:root{font-family:Inter,system-ui,-apple-system,'Segoe UI',Arial,sans-serif;color:#17233d;background:#f3f6fb;line-height:1.5;color-scheme:light}
*{box-sizing:border-box}body{margin:0}a{color:#163c93;text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{color:#08154c;line-height:1.2;margin:0 0 12px}h1{font-size:1.65rem}h2{font-size:1.18rem}h3{font-size:1rem}p{margin:0 0 12px}small,.muted{color:#667591}code{font-size:.86em}button,input,select{font:inherit}button,.btn{cursor:pointer;background:#0a1d62;color:#fff;border:1px solid #0a1d62;border-radius:9px;padding:10px 15px;font-weight:650;display:inline-block}button:hover,.btn:hover{background:#17358c;color:#fff;text-decoration:none}.btn.outline,button.outline{background:#fff;color:#0a1d62}.btn.danger,button.danger{background:#a92a35;border-color:#a92a35}.btn.soft{background:#f1f4fe;color:#08154c;border-color:#cbd4ef}.btn.sm,button.sm{padding:6px 10px;font-size:.86rem}input,select{padding:10px 11px;border:1px solid #bac6d9;border-radius:8px;background:#fff;color:#162237;min-width:0;width:100%}input:focus,select:focus{outline:2px solid #7896db;outline-offset:1px}label{display:block;font-weight:650;font-size:.9rem;margin:8px 0 5px}.required{color:#af3135}.header{background:#fff;border-bottom:1px solid #dbe2f0}.header-inner{max-width:1180px;margin:auto;display:flex;align-items:center;gap:15px;padding:16px 20px}.brand-logo{width:70px;height:70px;object-fit:contain}.brand-name{font-size:1rem;font-weight:800;letter-spacing:.015em;color:#08154c}.dept{font-size:.98rem;font-weight:700;color:#102768}.subtitle{font-size:.89rem;color:#667591}.nav{background:#0a1d62;color:white}.nav-inner{max-width:1180px;margin:auto;display:flex;align-items:center;gap:10px;padding:9px 20px;flex-wrap:wrap}.nav a,.nav button{color:white;background:transparent;border:0;padding:6px 10px;font-weight:550;font-size:.92rem}.nav a:hover,.nav button:hover{background:#ffffff22;border-radius:6px;text-decoration:none}.nav form{margin:0}main{max-width:1180px;margin:22px auto 45px;padding:0 18px;min-height:55vh}.panel,.card{background:#fff;border:1px solid #dce4f0;border-radius:13px;padding:23px;box-shadow:0 2px 13px #14264908}.authbox{max-width:500px;margin:40px auto}.authbox p{color:#60708d}.stack>*+*{margin-top:14px}.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.between{justify-content:space-between}.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.metric{background:#f4f6fe;border-radius:10px;padding:15px}.metric strong{font-size:1.6rem;color:#091c64}.pill{background:#eef2fe;color:#20366d;border-radius:40px;font-size:.76rem;font-weight:750;padding:4px 10px;display:inline-block}.pill.approved{background:#e2f6e9;color:#14603a}.pill.pending{background:#fff4d5;color:#705416}.pill.denied,.pill.archived{background:#fee7e7;color:#8f2130}.alert{padding:13px 15px;border-radius:10px;margin:0 0 18px;background:#fff3d5;color:#6d4d11;border:1px solid #f2d8a1}.alert.success{background:#e8f7ed;border-color:#c8e7d0;color:#145b38}.alert.error{background:#fff0f0;border-color:#edb8bb;color:#902630}.tablewrap{overflow-x:auto}.table{border-collapse:collapse;width:100%;font-size:.9rem}.table th,.table td{padding:12px;border-bottom:1px solid #e6ebf4;text-align:left;vertical-align:middle}.table th{background:#f7f9fd;color:#52617d}table a{font-weight:650}.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.portfolio-form{border:1px solid #dfe7f1;background:#f9faff;padding:14px;margin:12px 0;border-radius:10px}.portfolio-layout{display:grid;grid-template-columns:minmax(0,1.75fr) minmax(270px,1fr);gap:18px}.right-list{display:grid;gap:9px}.right-list a{border:1px solid #dce4f0;background:#fff;padding:13px 15px;border-radius:10px;display:block}.right-list a.active{border-color:#0a1d62;background:#edf1fc}.help{font-size:.83rem;color:#697891;margin-top:5px}.spacer{flex:1}footer{max-width:1180px;margin:0 auto;padding:20px;color:#667591;font-size:.81rem;border-top:1px solid #dce4f0;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}.inline-form{display:inline}.buttons{display:flex;gap:6px;flex-wrap:wrap}.notice{border:1px dashed #b7c7da;border-radius:10px;padding:15px;color:#596985;background:#f8faff}.arabic{direction:auto;unicode-bidi:plaintext}.topspace{margin-top:20px}
@media(max-width:760px){.header-inner{padding:12px}.brand-logo{width:56px;height:56px}.brand-name{font-size:.85rem}.dept{font-size:.83rem}.subtitle{font-size:.75rem}.grid2,.grid3,.form-row,.portfolio-layout{grid-template-columns:1fr}.panel,.card{padding:15px}main{padding:0 12px}.nav-inner{gap:4px}.nav a,.nav button{font-size:.8rem}.table{font-size:.82rem}}

