:root{--bg:#090d1a;--surface:rgba(23,29,59,.9);--surface2:#151b36;--border:rgba(194,178,255,.18);--primary:#9b7bff;--accent:#65e1dc;--text:#f7f4ff;--muted:#aeb5d7;--success:#65df90;--error:#ff819e;--warning:#ffd071;--shadow:0 18px 55px rgba(0,0,0,.36)}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:#050711;color:var(--text);font-family:Inter,Arial,sans-serif;-webkit-tap-highlight-color:transparent}body{display:flex;justify-content:center;overflow-x:hidden}button,textarea,select{font:inherit}.app{width:min(100%,520px);min-height:100vh;position:relative;overflow:hidden;background:radial-gradient(circle at 90% 2%,rgba(155,123,255,.2),transparent 26%),radial-gradient(circle at 4% 40%,rgba(101,225,220,.08),transparent 24%),linear-gradient(180deg,#0d1226,#080b17)}.screen{display:none;min-height:100vh;padding:18px 16px 118px;position:relative;z-index:1}.screen.active{display:block}.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:15px}.brand{font-size:24px;font-weight:950;letter-spacing:1px}.brand span{color:var(--accent)}.top-actions{display:flex;align-items:center;gap:7px}.xp-badge,.life-badge,.sync-pill{border:1px solid var(--border);border-radius:999px;background:rgba(255,255,255,.05);font-size:11px;font-weight:850;padding:8px 10px;white-space:nowrap}.life-badge{color:#ffd4df;background:rgba(255,129,158,.09)}.sync-pill{display:inline-flex;align-items:center;gap:6px;padding:5px 8px;color:var(--muted);font-size:9px;margin-top:4px}.sync-pill i{width:6px;height:6px;border-radius:50%;background:var(--warning)}.sync-pill.online i{background:var(--success)}.sync-pill.error i{background:var(--error)}.card{border:1px solid var(--border);border-radius:24px;background:linear-gradient(180deg,rgba(28,34,69,.9),rgba(17,22,47,.88));box-shadow:var(--shadow)}.hero{position:relative;min-height:460px;padding:22px;overflow:hidden;border-radius:32px}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:24px 24px;mask-image:linear-gradient(transparent,black 15%,black 75%,transparent)}.hero-copy{position:relative;z-index:3;width:57%;padding-top:7px}.kicker{font-size:10px;text-transform:uppercase;letter-spacing:1.1px;font-weight:900;color:var(--accent)}.hero h1{font-size:36px;line-height:1.02;margin:9px 0 11px}.hero p,.screen-intro{font-size:13px;line-height:1.5;color:var(--muted);margin:0}.hero-glow{position:absolute;width:260px;height:260px;border-radius:50%;right:2%;bottom:56px;background:radial-gradient(circle,rgba(155,123,255,.26),transparent 67%);filter:blur(8px)}.hero-img{position:absolute;right:-44px;bottom:2px;width:70%;height:89%;object-fit:contain;object-position:bottom;filter:drop-shadow(0 22px 28px rgba(70,48,145,.4));animation:float 4.6s ease-in-out infinite}.hero-actions{position:absolute;z-index:5;left:20px;right:20px;bottom:20px;display:grid;gap:9px}.btn{border:0;border-radius:17px;padding:14px 16px;font-weight:900;color:#151027;background:linear-gradient(135deg,#c9bcff,#7de6e1);box-shadow:0 12px 28px rgba(101,225,220,.13);cursor:pointer;text-align:center;text-decoration:none}.btn.secondary{color:var(--text);background:rgba(255,255,255,.06);border:1px solid var(--border);box-shadow:none}.btn:disabled{opacity:.45}.stats-grid,.profile-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin-top:13px}.stat{padding:13px 8px;text-align:center}.stat b{display:block;font-size:19px}.stat span{font-size:10px;color:var(--muted)}.progress-card{padding:16px;margin-top:12px}.row{display:flex;justify-content:space-between;gap:12px;font-size:13px}.row