:root {
  --green: #0f6b4f;
  --green-dark: #0a4d39;
  --green-soft: #e3f1ea;
  --gold: #c99a2e;
  --bg: #f6f7f5;
  --card: #ffffff;
  --text: #1d2521;
  --muted: #66716b;
  --line: #e2e6e3;
  --red: #c0392b;
  --red-soft: #fbe9e7;
  --amber: #b9770e;
  --amber-soft: #fdf2dc;
  --blue: #1f5fa8;
  --blue-soft: #e5eef9;
  --wa: #25d366;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(0,0,0,.05), 0 2px 8px rgba(0,0,0,.04);
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.45; }
a { color: var(--green); }
h1 { font-size: 1.5rem; margin: 0 0 .25rem; }
h2 { font-size: 1.15rem; margin: 0 0 .75rem; }
h3 { font-size: 1rem; margin: 0 0 .5rem; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.center-screen { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.spinner { width: 32px; height: 32px; border: 3px solid var(--green-soft); border-top-color: var(--green); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Layout */
.shell { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.sidebar { background: var(--green-dark); color: #fff; padding: 18px 12px; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.brand { display: flex; gap: 10px; align-items: center; padding: 4px 8px 18px; font-weight: 700; }
.brand img { width: 44px; height: 44px; border-radius: 8px; background: #fff; object-fit: contain; }
.brand small { display: block; font-weight: 400; opacity: .75; font-size: .75rem; }
.nav a { display: flex; gap: 10px; align-items: center; color: #dfeee7; text-decoration: none; padding: 9px 10px; border-radius: 8px; margin-bottom: 2px; }
.nav a:hover { background: rgba(255,255,255,.08); }
.nav a.active { background: rgba(255,255,255,.16); color: #fff; font-weight: 600; }
.nav .ico { width: 20px; text-align: center; }
.sidebar .who { border-top: 1px solid rgba(255,255,255,.15); margin-top: 16px; padding: 12px 10px 0; font-size: .85rem; }
.sidebar .who a { color: #f4d58d; }
.main { padding: 24px 28px 60px; max-width: 1200px; width: 100%; }
.topbar { display: none; }
.page-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }

@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: fixed; inset: 0 30% 0 0; z-index: 30; transform: translateX(-100%); transition: transform .2s; height: 100%; }
  .shell.menu-open .sidebar { transform: none; box-shadow: 0 0 0 100vmax rgba(0,0,0,.35); }
  .topbar { display: flex; align-items: center; gap: 10px; background: var(--green-dark); color: #fff; padding: 10px 16px; position: sticky; top: 0; z-index: 20; }
  .topbar button { background: none; border: 0; color: #fff; font-size: 1.4rem; padding: 0 4px; }
  .main { padding: 16px 16px 60px; }
}

/* Cards & grids */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); margin-bottom: 16px; }
.grid { display: grid; gap: 16px; }
.grid.cols-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); }
.stat .label { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; }
.stat .value { font-size: 1.6rem; font-weight: 700; margin-top: 2px; }
.stat .sub { color: var(--muted); font-size: .85rem; }

/* Forms */
label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: 4px; color: #38433d; }
input, select, textarea { width: 100%; font: inherit; padding: 9px 11px; border: 1px solid #cfd6d2; border-radius: 8px; background: #fff; color: var(--text); }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--green-soft); border-color: var(--green); }
textarea { min-height: 80px; resize: vertical; }
input[type=checkbox] { width: auto; }
.field { margin-bottom: 12px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 0 14px; }
.check { display: flex; align-items: center; gap: 8px; font-weight: 500; }
fieldset { border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px 4px; margin: 0 0 14px; }
legend { font-weight: 700; font-size: .9rem; padding: 0 6px; }
.toolbar { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; margin-bottom: 14px; }
.toolbar .field { margin: 0; min-width: 160px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 6px; justify-content: center; font: inherit; font-weight: 600; padding: 9px 14px; border-radius: 8px; border: 1px solid var(--green); background: var(--green); color: #fff; cursor: pointer; text-decoration: none; white-space: nowrap; }
.btn:hover { background: var(--green-dark); }
.btn.secondary { background: #fff; color: var(--green); }
.btn.secondary:hover { background: var(--green-soft); }
.btn.danger { background: #fff; color: var(--red); border-color: #e6b6b0; }
.btn.danger:hover { background: var(--red-soft); }
.btn.wa { background: var(--wa); border-color: var(--wa); color: #073b1d; }
.btn.wa:hover { background: #1ebe5a; }
.btn.sm { padding: 5px 10px; font-size: .85rem; }
.btn.link { background: none; border: 0; color: var(--green); padding: 0; font-weight: 600; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

/* Tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; background: #fff; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 9px 12px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { background: #f2f5f3; font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: #4f5a54; white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: #fafcfb; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.clickable { cursor: pointer; }

/* Badges */
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: .75rem; font-weight: 700; background: #eef1ef; color: #4f5a54; }
.badge.green { background: var(--green-soft); color: var(--green); }
.badge.red { background: var(--red-soft); color: var(--red); }
.badge.amber { background: var(--amber-soft); color: var(--amber); }
.badge.blue { background: var(--blue-soft); color: var(--blue); }

/* Attendance toggles */
.att { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.att button { border: 0; background: #fff; padding: 7px 11px; font: inherit; font-weight: 700; cursor: pointer; color: var(--muted); border-right: 1px solid var(--line); }
.att button:last-child { border-right: 0; }
.att button.on[data-s=P] { background: var(--green); color: #fff; }
.att button.on[data-s=A] { background: var(--red); color: #fff; }
.att button.on[data-s=L] { background: var(--amber); color: #fff; }
.att button.on[data-s=E] { background: var(--blue); color: #fff; }
.cell { display: inline-block; min-width: 24px; text-align: center; border-radius: 4px; font-weight: 700; font-size: .8rem; padding: 1px 3px; }
.cell.P { background: var(--green-soft); color: var(--green); }
.cell.A { background: var(--red-soft); color: var(--red); }
.cell.L { background: var(--amber-soft); color: var(--amber); }
.cell.E { background: var(--blue-soft); color: var(--blue); }

/* Tabs */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 16px; overflow-x: auto; }
.tabs button { border: 0; background: none; padding: 10px 14px; font: inherit; font-weight: 600; color: var(--muted); border-bottom: 2px solid transparent; cursor: pointer; white-space: nowrap; }
.tabs button.active { color: var(--green); border-bottom-color: var(--green); }

/* Lists */
.list-item { padding: 12px 0; border-bottom: 1px solid var(--line); }
.list-item:last-child { border-bottom: 0; }
.list-item .meta { color: var(--muted); font-size: .8rem; }
.empty { text-align: center; color: var(--muted); padding: 28px 12px; }
.note-text { white-space: pre-wrap; }
.kv { display: grid; grid-template-columns: 140px 1fr; gap: 6px 12px; }
.kv dt { color: var(--muted); font-size: .85rem; }
.kv dd { margin: 0; }
.progress { height: 8px; background: #eef1ef; border-radius: 99px; overflow: hidden; }
.progress > div { height: 100%; background: var(--green); }

/* Modal & toast */
.modal-backdrop { position: fixed; inset: 0; background: rgba(15,25,20,.45); display: grid; place-items: center; z-index: 50; padding: 16px; }
.modal { background: #fff; border-radius: 14px; width: min(640px, 100%); max-height: 92vh; overflow-y: auto; padding: 20px 22px; box-shadow: 0 20px 50px rgba(0,0,0,.25); }
.modal.wide { width: min(900px, 100%); }
.modal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.modal-head button { background: none; border: 0; font-size: 1.5rem; cursor: pointer; color: var(--muted); }
.modal-foot { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }
#toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); z-index: 60; display: grid; gap: 8px; }
.toast { background: #1d2521; color: #fff; padding: 10px 16px; border-radius: 10px; box-shadow: 0 6px 20px rgba(0,0,0,.2); animation: pop .2s; }
.toast.error { background: var(--red); }
@keyframes pop { from { transform: translateY(8px); opacity: 0; } }