.widebox{max-width:740px}

textarea{font:inherit;border:1px solid #bac6d9;border-radius:8px;background:#fff;color:#162237;padding:10px 11px;width:100%;resize:vertical}textarea:focus{outline:2px solid #7896db;outline-offset:1px} .quiz-question{margin-bottom:14px} .answers{padding-left:28px;margin:12px 0 16px} .answers li{padding:5px 10px;margin:4px 0;border-radius:6px} .answers .correct-option{background:#e8f7ed;color:#145b38} .answers strong{font-size:.8rem} .stack>*+*{margin-top:14px} .btn.outline:hover,button.outline:hover{background:#eef2fd;color:#08154c} .btn.soft:hover{background:#e0e9fb;color:#08154c}
.hidden-trap{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}

/* Keep teacher action controls inside narrow table cells. */
button.promote-mini{font-size:.70rem!important;line-height:1.1;padding:3px 6px!important;margin-top:4px;max-width:100%;white-space:nowrap;} .table td .inline-form{display:inline-flex;vertical-align:middle;} .table td{overflow-wrap:anywhere;}


/* v0.4.1 mobile experience: small screens, touch controls, and iOS safe areas. */
.mobile-nav-bar{display:none}
.mobile-menu-toggle{display:none}
:focus-visible{outline:3px solid #4f7ed8;outline-offset:2px}
button,.btn,a,input,select,textarea{-webkit-tap-highlight-color:transparent}
.tablewrap{-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain}
.tablewrap:focus-visible{outline:2px solid #4f7ed8;outline-offset:2px}
.table{min-width:580px}
.table td{max-width:360px}
.arabic,textarea,p,td,th{overflow-wrap:anywhere}
.nav a[aria-current="page"]{background:#ffffff25;border-radius:7px}
@media(max-width:760px){
  body{overflow-x:hidden}
  .header-inner{align-items:center;gap:10px;padding:10px 14px}
  .brand-logo{width:49px;height:49px;flex-shrink:0}
  .brand-name{font-size:.78rem;line-height:1.2}
  .dept{font-size:.83rem}
  .subtitle{font-size:.69rem;line-height:1.35}
  main{margin:14px auto 32px;padding:0 12px;min-width:0}
  .panel,.card{padding:16px;border-radius:12px}
  .authbox{margin:18px auto;max-width:100%}
  .grid2,.grid3,.form-row,.portfolio-layout{grid-template-columns:minmax(0,1fr)}
  .row{gap:9px}
  h1{font-size:1.38rem}h2{font-size:1.1rem}
  input,select,textarea{font-size:16px;min-height:44px}
  button,.btn{min-height:44px;padding:10px 13px}
  .btn.sm,button.sm{min-height:38px;padding:8px 11px}
  button.promote-mini{min-height:30px;padding:5px 8px!important;font-size:.72rem!important}
  .buttons{gap:8px;align-items:center}
  .buttons>*{max-width:100%}
  .mobile-nav-bar{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;color:white;font-weight:700}
  .mobile-menu-toggle{display:inline-flex;align-items:center;gap:7px;padding:8px 12px;min-height:42px;background:#fff!important;color:#08154c!important;border:1px solid #ccd6ed;font-size:.89rem;border-radius:9px}
  .nav-inner{padding:3px 12px 12px;gap:3px;flex-direction:column;align-items:stretch}
  .nav-inner .spacer{display:none}
  .nav-inner>a,.nav-inner>span,.nav-inner>form{width:100%;display:block}
  .nav-inner>a,.nav-inner>span{padding:11px 12px;font-size:.95rem;border-bottom:1px solid #ffffff19}
  .nav-inner>form button{width:100%;text-align:left;padding:11px 12px;font-size:.95rem}
  .mobile-nav-ready .nav-inner:not(.nav-open){display:none}
