:root{font-family: -apple-system,BlinkMacSystemFont,'Segoe UI','Apple SD Gothic Neo','Malgun Gothic',sans-serif; font-synthesis:none;color:#252d45;background:#f7f8fc;--ink:#252d45;--muted:#7d8599;--line:#e8ebf2;--blue:#4f61dc;--blue-dark:#3f50c4;--faint:#f6f7fb;--mint:#39bd9e;--white:#fff}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh}button,input,textarea,select{font:inherit}button{cursor:pointer}a{text-decoration:none;color:inherit}button:disabled{opacity:.55;cursor:not-allowed}h1,h2,h3,p{margin-top:0}svg{flex-shrink:0}input,textarea,select{color:var(--ink)}input:focus,textarea:focus,select:focus{outline:3px solid #4f61dc28;border-color:#6b7af0!important}button:focus-visible,a:focus-visible{outline:3px solid #9ba4ef;outline-offset:3px}.boot{padding:45vh 0;text-align:center;color:var(--muted)}.wrap{width:min(1180px,calc(100% - 64px));margin:auto}.logo{display:inline-flex;align-items:center;gap:12px;font-weight:850;color:#243052;font-size:21px;letter-spacing:-.7px;white-space:nowrap}.brand-symbol{width:37px;height:37px;border-radius:12px;color:#fff;background:var(--blue);display:inline-flex;justify-content:center;align-items:center;position:relative;box-shadow:0 8px 14px #4f61dc30}.brand-dot{width:9px;height:9px;border-radius:50%;position:absolute;right:0;top:-2px;background:#6ce1b8;border:2px solid #fff}.btn{appearance:none;border:0;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 18px;font-size:14px;font-weight:750;transition:background .15s,transform .15s,color .15s;white-space:nowrap}.btn:active{transform:scale(.985)}.btn-primary{color:#fff;background:var(--blue);box-shadow:0 6px 14px #4f61dc1d}.btn-primary:hover{background:var(--blue-dark)}.btn-outline{border:1px solid #e1e5ef;background:#fff;color:#364260}.btn-outline:hover{background:#f6f7fd}.btn-white{color:#3544a9;background:#fff;box-shadow:0 7px 18px #282f6510}.btn-white:hover{background:#f2f4ff}.btn-ghost{background:transparent;color:var(--blue);padding:10px 14px}.btn-ghost:hover{background:#eef0fe}.btn.small{padding:10px 14px;font-size:13px;border-radius:10px}.btn.big{font-size:15px;padding:16px 23px;border-radius:13px}.btn.wide{width:100%}.btn-danger-outline{border:1px solid #f1cbd0;color:#be465b;background:#fff}.btn-danger-outline:hover{background:#fff4f5}.muted{color:var(--muted)}
/* Landing */
.landing{background:#fff}.land-head{height:95px;display:flex;align-items:center;justify-content:space-between}.land-links{display:flex;align-items:center;gap:32px;color:#666e81;font-size:14px;font-weight:650}.land-links>a:hover{color:var(--blue)}.hero{min-height:660px;padding:75px 0 114px;display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:7px;border:1px solid #dfe5fc;color:#596ed3;padding:8px 13px;background:#f8f9ff;border-radius:100px;font-size:12px;font-weight:760;margin-bottom:21px}.hero h1{font-size:clamp(37px,4.3vw,57px);letter-spacing:-3px;line-height:1.33;font-weight:870;margin:0 0 25px}.hero h1 em{font-style:normal;color:var(--blue)}.lead{font-size:17px;color:#717c90;line-height:1.85;max-width:475px;margin-bottom:27px;letter-spacing:-.4px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.hero-actions .btn-white{border:1px solid #e3e7f2;background:#fff;color:#4d5870}.hero-foot{display:flex;align-items:center;gap:3px;margin-top:21px;font-size:12px;color:#8b94a4}.hero-foot svg{color:#2da888}.hero-art{position:relative;padding:20px 20px 14px 50px;isolation:isolate}.hero-art:before{content:'';position:absolute;z-index:-1;inset:-24px -8px;background:linear-gradient(140deg,#ebedff 0%,#f3f6ff 57%,#dff8ee 100%);border-radius:42% 45% 39% 42%;transform:rotate(-7deg)}.demo-window{width:100%;max-width:440px;background:#fff;box-shadow:0 24px 75px #303d8929;border:1px solid #e9eaf5;border-radius:19px;overflow:hidden;margin:auto;transform:rotate(1deg)}.preview-head{height:54px;background:#fff;border-bottom:1px solid #f0f1f6;display:flex;align-items:center;gap:9px;padding:0 22px;color:#3c4562;font-size:13px;font-weight:800}.preview-logo{background:#e9edff;color:var(--blue);height:24px;width:24px;border-radius:7px;display:grid;place-items:center}.preview-dot{margin-left:auto;height:7px;width:7px;border-radius:50%;background:#42c9ab}.preview-body{padding:25px 25px 28px;background:#fbfcff}.tiny-label{font-size:11px;color:#97a0b3;font-weight:650}.preview-title{font-size:24px;font-weight:850;letter-spacing:-1px;margin-top:8px}.preview-subtitle{font-size:12px;color:#9aa1b2;margin-top:5px}.preview-score{margin-top:22px;background:#5265de;color:#fff;border-radius:15px;padding:18px 20px;display:flex;justify-content:space-between;align-items:center}.preview-score small,.preview-score strong{display:block}.preview-score small{font-size:11px;color:#e2e7ff}.preview-score strong{font-size:31px;margin-top:3px}.preview-score strong span{font-weight:500;color:#cbd3fd;font-size:17px}.ring{height:62px;width:62px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(#91f2dc calc(var(--progress)*1%),#8794ec 0);position:relative}.ring:before{position:absolute;content:'';inset:7px;border-radius:50%;background:#5265de}.ring span{position:relative;color:#fff;font-size:12px;font-weight:800}.preview-items{display:grid;gap:9px;margin-top:17px}.preview-items>div{display:flex;align-items:center;gap:11px;background:#fff;border:1px solid #f0f1f6;border-radius:10px;padding:13px}.preview-items i{height:9px;width:9px;border-radius:50%}.blue-bullet{background:#818df5}.mint-bullet{background:#48caaa}.amber-bullet{background:#f2be6c}.preview-items b{font-size:12px;display:block}.preview-items small{color:#a6aebc;display:block;margin-top:3px;font-size:10px}.preview-items>div span:nth-child(2){flex:1}.preview-items svg{color:#b7bfce}.chip{padding:4px 8px;font-size:10px;color:#5265de;background:#eef0ff;border-radius:7px}.float-chip{position:absolute;display:flex;align-items:center;gap:7px;background:#fff;box-shadow:0 10px 32px #28376424;border-radius:13px;padding:12px 15px;font-size:12px;font-weight:750}.float-chip.one{right:-18px;top:37px;color:#23a481;transform:rotate(-7deg)}.float-chip.two{left:0;bottom:55px;color:#6574bd;transform:rotate(4deg)}.benefit{background:#f8f9fd;padding:110px 0}.section-kicker{font-size:12px;font-weight:850;color:#5b6cdd;letter-spacing:1.7px;margin-bottom:17px}.benefit h2,.steps h2{font-size:36px;line-height:1.4;letter-spacing:-1.4px;margin-bottom:38px}.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.feature-card{background:#fff;border:1px solid #e9ecf4;border-radius:18px;padding:29px 27px;min-height:225px}.feature-icon{width:49px;height:49px;display:grid;place-items:center;border-radius:13px;margin-bottom:26px}.feature-icon.violet{background:#eef0ff;color:#6472df}.feature-icon.green{background:#e2f9f2;color:#35b99a}.feature-icon.orange{background:#fff3e3;color:#e5a15d}.feature-card h3{font-size:17px;margin-bottom:10px}.feature-card p{font-size:14px;color:#8790a0;line-height:1.8;margin:0}.steps{padding:105px 0;display:grid;grid-template-columns:.85fr 