span{color:var(--muted)}.progress{height:9px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden;margin-top:10px}.progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--primary),var(--accent));transition:.35s}.life-timer{font-size:10px;color:var(--muted);margin-top:8px}.section-head{display:flex;align-items:end;justify-content:space-between;margin:20px 2px 10px}.section-head h2{margin:0;font-size:20px}.section-head button{border:0;background:none;color:var(--accent);font-weight:800}.quick-lessons{display:grid;grid-template-columns:repeat(2,1fr);gap:9px}.quick-card{padding:14px;border:1px solid rgba(255,255,255,.08);border-radius:20px;background:rgba(255,255,255,.045);color:var(--text);text-align:left}.quick-card b{display:block;font-size:13px}.quick-card small{display:block;margin-top:5px;color:var(--muted);font-size:10px}.quick-card.done{border-color:rgba(101,223,144,.3);background:rgba(101,223,144,.07)}.daily{padding:16px;margin-top:13px;display:flex;justify-content:space-between;align-items:center}.daily h3{margin:6px 0 4px;font-size:16px}.daily p{margin:0;color:var(--muted);font-size:11px}.daily-mark{font-size:36px}.home-deco{height:155px;position:relative;margin:10px -8px 0}.home-deco img{position:absolute;left:-20px;bottom:-23px;width:108%;height:180px;object-fit:contain;object-position:left bottom;filter:drop-shadow(0 18px 30px rgba(70,50,150,.34))}.module-list{display:grid;gap:13px}.module{padding:14px}.module-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:11px}.module-head h2{font-size:17px;margin:4px 0 0}.module-head p{font-size:10px;color:var(--muted);margin:3px 0 0}.module-tag{font-size:9px;border-radius:999px;padding:6px 8px;background:rgba(101,225,220,.1);color:var(--accent);border:1px solid rgba(101,225,220,.2)}.module.locked .module-tag{background:rgba(255,208,113,.1);color:var(--warning);border-color:rgba(255,208,113,.2)}.lesson-list{display:grid;gap:7px}.lesson-card{display:grid;grid-template-columns:39px 1fr auto;align-items:center;gap:10px;width:100%;padding:10px;border:1px solid rgba(255,255,255,.07);border-radius:16px;background:rgba(255,255,255,.035);color:var(--text);text-align:left}.lesson-card.done{border-color:rgba(101,223,144,.26);background:rgba(101,223,144,.06)}.lesson-card.locked{opacity:.62}.lesson-num{width:39px;height:39px;border-radius:13px;display:grid;place-items:center;background:rgba(155,123,255,.14);font-weight:900}.lesson-copy b{display:block;font-size:12px}.lesson-copy small{display:block;font-size:9px;color:var(--muted);margin-top:3px}.lesson-status{font-size:16px;color:var(--muted)}.segmented{display:grid;grid-template-columns:1fr 1fr;padding:4px;border:1px solid var(--border);border-radius:16px;background:rgba(255,255,255,.04);margin-bottom:12px}.segmented button{border:0;border-radius:12px;padding:10px;background:transparent;color:var(--muted);font-weight:850}.segmented button.active{background:rgba(155,123,255,.17);color:#fff}.my-rank{padding:16px;margin-bottom:11px;display:grid;grid-template-columns:1fr auto;align-items:center}.my-rank span{font-size:11px;color:var(--muted)}.my-rank b{font-size:29px;grid-row:1/3;grid-column:2}.my-rank small{font-size:10px;color:var(--muted)}.leaderboard{display:grid;gap:7px}.rank-row{display:grid;grid-template-columns:31px 42px 1fr auto;align-items:center;gap:9px;padding:10px;border:1px solid