/* MAPS — Mater Academy Private Scheduler
   Modern refresh of the original Mater green/gold theme:
   sidebar app-shell, cards, sticky table headers, responsive. */

:root{
  --green-900:#07341f;
  --green-700:#0b5d3b;
  --green-600:#0e7048;
  --green-50:#eef6f1;
  --gold:#d4af37;
  --gold-dark:#a8862a;
  --ink:#152018;
  --muted:#5f7166;
  --border:#dbe4de;
  --border-soft:#eaf0ec;
  --surface:#ffffff;
  --bg:#f4f7f5;
  --red:#b3261e;
  --red-bg:#fdecea;
  --orange:#a15a00;
  --orange-bg:#fff4e5;
  --ok:#1e7d4c;
  --ok-bg:#e8f7ef;
  --radius:12px;
  --radius-sm:8px;
  --shadow-sm:0 1px 2px rgba(15,35,25,.06);
  --shadow-md:0 6px 20px rgba(10,40,25,.08);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--green-700)}
button, input, select{font:inherit}

/* ---------- App shell ---------- */
.app-shell{display:flex;min-height:100vh}

.sidebar{
  width:240px;
  flex-shrink:0;
  background:linear-gradient(180deg,var(--green-900),var(--green-700));
  color:#fff;
  display:flex;
  flex-direction:column;
  position:sticky;
  top:0;
  height:100vh;
}
.sidebar-brand{
  padding:22px 20px 16px;
  display:flex;
  align-items:center;
  gap:10px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.brand-mark{
  width:36px;height:36px;border-radius:9px;
  background:var(--gold);
  color:var(--green-900);
  font-weight:800;font-size:14px;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:.5px;
  flex-shrink:0;
}
.brand-mark-img{
  width:38px;height:38px;border-radius:9px;
  flex-shrink:0;object-fit:contain;
  box-shadow:0 1px 3px rgba(0,0,0,.25);
}
.login-logo{
  width:64px;height:64px;border-radius:16px;
  display:block;margin:0 auto 14px;
  box-shadow:0 4px 14px rgba(0,0,0,.2);
}
.brand-text{line-height:1.2}
.brand-text strong{display:block;font-size:15px;letter-spacing:.3px}
.brand-text span{display:block;font-size:11px;color:rgba(255,255,255,.65)}

.nav{flex:1;padding:14px 10px;overflow-y:auto}
.nav a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;margin-bottom:2px;
  border-radius:9px;
  color:rgba(255,255,255,.82);
  text-decoration:none;
  font-size:14px;font-weight:600;
  transition:background .12s ease;
}
.nav a:hover{background:rgba(255,255,255,.08);color:#fff}
.nav a.active{background:rgba(255,255,255,.16);color:#fff}
.nav .icon{width:18px;text-align:center;flex-shrink:0;font-size:15px}
.nav-section{
  font-size:10.5px;text-transform:uppercase;letter-spacing:.08em;
  color:rgba(255,255,255,.45);
  padding:14px 12px 6px;font-weight:700;
}

.sidebar-foot{
  padding:14px 16px 18px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:12.5px;
  color:rgba(255,255,255,.7);
}
.sidebar-foot .who{color:#fff;font-weight:700;display:block;margin-bottom:2px}
.sidebar-foot a{color:rgba(255,255,255,.75);font-size:12px}

.main{flex:1;min-width:0;display:flex;flex-direction:column}

.topbar{
  background:var(--surface);
  border-bottom:1px solid var(--border);
  padding:14px 26px;
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;
  position:sticky;top:0;z-index:5;
}
.topbar h1{font-size:19px;margin:0;color:var(--green-900)}
.topbar .sub{font-size:12.5px;color:var(--muted);margin-top:2px}
.menu-btn{display:none;background:none;border:0;font-size:20px;color:var(--green-900);cursor:pointer;padding:4px 8px}

.content{padding:22px 26px 40px;max-width:1240px;width:100%;margin:0 auto}

.flash{
  border-radius:var(--radius-sm);
  padding:11px 14px;margin-bottom:16px;
  font-size:13.5px;font-weight:600;
}
.flash.success{background:var(--ok-bg);color:var(--ok);border:1px solid #c7ecd8}
.flash.error{background:var(--red-bg);color:var(--red);border:1px solid #f5c9c5}