  .tablewrap{margin:0 -6px;padding:0 6px 8px;overflow-x:auto;max-width:calc(100% + 12px)}
  .table{font-size:.86rem}
  .table th,.table td{padding:11px 12px;min-width:92px}
  .table th:first-child,.table td:first-child{min-width:150px}
  .table td form{max-width:100%}
  .portfolio-layout aside{min-width:0}
  .metric{padding:13px}
  footer{padding:15px 12px max(18px,env(safe-area-inset-bottom));font-size:.76rem}
}
@media(min-width:761px) and (max-width:1024px){
 .header-inner{padding:12px 16px}
 .nav-inner{padding:9px 12px;gap:3px}
 .nav a,.nav button{font-size:.85rem}
 .panel,.card{padding:19px}
 .portfolio-layout{grid-template-columns:minmax(0,1.5fr) minmax(220px,1fr)}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* v0.5 mobile cards, calm spacing, bilingual RTL, and notifications. */
.language-picker{margin-inline-start:auto;min-width:126px;flex-shrink:0}
.language-picker label{font-size:.76rem;color:#364978;margin:0 0 3px}
.language-picker select{width:100%;font-size:.92rem;min-height:38px;padding:6px 8px}
.teacher-mobile-list{display:none}
.announcement-list{display:grid;gap:12px}
.announcement-card p{white-space:pre-wrap;line-height:1.6;margin:10px 0}
.announcement-card strong{font-size:1.02rem}
[dir=rtl] .table th,[dir=rtl] .table td{text-align:right}
[dir=rtl] .answers{padding-left:0;padding-right:28px}
[dir=rtl] .nav-inner>form button{text-align:right}
[translate=no],.user-content,.arabic{direction:auto;unicode-bidi:plaintext}
[dir=rtl] input[dir=auto],[dir=rtl] textarea[dir=auto]{text-align:start}
[dir=rtl] .language-picker{margin-inline-start:auto}
button:disabled{opacity:.55;cursor:not-allowed}
@media(max-width:760px){
 .header-inner{align-items:flex-start;flex-wrap:wrap}
 .header-inner>.language-picker{width:100%;margin-inline-start:0;display:flex;justify-content:flex-end;align-items:center;gap:8px}
 .language-picker label{margin:0}
 .language-picker select{width:auto;min-width:132px}
 .teachers-desktop-table{display:none}
 .teacher-mobile-list{display:grid;gap:12px;margin-top:16px}
 .teacher-mobile-card{padding:16px;overflow:hidden}
 .teacher-mobile-card p{margin:7px 0}
 .teacher-mobile-card .buttons{margin-top:10px}
 .teacher-mobile-card button.promote-mini{min-height:38px!important;font-size:.83rem!important;padding:8px 10px!important}
 .teacher-mobile-card .user-content{font-size:1rem;max-width:100%;overflow-wrap:anywhere}
 .announcement-list{gap:10px}
 .announcement-card{padding:14px}
}

/* v0.5.1: public mobile PWA installation guide */
.install-hero{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:22px;align-items:center}
.install-hero h1{margin:4px 0 12px}
.install-kicker{font-size:.85rem;font-weight:700;color:#35579b}
.install-qr{text-align:center;overflow-wrap:anywhere}
.install-qr img{background:white;padding:10px;border:1px solid #dbe3ef;border-radius:14px;max-width:100%;height:auto}
.install-qr p{font-weight:700;margin:7px 0 2px}
.install-qr small{font-size:.68rem;color:#54657d}
.install-steps li{margin:0 0 13px;line-height:1.55}
.install-steps ol{padding-inline-start:23px}
#install-now[hidden]{display:none}
@media(max-width:760px){.install-hero{grid-template-columns:minmax(0,1fr)}.install-qr{order:-1}.install-qr img{max-width:165px}}

