/* ============================================================
   SMS design system — plain CSS, no build step required.
   Palette and layout match the approved dashboard design.
   ============================================================ */
:root {
    --ink: #1a2332; --ink-2: #5a6a80; --line: #e4e9f0;
    --bg: #f5f7fa; --card: #ffffff;
    --brand: #1f5da0; --brand-dark: #16436f; --accent: #e8f1fa;
    --ok: #2e8b57; --ok-bg: #e3f3ea;
    --warn: #c77700; --warn-bg: #fdf1df;
    --bad: #c0392b; --bad-bg: #fbe8e6;
    --radius: 10px;
}
* { box-sizing: border-box; margin: 0; }
body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    font-size: 15px; color: var(--ink); background: var(--bg);
}

/* ---------- App shell ---------- */
.app-shell { display: flex; min-height: 100vh; }
.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.content { padding: 24px 26px; display: grid; gap: 18px; align-content: start; }

/* ---------- Sidebar ---------- */
.sidebar {
    width: 240px; flex-shrink: 0; display: flex; flex-direction: column;
    background: var(--brand-dark); color: #dbe7f3;
    transition: margin-left .2s ease;
}
.sidebar.collapsed { margin-left: -240px; }
.sidebar-brand {
    padding: 20px 18px; font-weight: 700; color: #fff; font-size: 1.05rem;
    display: flex; gap: 10px; align-items: center;
}
.brand-mark { background: #fff; color: var(--brand-dark); border-radius: 8px; padding: 3px 8px; font-size: .8rem; }
.sidebar-nav { flex: 1; padding: 6px 10px; overflow-y: auto; }
.nav-section {
    font-size: .68rem; text-transform: uppercase; letter-spacing: .08em;
    color: #8fabc9; padding: 14px 10px 4px;
}
.nav-item {
    display: flex; justify-content: space-between; align-items: center;
    color: #dbe7f3; text-decoration: none; padding: 8px 10px;
    border-radius: 7px; font-size: .92rem;
}
.nav-item:hover { background: rgba(255, 255, 255, .08); }
.nav-item.active { background: var(--brand); color: #fff; font-weight: 600; }
.sidebar-footer {
    padding: 14px; border-top: 1px solid rgba(255, 255, 255, .12);
    display: flex; gap: 10px; align-items: center; justify-content: space-between; font-size: .85rem;
}
.user-chip { display: flex; gap: 10px; align-items: center; min-width: 0; }
.avatar {
    width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0;
    background: var(--brand); color: #fff; display: flex; align-items: center;
    justify-content: center; font-weight: 700; text-transform: uppercase;
}
.user-name { font-size: .85rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { color: #8fabc9; font-size: .72rem; }

/* ---------- Top bar ---------- */
.topbar {
    background: var(--card); border-bottom: 1px solid var(--line);
    padding: 14px 26px; display: flex; align-items: center; gap: 16px;
}
.page-title { font-size: 1.15rem; }
.topbar-right { margin-left: auto; }
.term-pill { background: var(--accent); color: var(--brand); border-radius: 20px; padding: 5px 14px; font-size: .8rem; font-weight: 600; }
.icon-btn { background: none; border: none; font-size: 1.1rem; cursor: pointer; color: var(--ink-2); }

/* ---------- Cards & KPIs ---------- */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.card h2 { font-size: .95rem; margin: 18px 0 10px; }
.card h2:first-child { margin-top: 0; }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin: 6px 0 14px; }
.kpi { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.kpi .label { color: var(--ink-2); font-size: .78rem; }
.kpi .value { font-size: 1.55rem; font-weight: 700; margin-top: 4px; }
.kpi .delta { font-size: .75rem; margin-top: 4px; }
.crumbs { font-size: .84rem; color: var(--ink-2); }
.crumbs b { color: var(--brand); }
.year-block { margin-bottom: 22px; }

/* ---------- Tables ---------- */
table { width: 100%; border-collapse: collapse; font-size: .88rem; }
th {
    color: var(--ink-2); text-align: left; font-weight: 600; font-size: .74rem;
    text-transform: uppercase; letter-spacing: .04em; padding: 8px 10px;
    border-bottom: 1px solid var(--line);
}
td { padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
tr[onclick] { cursor: pointer; }
tr[onclick]:hover td { background: var(--accent); }
.actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.bar { background: var(--line); border-radius: 6px; height: 8px; overflow: hidden; min-width: 90px; display: inline-block; vertical-align: middle; }
.bar span { display: block; height: 100%; background: var(--brand); }

/* ---------- Tags & badges ---------- */
.tag { display: inline-block; border-radius: 6px; padding: 2px 8px; font-size: .72rem; font-weight: 600; background: var(--accent); color: var(--brand); }
.tag.ok { background: var(--ok-bg); color: var(--ok); }
.tag.warn { background: var(--warn-bg); color: var(--warn); }
.tag.bad { background: var(--bad-bg); color: var(--bad); }
.badge { background: var(--warn); color: #fff; border-radius: 10px; font-size: .7rem; padding: 1px 7px; }

/* ---------- Buttons & links ---------- */
.btn {
    display: inline-block; background: var(--brand); color: #fff; border: 1px solid var(--brand);
    border-radius: 7px; padding: 7px 15px; font-size: .84rem; font-weight: 600;
    cursor: pointer; text-decoration: none; white-space: nowrap;
}
.btn:hover { background: var(--brand-dark); border-color: var(--brand-dark); }
.btn.ghost { background: transparent; color: var(--brand); }
.btn.ghost:hover { background: var(--accent); }
.btn.danger { background: var(--bad); border-color: var(--bad); }
.btn.danger:hover { filter: brightness(.9); }
.btn-block { display: block; width: 100%; text-align: center; }
.btn-link { background: none; border: none; color: var(--brand); cursor: pointer; font-size: .84rem; padding: 0; text-decoration: underline; }
.btn-link.danger { color: var(--bad); }
.link { color: var(--brand); font-size: .88rem; }