/* ---------- Cards / summary ---------- */
.summary-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));
  gap:14px;margin-bottom:20px;
}
.metric-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:16px 18px;
  box-shadow:var(--shadow-sm);
}
.metric-card .label{font-size:12.5px;color:var(--muted);font-weight:600}
.metric-card strong{display:block;font-size:26px;color:var(--green-700);margin-top:4px}
.metric-card.warn strong{color:var(--orange)}
.metric-card.danger strong{color:var(--red)}

.card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:20px;margin-bottom:18px;
  box-shadow:var(--shadow-sm);
}
.card h2{margin:0 0 4px;font-size:16px;color:var(--green-900)}
.card .card-desc{font-size:13px;color:var(--muted);margin:0 0 14px}

/* ---------- Forms / toolbar ---------- */
.toolbar{display:flex;gap:12px;flex-wrap:wrap;align-items:end;margin-bottom:14px}
.field{display:flex;flex-direction:column;gap:5px;min-width:200px;flex:1}
.field.small{min-width:140px;flex:0 0 160px}
.field label{font-size:12px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.03em}
input[type=text],input[type=search],input[type=date],input[type=password],input[type=email],select,textarea{
  border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:9px 11px;background:#fff;color:var(--ink);width:100%;
}
input:focus,select:focus,textarea:focus{outline:2px solid var(--green-600);outline-offset:1px}

.btn{
  display:inline-flex;align-items:center;gap:6px;
  border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:9px 15px;background:#fff;color:var(--green-700);
  font-weight:700;font-size:13.5px;cursor:pointer;text-decoration:none;
  transition:background .12s ease, box-shadow .12s ease;
}
.btn:hover{background:var(--green-50)}
.btn.primary{background:var(--green-700);border-color:var(--green-700);color:#fff}
.btn.primary:hover{background:var(--green-600)}
.btn.gold{background:var(--gold);border-color:var(--gold);color:var(--green-900)}
.btn.gold:hover{background:#e2c25c}
.btn.danger{border-color:#e3b3b0;color:var(--red)}
.btn.danger:hover{background:var(--red-bg)}
.btn.sm{padding:6px 11px;font-size:12.5px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.actions{display:flex;gap:8px;flex-wrap:wrap}

/* ---------- Tables ---------- */
.table-wrap{overflow-x:auto;border-radius:var(--radius-sm);border:1px solid var(--border)}
table{width:100%;border-collapse:collapse;background:#fff;font-size:13.5px}
thead th{
  background:var(--green-700);color:#fff;text-align:left;
  padding:10px 12px;font-size:12.5px;letter-spacing:.02em;
  position:sticky;top:0;
}
tbody td{padding:8px 12px;border-bottom:1px solid var(--border-soft);vertical-align:middle}
tbody tr:hover{background:var(--green-50)}
td input,td select{border:1px solid transparent;background:transparent;padding:5px 6px;border-radius:6px}
td input:hover,td select:hover{border-color:var(--border)}
td input:focus,td select:focus{border-color:var(--green-600);background:#fff}
td.col-period input{max-width:56px;text-align:center;font-weight:700}

.badge{display:inline-block;padding:3px 9px;border-radius:99px;font-size:11.5px;font-weight:700;letter-spacing:.02em}
.badge.admin{background:#efe3ff;color:#6a3fd6}
.badge.registrar{background:var(--green-50);color:var(--green-700)}
.badge.teacher{background:var(--orange-bg);color:var(--orange)}
.badge.inactive{background:#eee;color:#888}

/* ---------- Search picker ---------- */
.picker{position:relative}
.picker-panel{
  position:absolute;top:calc(100% + 4px);left:0;right:0;z-index:10;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);
  box-shadow:var(--shadow-md);max-height:320px;overflow-y:auto;
}
.picker-item{
  display:flex;flex-direction:column;gap:1px;
  padding:9px 12px;text-decoration:none;color:var(--ink);
  border-bottom:1px solid var(--border-soft);font-size:13.5px;
}
.picker-item:last-child{border-bottom:0}
.picker-item:hover{background:var(--green-50)}
.picker-item span{font-size:11.5px;color:var(--muted)}