1.15fr;gap:90px}.steps>div>p{color:var(--muted)}.steps-list{display:grid;gap:25px}.steps-list>div{display:flex;gap:22px;align-items:start}.steps-list>div>span{background:#eef0ff;color:var(--blue);font-weight:850;padding:11px 12px;border-radius:11px;font-size:13px}.steps-list h3{margin-bottom:7px;font-size:17px}.steps-list p{font-size:14px;color:var(--muted);line-height:1.7;margin:0}.bottom-cta{background:linear-gradient(120deg,#4e60d9,#697be4);border-radius:24px;padding:47px 58px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:20px}.bottom-cta h2{font-size:29px;line-height:1.45;letter-spacing:-1px;margin-bottom:8px}.bottom-cta p{margin:0;color:#e0e6ff}.land-footer{min-height:155px;display:flex;align-items:center;justify-content:space-between;gap:20px}.land-footer>span .logo{font-size:18px}.land-footer .brand-symbol{height:30px;width:30px}.land-footer small{font-size:11px;color:#9aa2b4}
/* App shell */
.shell{display:flex;min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:252px;background:#fff;border-right:1px solid #e9ebf2;padding:29px 18px;display:flex;flex-direction:column;z-index:3}.side-logo{margin:0 10px 50px}.side-caption{font-size:10px;font-weight:850;letter-spacing:1.5px;color:#adb4c4;margin:0 13px 17px}.side-nav{display:grid;gap:6px}.nav-item{padding:13px 14px;display:flex;align-items:center;gap:13px;font-size:14px;font-weight:700;color:#7b8599;border-radius:11px}.nav-item:hover{background:#f6f7ff;color:var(--blue)}.nav-item.active{background:#eef0ff;color:#4659d1}.nav-count{margin-left:auto;border-radius:6px;background:#dbe0ff;color:#4055cf;min-width:21px;text-align:center;padding:3px 5px;font-size:11px}.side-bottom{margin-top:auto;padding:0 6px}.exam-card{border:1px solid #e3e7fb;background:#f7f8ff;border-radius:14px;padding:16px 15px;display:grid;gap:9px}.exam-card strong{font-size:14px}.exam-card>span{font-size:12px;color:#6474bc}.side-bottom>p{margin:18px 6px 0;font-size:11px;line-height:1.8;color:#a7aebd}.main{margin-left:252px;min-width:0;flex:1}.app-top{height:85px;border-bottom:1px solid var(--line);background:#fff;padding:0 43px;display:flex;align-items:center;justify-content:flex-end}.mobile-brand{display:none}.app-top-right{display:flex;align-items:center;gap:22px}.top-date{font-size:13px;font-weight:600;color:#98a0af}.content{width:min(1140px,calc(100% - 84px));margin:0 auto;padding:40px 0 85px}.mobile-nav{display:none}.overline{font-size:11px;color:#6775ca;font-weight:850;letter-spacing:1.2px;margin-bottom:10px}.welcome{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:27px}.welcome h1,.page-head h1{font-size:29px;letter-spacing:-1.2px;line-height:1.4;margin:0 0 8px;font-weight:850}.welcome p,.page-head p{color:#8b95a8;font-size:14px;margin:0}.secondary-cta{border:1px solid var(--line)}.stats-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px;margin-bottom:23px}.stat-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:23px 25px;min-height:186px}.stat-card.accent{background:#5063dc;color:#fff;border-color:#5063dc}.stat-icon{width:38px;height:38px;display:grid;place-items:center;border-radius:11px;color:#d7e1ff;background:#7180e5;margin-bottom:13px}.stat-icon.lilac{background:#eff0ff;color:#6b73d8}.stat-icon.mint{background:#e0f8f1;color:#32b895}.stat-label{font-size:13px;font-weight:700;color:#9099aa}.stat-card.accent .stat-label{color:#dae0ff}.stat-num{font-weight:850;font-size:33px;line-height:1.15;margin:6px 0 9px;letter-spacing:-1px}.stat-num