/* ---------- Forms ---------- */
label { display: block; font-size: .82rem; font-weight: 600; color: var(--ink-2); margin: 12px 0 4px; }
input:not([type=checkbox]):not([type=hidden]), select, textarea {
    width: 100%; max-width: 100%; padding: 8px 10px; font-size: .9rem; color: var(--ink);
    border: 1px solid var(--line); border-radius: 7px; background: #fff; font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); border-color: var(--brand); }
input:disabled, select:disabled, input[readonly] { background: var(--bg); color: var(--ink-2); }
.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 14px; }
.toolbar input:not([type=checkbox]), .toolbar select { width: auto; }
.toolbar form { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 4px 16px; }
.form-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 18px; }
.error { color: var(--bad); font-size: .8rem; margin-top: 4px; }
.muted { color: var(--ink-2); }
td input:not([type=checkbox]), td select { padding: 5px 8px; font-size: .85rem; }

/* ---------- Alerts ---------- */
.alert { border-radius: 8px; padding: 10px 14px; font-size: .88rem; margin-bottom: 14px; }
.alert-success { background: var(--ok-bg); color: var(--ok); border: 1px solid #bfe3cf; }
.alert-error { background: var(--bad-bg); color: var(--bad); border: 1px solid #f0c4be; }
.alert ul { margin: 6px 0 0 18px; }

/* ---------- Detail pages ---------- */
.detail-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 12px; }
.detail-grid { display: grid; grid-template-columns: 140px 1fr; gap: 6px 14px; font-size: .9rem; margin: 10px 0 18px; }
.detail-grid dt { color: var(--ink-2); font-size: .8rem; font-weight: 600; padding-top: 2px; }
.detail-grid dd { margin: 0; }
.approval-actions { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-top: 16px; }
.approval-actions form { display: flex; gap: 8px; align-items: center; }
.queue { list-style: none; padding: 0; }
.queue li { display: flex; justify-content: space-between; align-items: center; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: .88rem; }

/* ---------- Collapsibles ---------- */
details { border: 1px dashed var(--line); border-radius: 8px; padding: 10px 14px; margin: 10px 0; }
details summary { cursor: pointer; font-size: .86rem; font-weight: 600; color: var(--brand); }
details[open] summary { margin-bottom: 10px; }
.import-box { background: var(--bg); }
pre { background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 12px 16px; overflow-x: auto; }
code { background: var(--bg); border-radius: 4px; padding: 2px 6px; font-size: .85em; }

/* ---------- Grade-subject matrix ---------- */
.matrix th, .matrix td { text-align: center; }
.matrix td:first-child, .matrix th:first-child { text-align: left; }
.matrix-cell { padding: 2px; }
.cell-btn {
    width: 30px; height: 26px; border: 1px solid var(--line); border-radius: 5px;
    background: #fff; cursor: pointer; font-size: .8rem; color: var(--brand); font-weight: 700;
}
.cell-btn:hover { background: var(--accent); }

/* ---------- Role assignment ---------- */
.role-list { display: grid; gap: 8px; margin: 10px 0; }
.role-option {
    display: flex; gap: 10px; align-items: flex-start; border: 1px solid var(--line);
    border-radius: 8px; padding: 10px 12px; cursor: pointer; font-weight: 400; margin: 0;
}
.role-option:hover { border-color: var(--brand); }
.role-option input { margin-top: 3px; }
.role-option small { display: block; }

/* ---------- Auth pages ---------- */
.auth-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 20px; }
.auth-card {
    background: var(--card); border: 1px solid var(--line); border-radius: 14px;
    padding: 34px 36px; width: 100%; max-width: 420px; box-shadow: 0 10px 30px rgba(22, 67, 111, .08);
}
.auth-card h1 { font-size: 1.15rem; margin-bottom: 14px; display: flex; gap: 10px; align-items: center; }
.auth-card h1 .brand-mark { background: var(--brand-dark); color: #fff; }
.auth-card p { font-size: .88rem; color: var(--ink-2); margin-bottom: 10px; }
.auth-card .btn { margin-top: 16px; }
.auth-card .link { display: inline-block; margin-top: 16px; }

/* ---------- Pagination (Laravel default markup) ---------- */
nav[role=navigation] { font-size: .85rem; margin-top: 14px; }
nav[role=navigation] a, nav[role=navigation] span[aria-current] > span, nav[role=navigation] span[aria-disabled] > span {
    display: inline-block; padding: 5px 11px; border: 1px solid var(--line);
    border-radius: 6px; margin-right: 4px; color: var(--brand); text-decoration: none; background: #fff;
}
nav[role=navigation] span[aria-current] > span { background: var(--brand); color: #fff; border-color: var(--brand); }
nav[role=navigation] span[aria-disabled] > span { color: var(--ink-2); }
nav[role=navigation] svg { width: 14px; height: 14px; vertical-align: -2px; }
nav[role=navigation] p { color: var(--ink-2); margin-top: 6px; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .app-shell { flex-direction: column; }
    .sidebar { width: 100%; }
    .sidebar.collapsed { margin-left: 0; display: none; }
    .detail-grid { grid-template-columns: 1fr; }
}