/* admin.css — หน้าจัดการของครู/เจ้าหน้าที่ (/admin) · ใช้ token ชุดเดียวกับทั้งเว็บ · คอมเป็นหลัก มือถือยังใช้ได้ */

.admin { min-height: 100dvh; }

.admin-top {
    position: sticky; top: 0; z-index: 20;
    background: color-mix(in srgb, var(--paper) 86%, transparent);
    backdrop-filter: saturate(170%) blur(16px);
    -webkit-backdrop-filter: saturate(170%) blur(16px);
    border-bottom: 1px solid var(--line-soft);
    padding-top: env(safe-area-inset-top);
}
.admin-top__inner { max-width: 1180px; margin: 0 auto; padding: 10px 16px 6px; display: flex; align-items: center; gap: 12px; }
.admin-top__who { font-size: .9rem; color: var(--ink-2); max-width: 30vw; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
@media (max-width: 600px) { .admin-top__who { display: none; } }   /* ชื่อชนกับชื่อระบบบนจอแคบ */

/* เมนูแนวนอน — มือถือเลื่อนซ้าย-ขวาได้ */
.admin-nav {
    max-width: 1180px; margin: 0 auto; padding: 0 12px 8px;
    display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none;
}
.admin-nav::-webkit-scrollbar { display: none; }
.admin-nav__link {
    flex: none; display: inline-flex; align-items: center; min-height: 40px; padding: 0 14px; border-radius: 999px;
    color: var(--ink-2); text-decoration: none; font-weight: 500; font-size: .95rem; white-space: nowrap;
    transition: background-color .15s ease, color .15s ease;
}
.admin-nav__link:hover { background: var(--surface-2); color: var(--ink); }
.admin-nav__link.active { background: var(--brand-soft); color: var(--brand); font-weight: 600; }

.admin-main { max-width: 1180px; margin: 0 auto; padding: 22px 16px 64px; outline: none; }

@media (prefers-reduced-transparency: reduce) {
    .admin-top { background: var(--paper); backdrop-filter: none; -webkit-backdrop-filter: none; }
}

/* ── หัวหน้า ─────────────────────────────────────────────── */
.admin-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin: 4px 0 20px; }
.admin-head__text { display: grid; gap: 4px; min-width: 0; }
.admin-head h1 { font-size: 1.8rem; }

.notice {
    display: flex; gap: 10px; align-items: center; padding: 12px 14px; margin-bottom: 16px; border-radius: var(--r-sm);
    background: var(--green-soft); color: var(--green); font-weight: 500;
}
.alert { margin-bottom: 16px; }
.alert__list { margin: 4px 0 0 1.1em; padding: 0; }

/* ── ตัวเลขสรุป ──────────────────────────────────────────── */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin-bottom: 18px; }
.stat {
    display: grid; gap: 2px; padding: 18px; border-radius: 22px; text-decoration: none; color: var(--ink);
    background: var(--surface); border: 1px solid var(--line-soft); box-shadow: var(--shadow-sm);
    transition: border-color .15s ease, transform .1s ease-out;
}
.stat:hover { border-color: var(--brand); }
.stat:active { transform: scale(.985); }
.stat__num { font-family: var(--font-display); font-size: 2.2rem; font-weight: 700; line-height: 1.1; color: var(--brand); font-variant-numeric: tabular-nums; }
.stat--warn .stat__num { color: var(--maroon); }
.stat__label { color: var(--ink-2); font-size: .92rem; }

.admin-grid { display: grid; gap: 16px; }
@media (min-width: 900px) { .admin-grid { grid-template-columns: 1fr 1fr; } }
.checklist { list-style: none; display: grid; gap: 10px; }
.checklist li { display: flex; gap: 10px; align-items: center; color: var(--maroon); }
.checklist li.is-done { color: var(--green); }
.checklist a { color: var(--ink); }

/* ── รายการ (ประกาศ/ปฏิทิน/เบอร์) ────────────────────────── */
.rows { list-style: none; display: grid; gap: 12px; }
.row {
    display: grid; grid-template-columns: auto 1fr auto; gap: 14px; align-items: center;
    background: var(--surface); border: 1px solid var(--line-soft); border-radius: 22px; padding: 16px 18px; box-shadow: var(--shadow-sm);
}
.row:not(:has(.datebox)):not(:has(.row__order)) { grid-template-columns: 1fr auto; }
.row--past { opacity: .7; }
.row__main { display: grid; gap: 4px; min-width: 0; }
.row__meta { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.row__title { font-size: 1.08rem; overflow-wrap: anywhere; }
.row__sub { color: var(--ink-2); font-size: .9rem; }
.row__order {
    display: grid; place-items: center; min-width: 40px; height: 40px; padding: 0 8px; border-radius: 12px;
    background: var(--surface-2); color: var(--ink-2); font-family: var(--font-display); font-weight: 600;
}
.datebox--enroll { background: var(--maroon-soft); color: var(--maroon); }
.pill { display: inline-flex; align-items: center; gap: 4px; border-radius: 999px; padding: 2px 10px; font-size: .82rem; font-weight: 600; white-space: nowrap; background: var(--surface-2); color: var(--ink-2); }
.pill.tone-ok { background: var(--green-soft); color: var(--green); }
.pill.tone-warn { background: var(--maroon-soft); color: var(--maroon); }