small{font-size:14px;font-weight:600;margin-left:4px}.stat-card p{font-size:12px;color:#a2aabb;margin:0}.stat-card.accent p{color:#d6dcff}.main-columns{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(260px,1fr);gap:20px}.panel{border:1px solid var(--line);border-radius:17px;background:#fff;padding:24px}.panel-head{display:flex;justify-content:space-between;align-items:start;gap:12px;margin-bottom:20px}.panel h2{font-size:17px;letter-spacing:-.5px;margin-bottom:7px}.panel-head p{font-size:12px;color:#a2abbb;margin:0}.mini-progress{color:#4e62d6;background:#edf0ff;border-radius:7px;padding:7px 9px;font-size:11px;font-weight:800}.thin-progress{width:100%;height:6px;border-radius:9px;background:#eff1f7;overflow:hidden}.thin-progress span{display:block;height:100%;border-radius:9px;background:#6474e4;transition:width .2s}.due-list{margin:15px 0}.due-row{width:100%;appearance:none;border:0;border-bottom:1px solid #f0f1f6;background:#fff;text-align:left;display:flex;align-items:center;gap:11px;padding:17px 0;min-width:0;color:#8991a5}.due-row:hover{background:#fcfcff}.due-row:last-child{border-bottom:0}.due-icon{width:38px;height:38px;border-radius:10px;background:#f0f2ff;color:#6273d9;display:grid;place-items:center}.due-info{flex:1;min-width:0}.due-info strong{color:#35405a;font-size:13px;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.due-info small{font-size:11px;color:#a4adba;display:block;margin-top:5px}.due-label{border-radius:8px;background:#edf2ff;color:#5b70d6;font-size:11px;font-weight:750;padding:6px 9px;white-space:nowrap}.due-label.late{background:#fff3e5;color:#d79547}.more-count{text-align:center;font-size:12px;color:#8f98aa}.due-panel>.btn{margin-top:7px}.dashboard-right{display:grid;gap:20px;align-content:start}.progress-panel{text-align:center}.progress-panel h2{text-align:left}.progress-ring{height:153px;width:153px;margin:24px auto 16px;background:conic-gradient(#6273e4 calc(var(--pct)*1%),#eef0f6 0);border-radius:50%;display:grid;place-items:center;position:relative}.progress-ring:before{content:'';position:absolute;inset:14px;background:#fff;border-radius:50%}.progress-ring>div{position:relative;display:grid;gap:5px}.progress-ring strong{font-size:29px;color:#4556bf}.progress-ring small{font-size:11px;color:#a1aab7}.progress-panel>p{color:#9da6b8;font-size:12px}.panel-head.slim{align-items:center;margin-bottom:14px}.panel-head.slim h2{margin:0}.panel-head.slim a{display:flex;gap:2px;align-items:center;color:#7d89bb;font-size:12px;font-weight:700}.subject-row{padding:12px 0;border-bottom:1px solid #f0f1f6;display:flex;align-items:center;gap:10px;font-size:13px}.subject-row:last-child{border:0}.subject-indicator{display:inline-block;height:9px;width:9px;border-radius:50%}.c0{background:#6676dd}.c1{background:#48bfa4}.c2{background:#eead70}.c3{background:#d780aa}.c4{background:#7ea5ce}.subject-row span:nth-child(2){flex:1}.subject-row strong{font-weight:750;color:#828aa1}.clear-state{text-align:center;padding:45px 20px}.clear-state h3{font-size:17px;margin:13px 0 8px}.clear-state p{color:#98a1b3;font-size:13px;line-height:1.6}.clear-icon{height:58px;width:58px;margin:0 auto;display:grid;place-items:center;color:#4dbb9d;background:#e5f9f2;border-radius:17px}.small-note{display:flex;align-items:center;gap:8px;color:#8c96a9;font-size:12px;margin-top:17px}.small-note svg{color:#4abb9d}
/* Topics */