/* ---------- Meta strip ---------- */
.meta-strip{display:flex;gap:22px;flex-wrap:wrap;font-size:13.5px;margin:4px 0 16px;color:var(--muted)}
.meta-strip b{color:var(--green-700)}

/* ---------- Teacher roster ---------- */
.period-block{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:14px 16px 8px;margin:14px 0;box-shadow:var(--shadow-sm);
}
.period-head{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding-bottom:10px;margin-bottom:4px;border-bottom:1px solid var(--border-soft);
  cursor:pointer;user-select:none;
}
.period-head:hover .period-course{color:var(--green-700)}
.period-chevron{
  margin-left:auto;flex-shrink:0;color:var(--muted);
  transition:transform .15s ease;
}
.period-block.collapsed .period-chevron{transform:rotate(-90deg)}
.period-block.collapsed .roster-mini{display:none}
.period-block.collapsed{padding-bottom:14px}
.period-block.collapsed .period-head{padding-bottom:0;margin-bottom:0;border-bottom:0}
.period-pill{
  background:var(--green-700);color:#fff;font-weight:800;font-size:11.5px;
  letter-spacing:.02em;padding:4px 11px;border-radius:99px;flex-shrink:0;white-space:nowrap;
}
.period-course{font-weight:700;color:var(--green-900);font-size:14.5px;flex:1;min-width:140px}
.period-room{
  font-size:11px;font-weight:700;color:var(--muted);letter-spacing:.02em;
  background:var(--border-soft);padding:4px 10px;border-radius:99px;white-space:nowrap;
}

table.roster-mini{width:100%;border-collapse:collapse;font-size:13px;margin:2px 0 8px}
table.roster-mini th{
  position:static;text-align:left;background:var(--green-700);color:#fff;
  font-weight:700;font-size:11.5px;text-transform:uppercase;letter-spacing:.03em;
  padding:7px 9px;border-bottom:0;
}
table.roster-mini td{padding:6px 8px;border-bottom:1px solid var(--border-soft)}
table.roster-mini tbody tr:last-child td{border-bottom:0}
table.roster-mini tbody tr:hover td{background:var(--green-50)}
table.roster-mini td.num{color:var(--muted);width:26px}
table.roster-mini td.id{color:var(--muted);font-variant-numeric:tabular-nums}
table.roster-mini td.grade{color:var(--muted);width:56px}

/* ---------- Audit ---------- */
.issue{border:1px solid #ecd9b8;background:var(--orange-bg);border-radius:9px;padding:10px 12px;margin:8px 0;font-size:13.5px}
.issue.error{border-color:#f2c3bf;background:var(--red-bg)}
.issue .who{font-weight:700}
.issue .detail{color:var(--muted);font-size:12.5px;display:block;margin-top:2px}
.issue.ok{border-color:#bfe6cf;background:var(--ok-bg)}

/* ---------- Login ---------- */
.login-wrap{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(circle at 20% 20%,#0e7048,#07341f 65%);
  padding:20px;
}
.login-card{
  background:#fff;border-radius:16px;padding:34px 32px;width:100%;max-width:380px;
  box-shadow:0 20px 50px rgba(0,0,0,.25);
}
.login-card .brand-mark{margin:0 auto 14px}
.login-card h1{text-align:center;font-size:19px;color:var(--green-900);margin:0 0 2px}
.login-card p.sub{text-align:center;color:var(--muted);font-size:13px;margin:0 0 22px}
.login-card .field{margin-bottom:14px}
.login-card .btn{width:100%;justify-content:center;padding:11px}

/* ---------- Students split-view ---------- */
.split-filters{
  display:flex;gap:14px;flex-wrap:wrap;align-items:end;margin-bottom:16px;
}
.split-search{position:relative;display:flex;align-items:center}
.split-search .search-icon{
  position:absolute;left:10px;color:var(--muted);pointer-events:none;
}
.split-search input{padding-left:32px}