/* v0.7: mobile-first unified attendance/quiz activity and read-only AI reports */
.activity-filters{display:grid;grid-template-columns:repeat(3,minmax(0,1fr)) auto;gap:12px;align-items:end}
.activity-filters>div{min-width:0}.activity-filter-button button{margin:0;width:100%}
.activity-list{display:grid;gap:12px}.activity-item{border:1px solid #dbe5f1;background:#fff;border-radius:13px;padding:16px;box-shadow:0 2px 10px #14264907}
.activity-title{display:flex;gap:10px;flex-wrap:wrap;align-items:center;font-weight:750;min-width:0}
.activity-title a{max-width:100%;overflow-wrap:anywhere}.activity-item small{color:#64748b}
.activity-meta{display:flex;flex-wrap:wrap;gap:6px 18px;color:#536581;font-size:.88rem;margin:11px 0}
.activity-meta span{max-width:100%}.activity-pagination{display:flex;justify-content:center;gap:18px;align-items:center;margin:22px 0}
.analytics-tiles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.analytics-tiles .metric{display:grid;gap:5px}
.analytics-tiles strong{overflow-wrap:anywhere}.assistant-check{display:flex;gap:11px;align-items:center;margin-top:18px;font-weight:600}
.assistant-check input{width:22px;height:22px;min-height:0;margin:0;flex:none}.assistant-narrative{line-height:1.75;white-space:pre-wrap;overflow-wrap:anywhere}
@media(max-width:760px){.activity-filters{grid-template-columns:minmax(0,1fr)}.analytics-tiles{grid-template-columns:repeat(2,minmax(0,1fr))}.activity-item{padding:14px}.activity-meta{display:grid;gap:6px}.activity-title{gap:7px}.activity-pagination{gap:12px}}

/* v0.8 compact administration navigation and accessible account security forms. */
.nav-admin{position:relative;min-width:0}
.nav-admin>summary{list-style:none;cursor:pointer;user-select:none;color:white;padding:6px 12px;font-weight:600;font-size:.92rem;border-radius:7px}
.nav-admin>summary::-webkit-details-marker{display:none}
.nav-admin>summary::after{content:" ▾";font-size:.8em}
.nav-admin[open]>summary,.nav-admin>summary:hover{background:#ffffff22}
.nav-admin-links{position:absolute;z-index:25;inset-inline-end:0;top:100%;width:min(265px,90vw);padding:8px;border:1px solid #304777;border-radius:10px;background:#102460;box-shadow:0 12px 25px #08154c33;display:grid;gap:2px;max-height:70vh;overflow-y:auto}
.nav-admin-links a{display:block;padding:9px 12px;font-size:.88rem;white-space:normal}
.nav-admin>summary:focus-visible{outline:3px solid white;outline-offset:3px}
.authbox input[type=password]{font-size:16px}
@media(max-width:760px){
 .nav-admin{width:100%}
 .nav-admin>summary{padding:11px 12px;border-bottom:1px solid #ffffff19;font-size:.95rem}
 .nav-admin-links{position:static;box-shadow:none;border:0;border-radius:0;max-height:none;width:100%;padding:3px 0 8px 12px;background:transparent}
 [dir=rtl] .nav-admin-links{padding:3px 12px 8px 0}
 .nav-admin-links a{padding:10px 12px;font-size:.93rem}
}

/* v1.0 teacher classroom handoff */
.classroom-hub{max-width:920px;margin:auto}.classroom-quiz-list{list-style:none;padding:0;display:grid;gap:10px}.classroom-quiz-item{border:1px solid #d8e1ee;border-radius:12px;padding:12px;display:flex;gap:12px;align-items:center;flex-wrap:wrap}.classroom-quiz-item .muted{flex:1;min-width:150px}.classroom-address{max-width:460px}.classroom-address input{font-size:17px;min-height:44px}.classroom-address button{min-height:46px}

