#202735;background:#fffffff0;border-radius:999px;align-self:flex-start;min-width:78px;min-height:40px;margin-bottom:12px;font-weight:950;box-shadow:0 4px #261c5e2e}.combo-pill{color:#202735;background:#fffffff0;border-radius:14px;justify-content:space-between;align-items:center;min-height:56px;padding:10px 14px;display:flex;box-shadow:0 5px #261c5e2e}.combo-pill span{color:#7d8490;font-size:.86rem;font-weight:900}.combo-pill strong{font-size:1.55rem;font-weight:950}.lesson-progress{color:#fff;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fff3;border-radius:14px;margin-bottom:16px;padding:12px}.lesson-progress>div:first-child{justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px;font-weight:950;display:flex}.lesson-progress strong{color:#ffffffdb}.lesson-progress-track{background:#ffffff47;border-radius:999px;height:12px;overflow:hidden}.lesson-progress-track span{border-radius:inherit;background:#fff;width:0;height:100%;transition:width .22s;display:block}.question-panel{color:#202735;background:#fff;border:0;border-radius:28px;padding:34px 32px 32px;box-shadow:0 22px 44px #1f125b38}.question-panel.right{outline:4px solid #24c36059}.question-panel.wrong{outline:4px solid #ff696c59}.equation{text-align:center;grid-template-columns:repeat(5,minmax(0,1fr));align-items:center;gap:7px;margin-bottom:30px;font-size:2.65rem;font-weight:950;display:grid}.equation span:nth-child(4){color:#7d82ff}.answer-display{color:#202735;background:#f1f2f4;border-radius:14px;place-items:center;min-height:94px;font-size:2rem;font-weight:950;display:grid;box-shadow:inset 0 2px 6px #21283514,inset 0 -3px #21283514}.answer-display.right{color:#159447;background:#e9fbea}.answer-display.wrong{color:#e04444;background:#fff0f0}.keypad{grid-template-columns:repeat(3,1fr);gap:9px 12px;width:min(100%,386px);margin:24px auto 0;display:grid}.keypad button{color:#202735;background:#fff;border-radius:14px;min-height:66px;font-size:1.7rem;font-weight:950;box-shadow:0 6px #20273529}.keypad .clear-key{color:#fff;background:#ff6b70}.keypad .ok-key{color:#fff;background:#27c45f}.lesson-result{color:#fff;text-align:center;min-height:32px;margin-top:16px;font-size:1.1rem;font-weight:950}.confirm-overlay{z-index:20;background:#160e3694;place-items:center;padding:20px;display:grid;position:fixed;inset:0}.confirm-dialog{color:#202735;text-align:center;background:#fff;border-radius:22px;width:min(100%,360px);padding:22px;box-shadow:0 24px 54px #1f125b47}.confirm-dialog h2{margin:0 0 8px;font-size:1.55rem}.confirm-dialog p{color:#6b7280;margin:0 0 18px;font-weight:850}.confirm-dialog button{border-radius:14px;width:100%;min-height:52px;font-weight:950;display:block}.confirm-exit{color:#fff;background:#ff6b70;margin-bottom:10px}.cancel-exit{color:#fff;background:#27c45f}.medal-result{color:#202735;background:#fffffff0;border-radius:18px;justify-items:center;gap:8px;margin:-18px 0 22px;padding:18px;display:grid;box-shadow:0 6px #ffffff57}.medal-result.gold{background:linear-gradient(135deg,#fff7c2,#ffd447)}.medal-result.silver{background:linear-gradient(135deg,#f8fafc,#cbd5e1)}.medal-result.bronze{background:linear-gradient(135deg,#ffe6c7,#d88945)}.medal-icon{font-size:3.2rem;line-height:1}.medal-result strong{font-size:1.7rem;font-weight:950}.medal-result span,.medal-result p,.medal-result small{margin:0;font-weight:900}.medal-result p{line-height:1.35}.medal-result small{color:#6b7280;line-height:1.35}.completion-stats{grid-template-columns:repeat(2,1fr);gap:10px;margin:-8px 0 18px;display:grid}.completion-stats div{color:#202735;background:#fffffff0;border-radius:14px;align-content:center;min-height:68px;padding:10px;display:grid;box-shadow:0 5px #ffffff57}.completion-stats span{color:#7d8490;font-size:.78rem;font-weight:950}.completion-stats strong{margin-top:3px;font-size:1.28rem;font-weight:950}.share-button{color:#fff;background:#202735;border-radius:14px;justify-content:center;align-items:center;gap:10px;width:100%;min-height:58px;margin-bottom:12px;font-weight:950;display:flex;box-shadow:0 6px #14182261}.memory-tip{color:#202735;text-align:left;background:#fffffff0;border-radius:18px;margin:-8px 0 22px;padding:16px;box-shadow:0 6px #ffffff57}.memory-tip