/* =========================================================================
   SchoolMate — Admin styles
   ========================================================================= */
:root{
  --brand:#4f46e5;--brand-2:#7c3aed;--ink:#0f172a;--ink-soft:#475569;--muted:#64748b;
  --line:#e2e8f0;--bg:#f1f5f9;--card:#fff;--radius:14px;
  --shadow-sm:0 1px 2px rgba(15,23,42,.06),0 4px 12px rgba(15,23,42,.05);
  --shadow:0 10px 30px -12px rgba(15,23,42,.2);
  --ok:#16a34a;--warn:#d97706;--danger:#dc2626;
  /* Self-host friendly stack: uses a locally installed Inter when present,
     otherwise the OS UI font. No remote font request is made (privacy,
     performance, offline-network reliability). */
  --font:'Inter','Inter var',system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
}
*{box-sizing:border-box}
body{margin:0;font-family:var(--font);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}

/* Accessibility baseline ------------------------------------------------- */
/* Visible keyboard focus everywhere (was relying on browser default/none). */
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,
textarea:focus-visible,[tabindex]:focus-visible,summary:focus-visible{
  outline:3px solid var(--brand);outline-offset:2px;border-radius:6px;
}
/* Skip link — first tab stop, jumps past the nav to main content. */
.skip-link{position:absolute;left:-9999px;top:0;z-index:1000;background:var(--brand);color:#fff;padding:10px 16px;border-radius:0 0 8px 0;font-weight:600}
.skip-link:focus{left:0}
/* Respect the OS "reduce motion" preference for every animated affordance. */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;letter-spacing:-.01em}

/* ---- Auth screen ------------------------------------------------------ */
.auth{min-height:100vh;display:grid;grid-template-columns:1.05fr .95fr}
.auth-aside{
  position:relative;overflow:hidden;color:#fff;padding:54px 56px;display:flex;flex-direction:column;justify-content:space-between;
  background:
    linear-gradient(150deg,rgba(79,70,229,.55),rgba(124,58,237,.62)),
    url('../img/login-side.jpg') center/cover no-repeat,
    linear-gradient(150deg,var(--brand),var(--brand-2));
}
.auth-aside::before{content:"";position:absolute;inset:0;background:radial-gradient(40% 50% at 85% 10%,rgba(255,255,255,.18),transparent 60%),radial-gradient(40% 50% at 0% 100%,rgba(255,255,255,.12),transparent 55%)}
.auth-aside>*{position:relative}
.auth-brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:22px}
.auth-brand .m{width:40px;height:40px;border-radius:12px;background:rgba(255,255,255,.16);display:grid;place-items:center;backdrop-filter:blur(4px)}
.auth-hero h2{font-size:34px;line-height:1.2;margin-bottom:16px;max-width:440px}
.auth-hero p{opacity:.9;font-size:16px;max-width:420px;line-height:1.6}
.auth-points{display:flex;flex-direction:column;gap:14px;margin-top:26px}
.auth-points div{display:flex;gap:11px;align-items:center;font-size:15px;opacity:.95}
.auth-points .c{width:26px;height:26px;border-radius:8px;background:rgba(255,255,255,.18);display:grid;place-items:center;flex:0 0 auto}
.auth-foot{font-size:13px;opacity:.7}
.auth-main{display:grid;place-items:center;padding:40px}
.auth-card{width:100%;max-width:400px}
.auth-card h1{font-size:26px;margin-bottom:6px}
.auth-card .sub{color:var(--muted);margin-bottom:28px;font-size:15px}
.demo-hint{background:#eef2ff;border:1px solid #c7d2fe;color:#3730a3;border-radius:10px;padding:11px 14px;font-size:13px;margin-bottom:22px;line-height:1.5}
.demo-hint code{background:#fff;padding:1px 6px;border-radius:5px;border:1px solid #c7d2fe;font-size:12.5px}
@media(max-width:860px){.auth{grid-template-columns:1fr}.auth-aside{display:none}}

