:root{
  --navy:#17324d;
  --teal:#167d83;
  --bg:#f4f7f8;
  --sf:#fff;
  --tx:#202c36;
  --tx2:#697783;
  --bd:#e2e9ed;
  --ok:#287d55;
  --warn:#a76510;
  --err:#bd3d3d;
  --ac:#17324d;
  --sf-raised:#fff;
  --shadow-sm:0 2px 8px rgba(23,50,77,.045);
  --shadow-md:0 12px 30px rgba(23,50,77,.09);
  color-scheme:light;
}
:root[data-theme=dark]{
  --bg:#111a21;
  --sf:#1a2731;
  --sf-raised:#22313c;
  --tx:#e9f0f4;
  --tx2:#a8b6c0;
  --bd:#33434f;
  --ac:#8bd0d0;
  --navy:#28506a;
  --teal:#45a9a7;
  color-scheme:dark;
}
@media(prefers-color-scheme:dark){
  :root:not([data-theme=light]){
    --bg:#111a21;
    --sf:#1a2731;
    --sf-raised:#22313c;
    --tx:#e9f0f4;
    --tx2:#a8b6c0;
    --bd:#33434f;
    --ac:#8bd0d0;
    --navy:#28506a;
    --teal:#45a9a7;
    color-scheme:dark;
  }
}
html{scroll-behavior:smooth;scroll-padding-top:24px}
body{
  background:
    radial-gradient(ellipse at 90% 0%,color-mix(in srgb,var(--teal) 5%,transparent),transparent 34rem),
    var(--bg);
  color:var(--tx);
  font-family:Manrope,Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  letter-spacing:-.01em;
  line-height:1.65;
}
.w{max-width:1120px;padding-inline:24px}
header{
  background:color-mix(in srgb,var(--sf) 94%,transparent);
  border-top:0;
  border-bottom:1px solid color-mix(in srgb,var(--bd) 85%,transparent);
  box-shadow:0 2px 12px rgba(23,50,77,.035);
  backdrop-filter:blur(16px);
}
.bar{gap:18px;padding-block:12px}
.logo{gap:10px;font-size:18px;font-weight:800;letter-spacing:-.045em}
.logo svg{filter:drop-shadow(0 2px 3px rgba(23,50,77,.12))}
nav{gap:4px}
nav a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 12px;
  border-radius:10px;
  color:var(--tx2);
  font-weight:600;
  font-size:13px;
  white-space:nowrap;
}
nav a[aria-current]{
  color:var(--ac);
  background:color-mix(in srgb,var(--teal) 11%,var(--sf));
  box-shadow:none;
  font-weight:800;
}
nav a:hover{color:var(--ac);background:color-mix(in srgb,var(--teal) 8%,var(--sf))}
.db-status{padding:7px 11px;background:var(--sf);font-weight:600}
button,select,input,textarea{font:inherit}
button{
  min-height:40px;
  padding:9px 15px;
  border:1px solid var(--bd);
  border-radius:10px;
  background:var(--sf);
  color:var(--tx);
  font-weight:700;
  box-shadow:0 1px 2px rgba(23,50,77,.025);
}
button.p{
  background:var(--navy);
  color:#fff;
  border-color:var(--navy);
  box-shadow:0 4px 10px color-mix(in srgb,var(--navy) 16%,transparent);
}
button.p:hover{background:var(--teal);border-color:var(--teal)}
button:hover{border-color:color-mix(in srgb,var(--teal) 48%,var(--bd));box-shadow:0 5px 15px rgba(23,50,77,.08)}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:3px solid color-mix(in srgb,var(--teal) 45%,transparent);
  outline-offset:2px;
}
input,select,textarea{
  min-height:42px;
  padding:9px 12px;
  border:1px solid var(--bd);
  border-radius:10px;
  background:var(--sf-raised);
  color:var(--tx);
  transition:border-color .16s ease,box-shadow .16s ease;
}
textarea{line-height:1.6}
input:hover,select:hover,textarea:hover{border-color:color-mix(in srgb,var(--teal) 42%,var(--bd))}
input:focus,select:focus,textarea:focus{border-color:var(--teal);box-shadow:0 0 0 3px color-mix(in srgb,var(--teal) 12%,transparent)}
input[type=checkbox]{min-height:unset;accent-color:var(--teal)}
h1,h2,h3{color:var(--ac);letter-spacing:-.04em}
h1{font-size:clamp(28px,4vw,40px);line-height:1.16;margin-bottom:18px}
h2{font-size:21px;line-height:1.3;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--bd)}
