:root{font-family:"Malgun Gothic","Apple SD Gothic Neo",sans-serif;color:#1a2a4e;background:#f8fafd;font-synthesis:none;line-height:1.6;--blue:#3566da;--muted:#62718a;--line:#dfe6f1}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,.button{min-height:46px;padding:10px 18px;border:1px solid var(--line);border-radius:10px;background:white;color:#23395e;cursor:pointer;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none}button:hover,.button:hover{border-color:var(--blue);background:#eef4ff}button:disabled{opacity:.5;cursor:wait}button.primary,.primary{background:var(--blue);color:white;border-color:var(--blue)}button.danger{color:#ac3441}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #86aaff;outline-offset:3px}a{color:var(--blue)}h1,h2,h3,p{margin-top:0}h1{font-size:32px;letter-spacing:-1px;line-height:1.3}h2{font-size:23px}h3{font-size:19px}p{color:var(--muted)}small,.muted{color:var(--muted);font-size:14px}.shell{display:flex;min-height:100vh}.sidebar{width:224px;flex-shrink:0;border-right:1px solid var(--line);background:#fff;padding:32px 20px;position:fixed;inset:0 auto 0 0;display:flex;flex-direction:column}.brand{font-size:24px;font-weight:800;letter-spacing:-1px;margin-bottom:36px}.brand span{color:var(--blue)}nav{display:grid;gap:8px}nav button{justify-content:flex-start;border:0;background:transparent;font-size:16px;padding:14px}nav button.active{background:#ecf2ff;color:var(--blue)}.sidebar footer{margin-top:auto;padding-top:24px}.content{margin-left:224px;padding:42px;max-width:1400px;width:calc(100% - 224px)}.topline,.row{display:flex;align-items:center;justify-content:space-between;gap:16px}.topline{margin-bottom:32px}.row.wrap{flex-wrap:wrap}.actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.badge{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.4px;border-radius:6px;background:#edf3ff;color:var(--blue);padding:4px 9px}.badge.amber{background:#fff2d9;color:#946017}.hero{background:var(--blue);color:white;padding:38px;border-radius:22px;margin-bottom:24px;display:flex;justify-content:space-between;align-items:center;gap:24px}.hero h2{font-size:30px;margin-bottom:12px}.hero p{color:#e4ecff}.hero button{color:var(--blue);padding:14px 24px}.hero-symbol{font-size:64px;font-family:Georgia,serif;opacity:.6}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:36px}.stat{padding:22px;background:#fff;border:1px solid var(--line);border-radius:16px}.stat strong{font-size:34px;display:block}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:18px}.card{padding:24px;background:white;border:1px solid var(--line);border-radius:16px;margin-bottom:18px;min-width:0}.grid .card{margin:0}.card h3{margin:14px 0}.empty{text-align:center;padding:44px 20px;background:#fff;border:1px dashed #bac9de;border-radius:16px}.toolbar{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:24px}.toolbar input{flex:1;min-width:180px}input,select,textarea{display:block;width:100%;border:1px solid #bdcadc;padding:12px;border-radius:9px;background:#fff;color:#172744;min-height:46px}textarea{min-height:160px;resize:vertical}label{display:block;font-weight:700;margin-bottom:16px}label input,label select,label textarea{margin-top:6px}label small{display:block;font-weight:400}.toolbar select{width:auto}pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#111e35;color:#dce9ff;padding:24px;border-radius:12px;font-size:15px;line-height:1.8;tab-size:2}code{font-family:Consolas,monospace;overflow-wrap:anywhere}.login{max-width:1250px;margin:auto;padding:44px 28px}.login-header{margin-bottom:30px}.login-grid{display:grid;grid-template-columns:minmax(280px, .85fr) minmax(0,1.35fr);gap:28px}.code-panel{min-width:0}.code-panel pre{margin-top:0}.login-result{padding:18px;border:1px solid #9bb9ec;border-radius:12px;background:#f0f6ff;margin-top:20px}.login-result.error{background:#fff4f4;border-color:#e9b8be}.login-result pre{font-size:14px;margin-bottom:10px}.flash-wrap{max-width:760px;margin:0 auto}.flash{width:100%;display:block;min-height:320px;border-radius:22px;border-color:#cddbf3;padding:40px 24px;text-align:center;box-shadow:0 14px 40px #254e9220}.flash .term{font-size:clamp(30px,6vw,52px);overflow-wrap:anywhere;font-weight:800;display:block;margin:30px 0}.flash .meaning{display:block;font-size:24px;margin:20px 0}.flash .example{font-size:18px;display:block;font-weight:400}.rating{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px}.rating button{display:block}.rating small{display:block}.word-row{background:#fff;border:1px solid var(--line);padding:22px;border-radius:14px;display:flex;justify-content:space-between;gap:20px;margin-bottom:12px}.word-row h3{margin:0}.word-row p{margin:6px 0}.word-row .term{font-size:22px}.word-row .actions{align-content:center;flex-shrink:0}.word-detail{min-width:0;overflow-wrap:anywhere}details{margin:16px 0}summary{cursor:pointer;font-weight:700;padding:10px 0}.progress{width:100%;height:8px;margin:16px 0 28px;accent-color:var(--blue)}#notice{position:fixed;top:16px;left:50%;transform:translateX(-50%);z-index:100;background:#172744;color:#fff;border-radius:12px;max-width:calc(100% - 24px);box-shadow:0 4px 20px #0002;padding:12px 20px;display:none}#notice.visible{display:block}#notice.error{background:#982f3d}dialog{width:min(620px,calc(100% - 24px));max-height:90vh;border:1px solid var(--line);border-radius:18px;padding:28px;color:#1a2a4e}dialog::backdrop{background:#17274488}.two{display:grid;grid-template-columns:1fr 1fr;gap:14px}.check-list{max-height:150px;overflow:auto;padding:10px;border:1px solid var(--line);border-radius:8px}.check-list label{font-size:14px;font-weight:400;display:flex;align-items:center;gap:10px;margin:4px}.check-list input{width:18px;min-height:18px;margin:0}.inline-error{color:#ac3441}.mobile-brand{display:none}.code-lines{counter-reset:line}.code-lines span{display:block}.code-lines span:before{counter-increment:line;content:counter(line);display:inline-block;width:2.5em;color:#7d91b2;user-select:none}.integration{border-left:4px solid var(--blue)}@media(max-width:760px){h1{font-size:27px}.sidebar{width:100%;height:auto;top:auto;bottom:0;padding:6px 4px max(6px,env(safe-area-inset-bottom));z-index:50;border-top:1px solid var(--line)}.sidebar .brand,.sidebar footer{display:none}nav{grid-template-columns:repeat(5,1fr);gap:0}nav button{padding:9px 3px;font-size:12px;justify-content:center;min-height:50px;white-space:nowrap}.content{margin:0;padding:24px 16px 110px;width:100%}.mobile-brand{display:block;font-size:20px;font-weight:800;margin-bottom:22px}.topline{align-items:flex-start;gap:10px}.topline .actions{justify-content:flex-end}.hero{padding:26px;display:block}.hero h2{font-size:25px}.hero-symbol{display:none}.stats{gap:8px}.stat{padding:15px 10px}.stat strong{font-size:29px}.stat small{font-size:12px}.login{padding:28px 16px}.login-grid{grid-template-columns:1fr}.code-panel pre{font-size:13px;padding:16px}.word-row{flex-direction:column}.word-row .actions{justify-content:flex-end}.two{grid-template-columns:1fr}.card{padding:20px}.rating{gap:6px}.rating button{padding:12px 4px}.rating small{font-size:12px}.flash{min-height:300px}.login-header h1{font-size:30px}.toolbar select{flex:1}.hero button{width:100%}}@media(prefers-reduced-motion:no-preference){button{transition:background .15s,border-color .15s}.card{animation:appear .2s ease-out}@keyframes appear{from{opacity:.5;transform:translateY(4px)}to{opacity:1;transform:none}}}

/* Compact lesson and mobile study layouts. */
.lesson-summary{margin-top:12px}.lesson-grid h2{margin-bottom:8px}.lesson-grid .passage-title{font-size:22px}.lesson-grid .actions{margin-top:20px}#import-result li{margin:8px 0;overflow-wrap:anywhere}
@media(max-width:760px){
 .v5.study-mode .content{padding:12px 16px calc(82px + env(safe-area-inset-bottom))}
 .study-mode .account-links,.v5.study-mode .mobile-brand,.study-mode .topline .local-pill{display:none}
 .v5.study-mode .topline{margin-bottom:8px;gap:0}
 .v5.study-mode h1{font-size:18px;margin:0}
 .study-mode .flash-wrap{height:calc(100dvh - 142px - env(safe-area-inset-bottom));min-height:260px;display:flex;flex-direction:column}
 .study-mode .study-progress{font-size:13px;flex-shrink:0}
 .study-mode .progress{margin:6px 0 10px;height:4px;flex-shrink:0}
