/* School Management Software - main stylesheet (responsive) */
*{box-sizing:border-box}
:root{--text:#1d2340;--muted:#6b7394;--line:#e3e8f4;--card:#fff;--radius:14px;--shadow:0 4px 18px rgba(30,40,90,.07);--green:#16a34a;--red:#e11d48;--orange:#f59e0b}
html,body{margin:0;padding:0}
body{font-family:"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans Bengali",sans-serif;font-size:14px;color:var(--text);background:var(--bg);line-height:1.5}
a{color:var(--pri);text-decoration:none}
img{max-width:100%}
.ic{width:18px;height:18px;flex:none}
h1,h2,h3,h4{margin:0 0 .5rem;line-height:1.25}

/* Sidebar */
.sidebar{position:fixed;inset:0 auto 0 0;width:250px;background:linear-gradient(170deg,var(--side1),var(--side2));color:#fff;display:flex;flex-direction:column;z-index:50;transition:transform .25s}
.brand{display:flex;gap:10px;align-items:center;padding:18px 16px;border-bottom:1px solid rgba(255,255,255,.18)}
.brand img{width:44px;height:44px;border-radius:12px;background:#fff;object-fit:contain;padding:3px}
.brand strong{display:block;font-size:15px;line-height:1.2}
.brand small{opacity:.85;font-size:11.5px}
.menu{flex:1;overflow-y:auto;padding:10px}
.menu a{display:flex;align-items:center;gap:11px;color:#fff;padding:10px 12px;border-radius:10px;margin-bottom:3px;opacity:.92;font-weight:500}
.menu a:hover{background:rgba(255,255,255,.14);opacity:1}
.menu a.active{background:#fff;color:var(--sec);opacity:1;box-shadow:0 4px 12px rgba(0,0,0,.12)}
.side-foot{font-size:11px;padding:12px 16px;opacity:.8;border-top:1px solid rgba(255,255,255,.18)}
.overlay{display:none}

/* Main */
.main{margin-left:250px;min-height:100vh;display:flex;flex-direction:column}
.topbar{position:sticky;top:0;z-index:30;background:#fff;display:flex;align-items:center;gap:12px;padding:10px 22px;border-bottom:1px solid var(--line)}
.topbar h1{font-size:18px;margin:0;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.burger{display:none;background:none;border:0;cursor:pointer;color:var(--text);padding:6px}
.burger .ic{width:24px;height:24px}
.top-right{display:flex;align-items:center;gap:10px}
.pill{display:flex;align-items:center;gap:6px;padding:7px 12px;border-radius:30px;background:color-mix(in srgb,var(--pri) 12%,#fff);font-weight:600;font-size:13px}
.user-btn{display:flex;align-items:center;gap:8px;background:none;border:0;cursor:pointer;text-align:left;color:var(--text);font:inherit}
.user-btn small{display:block;color:var(--muted);font-size:11px}
.avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--pri),var(--sec));color:#fff;display:grid;place-items:center;font-weight:700}
.dropdown{position:relative}
.dd-menu{display:none;position:absolute;right:0;top:110%;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);min-width:200px;overflow:hidden}
.dd-menu a{display:block;padding:10px 14px;color:var(--text)}
.dd-menu a:hover{background:var(--bg)}
.dropdown.open .dd-menu{display:block}
.content{padding:20px 22px 40px;flex:1}

/* Tabs */
.tabs{display:flex;gap:6px;overflow-x:auto;padding-bottom:4px;margin-bottom:16px;scrollbar-width:thin}
.tabs a{white-space:nowrap;padding:8px 14px;border-radius:30px;background:#fff;border:1px solid var(--line);color:var(--text);font-weight:600;font-size:13px}
.tabs a.active{background:linear-gradient(90deg,var(--pri),var(--sec));color:#fff;border-color:transparent}

/* Cards & grid */
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:18px;border:1px solid var(--line)}
.card-h{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.card-h h3{margin:0;font-size:16px}
.grid{display:grid;gap:16px}
.grid>*{min-width:0}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.g-side{grid-template-columns:minmax(0,1fr) 340px}
.stat{display:flex;align-items:center;gap:14px;padding:16px;border-radius:var(--radius);color:#fff;background:linear-gradient(135deg,var(--pri),var(--sec));box-shadow:var(--shadow)}
.stat:nth-child(2n){background:linear-gradient(135deg,var(--sec),var(--pri))}
.stat .ic{width:34px;height:34px;opacity:.9}
.stat b{display:block;font-size:22px;line-height:1.1}
.stat span{font-size:12.5px;opacity:.92}
.mini{padding:14px;border-radius:12px;background:var(--bg);border:1px solid var(--line)}
.mini b{display:block;font-size:18px}
.mini span{color:var(--muted);font-size:12px}