/* ---- Form controls ---------------------------------------------------- */
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:7px;color:var(--ink)}
.input,select.input,textarea.input{
  width:100%;border:1px solid var(--line);border-radius:10px;padding:11px 13px;font-size:14.5px;font-family:inherit;
  background:#fff;transition:border .15s,box-shadow .15s;color:var(--ink)
}
.input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(79,70,229,.14)}
textarea.input{resize:vertical;min-height:78px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field-row-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}
.hint{font-size:12px;color:var(--muted);margin-top:5px}

.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:14px;padding:11px 18px;border-radius:10px;border:1px solid transparent;cursor:pointer;transition:.16s;font-family:inherit}
.btn:active{transform:translateY(1px)}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 8px 20px -10px rgba(79,70,229,.7)}
.btn-primary:hover{box-shadow:0 14px 26px -10px rgba(79,70,229,.8)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-danger{background:#fff;border-color:#fecaca;color:var(--danger)}
.btn-danger:hover{background:#fef2f2}
.btn-sm{padding:7px 12px;font-size:13px}
.btn-block{width:100%;justify-content:center}
.btn:disabled{opacity:.6;cursor:not-allowed}

/* toggle switch — the checkbox stays in the accessibility tree and keyboard
   tab order (visually hidden, NOT display:none) so it is operable by keyboard
   and announced by screen readers; the track is the painted control. */
.switch{display:inline-flex;align-items:center;gap:10px;cursor:pointer;font-size:14px;font-weight:500;user-select:none}
.switch input{position:absolute;opacity:0;width:42px;height:24px;margin:0;cursor:pointer}
.switch .track{width:42px;height:24px;border-radius:999px;background:#cbd5e1;position:relative;transition:.2s;flex:0 0 auto}
.switch .track::after{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#fff;transition:.2s;box-shadow:0 1px 3px rgba(0,0,0,.2)}
.switch input:checked + .track{background:var(--brand)}
.switch input:checked + .track::after{transform:translateX(18px)}
.switch input:focus-visible + .track{outline:3px solid var(--brand);outline-offset:2px}

/* ---- App shell -------------------------------------------------------- */
.shell{display:grid;grid-template-columns:256px 1fr;min-height:100vh}
.sidebar{background:#0f172a;color:#cbd5e1;padding:18px 14px 0;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto}
.sidebar::-webkit-scrollbar{width:7px}.sidebar::-webkit-scrollbar-thumb{background:#1e293b;border-radius:4px}
.s-section:first-of-type{padding-top:6px}
.sidebar .s-brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;font-size:19px;padding:8px 10px 20px}
.sidebar .s-brand .m{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:grid;place-items:center}
.s-section{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:#64748b;padding:14px 12px 7px;font-weight:700}
.s-link{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:10px;color:#94a3b8;font-size:14px;font-weight:500;transition:.15s;margin-bottom:2px}
.s-link:hover{background:rgba(148,163,184,.1);color:#fff}
.s-link.active{background:linear-gradient(135deg,rgba(79,70,229,.22),rgba(124,58,237,.18));color:#fff}
.s-link .ic{flex:0 0 auto;opacity:.9}
.s-link.disabled{opacity:.45;cursor:not-allowed}
.s-link .soon{margin-left:auto;font-size:10px;background:#1e293b;color:#94a3b8;padding:2px 7px;border-radius:6px;font-weight:600}
.s-foot{margin-top:auto;padding:12px;border-top:1px solid #1e293b}
.s-user{display:flex;align-items:center;gap:10px;font-size:13px}
.s-user .ava{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;display:grid;place-items:center;font-weight:700;flex:0 0 auto}
.s-user b{color:#fff;display:block;font-size:13.5px}
.s-user span{color:#64748b;font-size:11.5px}

.main{display:flex;flex-direction:column;min-width:0}
.topbar{background:#fff;border-bottom:1px solid var(--line);padding:0 30px;height:66px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:20}
.topbar h1{font-size:19px}
.topbar .crumb{color:var(--muted);font-size:13px}
.topbar-actions{display:flex;align-items:center;gap:12px}
.content{padding:30px;max-width:1180px;width:100%}
.tenant-switch{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:0 6px 0 11px;color:var(--muted)}
.tenant-switch select{border:0;background:none;font-family:inherit;font-size:13.5px;font-weight:600;color:var(--ink);padding:9px 6px;cursor:pointer;outline:none;max-width:200px}
.tenant-switch .ts-ic{display:flex;color:var(--brand)}