.page-head{display:flex;align-items:end;justify-content:space-between;gap:15px;margin-bottom:29px}.topics-panel{padding:0;overflow:hidden}.toolbar{padding:20px 23px;display:flex;gap:10px;border-bottom:1px solid var(--line)}.searchbox{display:flex;align-items:center;gap:9px;flex:1;background:#fafbff;border:1px solid #e9ebf3;border-radius:11px;padding:0 13px;color:#9ca7bd}.searchbox input{border:0;background:transparent;outline:0!important;width:100%;min-width:0;font-size:13px;padding:12px 0}.toolbar select{max-width:200px;padding:0 36px 0 14px;background:#fff;border:1px solid var(--line);border-radius:11px;font-size:13px}.topic-count{padding:18px 23px 2px;font-size:12px;color:#9aa3b5}.topic-count strong{color:#4f61dc}.topic-list{padding:8px 24px 15px}.topic-row{display:flex;align-items:start;gap:13px;padding:21px 0;border-bottom:1px solid #f0f1f6}.topic-row:last-child{border-bottom:0}.topic-symbol{width:37px;height:37px;display:grid;place-items:center;color:#6676dc;background:#eef0ff;border-radius:10px}.topic-main{min-width:0;flex:1}.topic-title{font-weight:800;font-size:14px;color:#35405b;overflow-wrap:anywhere}.topic-meta{display:flex;align-items:center;gap:5px;color:#a4acbc;margin-top:7px;font-size:11px}.dot-sep{margin:0 3px}.topic-note{font-size:12px;color:#8d97aa;line-height:1.65;margin:12px 0 0;white-space:pre-wrap;overflow-wrap:anywhere}.topic-actions{display:flex;align-items:center;gap:6px}.due-pill{font-size:11px;background:#f4f5f9;border-radius:7px;color:#8b94a7;font-weight:750;padding:7px 9px;white-space:nowrap}.due-pill.due-now{background:#eef0ff;color:#5d70d7}.due-pill.overdue{background:#fff1e6;color:#d39045}.icon-button{appearance:none;border:0;background:transparent;color:#9ba4b6;border-radius:8px;width:35px;height:35px;display:inline-grid;place-items:center;flex-shrink:0}.icon-button:hover{background:#f3f5ff;color:#5063dd}.danger-on-hover:hover{background:#fff1f3;color:#d14a5c}.big-empty{padding:73px 15px}
/* Calendar */
.calendar-grid-layout{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(270px,.7fr);gap:20px}.cal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.cal-header h2{margin:0;font-size:19px}.cal-controls{display:flex;align-items:center;gap:2px}.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);border-top:1px solid #eff0f6;border-left:1px solid #eff0f6}.cal-dow{text-align:center;font-size:11px;color:#929caf;font-weight:700;padding:14px 0;border-bottom:1px solid #eff0f6;border-right:1px solid #eff0f6}.cal-cell{min-height:78px;display:flex;align-items:start;flex-direction:column;gap:7px;padding:11px;border-bottom:1px solid #eff0f6;border-right:1px solid #eff0f6;color:#68748b;font-size:12px}.cal-cell.empty{background:#fcfcfe}.cal-cell.current>span{background:#596bdc;color:#fff;display:grid;place-items:center;width:26px;height:26px;border-radius:50%;margin:-5px 0 -5px -5px}.cal-cell.has-reviews small{background:#e9eeff;color:#596bd1;border-radius:6px;padding:4px;font-size:10px;white-space:nowrap}.cal-legend{display:flex;align-items:center;gap:7px;margin-top:19px;font-size:11px;color:#9ea7b7}.cal-legend i{background:#e9eeff;border:1px solid #cbd5fc;width:10px;height:10px;border-radius:3px}.cal-legend span{margin:0 5px}.upcoming-list{display:grid}.upcoming-item{display:flex;gap:11px;align-items:center;padding:14px 0;border-bottom:1px solid #f0f1f6}.upcoming-item:last-child{border-bottom:0}.date-box{background:#f2f4fc;border-radius:9px;padding:7px 9px;min-width:44px;text-align:center;color:#6371d2}.date-box strong{display:block;font-size:18px}.date-box small{font-size:10px}.upcoming-item>div:last-child{min-width:0}.upcoming-item>div:last-child strong{display:block;font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.upcoming-item>div:last-child small{display:block;color:#9ca5b5;font-size:11px;margin-top:5px}.sub-empty{font-size:13px;color:#9ba4b5;padding:25px 0}