/* v1.2 unified staff workspace, consistent mobile-first design. */
:root{--smart-navy:#10265f;--smart-blue:#2456a9;--smart-edge:#dce5f1}
body{background:#f3f6fb;color:#192a46;line-height:1.55}
main{padding-top:2px}
.panel,.card{border-color:var(--smart-edge);border-radius:16px;box-shadow:0 3px 18px #10265f08}
.nav-inner>a[href="/app"]{background:#ffffff18;border-radius:9px;font-weight:800}
.smart-hero{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:28px 30px;border-radius:19px;background:linear-gradient(120deg,#10265f 0%,#2456a9 100%);color:#fff;min-width:0}
.smart-hero h1{color:#fff;margin:6px 0 10px;font-size:1.8rem}
.smart-hero p{color:#e0eafd;max-width:670px;line-height:1.65}
.smart-hero .btn{background:#fff;border-color:#fff;color:#112c67}
.smart-hero .btn.outline{background:transparent;color:#fff;border:1px solid #c4d9fb}
.smart-kicker{font-weight:800;letter-spacing:.09em;color:#d5e3ff;font-size:.73rem}
.smart-hero-symbol{font-size:3.7rem;opacity:.55;line-height:1}
.smart-statusbar{display:flex;flex-wrap:wrap;gap:12px;background:#fff;border:1px solid var(--smart-edge);border-radius:14px;margin:16px 0 20px;padding:14px 17px}
.smart-statusbar>div{display:flex;gap:8px;align-items:center;flex-wrap:wrap;flex:1;min-width:210px}
.smart-statusbar strong{color:var(--smart-navy)}
.smart-dot{display:inline-block;width:9px;height:9px;border-radius:50%}.smart-dot.cloud{background:#22a46a}.smart-dot.local{background:#a3afc2}
.smart-section-title{font-size:1.2rem;margin:24px 0 14px}
.smart-tiles,.smart-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.smart-tile,.smart-step{border:1px solid var(--smart-edge);background:#fff;border-radius:16px;padding:20px;min-width:0;box-shadow:0 3px 12px #10265f08}
.smart-tile{display:flex;flex-direction:column;gap:8px;transition:transform .16s,border-color .16s;text-decoration:none}
.smart-tile:hover{border-color:#a6c0e8;transform:translateY(-2px);text-decoration:none}
.smart-tile strong{color:var(--smart-navy);font-size:1.01rem}
.smart-tile span:last-child{color:#5f708b;font-size:.87rem}
.smart-tile .tile-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:11px;background:#edf3ff;color:#204b92;font-size:1.4rem;font-weight:700}
.smart-connection{scroll-margin-top:16px}.smart-connection .classroom-address{margin-top:15px}
.smart-step{display:flex;flex-direction:column;gap:9px}
.smart-step h2{margin:0;font-size:1.12rem}.smart-step p{line-height:1.65}
.smart-step>.btn,.smart-step>p:last-child{margin-top:auto}
.smart-step-number{width:33px;height:33px;border-radius:10px;background:#edf3ff;color:#2254a5;display:grid;place-items:center;font-weight:800}
.smart-offline{max-width:650px;margin:8vh auto;padding:30px;background:#fff;border:1px solid var(--smart-edge);border-radius:18px}
.smart-offline .smart-kicker{color:#275398}
.smart-offline form{max-width:460px}
.smart-step input[type=file]{max-width:100%;padding:10px}
.smart-step code{overflow-wrap:anywhere}
@media(max-width:900px){.smart-tiles,.smart-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){
 .smart-tiles,.smart-grid{grid-template-columns:minmax(0,1fr);gap:11px}
 .smart-hero{padding:21px 17px;border-radius:15px;align-items:flex-start}
 .smart-hero h1{font-size:1.4rem}.smart-hero-symbol{font-size:2.1rem}
 .smart-hero .btn{margin:3px 0}.smart-tile,.smart-step{padding:16px}
 .smart-statusbar{padding:13px}.smart-statusbar>div{min-width:0}
 .smart-offline{margin:20px 12px;padding:18px}
 .smart-step button{width:100%;min-height:45px}
}
@media(prefers-reduced-motion:reduce){.smart-tile{transition:none}.smart-tile:hover{transform:none}}
[dir=rtl] .smart-hero,[dir=rtl] .smart-step{text-align:start}
[translate=no],.user-content,.arabic,[dir=auto]{unicode-bidi:plaintext}

/* v1.3 onboarding + responsive settings */
.invitation-hero,.verification-card{margin:30px auto;max-width:800px;text-align:center}.verification-pin{display:inline-block;font-size:clamp(3rem,9vw,5.5rem);font-weight:900;letter-spacing:.18em;line-height:1.15;border:2px dashed #86aace;color:#123768;background:#f0f7ff;padding:20px 30px;border-radius:18px;margin:20px 0;font-variant-numeric:tabular-nums}.invite-link-row{display:flex;gap:10px;align-items:center;margin-top:12px}.invite-link-row input{flex:1;min-width:80px}.settings-grid .panel{min-height:200px}.settings-icon{font-size:2rem;margin-bottom:8px}[hidden]{display:none!important}@media(max-width:620px){.invite-link-row{flex-direction:column;align-items:stretch}}