strong{color:#4f46e5;margin-bottom:8px;font-size:1.1rem;font-weight:950;display:block}.memory-tip-equation{border-top:1px solid #4f46e529;margin-top:10px;padding-top:10px}.memory-tip-equation span{color:#202735;font-size:1.05rem;font-weight:950;display:block}.memory-tip p{color:#4b5563;margin:6px 0 0;font-weight:850;line-height:1.35}.history-header{align-items:center;min-height:48px;margin-bottom:16px;display:grid;position:relative}.history-header h1{text-align:center;font-size:1.45rem}.history-back-button{color:#202735;background:#ffffff14;border:1px solid #2027352e;border-radius:8px;place-items:center;width:48px;height:34px;font-size:1.25rem;font-weight:950;display:grid;position:absolute;left:0}.history-stats,.medal-stats{gap:8px;margin-bottom:10px;display:grid}.history-stats{grid-template-columns:repeat(2,1fr)}.medal-stats{grid-template-columns:repeat(3,1fr)}.history-stats>div,.medal-stats>div{color:#202735;background:#ffffff29;border-radius:12px;align-content:center;gap:2px;min-height:58px;padding:8px;display:grid}.history-stats span,.medal-stats span{color:#ffffffd1;font-size:.72rem;font-weight:950}.history-stats strong,.medal-stats strong{color:#fff;font-size:1.18rem;font-weight:950}.medal-stats .gold strong{color:#ffe58a}.medal-stats .silver strong{color:#e5e7eb}.medal-stats .bronze strong{color:#ffc185}.progress-backup-panel{color:#202735;text-align:left;background:#fffffff2;border-radius:14px;gap:12px;margin-top:14px;padding:14px;display:grid;box-shadow:0 4px #ffffff5c}.progress-backup-panel strong{font-weight:950;display:block}.progress-backup-panel p{color:#6b7280;margin:4px 0 0;font-size:.82rem;font-weight:850;line-height:1.35}.backup-actions{grid-template-columns:repeat(2,1fr);gap:10px;display:grid}.backup-actions button{color:#fff;background:#202735;border-radius:12px;justify-content:center;align-items:center;gap:8px;min-height:48px;font-weight:950;display:flex;box-shadow:0 4px #14182247}.backup-actions span{font-size:1.1rem;line-height:1}.progress-backup-panel .backup-status{color:#4338ca;background:#eef2ff;border-radius:10px;margin-top:0;padding:8px 10px}.progress-backup-panel .backup-status.error{color:#be123c;background:#fff1f2}.history-panel{background:0 0;margin-top:14px;padding:0}.history-panel h2{display:none}#historyList{gap:12px;display:grid}.history-result-card{color:#202735;text-align:left;background:#fff;border-radius:14px;align-items:flex-start;gap:10px;padding:14px 16px;display:flex;box-shadow:0 4px #ffffff6b}.history-medal{background:#eef2ff;border-radius:50%;place-items:center;width:32px;height:32px;font-size:1.1rem;display:grid}.history-main{flex:1;min-width:0}.history-card-top{justify-content:space-between;gap:12px;display:flex}.history-card-top div:last-child{text-align:right;min-width:78px}.history-card-top strong{font-size:.95rem;font-weight:950;display:block}.history-card-top div:last-child strong{color:#4f46e5;font-size:1.05rem}.history-card-top span,.empty-history{color:#8b93a3;font-size:.78rem;font-weight:850;display:block}.empty-history{text-align:center;background:#fff;border-radius:14px;padding:16px}.mistake-pills{flex-wrap:wrap;gap:6px;margin-top:10px;display:flex}.mistake-pills span{color:#dc2626;background:#fff5f5;border:1px solid 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a:hover{color:#168f57}.social-links a{color:#10213d;background:#ffffff8a;border:1px solid #10213d24;border-radius:50%;place-items:center;width:40px;height:40px;font-size:.78rem;display:grid}@media (width<=900px){.platform-header{flex-direction:column;align-items:stretch}.platform-brand{min-width:0}.platform-header nav{grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.platform-header nav a{text-align:center;background:#ffffff8a}.platform-hero,.platform-info,.lead-section{grid-template-columns:1fr}.platform-hero{min-height:auto;padding-top:54px}.platform-ad-slot{min-height:180px}.game-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=620px){.platform-header,.platform-hero,.category-strip,.platform-section,.platform-footer{padding-left:16px;padding-right:16px}.platform-brand img,.platform-header img{width:52px;height:52px}.platform-brand 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