 .study-mode .flash{min-height:0;flex:1;overflow-y:auto;overscroll-behavior:contain;padding:18px 16px;border-radius:16px;box-shadow:none}
 .study-mode .flash .term{font-size:clamp(26px,7vw,36px);margin:14px 0}
 .study-mode .flash .meaning{font-size:21px;margin:12px 0}
 .study-mode .flash .example{font-size:16px}
 .study-mode .rating{margin-top:12px;flex-shrink:0;gap:8px}
 .study-mode .rating button{min-height:62px;padding:8px 4px}
 .study-mode .study-source{margin:8px 0 0;font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex-shrink:0}
}
/* Flat secondary actions integrate with their surrounding surface. */
button,.button{background:transparent;border-color:transparent;border-radius:6px;font-weight:500;box-shadow:none}
button:hover,.button:hover{background:#edf2f8;border-color:transparent}
button:active:not(:disabled),.button:active{background:#e1e9f4}
button.primary,.button.primary{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:700}
button.primary:hover,.button.primary:hover{background:#2c58c1;border-color:#2c58c1}
button.primary:active:not(:disabled),.button.primary:active{background:#244ba8;border-color:#244ba8}
button.danger:hover{background:#fbeef0;color:#922b38}
.flash{background:#fff}
.rating button:not(.primary){background:#edf2f8;border-color:transparent}
.rating button:not(.primary):hover{background:#e1e9f4}
/* Keep the review interval readable on the blue rating button. */
.rating button.primary small { color: #fff; }

/* Superdesign dashboard v5: locally hosted AtoZ, study hero and passage cards. */
@font-face{font-family:AtoZ;src:url('/fonts/atoz-regular.ttf') format('truetype');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:AtoZ;src:url('/fonts/atoz-medium.ttf') format('truetype');font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:AtoZ;src:url('/fonts/atoz-bold.ttf') format('truetype');font-weight:700;font-style:normal;font-display:swap}
:root{font-family:AtoZ,"Malgun Gothic",sans-serif}body{word-break:keep-all;overflow-wrap:anywhere}.ui-icon{width:20px;height:20px;flex-shrink:0;vertical-align:middle}.v5 .sidebar{padding:24px;width:224px}.v5 .brand{display:flex;align-items:center;gap:8px;font-size:23px;font-weight:700;letter-spacing:-1px;margin:0 0 32px}.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:8px;background:#3566da;color:#fff!important;flex-shrink:0}.brand-mark .ui-icon{width:20px;height:20px}.v5 nav{gap:4px}.v5 nav button{font-size:16px;font-weight:400;padding:10px 12px;min-height:44px;gap:12px}.v5 nav button.active{font-weight:500}.mobile-label{display:none}.v5 .content{max-width:none;padding:40px max(40px,calc((100vw - 1324px)/2));min-width:0}.v5 .topline{margin-bottom:40px;align-items:flex-end}.v5 h1{font-size:30px;font-weight:700;letter-spacing:-.7px;margin-bottom:8px}.v5 .topline p{margin:0;font-size:16px}.local-pill{font-size:12px;white-space:nowrap;background:#fff;border:1px solid #dfe6f1;border-radius:24px;padding:3px 12px}.local-status{padding:16px;border-radius:12px;background:#111c30;color:#fff}.local-status small{font-size:11px;color:#a9b9d1;display:flex;align-items:center;justify-content:space-between}.status-dot{display:block;width:7px;height:7px;border-radius:50%;background:#20bf99}.local-status p{font-size:12px;color:#e4edff;margin:8px 0}.local-status>span{font-size:10px;color:#9baac1}.v5 .hero{padding:48px;border-radius:24px;margin:0 0 32px;box-shadow:0 10px 20px #22499020;position:relative;gap:28px;background:linear-gradient(115deg,#3566da,#3e6ddd)}.hero-copy{min-width:0;flex:1}.v5 .hero h2{font-size:36px;font-weight:700;line-height:1.3;letter-spacing:-1px;margin-bottom:16px}.v5 .hero p{font-size:16px;line-height:1.65;margin-bottom:32px}.v5 .hero button{min-height:60px;border:0;border-radius:16px;padding:16px 28px;font-size:18px;font-weight:700;color:#3566da;background:#fff}.hero-metrics{display:flex;align-items:center;gap:24px;flex-shrink:0}.hero-metrics>div{text-align:center;min-width:64px;position:relative}.hero-metrics>div+div:before{content:'';position:absolute;left:-12px;top:12px;height:44px;border-left:1px solid #ffffff30}.hero-metrics strong{display:block;font-size:46px;line-height:1.2;font-weight:700;letter-spacing:-1px}.hero-metrics