h3{font-size:16px;line-height:1.4;margin-bottom:8px}
main{min-height:calc(100vh - 72px);padding-block:32px 64px}
.g{gap:18px;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr))}
.c{
  padding:20px;
  border:1px solid var(--bd);
  border-radius:16px;
  background:var(--sf);
  box-shadow:var(--shadow-sm);
}
.m{color:var(--tx2);line-height:1.65}
.tag{border-radius:999px;padding:4px 10px;background:color-mix(in srgb,var(--teal) 8%,var(--sf));font-weight:700}
.row{gap:10px;margin-block:14px}
table{border-collapse:separate;border-spacing:0;border:1px solid var(--bd);border-radius:12px;overflow:hidden;background:var(--sf);font-size:14px}
th,td{padding:11px 13px;border-bottom:1px solid var(--bd);vertical-align:top}
th{background:color-mix(in srgb,var(--teal) 7%,var(--sf));color:var(--ac);font-weight:800}
tr:last-child td{border-bottom:0}
.bar2{height:9px;border-radius:999px}
.bar2 i{border-radius:inherit}
.opt{min-height:48px;padding:12px 15px;border-radius:12px}
.opt[aria-pressed=true]{border-color:var(--teal);background:color-mix(in srgb,var(--teal) 10%,var(--sf))}
.quiz-active{border-radius:16px}
.teacher-unread-dot{flex:none;width:10px;height:10px;margin-inline-start:auto;box-shadow:0 0 0 3px color-mix(in srgb,var(--err) 12%,var(--sf))}
.hero{
  min-height:300px;
  padding:clamp(28px,5vw,56px);
  border:1px solid color-mix(in srgb,#fff 12%,transparent);
  border-radius:24px;
  background:
    radial-gradient(ellipse at 92% 4%,rgba(104,204,196,.27),transparent 32%),
    radial-gradient(ellipse at 65% 100%,rgba(57,120,157,.25),transparent 43%),
    linear-gradient(125deg,#17324d,#204965);
  box-shadow:var(--shadow-md);
}
.hero h1{max-width:680px;font-size:clamp(32px,5vw,50px);letter-spacing:-.055em}
.hero p{max-width:660px}
.hero .row{margin-top:22px}
.hero .p{background:#45a9a7;border-color:#45a9a7}
.hero .p:hover{background:#58bbb6;border-color:#58bbb6}
.hero button:not(.p){background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.24)}
.hero button:not(.p):hover{background:rgba(255,255,255,.15)}
.hero .c{border-color:var(--bd);border-radius:16px}
#f .c,#h .c{border-inline-start:3px solid var(--teal)}
.teacher-guidance{border-radius:12px}
.db-error{border-radius:14px}
summary{padding:4px 0;color:var(--ac);font-weight:700}
details[open]>summary{margin-bottom:12px}
body.side{
  grid-template-columns:252px minmax(0,1fr);
  background:var(--bg);
}
body.side header{
  background:var(--sf);
  border-inline-end:1px solid var(--bd);
  box-shadow:4px 0 18px rgba(23,50,77,.035);
}
body.side header .w{padding:22px 16px}
body.side .logo{padding:4px 10px 20px;margin-bottom:12px}
body.side nav{gap:5px}
body.side nav a,body.side nav button{
  min-height:46px;
  padding:11px 13px;
  border-radius:11px;
  font-size:13px;
  font-weight:650;
}
body.side nav a[aria-current],body.side nav button[aria-current]{
  background:color-mix(in srgb,var(--teal) 11%,var(--sf));
  color:var(--ac);
  box-shadow:inset 3px 0 var(--teal);
  font-weight:800;
}
body.side nav a:hover,body.side nav button:hover{background:color-mix(in srgb,var(--teal) 7%,var(--sf))}
body.side main{max-width:1200px;padding:40px clamp(24px,5vw,72px) 72px}
body.side .db-status{margin-top:auto;justify-content:center}
body.side main>.row:has(>[data-tt]){gap:6px;padding:8px;margin-bottom:22px;border:1px solid var(--bd);border-radius:14px;background:var(--sf);box-shadow:var(--shadow-sm)}
body.side main>.row:has(>[data-tt]) button{border-color:transparent;background:transparent}