rgba(255,255,255,.07);border-radius:17px;background:rgba(255,255,255,.035)}.rank-row.me{border-color:rgba(101,225,220,.3);background:rgba(101,225,220,.07)}.rank-number{font-weight:950;text-align:center}.rank-avatar{width:42px;height:42px;border-radius:14px;object-fit:cover;background:rgba(155,123,255,.15)}.rank-name b{display:block;font-size:12px}.rank-name small{font-size:9px;color:var(--muted)}.rank-xp{text-align:right;font-weight:900;font-size:12px}.empty{padding:22px;text-align:center;color:var(--muted);font-size:12px}.skin-grid{display:grid;gap:12px;margin-top:13px}.skin-card{overflow:hidden}.skin-preview{height:300px;position:relative;background:radial-gradient(circle at 55% 34%,rgba(155,123,255,.24),transparent 55%),#0a0e1d}.skin-preview.cyber{background:radial-gradient(circle at 55% 34%,rgba(45,218,224,.2),transparent 52%),#080d18}.skin-preview img{width:100%;height:100%;object-fit:contain;object-position:center bottom;filter:drop-shadow(0 20px 26px rgba(0,0,0,.35))}.skin-copy{padding:15px;display:flex;align-items:center;justify-content:space-between;gap:12px}.skin-copy h3{margin:0 0 5px}.skin-copy p{margin:0;color:var(--muted);font-size:10px}.skin-copy .btn{padding:10px 12px;font-size:10px}.skin-card.selected{border-color:rgba(101,225,220,.5);box-shadow:0 0 0 1px rgba(101,225,220,.2),var(--shadow)}.profile-card{position:relative;min-height:220px;padding:18px;overflow:hidden}.user-line{display:flex;align-items:center;gap:11px;position:relative;z-index:2;max-width:65%}.user-avatar{width:50px;height:50px;border-radius:16px;object-fit:cover;background:rgba(155,123,255,.15);border:1px solid var(--border)}.user-line h2{font-size:18px;margin:0 0 4px}.user-line p{font-size:10px;color:var(--muted);margin:0}.profile-char{position:absolute;right:-15px;bottom:-20px;width:45%;height:120%;object-fit:contain;object-position:bottom;opacity:.8}.achievements{display:grid;grid-template-columns:repeat(2,1fr);gap:9px}.achievement{padding:13px;border:1px solid rgba(255,255,255,.07);border-radius:18px;background:rgba(255,255,255,.035)}.achievement.locked{opacity:.38;filter:grayscale(.7)}.achievement i{display:block;font-style:normal;font-size:23px;margin-bottom:7px}.achievement b{display:block;font-size:11px}.achievement small{font-size:9px;color:var(--muted)}.settings{display:grid;gap:9px;margin-top:15px}.setting{border:1px solid var(--border);width:100%;padding:14px;display:flex;align-items:center;justify-content:space-between;background:linear-gradient(180deg,rgba(28,34,69,.9),rgba(17,22,47,.88));color:var(--text);text-align:left;text-decoration:none}.setting b{display:block;font-size:12px}.setting small{display:block;font-size:9px;color:var(--muted);margin-top:4px}.setting em{font-style:normal;font-size:22px;color:var(--muted)}.setting.danger b{color:var(--error)}.back{width:42px;height:42px;border:1px solid var(--border);border-radius:14px;background:rgba(255,255,255,.05);color:#fff}.lesson-hero{position:relative;min-height:170px;padding:18px;overflow:hidden}.lesson-hero h1{font-size:28px;line-height:1.07;margin:8px 0;max-width:67%}.lesson-hero p{font-size:12px;line-height:1.4;color:var(--muted);max-width:66%;margin:0}.lesson-hero img{position:absolute;right:-12px;bottom:-18px;width:40%;height:125%;object-fit:contain;object-position:bottom}.theory{padding:17px;margin-top:12px}.theory h3{font-size:16px;margin:0 0 9px}.theory h3:not(:first-child){margin-top:15px}.theory p{font-size:13px;line-height:1.58;color:#dedff2;margin:0 0 10px}.theory pre{margin:0;padding:13px;border-radius:16px;background:#070b15;border:1px