.split-workspace{
  display:grid;grid-template-columns:300px 1fr;gap:18px;align-items:start;
}
.split-sidebar{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  display:flex;flex-direction:column;
  height:calc(100vh - 220px);min-height:420px;
  overflow:hidden;
}
.split-count{
  padding:12px 16px;font-size:12px;font-weight:700;color:var(--muted);
  text-transform:uppercase;letter-spacing:.04em;
  border-bottom:1px solid var(--border-soft);flex-shrink:0;
}
.split-list{overflow-y:auto;flex:1;padding:8px}
.split-list .empty-state{padding:30px 14px;font-size:13px}

.student-card{
  display:block;width:100%;text-align:left;
  background:transparent;border:1px solid transparent;border-radius:var(--radius-sm);
  padding:10px 12px;margin-bottom:4px;cursor:pointer;
  font-family:inherit;color:var(--ink);
  transition:background .12s ease,border-color .12s ease;
}
.student-card:hover{background:var(--green-50)}
.student-card.active{
  background:var(--green-50);border-color:var(--green-600);
  box-shadow:inset 3px 0 0 var(--gold);
}
.student-card-head{display:flex;align-items:center;justify-content:space-between;gap:8px}
.student-card-head strong{font-size:13.5px;color:var(--green-900)}
.student-card .flag-row{margin-top:6px}

.split-main{min-height:calc(100vh - 220px)}
.split-main .empty-state{
  display:flex;align-items:center;justify-content:center;height:100%;min-height:380px;
}

.profile-head{
  display:flex;align-items:flex-start;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding-bottom:14px;border-bottom:1px solid var(--border-soft);margin-bottom:6px;
}

.flag-row{display:flex;flex-wrap:wrap;gap:6px}
.flag-badge{
  display:inline-block;padding:4px 10px;border-radius:99px;
  font-size:11.5px;font-weight:700;letter-spacing:.01em;
}
.flag-badge.alert{background:var(--red-bg);color:var(--red)}
.flag-badge.info{background:var(--orange-bg);color:var(--orange)}
.flag-badge.ok{background:var(--ok-bg);color:var(--ok)}
.flag-badge.more{background:var(--border-soft);color:var(--muted)}

.save-status{font-size:13px;color:var(--ok);font-weight:600;align-self:center}

@media(max-width:900px){
  .split-workspace{grid-template-columns:1fr}
  .split-sidebar{height:auto;max-height:320px;min-height:0}
  .split-main{min-height:0}
  .split-main .empty-state{min-height:160px}
}

/* ---------- Misc ---------- */
.hidden{display:none!important}
.text-muted{color:var(--muted)}
.help-text{font-size:12px;color:var(--muted);margin-top:4px}
.empty-state{text-align:center;color:var(--muted);padding:40px 20px;font-size:14px}
.divider{height:1px;background:var(--border);margin:18px 0}

@media(max-width:900px){
  .sidebar{position:fixed;left:-260px;top:0;z-index:20;transition:left .18s ease;box-shadow:var(--shadow-md)}
  .sidebar.open{left:0}
  .menu-btn{display:inline-block}
  .content{padding:16px}
  .topbar{padding:12px 16px}
}

/* ---------- Print ---------- */
.print-sheet{display:none}
@media print{
  body{background:#fff}
  .app-shell>*:not(.print-region){display:none!important}
  .print-sheet{display:block!important}
  .print-sheet .print-page{page-break-after:always;padding:.35in .45in}
  .print-sheet .print-page:last-child{page-break-after:auto}
  .print-title{text-align:center;color:var(--green-700);font-size:20px;font-weight:800}
  .print-sub{text-align:center;font-size:14px;margin-top:4px}
  .print-date{text-align:center;font-size:11px;color:#555;margin:4px 0 16px}
  .print-sheet table{font-size:10.5pt}
  .print-sheet th{background:var(--green-700)!important;color:#fff!important;-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .print-sheet td,.print-sheet th{padding:7px;border:1px solid #ccc}
  .print-sheet .period-block{break-inside:avoid;box-shadow:none;border-color:#ccc}
  .print-sheet .period-pill{background:var(--green-700)!important;color:#fff!important;-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .print-sheet .period-room{background:#eee!important;-webkit-print-color-adjust:exact;print-color-adjust:exact}
  @page{size:letter;margin:.35in}
}