body.side main>.row:has(>[data-tt]) button[aria-current]{color:var(--ac);background:color-mix(in srgb,var(--teal) 11%,var(--sf))}
@media(max-width:1000px){
  .bar{gap:10px}
  body.side{grid-template-columns:220px minmax(0,1fr)}
  body.side main{padding-inline:28px}
}
@media(max-width:800px){
  .w{padding-inline:18px}
  .bar{padding-block:9px}
  body.side{display:block}
  body.side header{height:auto;position:sticky;top:env(safe-area-inset-top,0px);border-inline-end:0;border-bottom:1px solid var(--bd);overflow:visible}
  body.side header .w{height:auto;padding:9px 14px;flex-direction:row;flex-wrap:wrap;align-items:center;gap:8px}
  body.side .logo{flex:1;padding:0;margin:0;border:0}
  body.side header .w>button{width:auto}
  body.side nav{flex-direction:row;flex:1 1 100%;order:3;overflow-x:auto;overflow-y:hidden;padding:2px 0 4px;scrollbar-width:thin}
  body.side nav a,body.side nav button{width:auto;min-height:40px;flex:none;padding:8px 12px}
  body.side nav [aria-current]{box-shadow:inset 0 -2px var(--teal)}
  body.side .db-status{display:none}
  body.side main{padding:24px 18px 48px}
  body.side main>.row:has(>[data-tt]){overflow-x:auto;flex-wrap:nowrap}
  body.side main>.row:has(>[data-tt]) button{flex:none;white-space:nowrap}
  .hero{min-height:unset}
}
@media(max-width:560px){
  body{font-size:15px}
  .w{padding-inline:14px}
  main{padding-block:22px 42px}
  body.side main{padding:20px 14px 42px}
  .c{padding:16px;border-radius:14px}
  .g{grid-template-columns:minmax(0,1fr);gap:12px}
  .hero{padding:26px 20px;border-radius:18px}
  .hero h1{font-size:clamp(30px,9vw,40px)}
  .row{align-items:stretch}
  .row>label{flex:1 1 100%}
  .row>button{flex:1 1 auto}
  .row input,.row select{max-width:100%}
  table{display:block;overflow-x:auto;white-space:nowrap}
  .db-status{font-size:11px;padding:5px 8px}
  body.side nav{margin-inline:-2px}
  body.side nav a{font-size:12px;padding-inline:10px}
}
@media(prefers-reduced-motion:no-preference){
  button,a,.c,summary{transition:color .16s ease,background-color .16s ease,border-color .16s ease,box-shadow .16s ease,transform .16s ease}
  .c:hover{box-shadow:var(--shadow-md)}
  button:active{transform:translateY(1px)}
  main>#app>*{animation:saathi-enter .24s ease both}
}
@keyframes saathi-enter{from{opacity:.65;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}
}
/* Keep dashboard content inside the available grid column. */
body.side>main,
body.side>header,
main>*,
.c,
.row,
.g{min-width:0}
main img,main svg,main canvas{max-width:100%;height:auto}
main p,main li,main td,main th,main summary{overflow-wrap:anywhere}
.row>*{max-width:100%;min-width:0}
.row>label{flex:1 1 180px}
.row>label input,.row>label select,.row>label textarea{width:100%}
input,select,textarea{max-width:100%}
@media(min-width:801px){
  body.side{grid-template-columns:252px minmax(0,1fr)}
  body.side>main{width:100%;min-width:0}
  body.side .g{grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr))}
  body.side table{table-layout:auto}
}
@media(max-width:800px){
  body.side nav{
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    flex:1 1 100%;
    gap:5px;
    overflow:visible;
    padding:4px 0 2px;
    margin:0;
  }
  body.side nav a,body.side nav button{
    display:flex;
    width:100%;
    min-width:0;
    min-height:48px;
    height:auto;
    padding:6px 3px;
    flex:none;
    flex-direction:column;
    justify-content:center;
    gap:3px;