/* Forms */
label{display:block;font-weight:600;font-size:12.5px;margin-bottom:4px;color:#3a4266}
.f{margin-bottom:12px}
input[type=text],input[type=number],input[type=email],input[type=password],input[type=date],input[type=time],input[type=month],input[type=tel],input[type=search],input:not([type]),select,textarea{width:100%;padding:9px 11px;border:1px solid #cfd6ea;border-radius:9px;font:inherit;background:#fff;color:var(--text)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--pri);box-shadow:0 0 0 3px color-mix(in srgb,var(--pri) 20%,transparent)}
input[type=color]{width:60px;height:38px;border:1px solid #cfd6ea;border-radius:8px;padding:2px;background:#fff}
textarea{min-height:80px;resize:vertical}
.fg{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:0 14px}
.fg .full{grid-column:1/-1}
.form-sec{font-size:14px;color:var(--sec);border-bottom:2px solid color-mix(in srgb,var(--sec) 20%,#fff);padding-bottom:6px;margin:14px 0 12px}
.inline{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end}
.inline .f{margin-bottom:0;min-width:140px;flex:1}
.inline .f.sm{flex:0 0 auto;min-width:0}
.check{display:flex;align-items:center;gap:6px;font-weight:500}
.help{color:var(--muted);font-size:12px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:0;border-radius:9px;padding:9px 16px;font:inherit;font-weight:600;cursor:pointer;background:linear-gradient(90deg,var(--pri),var(--sec));color:#fff;white-space:nowrap}
.btn:hover{filter:brightness(1.06)}
.btn-sm{padding:5px 10px;font-size:12.5px;border-radius:7px}
.btn-light{background:#eef2fb;color:var(--text)}
.btn-green{background:var(--green)}
.btn-red{background:var(--red)}
.btn-orange{background:var(--orange)}
.btn-outline{background:#fff;color:var(--sec);border:1px solid var(--sec)}
.actions{display:flex;gap:6px;flex-wrap:wrap}
form.inline-form{display:inline}

/* Tables */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:10px;border:1px solid var(--line)}
table.t{width:100%;border-collapse:collapse;background:#fff;min-width:560px}
.t th{background:color-mix(in srgb,var(--pri) 10%,#fff);text-align:left;font-size:12.5px;padding:10px;border-bottom:1px solid var(--line);white-space:nowrap}
.t td{padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
.t tr:hover td{background:#fafbff}
.t .num{text-align:right}
.t input,.t select{padding:6px 8px}
.thumb{width:38px;height:38px;border-radius:50%;object-fit:cover;background:#eee}
.t tfoot td{font-weight:700;background:#f7f9ff}

/* Badges & alerts */
.badge{display:inline-block;padding:2px 9px;border-radius:30px;font-size:11.5px;font-weight:700}
.b-green{background:#dcfce7;color:#166534}.b-red{background:#ffe4e6;color:#9f1239}.b-orange{background:#fef3c7;color:#92400e}.b-gray{background:#eceef3;color:#4b5563}.b-blue{background:color-mix(in srgb,var(--pri) 15%,#fff);color:#0b4f75}
.alert{padding:11px 14px;border-radius:10px;margin-bottom:14px;font-weight:500}
.alert-success{background:#dcfce7;color:#166534}.alert-danger{background:#ffe4e6;color:#9f1239}.alert-warning{background:#fef3c7;color:#92400e}.alert-info{background:color-mix(in srgb,var(--pri) 13%,#fff);color:#0b4f75}
.empty{text-align:center;color:var(--muted);padding:26px}

/* Attendance radio pills */
.att{display:flex;gap:4px}
.att input{display:none}
.att label{margin:0;padding:4px 10px;border-radius:6px;border:1px solid var(--line);cursor:pointer;font-size:12px}
.att input[value=P]:checked+label{background:var(--green);color:#fff;border-color:var(--green)}
.att input[value=A]:checked+label{background:var(--red);color:#fff;border-color:var(--red)}
.att input[value=L]:checked+label{background:var(--orange);color:#fff;border-color:var(--orange)}

/* Profile */
.profile-top{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.profile-top img{width:110px;height:120px;border-radius:12px;object-fit:cover;border:3px solid color-mix(in srgb,var(--pri) 30%,#fff)}
.kv{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:2px 18px}
.kv div{padding:7px 0;border-bottom:1px dashed var(--line)}
.kv span{display:block;color:var(--muted);font-size:11.5px}
.notice{padding:10px 0;border-bottom:1px solid var(--line)}
.notice:last-child{border:0}
.notice small{color:var(--muted)}
.chart-box{position:relative;height:270px}
.routine-grid td{min-width:120px;font-size:12.5px}
.slot{background:color-mix(in srgb,var(--pri) 10%,#fff);border-left:3px solid var(--sec);padding:5px 7px;border-radius:6px;margin-bottom:4px}
.slot small{display:block;color:var(--muted)}
.swatch{display:inline-block;width:22px;height:22px;border-radius:6px;vertical-align:middle;border:1px solid #ddd}
.preset{border:1px solid var(--line);border-radius:10px;padding:8px;cursor:pointer;background:#fff;font:inherit;display:flex;gap:6px;align-items:center}