solid rgba(155,123,255,.22);white-space:pre-wrap;font:12px/1.5 ui-monospace,Consolas,monospace;color:#d8f7f4}.resultbox{margin-top:8px;padding:10px 12px;border-radius:13px;background:rgba(101,223,144,.07);border:1px solid rgba(101,223,144,.2);font-size:11px;color:#baf1c9}.teacher-tip{display:flex;gap:10px;padding:13px;margin-top:11px}.teacher-tip img,.hint-card img{width:43px;height:43px;border-radius:14px;object-fit:cover}.teacher-tip b{font-size:12px}.teacher-tip p{font-size:10px;line-height:1.45;color:var(--muted);margin:4px 0 0}.lesson-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:12px}.practice-card{padding:16px}.practice-card h2{font-size:21px;margin:7px 0}.practice-card>p{font-size:12px;line-height:1.5;color:var(--muted)}.expected{padding:10px;border-radius:13px;background:rgba(255,255,255,.04);font-size:10px}.editor-wrap{margin-top:12px;border:1px solid rgba(155,123,255,.23);border-radius:18px;overflow:hidden;background:#070b15}.editor-top{display:flex;justify-content:space-between;padding:9px 11px;background:#10162a;font-size:9px;color:var(--muted)}textarea{width:100%;min-height:215px;border:0;outline:0;resize:vertical;padding:14px;background:#070b15;color:#e8f7f5;font:13px/1.55 ui-monospace,Consolas,monospace}.editor-tools{display:grid;grid-template-columns:1fr 1fr 1.25fr;gap:8px;margin-top:10px}.tool-btn{border:1px solid var(--border);border-radius:14px;padding:11px 7px;background:rgba(255,255,255,.05);color:#fff;font-size:10px;font-weight:850}.tool-btn.check{border:0;color:#151027;background:linear-gradient(135deg,#c9bcff,#7de6e1)}.tool-btn.full{width:100%;margin-top:10px}.console{min-height:65px;margin:10px 0 0;padding:12px;border:1px solid rgba(255,255,255,.07);border-radius:15px;background:#080c18;color:var(--muted);white-space:pre-wrap;font:10px/1.45 ui-monospace,Consolas,monospace}.console.success{color:#baf1c9;border-color:rgba(101,223,144,.25)}.console.error{color:#ffbdcc;border-color:rgba(255,129,158,.25)}.feedback{display:none;margin-top:9px;padding:11px;border-radius:14px;font-size:10px;line-height:1.45}.feedback.show{display:block}.feedback.ok{background:rgba(101,223,144,.08);color:#c8f4d4}.feedback.bad{background:rgba(255,129,158,.08);color:#ffc1cf}.hint-card{display:none;gap:10px;padding:12px;margin-top:9px}.hint-card.show{display:flex}.hint-card p{font-size:10px;color:var(--muted);line-height:1.45;margin:0}.nav{position:fixed;left:50%;bottom:max(9px,env(safe-area-inset-bottom));transform:translateX(-50%);width:min(calc(100% - 16px),504px);display:grid;grid-template-columns:repeat(5,1fr);gap:3px;padding:7px;border:1px solid var(--border);border-radius:22px;background:rgba(8,12,25,.88);backdrop-filter:blur(18px);z-index:50}.nav button{border:0;border-radius:14px;padding:7px 1px;background:transparent;color:var(--muted);font-size:8px}.nav button i{display:block;font-style:normal;font-size:16px;margin-bottom:3px}.nav button.active{background:rgba(155,123,255,.15);color:#fff}.modal{position:fixed;inset:0;display:none;align-items:flex-end;justify-content:center;padding:14px;background:rgba(3,5,12,.76);backdrop-filter:blur(7px);z-index:90}.modal.show{display:flex}.modal-card{width:min(100%,500px);padding:19px;border:1px solid var(--border);border-radius:27px;background:#121830;box-shadow:0 28px 70px rgba(0,0,0,.55)}.modal-card h2{font-size:23px;margin:0 0 8px}.modal-card p{font-size:12px;line-height:1.5;color:var(--muted)}.modal-card .btn{width:100%;margin-top:8px}.modal-char{display:block;height:190px;width:100%;object-fit:contain;object-position:center bottom;margin:-25px 0 0}.modal-card select,.modal-card textarea{width:100%;border:1px solid var(--border);border-radius:14px;background:#090d1c;color:#fff;padding:11px;margin-top:8px;outline:0}.modal-card textarea{min-height:115px}.danger-btn{background:var(--error);color:#281018}.toast{position:fixed;left:50%;bottom:94px;transform:translateX(-50%) translateY(15px);width:min(calc(100% - 30px),470px);padding:12px;border:1px solid var(--border);border-radius:16px;background:#191f3b;text-align:center;font-size:10px;opacity:0;pointer-events:none;transition:.25s;z-index:100}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}@media(max-width:390px){.hero h1{font-size:32px}.hero-copy{width:59%}.hero-img{width:73%;right:-48px}.skin-preview{height:270px}}
/* 0.4 beta2: original skin only + centered lying mascot */
.home-deco{height:170px;margin:12px 0 0;overflow:visible}
.home-deco img{left:50%;right:auto;bottom:-18px;width:min(112%,560px);height:190px;object-fit:contain;object-position:center bottom;transform:translateX(-50%);filter:drop-shadow(0 18px 30px rgba(70,50,150,.34))}
.locked-skin{opacity:.78}
.skin-placeholder{height:300px;border-radius:19px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:9px;background:radial-gradient(circle at 50% 35%,rgba(155,123,255,.20),transparent 46%),linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.015));border:1px dashed rgba(194,178,255,.24);color:var(--muted)}
.skin-placeholder span{font-size:46px;color:var(--primary);filter:drop-shadow(0 0 20px rgba(155,123,255,.35))}
.skin-placeholder b{font-size:16px;color:var(--text)}
.skin-placeholder small{font-size:10px;text-align:center;max-width:190px;line-height:1.45}
@media(max-width:390px){.home-deco img{width:116%;height:178px}.skin-placeholder{height:270px}}

/* 0.4.3 energy and notifications */
.bell-button{position:relative;width:40px;height:40px;border:1px solid var(--border);border-radius:14px;background:rgba(255,255,255,.05);color:#fff;font-size:18px;display:grid;place-items:center}
.bell-button i{position:absolute;right:5px;top:5px;width:9px;height:9px;border-radius:50%;background:#ff5f82;border:2px solid #11162d;box-shadow:0 0 10px rgba(255,95,130,.7)}
.bell-button i.hidden{display:none}.modal-title-row{display:flex;align-items:center;justify-content:space-between}.notification-count{display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:rgba(255,95,130,.14);color:#ff9db4;font-weight:900}.notification-card{display:grid;grid-template-columns:42px 1fr;gap:11px;padding:13px;margin:10px 0;border:1px solid rgba(255,255,255,.08);border-radius:18px;background:rgba(255,255,255,.035)}.notification-icon{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:rgba(155,123,255,.14);font-size:20px}.notification-card b{font-size:13px}.notification-card p{font-size:10px!important;margin:5px 0 10px!important}.notification-card .btn{padding:10px 12px;font-size:10px;width:auto;margin:0}.energy-wait{margin-top:10px;padding:12px;border-radius:15px;background:rgba(255,255,255,.04);color:var(--muted);font-size:11px;line-height:1.45}.energy-action{display:block;width:100%;margin:9px 0}.xp-badge.low{color:#ffd071;border-color:rgba(255,208,113,.32);background:rgba(255,208,113,.09)}
.theory p{margin-bottom:13px}.hint-card p{white-space:pre-line;font-size:11px;line-height:1.55}.module:not(.locked) .module-tag{background:rgba(101,225,220,.12);color:var(--accent)}