@media (max-width: 600px) {
    .row, .row:not(:has(.datebox)):not(:has(.row__order)) { grid-template-columns: 1fr; }
    .row .datebox, .row__order { display: none; }
    .row > .button { justify-self: start; }
}

/* ── ฟอร์ม ─────────────────────────────────────────────── */
.aform {
    display: grid; gap: 18px; max-width: 820px;
    background: var(--surface); border: 1px solid var(--line-soft); border-radius: 24px; padding: 24px 22px; box-shadow: var(--shadow);
}
.aform__grid { display: grid; gap: 14px; }
@media (min-width: 700px) {
    .aform__grid { grid-template-columns: 1fr 1fr; align-items: start; }
    .aform__grid--3 { grid-template-columns: repeat(3, 1fr); }
}
.aform__pin { align-self: end; }
.aform__set { border: 0; margin: 0; padding: 0; min-width: 0; display: grid; gap: 12px; }
.aform__set legend { font-weight: 600; color: var(--brand); padding: 0; margin-bottom: 8px; }
.aform__actions { display: flex; gap: 10px; flex-wrap: wrap; }

.aform .field input:not([type=checkbox]), .aform .field select, .aform .field textarea,
.table--form input:not([type=checkbox]), .filters input:not([type=checkbox]), .filters select {
    font: inherit; font-size: 1rem; min-height: 48px; padding: 0 14px; width: 100%; min-width: 0;
    border-radius: var(--r-sm); border: 1px solid var(--line); background: #fafbfd; color: var(--ink);
    transition: border-color .15s ease, box-shadow .15s ease, background-color .15s ease;
}
.aform .field textarea { padding: 12px 14px; line-height: 1.6; resize: vertical; min-height: 120px; }
.aform .field input:focus, .aform .field select:focus, .aform .field textarea:focus,
.table--form input:not([type=checkbox]):focus, .filters input:not([type=checkbox]):focus, .filters select:focus {
    outline: none; border-color: var(--brand); background: var(--surface); box-shadow: var(--focus);
}
.input-short { max-width: 96px; }

/* ── ลบ ─────────────────────────────────────────────────── */
.danger {
    max-width: 820px; margin-top: 22px; padding: 20px 22px; border-radius: 22px;
    border: 1px solid color-mix(in srgb, var(--maroon) 30%, var(--line)); background: var(--surface);
    display: grid; gap: 8px;
}
.danger__title { color: var(--maroon); font-size: 1.05rem; }
.danger__error { color: var(--maroon); display: flex; gap: 6px; align-items: center; }
.danger__form { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.button--danger { background: var(--maroon); color: #fff; }
.button--danger:hover { background: color-mix(in srgb, var(--maroon) 85%, black); }

/* ── ตัวกรอง + ตาราง ────────────────────────────────────── */
.filters {
    display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; margin-bottom: 16px;
    background: var(--surface); border: 1px solid var(--line-soft); border-radius: 22px; padding: 16px 18px; box-shadow: var(--shadow-sm);
}
.filters__field { display: grid; gap: 4px; font-weight: 500; font-size: .9rem; }
.filters__field--grow { flex: 1 1 220px; }
.filters .check { min-height: 48px; font-size: .92rem; }
.check input[type=checkbox] { width: 22px; height: 22px; flex: none; accent-color: var(--brand); }
.result-count { margin: 0 4px 8px; }

.table-wrap { background: var(--surface); border: 1px solid var(--line-soft); border-radius: 22px; box-shadow: var(--shadow-sm); overflow: hidden; }
.table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.table th { text-align: left; font-weight: 600; color: var(--ink-2); font-size: .82rem; letter-spacing: .02em; padding: 12px 14px; background: var(--surface-2); }
.table td { padding: 12px 14px; border-top: 1px solid var(--line-soft); vertical-align: top; }
.table tbody tr:hover td { background: color-mix(in srgb, var(--brand-soft) 45%, transparent); }
.table .num { font-family: var(--font-display); font-variant-numeric: tabular-nums; letter-spacing: .04em; white-space: nowrap; }
.table .missing { display: block; color: var(--maroon); font-size: .85rem; margin-top: 4px; }

/* มือถือ: ตารางกลายเป็นการ์ดทีละคน (ป้ายหัวคอลัมน์มาจาก data-label) */
@media (max-width: 760px) {
    .table thead { display: none; }
    .table, .table tbody, .table tr, .table td { display: block; width: 100%; }
    .table tr { padding: 10px 0; border-top: 1px solid var(--line-soft); }
    .table tr:first-child { border-top: 0; }
    .table td { border: 0; padding: 4px 16px; display: grid; grid-template-columns: 96px 1fr; gap: 8px; }
    .table td::before { content: attr(data-label); color: var(--ink-2); font-size: .8rem; padding-top: 2px; }
    .table tbody tr:hover td { background: transparent; }
}

@media (prefers-contrast: more) {
    .row, .stat, .aform, .table-wrap, .filters, .danger { border-width: 2px; }
}
@media print {
    .admin-top, .filters, .aform__actions, .danger { display: none !important; }
}