/* Login */
.auth{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,var(--side1),var(--side2));padding:16px}
.auth-card{background:#fff;border-radius:18px;padding:30px 26px;width:100%;max-width:400px;box-shadow:0 20px 50px rgba(0,0,0,.2)}
.auth-card img{width:72px;height:72px;object-fit:contain;display:block;margin:0 auto 8px}
.auth-card h2{text-align:center;font-size:20px}
.auth-card p.sub{text-align:center;color:var(--muted);margin-top:-4px}
.auth-card .btn{width:100%;padding:11px}
.seg{display:flex;background:#eef2fb;border-radius:10px;padding:4px;margin-bottom:16px}
.seg a{flex:1;text-align:center;padding:8px;border-radius:8px;color:var(--text);font-weight:600}
.seg a.on{background:#fff;box-shadow:var(--shadow);color:var(--sec)}

/* Portal */
.portal-top{background:linear-gradient(90deg,var(--side1),var(--side2));color:#fff;padding:12px 18px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.portal-top img{width:40px;height:40px;border-radius:10px;background:#fff;padding:2px;object-fit:contain}
.portal-top .sp{flex:1}
.portal-top a{color:#fff}
.portal-wrap{max-width:1100px;margin:0 auto;padding:18px}

/* Responsive */
@media (max-width:1100px){.g4{grid-template-columns:repeat(2,minmax(0,1fr))}.g-side{grid-template-columns:minmax(0,1fr)}}
@media (max-width:900px){
  .sidebar{transform:translateX(-100%)}
  body.nav-open .sidebar{transform:none}
  body.nav-open .overlay{display:block;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:40}
  .main{margin-left:0}
  .burger{display:block}
  .g3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:600px){
  .content{padding:14px 12px 30px}
  .topbar{padding:8px 12px}
  .g2,.g3{grid-template-columns:minmax(0,1fr)}
  .g4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hide-sm{display:none}
  .stat{padding:12px;gap:10px}.stat b{font-size:18px}.stat .ic{width:26px;height:26px}
  .card{padding:14px}
  .inline .f{min-width:100%}
  .inline .btn{width:100%}
}
@media print{.sidebar,.topbar,.tabs,.no-print,.btn{display:none!important}.main{margin:0}.card{box-shadow:none;border:0}}

/* Branch switcher */
.branch-switch{display:flex;align-items:center;gap:6px;background:linear-gradient(90deg,color-mix(in srgb,var(--pri) 14%,#fff),color-mix(in srgb,var(--sec) 14%,#fff));border:1px solid color-mix(in srgb,var(--sec) 25%,#fff);border-radius:30px;padding:4px 6px 4px 12px;color:var(--sec);margin:0}
.branch-switch select{border:0;background:transparent;font-weight:700;color:var(--text);padding:5px 4px;max-width:220px;cursor:pointer;width:auto}
.branch-switch select:focus{box-shadow:none}
.branch-switch.fixed{padding:7px 14px;font-weight:700;font-size:13px}
.branch-chip{display:inline-block;font-size:11px;font-weight:700;padding:1px 8px;border-radius:20px;background:color-mix(in srgb,var(--sec) 12%,#fff);color:var(--sec);white-space:nowrap}
.branch-card{border-radius:14px;border:1px solid var(--line);padding:16px;background:#fff;display:flex;flex-direction:column;gap:6px}
.branch-card .bc-top{display:flex;gap:12px;align-items:center}
.branch-card img{width:48px;height:48px;border-radius:12px;object-fit:contain;background:var(--bg)}
.branch-card .bc-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:6px}
.branch-card .bc-stats div{background:var(--bg);border-radius:10px;padding:8px;text-align:center}
.branch-card .bc-stats b{display:block;font-size:17px}.branch-card .bc-stats span{font-size:11.5px;color:var(--muted)}
.bar{height:8px;border-radius:8px;background:#eef1f8;overflow:hidden}.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--pri),var(--sec));border-radius:8px}
@media (max-width:600px){.branch-switch select{max-width:130px}.branch-switch{padding-left:8px}}
@media (max-width:600px){.topbar:has(.branch-switch) h1{display:none}.topbar:has(.branch-switch) .top-right{flex:1;justify-content:flex-end}.branch-switch select{max-width:170px}}

/* guardian call button + copy toast */
.btn-call{background:#e7f8ee;color:var(--green);padding:5px 9px}
.btn-call:hover{background:var(--green);color:#fff}
.copy-toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);background:#1d2340;color:#fff;padding:10px 16px;border-radius:10px;font-size:13px;font-weight:600;box-shadow:0 6px 20px rgba(0,0,0,.2);opacity:0;transition:.25s;z-index:9999;pointer-events:none}
.copy-toast.show{opacity:1;transform:translate(-50%,0)}
.btn-regular{background:#dcfce7;color:#166534}
.btn-regular:hover{background:var(--green);color:#fff}
.btn-irregular{background:#fef3c7;color:#92400e}
.btn-irregular:hover{background:var(--orange);color:#fff}