/* ---- Cards / stats ---------------------------------------------------- */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:26px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm)}
.kpi .k-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.kpi .k-ic{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;color:#fff}
.kpi .k-val{font-size:28px;font-weight:800;letter-spacing:-.02em}
.kpi .k-lab{color:var(--muted);font-size:13.5px;margin-top:2px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);margin-bottom:22px;overflow:hidden}
.panel-head{padding:18px 22px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px}
.panel-head h2{font-size:16px}
.panel-head p{color:var(--muted);font-size:13px;margin-top:3px}
.panel-body{padding:22px}

/* ---- Table ------------------------------------------------------------ */
.table{width:100%;border-collapse:collapse;font-size:14px}
.table th{text-align:left;color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.04em;padding:11px 16px;border-bottom:1px solid var(--line)}
.table td{padding:13px 16px;border-bottom:1px solid var(--line)}
.table tr:last-child td{border-bottom:0}
.table tr:hover td{background:#f8fafc}
.badge{display:inline-flex;align-items:center;gap:5px;font-size:11.5px;font-weight:700;padding:3px 9px;border-radius:999px}
.badge.ok{color:var(--ok);background:rgba(34,197,94,.12)}
.badge.muted{color:var(--muted);background:#f1f5f9}
.badge.brand{color:var(--brand);background:rgba(79,70,229,.1)}
.badge.warn{color:#b45309;background:rgba(217,119,6,.13)}
.badge.danger{color:#b91c1c;background:rgba(220,38,38,.12)}

/* ---- Package editor --------------------------------------------------- */
.pkg-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(330px,1fr));gap:20px;align-items:start}
.pkg-form{background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-sm);overflow:hidden;display:flex;flex-direction:column}
.pkg-form .pf-head{padding:16px 20px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:11px}
.pkg-form .pf-accent{width:12px;height:12px;border-radius:50%;flex:0 0 auto}
.pkg-form .pf-head .nm{font-weight:700;font-size:15px}
.pkg-form .pf-head .sl{color:var(--muted);font-size:12px;margin-left:auto;font-family:ui-monospace,monospace}
.pkg-form .pf-body{padding:20px}
.feat-list{display:flex;flex-direction:column;gap:9px;margin:6px 0 12px}
.feat-row{display:flex;align-items:center;gap:9px}
.feat-row .input{padding:9px 11px;font-size:13.5px}
.feat-row .grip{color:#cbd5e1;flex:0 0 auto;cursor:default}
.feat-row .feat-inc{flex:0 0 auto}
.feat-row .rm{flex:0 0 auto;width:32px;height:32px;border-radius:8px;border:1px solid var(--line);background:#fff;color:var(--muted);cursor:pointer;display:grid;place-items:center}
.feat-row .rm:hover{color:var(--danger);border-color:#fecaca}
.pkg-form .pf-foot{padding:14px 20px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto}
.color-row{display:flex;align-items:center;gap:10px}
.color-row input[type=color]{width:44px;height:40px;padding:3px;border:1px solid var(--line);border-radius:9px;background:#fff;cursor:pointer}

/* ---- Drawer (slide-over form) ---------------------------------------- */
.drawer-ov{position:fixed;inset:0;background:rgba(15,23,42,.45);opacity:0;visibility:hidden;transition:.2s;z-index:80}
.drawer-ov.open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:-560px;width:540px;max-width:94vw;height:100vh;background:#fff;box-shadow:-20px 0 60px -20px rgba(15,23,42,.4);z-index:90;transition:right .28s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column}
.drawer.open{right:0}
.drawer-head{padding:20px 24px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
.drawer-head h2{font-size:17px}
.drawer-head .x{width:34px;height:34px;border-radius:9px;border:1px solid var(--line);background:#fff;cursor:pointer;display:grid;place-items:center;color:var(--muted)}
.drawer-head .x:hover{color:var(--danger);border-color:#fecaca}
.drawer-body{padding:24px;overflow-y:auto;flex:1}
.drawer-foot{padding:16px 24px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:10px}
.form-section-label{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin:18px 0 12px;padding-bottom:6px;border-bottom:1px solid var(--line)}
.form-section-label:first-child{margin-top:0}