/* Settings */
.settings-stack{display:grid;gap:18px;max-width:810px}.settings-section{padding:26px}.settings-title{display:flex;gap:13px;align-items:center;margin-bottom:24px}.settings-icon{display:grid;place-items:center;width:43px;height:43px;background:#eef0ff;color:#6172d5;border-radius:12px}.settings-title h2{margin:0 0 6px}.settings-title p{font-size:12px;color:#97a0b1;margin:0;line-height:1.5}.settings-form{display:grid;grid-template-columns:1fr 1fr auto;gap:12px;align-items:end}.settings-form label,.dialog-form label{display:grid;gap:8px;font-size:12px;font-weight:750;color:#647088}.settings-form input,.dialog-form input,.dialog-form select,.dialog-form textarea{border:1px solid #e3e7f1;border-radius:10px;padding:12px 13px;background:#fff;font-size:13px;width:100%;font-weight:500}.settings-form .btn{height:44px}.settings-subjects{margin-bottom:17px}.settings-subject{border-bottom:1px solid #f1f2f7;display:flex;align-items:center;gap:10px;padding:10px 0}.settings-subject strong{font-size:13px}.settings-subject small{font-size:11px;color:#9da7ba}.grow{flex:1}.privacy-notice{display:flex;align-items:start;gap:10px;background:#f4f6ff;color:#7482ad;border-radius:10px;padding:15px;font-size:12px;line-height:1.6;margin-bottom:17px}.privacy-notice svg{margin-top:1px}.settings-actions{display:flex;gap:10px;flex-wrap:wrap}.danger-zone{border-color:#f3dfe4}.danger-zone .settings-icon{background:#fff2f4;color:#cd5166}
/* Dialog + toast */
.modal-backdrop{position:fixed;inset:0;z-index:20;background:#18203e94;display:flex;align-items:center;justify-content:center;padding:20px;overflow:auto}.dialog{background:#fff;border-radius:20px;width:min(100%,510px);box-shadow:0 24px 80px #11182b32;padding:29px;max-height:calc(100vh - 40px);overflow:auto;position:relative}.dialog-header{margin-bottom:22px}.dialog-kicker{font-size:10px;color:#7f8ac0;font-weight:850;letter-spacing:1.4px;margin-bottom:8px}.dialog-header h2{margin:0;font-size:23px;letter-spacing:-.6px}.dialog-close{position:absolute;top:19px;right:18px}.dialog-form{display:grid;gap:18px}.dialog-form label small{color:#a4adbb;font-weight:500}.dialog-form textarea{resize:vertical;min-height:90px;line-height:1.6}.dialog-intro{font-size:13px;line-height:1.75;color:#8c96aa;margin:0}.dialog-tip{background:#f4f6ff;border-radius:10px;color:#7e89b0;display:flex;gap:10px;align-items:center;padding:12px;font-size:12px;line-height:1.6}.review-meta{display:flex;justify-content:space-between;gap:12px;color:#8b96b2;font-size:12px}.review-meta span:first-child{color:#5062d4;background:#eef0ff;padding:6px 10px;border-radius:8px;font-weight:750}.review-question{font-size:27px;line-height:1.5;text-align:center;font-weight:850;padding:37px 0 14px;letter-spacing:-1px;overflow-wrap:anywhere}.review-prompt{color:#94a0b3;text-align:center;font-size:13px;margin-bottom:22px}.review-note{text-align:center;background:#f8f9fc;border:1px dashed #e1e5f0;border-radius:11px;padding:15px;color:#9ca6b8;font-size:12px;white-space:pre-wrap;overflow-wrap:anywhere}.review-note.is-open{text-align:left;color:#4b566e;line-height:1.7;background:#f8faff}.review-note