small{display:block;font-size:12px;font-weight:500;color:#e0eaff;margin-top:4px}.passage-heading{margin-bottom:20px}.passage-heading h2{font-size:22px;margin:0}.passage-heading button{background:transparent;border:0;color:#3566da;font-size:14px;padding:8px}.v5 .passage-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.v5 .passage-card{padding:20px;border-radius:16px;border:1px solid #e9eef6;box-shadow:0 2px 3px #243c6310}.passage-card .badge{font-size:11px;letter-spacing:0;padding:4px 9px}.passage-card .ui-icon{color:#9bafc9}.passage-card h3{margin:14px 0 4px;font-size:18px}.passage-title{padding:0;min-height:44px;text-align:left;border:0;background:none;font-size:18px;line-height:1.45;font-weight:700;justify-content:flex-start}.passage-title:hover{background:none;color:#3566da}.passage-card p{font-size:14px;margin:0;color:#6c7c94}.passage-card p span{padding:0 4px}.difficult-row{margin-top:32px;padding:24px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;border-top:1px solid #e2e9f3}.difficult-row h3{font-size:18px;margin:0 0 4px}.difficult-row p{font-size:14px;margin:0}.rating button.primary small{color:#fff}
@media(min-width:761px) and (max-width:1200px){.v5 .hero{padding:32px;flex-direction:column;align-items:flex-start}.v5 .hero h2{font-size:32px}.hero-metrics{width:100%;justify-content:space-around}.v5 .passage-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.v5 .sidebar{width:100%;padding:6px 8px max(6px,env(safe-area-inset-bottom))}.v5 .sidebar .brand{display:none}.v5 nav{gap:0}.v5 nav button{flex-direction:column;gap:3px;font-size:11px;padding:6px 2px;min-height:54px}.v5 nav .ui-icon{width:23px;height:23px}.desktop-label{display:none}.mobile-label{display:block}.v5 .content{width:100%;padding:24px 24px 100px}.v5 .mobile-brand{display:flex;align-items:center;gap:8px;font-size:21px}.v5 .topline{display:flex;flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px}.v5 h1{font-size:25px}.v5 .topline p{font-size:16px}.local-pill{width:100%}.v5 .hero{padding:32px;display:flex;flex-direction:column;align-items:stretch;gap:30px}.v5 .hero h2{font-size:30px;line-height:1.3}.v5 .hero p{font-size:16px;margin-bottom:30px}.v5 .hero button{font-size:17px;padding:14px 16px;width:auto}.hero-metrics{width:100%;gap:16px;justify-content:space-between}.hero-metrics>div{min-width:0;flex:1}.hero-metrics strong{font-size:36px}.hero-metrics small{font-size:11px}.hero-metrics>div+div:before{left:-8px}.v5 .passage-grid{grid-template-columns:1fr}.passage-heading h2{font-size:21px}.difficult-row{flex-direction:column;align-items:flex-start}.v5 .rating small{font-size:13px}}
@media(max-width:360px){.v5 .content{padding-left:16px;padding-right:16px}.v5 .hero{padding:24px}.hero-metrics strong{font-size:30px}}

/* Compact account actions at the top right. */
.account-links{display:flex;justify-content:flex-end;align-items:center;gap:18px;margin:-12px 0 20px}.account-links button{min-height:32px;padding:4px 0;border:0;border-radius:0;background:transparent;color:#62718a;font-size:13px;font-weight:400;text-decoration:underline;text-underline-offset:4px}.account-links button:hover{color:#3566da;background:transparent}.account-links button:focus-visible{outline:2px solid #3566da;outline-offset:4px}@media(max-width:760px){.account-links{margin:-8px 0 12px;gap:16px}}

/* Account and administrator views use the existing AtoZ design. */
.auth-page{max-width:560px}.auth-page .brand{margin-bottom:24px}.text-link{border:0;background:none;padding:8px 0;text-decoration:underline;text-underline-offset:4px;color:var(--blue)}.member-row{display:flex;justify-content:space-between;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}.member-row p{margin:6px 0 0;font-size:13px}.audit-row{padding:12px 0;border-bottom:1px solid var(--line)}.audit-row p{margin:4px 0 0;overflow-wrap:anywhere}#secret-value{display:block;user-select:all;padding:16px;background:#edf3ff;border-radius:8px}.v5 nav{grid-template-columns:1fr}@media(max-width:760px){.member-row{flex-direction:column}.member-row .actions button{font-size:13px;padding:8px 12px}.v5 nav{grid-template-columns:repeat(auto-fit,minmax(0,1fr))}}