    white-space:normal;
    text-align:center;
    line-height:1.2;
    font-size:11px;
  }
  body.side nav a svg,body.side nav button svg{flex:none;width:17px;height:17px}
  body.side nav a[aria-current],body.side nav button[aria-current]{box-shadow:inset 0 -2px var(--teal)}
  body.side nav .teacher-unread-dot{position:absolute;top:4px;inset-inline-end:calc(50% - 22px);width:8px;height:8px;margin:0}
  body.side nav a:has(.teacher-unread-dot),body.side nav button:has(.teacher-unread-dot){position:relative}
  body.side .bar{gap:8px}
  body.side main{min-width:0}
  body.side .g{grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr))}
  body.side .hero{grid-template-columns:minmax(0,1fr)}
  .row{flex-wrap:wrap}
  .row>button{flex:0 1 auto}
}
@media(max-width:560px){
  .w{width:100%;max-width:100%}
  body.side header .w{width:100%;padding-inline:12px}
  body.side .logo{min-width:0;flex:1 1 140px}
  body.side header .w>button{flex:0 0 auto;padding-inline:11px}
  body.side nav{grid-template-columns:repeat(4,minmax(0,1fr));width:100%}
  body.side nav a,body.side nav button{font-size:10px;padding-inline:2px}
  body.side main{padding-inline:12px}
  main{padding-inline:12px}
  .g{grid-template-columns:minmax(0,1fr);gap:12px}
  .row{align-items:stretch;gap:9px}
  .row>label{flex:1 1 100%}
  .row>button{flex:1 1 120px}
  .row>input,.row>select,.row>textarea{flex:1 1 100%;width:100%}
  .row>label input,.row>label select{width:100%}
  .hero{grid-template-columns:minmax(0,1fr);gap:12px}
  .hero .row>button{flex:1 1 130px}
  .teacher-unread-dot{width:8px;height:8px}
  table{
    display:block;
    width:100%;
    max-width:100%;
    border:0;
    border-radius:0;
    overflow:visible;
    white-space:normal;
    background:transparent;
    font-size:13px;
  }
  table thead{
    position:absolute;
    width:1px;
    height:1px;
    padding:0;
    margin:-1px;
    overflow:hidden;
    clip:rect(0,0,0,0);
    white-space:nowrap;
    border:0;
  }
  table tbody{display:grid;gap:9px;width:100%}
  table tr{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:0 12px;
    min-width:0;
    padding:10px 12px;
    border:1px solid var(--bd);
    border-radius:12px;
    background:var(--sf);
    box-shadow:var(--shadow-sm);
  }
  table tr:has(th){
    position:absolute;
    width:1px;
    height:1px;
    padding:0;
    margin:-1px;
    overflow:hidden;
    clip:rect(0,0,0,0);
    white-space:nowrap;
    border:0;
  }
  table td,table th{
    display:flex;
    min-width:0;
    align-items:flex-start;
    flex-direction:column;
    gap:3px;
    padding:8px 0;
    border:0;
    overflow-wrap:anywhere;
    white-space:normal;
  }
  table td::before{
    content:attr(data-label);
    color:var(--tx2);
    font-size:10px;
    font-weight:800;
    letter-spacing:.045em;
    line-height:1.3;
    text-transform:uppercase;
  }
  table td[colspan]{grid-column:1/-1}
  table td[colspan]::before{content:none}
  table td button{max-width:100%;padding:7px 9px;font-size:12px}
  table td input[type=checkbox]{align-self:flex-start}
  table tr td:only-child{grid-column:1/-1}
  table tr:has(td[colspan]){padding:8px}
  table tr:has(td[colspan]) td{padding:4px}
  table details{min-width:0}
  main svg{display:block;width:100%;height:auto}
}
@media(max-width:360px){
  body.side nav{grid-template-columns:repeat(3,minmax(0,1fr))}
  body.side nav a,body.side nav button{font-size:11px}
  table tr{grid-template-columns:minmax(0,1fr)}
  table td[colspan]{grid-column:auto}
}