strong{display:block;margin-bottom:5px}.review-note p{margin:0}.review-note+.btn{margin-top:9px}.review-divide{text-align:center;color:#a6adba;font-size:12px;margin:28px 0 14px}.review-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.btn-rating{border-radius:11px;border:1px solid #e9ecf3;background:#fff;display:grid;place-items:center;gap:6px;padding:15px 5px;transition:background .12s}.btn-rating strong{font-size:13px}.btn-rating small{font-size:10px}.btn-rating.again{color:#d56173;background:#fff8f9;border-color:#f9e5e8}.btn-rating.hard{color:#c3914b;background:#fffaf1;border-color:#f3e8d4}.btn-rating.good{color:#2aa485;background:#f3fcf9;border-color:#d8f1e8}.btn-rating:hover{filter:brightness(.97)}.toast{position:fixed;z-index:50;bottom:25px;left:50%;transform:translateX(-50%);color:#fff;background:#303d68;box-shadow:0 12px 40px #18203c40;border-radius:12px;padding:14px 18px;font-size:13px;font-weight:700;max-width:calc(100vw - 36px)}.toast.error{background:#b94257}.fatal{min-height:100vh;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;gap:10px;padding:30px}.fatal h1{font-size:22px}.fatal p{color:#8490a7;line-height:1.7}.fatal-icon{color:#d15b67}
@media(max-width:1200px){.sidebar{width:222px}.main{margin-left:222px}.content{width:calc(100% - 50px)}.app-top{padding:0 25px}.hero{gap:15px}.hero-art{padding-left:18px}.float-chip.one{right:0}.float-chip.two{left:-10px}.stat-card{padding:18px}.panel{padding:20px}.topic-list{padding:8px 20px 15px}}
@media(max-width:960px){.hero{grid-template-columns:1fr;padding:46px 0 85px}.hero-copy{text-align:center}.hero .eyebrow{margin-left:auto;margin-right:auto}.lead{margin-left:auto;margin-right:auto}.hero-actions,.hero-foot{justify-content:center}.hero-art{width:100%;max-width:550px;margin:20px auto 0}.land-links>a{display:none}.steps{gap:30px}.main-columns{grid-template-columns:1fr}.dashboard-right{grid-template-columns:1fr 1fr}.calendar-grid-layout{grid-template-columns:1fr}.settings-form{grid-template-columns:1fr 1fr}.settings-form .btn{grid-column:span 2}}
@media(max-width:720px){.wrap{width:calc(100% - 40px)}.land-head{height:74px}.logo{font-size:19px}.hero{padding-top:30px}.hero h1{font-size:38px;letter-spacing:-2px}.lead{font-size:14px}.hero-art{padding:15px}.demo-window{max-width:420px}.float-chip.one{right:-8px}.float-chip.two{left:-8px}.benefit{padding:67px 0}.benefit h2,.steps h2{font-size:29px}.features-grid{grid-template-columns:1fr}.feature-card{min-height:0}.steps{grid-template-columns:1fr;padding:70px 0}.bottom-cta{padding:30px;flex-direction:column;align-items:start}.bottom-cta h2{font-size:25px}.land-footer{flex-direction:column;justify-content:center;align-items:start;gap:14px;padding:35px 0}.sidebar{display:none}.main{margin:0;padding-bottom:71px}.app-top{height:69px;padding:0 20px;justify-content:space-between}.mobile-brand{display:flex;align-items:center;gap:8px;font-size:17px;font-weight:850}.mobile-brand .brand-symbol{width:30px;height:30px;border-radius:10px}.mobile-brand .brand-symbol svg{width:20px}.top-date{display:none}.app-top-right .btn{padding:9px 11px;font-size:12px}.content{width:calc(100% - 34px);padding:30px 0 30px}.mobile-nav{display:flex;position:fixed;z-index:5;inset:auto 0 0;background:#fff;border-top:1px solid #e7eaf2;padding:9px 7px max(9px,env(safe-area-inset-bottom));justify-content:space-around}.mobile-nav a{display:grid;place-items:center;gap:4px;color:#a2adbd;min-width:65px;font-size:10px;font-weight:700}.mobile-nav