/* ---- Filters bar ------------------------------------------------------ */
.filters{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:18px}
.filters .search{position:relative;flex:1;min-width:220px}
.filters .search .si{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:var(--muted)}
.filters .search input{width:100%;padding-left:40px}
.filters select{max-width:190px}
.avatar-sm{width:36px;height:36px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;display:grid;place-items:center;font-weight:700;font-size:13px;flex:0 0 auto}
.pager{display:flex;align-items:center;justify-content:space-between;padding:16px 4px 0;color:var(--muted);font-size:13.5px}
.pager .pages{display:flex;gap:6px}
.pager a,.pager span.cur{display:inline-grid;place-items:center;min-width:34px;height:34px;padding:0 8px;border-radius:9px;border:1px solid var(--line);background:#fff;font-weight:600;font-size:13px;color:var(--ink)}
.pager a:hover{border-color:var(--brand);color:var(--brand)}
.pager span.cur{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ---- Segmented control (attendance status) --------------------------- */
.seg{display:inline-flex;border:1px solid var(--line);border-radius:9px;overflow:hidden;background:#fff}
.seg label{padding:6px 13px;font-size:12.5px;font-weight:600;cursor:pointer;color:var(--muted);border-right:1px solid var(--line);user-select:none;transition:.12s}
.seg label:last-child{border-right:0}
.seg input{position:absolute;opacity:0;width:1px;height:1px}
.seg label:has(input:checked){background:var(--ink);color:#fff}
.seg label.present:has(input:checked){background:#16a34a;color:#fff}
.seg label.absent:has(input:checked){background:#dc2626;color:#fff}
.seg label.late:has(input:checked){background:#d97706;color:#fff}
.seg label.excused:has(input:checked){background:#64748b;color:#fff}
.att-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px solid var(--bg-tint)}
.att-row:last-child{border-bottom:0}
.att-who{display:flex;align-items:center;gap:11px}

/* ---- Toast ------------------------------------------------------------ */
.toast-wrap{position:fixed;bottom:24px;right:24px;display:flex;flex-direction:column;gap:10px;z-index:200}
.toast{background:#0f172a;color:#fff;padding:13px 18px;border-radius:11px;box-shadow:var(--shadow);font-size:14px;display:flex;align-items:center;gap:10px;animation:toastIn .25s ease;max-width:340px}
.toast.ok{background:#15803d}.toast.err{background:#b91c1c}
@keyframes toastIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* Hamburger: hidden on desktop, shown when the sidebar goes off-canvas. */
.nav-toggle{display:none;align-items:center;justify-content:center;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);cursor:pointer;margin-right:6px}
.nav-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.5);z-index:55;opacity:0;visibility:hidden;transition:opacity .2s}
.nav-backdrop.show{opacity:1;visibility:visible}

@media(max-width:860px){
  .shell{grid-template-columns:1fr}
  .sidebar{position:fixed;left:-280px;z-index:60;transition:left .25s;width:256px}
  .sidebar.open{left:0;box-shadow:0 10px 40px rgba(0,0,0,.4)}
  .nav-toggle{display:inline-flex}
  .cards{grid-template-columns:1fr 1fr}
}

/* --- Inline form validation (review §5: field-level, real-time errors) --- */
.input.is-invalid,.field input.is-invalid,.field select.is-invalid,.field textarea.is-invalid{
  border-color:var(--danger)!important;box-shadow:0 0 0 3px rgba(220,38,38,.12)!important}
.input.is-valid,.field input.is-valid,.field select.is-valid,.field textarea.is-valid{border-color:var(--ok)}
.field-error{color:var(--danger);font-size:12.5px;font-weight:500;margin-top:6px}
.field-error:empty{display:none}

/* --- Responsive tables: scroll inside the panel, never the whole page --- */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;max-width:100%}
.table-scroll>.table{min-width:640px}