:root {
    --teal-900: #0B2A55; --teal-700: #14509E; --teal-500: #1E6FD9; --teal-100: #E6F0FD;
    --mint-bg: #F5F9FE; --gold-500: #FFC738; --gold-600: #E8A800;
    --ink-900: #1B2430; --ink-600: #4C5A6E; --ink-300: #93A0B3; --white: #fff;
    --radius-md: 18px; --radius-sm: 12px;
    --shadow-card: 0 6px 20px rgba(11,79,74,.10);
    --font-display: 'Prompt', 'Sarabun', sans-serif;
    --font-body: 'Sarabun', 'Prompt', sans-serif;
}
* { box-sizing: border-box; }
body { margin:0; font-family: var(--font-body); background: var(--mint-bg); color: var(--ink-900); }
h1,h2,h3,h4 { font-family: var(--font-display); color: var(--teal-900); margin: 0 0 .4em; }
a { color: var(--teal-700); text-decoration: none; }

.admin-shell { display: flex; min-height: 100vh; }

.sidebar {
    width: 250px; background: var(--teal-900); color: rgba(255,255,255,.85); flex-shrink: 0;
    padding: 24px 18px; position: sticky; top: 0; height: 100vh;
}
.sidebar .brand { font-family: var(--font-display); font-weight: 700; color: #fff; font-size: 17px; margin-bottom: 30px; display:block; }
.sidebar nav a {
    display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-radius: 12px;
    color: rgba(255,255,255,.78); font-weight: 600; font-size: 14.5px; margin-bottom: 4px;
}
.sidebar nav a:hover, .sidebar nav a.active { background: rgba(255,255,255,.12); color: #fff; }
.sidebar .logout { margin-top: 30px; display:block; }

.main { flex: 1; padding: 30px 34px; min-width: 0; }
.topbar-row { display:flex; justify-content: space-between; align-items:center; margin-bottom: 26px; flex-wrap: wrap; gap: 12px; }
.topbar-row h1 { font-size: 24px; }

.panel { background: var(--white); border-radius: var(--radius-md); box-shadow: var(--shadow-card); padding: 26px; margin-bottom: 24px; max-width: 100%; overflow-x: auto; }

.btn { display:inline-flex; align-items:center; gap:8px; font-family: var(--font-display); font-weight:600; font-size:14px;
    padding: 11px 22px; border-radius: 999px; border:none; cursor:pointer; text-decoration:none; }
.btn-primary { background: var(--teal-500); color:#fff; }
.btn-primary:hover { background: var(--teal-700); color:#fff; }
.btn-outline { background: var(--teal-100); color: var(--teal-700); }
.btn-outline:hover { background:#d6e8fb; }
.btn-danger { background:#FCEAEA; color:#C0392B; }
.btn-danger:hover { background:#f8d3d3; }
.btn-sm { padding: 7px 16px; font-size:13px; }

table { width:100%; border-collapse: collapse; min-width: 560px; }
th, td { text-align:left; padding: 12px 14px; border-bottom: 1px solid #E4EEFB; font-size: 14.5px; }
th { color: var(--ink-600); font-weight:600; font-size: 13px; text-transform: uppercase; letter-spacing:.03em; }
tr:hover td { background: var(--teal-100); }
.thumb-sm { width:52px; height:52px; border-radius:12px; object-fit:cover; background:var(--teal-100); flex-shrink: 0; }

.badge { display:inline-block; padding: 4px 12px; border-radius: 999px; font-size:12px; font-weight:600; }
.badge-on { background:#E4F7EE; color:#0F7A4E; }
.badge-off { background:#F1F1F1; color:#777; }

.form-row { margin-bottom: 18px; }
.form-row label { display:block; font-weight:600; font-size:14px; margin-bottom:7px; color: var(--teal-900); }
.form-row input, .form-row textarea, .form-row select {
    width:100%; border:1.5px solid #D6E4F5; border-radius:12px; padding:11px 14px;
    font-family: var(--font-body); font-size:14.5px; background: var(--mint-bg);
}
.form-row input:focus, .form-row textarea:focus, .form-row select:focus { outline:none; border-color: var(--teal-500); background:#fff; }
.form-grid { display:grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
.help-text { font-size: 12.5px; color: var(--ink-300); margin-top: 4px; }

.alert { padding: 13px 18px; border-radius: 12px; margin-bottom: 20px; font-size: 14px; font-weight:600; }
.alert-success { background:#E4F7EE; color:#0F7A4E; }
.alert-error { background:#FCEAEA; color:#C0392B; }

.stat-cards { display:grid; grid-template-columns: repeat(4,1fr); gap:18px; margin-bottom: 26px; }
.stat-cards .panel { text-align:center; margin-bottom:0; overflow-x: visible; }
.stat-cards .num { font-family: var(--font-display); font-size: 30px; font-weight:700; color: var(--teal-700); }
.stat-cards .label { color: var(--ink-600); font-size:13.5px; }

.login-wrap { min-height:100vh; display:flex; align-items:center; justify-content:center; background: linear-gradient(135deg, var(--teal-900), var(--teal-500)); padding: 20px; }
.login-card { background:#fff; border-radius: var(--radius-md); box-shadow: 0 20px 50px rgba(0,0,0,.2); padding: 40px 36px; width: 380px; max-width: 100%; }
.login-card h1 { text-align:center; font-size:20px; }
.login-card .sub { text-align:center; color: var(--ink-600); font-size:13.5px; margin-bottom: 24px; }

@media (max-width: 900px) {
    .admin-shell { flex-direction: column; }
    .sidebar { width:100%; height:auto; position:static; padding: 16px; }
    .sidebar nav { display: flex; flex-direction: row; flex-wrap: nowrap; overflow-x: auto; gap: 6px; padding-bottom: 4px; -webkit-overflow-scrolling: touch; }
    .sidebar nav a { white-space: nowrap; margin-bottom: 0; }
    .sidebar .logout { display: inline-block; margin-top: 14px; margin-right: 14px; }
    .form-grid, .stat-cards { grid-template-columns: 1fr 1fr; }
    .main { padding: 22px 16px; }
}
@media (max-width: 560px) {
    .form-grid, .stat-cards { grid-template-columns: 1fr; }
    .topbar-row h1 { font-size: 20px; }
    .panel { padding: 18px; }
    .login-card { padding: 30px 22px; }
}

/* ---------- หน้าต่างปรับตำแหน่ง/ซูมรูปภาพ (แบบ Facebook profile photo) ---------- */
.crop-modal-overlay {
    position: fixed; inset: 0; background: rgba(11,42,85,.6);
    z-index: 999; display: flex; align-items: center; justify-content: center; padding: 20px;
}
.crop-modal {
    background: #fff; border-radius: 20px; padding: 24px;
    width: 100%; max-width: 420px; box-shadow: 0 20px 50px rgba(0,0,0,.25);
}
.crop-modal h3 { margin-bottom: 4px; }
.crop-modal-image-wrap {
    max-height: 360px; height: 320px; overflow: hidden; margin: 14px 0;
    background: #111; border-radius: 12px;
}
.crop-modal-image-wrap img { display: block; max-width: 100%; }
/* ทำให้กรอบครอปของ Cropper.js เป็นวงกลม เพื่อดูตรงกับที่จะแสดงผลจริงบนเว็บไซต์ */
.crop-modal .cropper-view-box,
.crop-modal .cropper-face { border-radius: 50%; }
.crop-modal .cropper-view-box { outline: 1px solid rgba(255,255,255,.75); }
.crop-modal-actions { display: flex; gap: 10px; justify-content: flex-end; }