a.active{color:var(--blue)}.welcome h1,.page-head h1{font-size:25px}.secondary-cta{display:none}.stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.stat-card{padding:17px;min-height:158px}.stat-card:first-child{grid-column:span 2;min-height:145px}.stat-card.accent .stat-icon{margin-bottom:7px}.stat-num{font-size:28px}.main-columns{gap:13px}.dashboard-right{grid-template-columns:1fr}.panel{padding:19px}.progress-panel{display:none}.page-head{align-items:start}.page-head>.btn{padding:10px 11px;font-size:12px;margin-top:20px}.toolbar{padding:13px;gap:8px}.toolbar select{max-width:130px;padding-left:6px;font-size:11px}.topic-list{padding:0 13px}.topic-row{gap:9px}.topic-symbol{width:28px;height:28px}.topic-actions{gap:2px;flex-wrap:wrap;justify-content:flex-end;max-width:102px}.due-pill{order:-1;width:100%;text-align:center}.topic-meta{flex-wrap:wrap}.cal-cell{min-height:56px;padding:7px 5px}.cal-cell.has-reviews small{font-size:9px;padding:3px}.settings-form{grid-template-columns:1fr}.settings-form .btn{grid-column:auto}.settings-actions .btn{width:100%}.dialog{padding:23px}.review-question{font-size:24px}.modal-backdrop{align-items:center}}
@media(max-width:370px){.hero h1{font-size:32px}.hero-actions{display:grid}.hero-actions .btn{width:100%}.hero-foot{font-size:10px;flex-wrap:wrap}.page-head{display:block}.page-head>.btn{margin-top:18px}.content{width:calc(100% - 24px)}.cal-cell{min-height:50px}.review-buttons{gap:4px}.btn-rating{padding:12px 3px}}
/* Mobile reading and touch targets */
.topic-title,.subject-row,.settings-subject strong,.exam-card strong{overflow-wrap:anywhere;min-width:0}
:root{--muted:#626d82}
.review-prompt,.dialog-intro,.settings-title p,.topic-meta{color:#626d82}
@media(max-width:720px){
 input,textarea,select,.dialog-form input,.dialog-form textarea,.dialog-form select,.settings-form input{font-size:16px}
 .icon-button{min-width:44px;min-height:44px}
 .mobile-nav a{min-height:48px;color:#626d82}
 .main{padding-bottom:calc(80px + env(safe-area-inset-bottom))}
 .toast{bottom:calc(85px + env(safe-area-inset-bottom))}
 .dialog{max-height:calc(100dvh - 24px);padding:22px 18px}
 .modal-backdrop{padding:12px}
 .toolbar{flex-wrap:wrap}.searchbox{min-width:0;width:100%}
 .settings-subject{flex-wrap:wrap}.settings-subject strong{max-width:65%}
 .due-info{min-width:0}.due-info strong{overflow-wrap:anywhere;white-space:normal}
 .cal-grid{grid-template-columns:repeat(7,minmax(0,1fr))}
 .cal-cell{min-width:0}.review-meta{flex-wrap:wrap}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}
/* V1 release touch and narrow layout safeguards */
.btn,.icon-button,.btn-rating{min-height:44px;min-width:44px}
.topic-row,.topic-main,.settings-form>*{min-width:0}
.topic-title,.topic-note,.subject-row>span,.settings-subject strong{overflow-wrap:anywhere}
.subject-row{flex-wrap:wrap;height:auto;min-height:44px}.subject-row>span:nth-child(2){flex:1;min-width:0}
@media(max-width:430px){.land-head .logo{gap:6px;font-size:17px}.land-links .btn{font-size:11px;padding:8px}.cal-header{gap:5px;flex-wrap:wrap}.cal-header h2{font-size:18px}.due-row{gap:6px}.due-label{font-size:10px}.topic-row{flex-wrap:wrap}.topic-actions{max-width:none;margin-left:auto}.topic-main{flex:1;min-width:140px}.hero-foot{flex-wrap:wrap}.dialog-header h2{padding-right:28px;font-size:21px}.toolbar select{max-width:100%;min-height:44px}.settings-subject small{white-space:normal}.app-top{padding:0 12px}.mobile-brand{font-size:16px}.cal-controls{gap:2px}}