/* v1.3 modern navigational grouping and consistent touch targets */
.nav .nav-admin>summary{cursor:pointer;white-space:nowrap}.nav-group{min-width:90px}.nav a,.nav summary{min-height:44px}.panel,.card{border-radius:16px}.authbox input,.authbox select,.settings-grid a{min-height:44px}.nav-admin-links a{border-radius:8px}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #257dc7;outline-offset:2px}@media(max-width:760px){.nav-group{width:100%}.nav-inner .nav-admin .nav-admin-links{display:flex;flex-direction:column;gap:6px}}

/* v1.3.1 executive touch polish, password visibility, and dual-mode indicator */
.pw-input-wrapper{position:relative;display:flex;align-items:center;width:100%}
.pw-input-wrapper input{padding-right:44px}
[dir=rtl] .pw-input-wrapper input{padding-right:11px;padding-left:44px}
.pw-toggle-btn{position:absolute;right:8px;top:50%;transform:translateY(-50%);background:transparent!important;border:none!important;color:#54657d!important;cursor:pointer;padding:6px 8px!important;min-height:36px!important;min-width:36px;display:flex;align-items:center;justify-content:center;font-size:1.15rem;border-radius:6px;transition:background .15s}
.pw-toggle-btn:hover{background:#edf2fa!important}
[dir=rtl] .pw-toggle-btn{right:auto;left:8px}

.portal-mode-pill{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:24px;font-size:.82rem;font-weight:600;margin-bottom:14px}
.portal-mode-pill.cloud{background:#eef4ff;color:#102c67;border:1px solid #c9daf8}
.portal-mode-pill .dot{width:8px;height:8px;border-radius:50%;background:#22a46a;display:inline-block}
.portal-mode-pill .dot.online{box-shadow:0 0 0 3px rgba(34,164,106,.2)}

.login-guide-note{margin-top:16px;padding:12px 14px;background:#f8faff;border:1px solid #e2eaf5;border-radius:10px;text-align:start}
.login-guide-note p{margin:4px 0;line-height:1.5}
.primary-btn{background:linear-gradient(135deg,#0a1d62 0%,#19398f 100%)!important;border:none!important;box-shadow:0 3px 10px rgba(10,29,98,.18);width:100%;color:#fff!important;cursor:pointer;border-radius:10px;min-height:44px;font-size:1rem;font-weight:700}
.primary-btn:hover{box-shadow:0 4px 14px rgba(10,29,98,.28);transform:translateY(-1px)}
.primary-btn:active{transform:scale(0.98)}

/* Cross-network quick switch card (Cloud <-> Classroom Pi) */
.network-mode-switcher{margin-top:18px;background:#fbfdff;border:1px solid #d0e0f3;border-radius:13px;padding:14px 16px;text-align:start;box-shadow:0 2px 8px rgba(16,38,95,.04)}
.network-mode-switcher .switcher-badge{display:inline-block;font-size:.68rem;letter-spacing:.07em;font-weight:800;color:#174ea6;background:#e8f0fe;padding:2px 8px;border-radius:12px;margin-bottom:8px;text-transform:uppercase}
.network-mode-switcher .switcher-badge.cloud{color:#0d652d;background:#e6f4ea}
.network-mode-switcher .switcher-main{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.network-mode-switcher .switcher-text{flex:1 1 200px;display:flex;flex-direction:column;gap:3px}
.network-mode-switcher .switcher-text strong{font-size:.88rem;color:#0b205c}
.network-mode-switcher .switcher-text span{font-size:.79rem;color:#5c6c82;line-height:1.35}
.network-mode-switcher .switcher-btn{display:inline-flex;align-items:center;gap:6px;background:#0b205c;color:#fff!important;font-size:.82rem;font-weight:700;padding:9px 14px;border-radius:8px;text-decoration:none!important;white-space:nowrap;transition:background .15s,transform .1s}
.network-mode-switcher .switcher-btn:hover{background:#19398f;transform:translateY(-1px);text-decoration:none!important}
.network-mode-switcher .switcher-btn:active{transform:scale(0.97)}
.network-mode-switcher .switcher-btn.cloud{background:#0d652d}
.network-mode-switcher .switcher-btn.cloud:hover{background:#137333}
@media(max-width:480px){
 .network-mode-switcher .switcher-main{flex-direction:column;align-items:stretch}
 .network-mode-switcher .switcher-btn{justify-content:center;width:100%}
 input,select,textarea{font-size:16px!important}
}
body{padding-bottom:max(16px,env(safe-area-inset-bottom))}
header.header{padding-top:max(12px,env(safe-area-inset-top))}