/* Login */
.auth-card { width: min(420px, 100%); background: #fff; border-radius: 16px; padding: 28px; box-shadow: 0 10px 40px rgba(0,0,0,.08); border: 1px solid var(--line); }
.auth-card .brand { color: var(--green-dark); padding: 0 0 18px; font-size: 1.2rem; }
.auth-bg { background: linear-gradient(160deg, #0f6b4f 0%, #0a4d39 55%, #f6f7f5 55.1%); }
.error-text { color: var(--red); font-size: .9rem; margin: 8px 0; }

/* Print */
.print-only { display: none; }
@media print {
  .sidebar, .topbar, .no-print, .tabs, #toast { display: none !important; }
  .shell { display: block; }
  .main { padding: 0; max-width: none; }
  .card { box-shadow: none; border: 0; padding: 0; }
  .print-only { display: block; }
  body { background: #fff; font-size: 12px; }
  .modal-backdrop { position: static; background: none; padding: 0; }
  .modal { box-shadow: none; max-height: none; width: 100%; padding: 0; }
  body.printing-modal #app { display: none; }
}

/* Registration form */
.reg-page { min-height: 100vh; padding: 28px 16px 48px; }
.reg-card { max-width: 760px; margin: 0 auto; padding: 24px; }
.reg-brand { color: var(--green-dark); padding: 0 0 14px; font-size: 1.2rem; }
.reg-note { background: var(--amber-soft); border-radius: 10px; padding: 12px 14px; margin: 12px 0 16px; }
.reg-kid { border-bottom: 1px dashed var(--line); margin-bottom: 12px; }
.reg-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* Calendar */
.cal-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 10px; }
.cal { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: #fff; }
.cal .dow { background: #f2f5f3; font-size: .75rem; font-weight: 700; text-transform: uppercase; color: #4f5a54; padding: 6px; text-align: center; }
.cal .day { min-height: 92px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); padding: 4px; font-size: .8rem; }
.cal .day:nth-child(7n+1) { border-left: 0; }
.cal .day.other { background: #fafbfa; color: #aab3ae; }
.cal .day.sat { background: #f6fbf8; }
.cal .day.today .num { background: var(--green); color: #fff; border-radius: 999px; padding: 0 6px; }
.cal .num { font-weight: 700; display: inline-block; margin-bottom: 2px; }
.cal .ev { display: block; width: 100%; text-align: left; border: 0; font: inherit; font-size: .75rem; border-radius: 5px; padding: 2px 5px; margin-top: 2px; cursor: pointer; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; background: var(--blue-soft); color: var(--blue); }
.ev.noschool { background: var(--red-soft); color: var(--red); }
.ev.exam { background: var(--amber-soft); color: var(--amber); }
.ev.event { background: var(--green-soft); color: var(--green); }
.ev-date { min-width: 56px; text-align: center; border-radius: 8px; padding: 4px; font-weight: 700; line-height: 1.1; }
.ev-date small { display: block; font-size: .7rem; font-weight: 600; text-transform: uppercase; }
.banner { border-radius: var(--radius); padding: 12px 16px; margin-bottom: 16px; font-weight: 600; }
.banner.red { background: var(--red-soft); color: var(--red); border: 1px solid #e6b6b0; }
@media (max-width: 640px) { .cal .day { min-height: 64px; } .cal .ev { font-size: 0; height: 6px; padding: 0; } }

/* Report header (grade, teacher, assistant) */
.report-head { display: flex; flex-wrap: wrap; gap: 10px 28px; padding: 12px 14px; margin-bottom: 14px; background: #f6faf8; border: 1px solid var(--line); border-radius: 10px; }
.report-head div { display: flex; flex-direction: column; }
tfoot td { background: #fafbfa; border-top: 1px solid var(--line); }

/* Messages & my notes */
.check-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 4px 12px; }
.check-list { max-height: 240px; overflow-y: auto; border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; }
.check-list .check { padding: 3px 0; }
.mynote-text { max-height: 9.5em; overflow: hidden; }
.mynote:hover { border-color: var(--green); }

/* Dashboard picture: fills the width of its box */
.dash-picture { padding: 12px; }
.dash-picture-frame { min-height: 80px; display: grid; place-items: center; }
.dash-picture-frame img { display: block; width: 100%; height: auto; border-radius: 8px; }
.dash-picture-caption { margin: 10px 4px 0; font-weight: 600; }
.dash-picture-tools { margin-top: 10px; }