/* =====================================================
   ระบบบริหารโรงเรียนนาบอน - Main Stylesheet
   ===================================================== */

:root{
    --navy:#1b2a4a;
    --navy-light:#243a63;
    --gold:#c9a44c;
    --bg:#f4f6fb;
    --card-bg:#ffffff;
    --text:#233044;
    --text-muted:#6b7688;
    --border:#e6e9f2;

    /* สีประจำฝ่าย (อิงจากเอกสารต้นฉบับ) */
    --dept-academic:#d63384;      /* ฝ่ายวิชาการ - ชมพูเข้ม */
    --dept-student:#fd7e14;       /* ฝ่ายกิจการนักเรียน - ส้ม */
    --dept-admin:#0dcaf0;         /* ฝ่ายบริหารงานทั่วไป - ฟ้า */
    --dept-personnel:#6f42c1;     /* ฝ่ายบุคคล - ม่วง */
    --dept-budget:#20c997;        /* ฝ่ายงบประมาณ - เขียวมิ้นท์ */

    --success:#198754;
    --warning:#fd7e14;
    --danger:#dc3545;
    --info:#0dcaf0;
    --secondary:#6c757d;
}

*{box-sizing:border-box;}

body{
    margin:0;
    font-family:'Sarabun','Prompt',-apple-system,sans-serif;
    background:var(--bg);
    color:var(--text);
    font-size:15px;
}

a{color:inherit;text-decoration:none;}
img{max-width:100%;}

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

.sidebar{
    width:260px;
    flex-shrink:0;
    background:linear-gradient(180deg,var(--navy) 0%,var(--navy-light) 100%);
    color:#fff;
    padding:20px 0;
    position:sticky;
    top:0;
    height:100vh;
    overflow-y:auto;
}
.sidebar .brand{
    display:flex;align-items:center;gap:10px;
    padding:0 20px 20px;
    border-bottom:1px solid rgba(255,255,255,.12);
    margin-bottom:16px;
}
.sidebar .brand .logo-img{
    width:44px;height:44px;border-radius:10px;object-fit:contain;
    background:#fff;padding:3px;flex-shrink:0;
}
.sidebar .brand .name{font-weight:700;font-size:15px;line-height:1.3;}
.sidebar .brand .name small{display:block;font-weight:400;opacity:.7;font-size:12px;}

.sidebar nav a{
    display:flex;align-items:center;gap:10px;
    padding:11px 20px;color:rgba(255,255,255,.85);
    font-size:14px;border-left:3px solid transparent;
}
.sidebar nav a:hover{background:rgba(255,255,255,.06);color:#fff;}
.sidebar nav a.active{background:rgba(255,255,255,.1);border-left-color:var(--gold);color:#fff;font-weight:600;}
.sidebar nav .section-label{
    padding:16px 20px 6px;font-size:11px;letter-spacing:.5px;
    text-transform:uppercase;color:rgba(255,255,255,.4);
}

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

.topbar{
    background:#fff;border-bottom:1px solid var(--border);
    padding:14px 24px;display:flex;justify-content:space-between;align-items:center;
    position:sticky;top:0;z-index:5;
}
.topbar h1{font-size:18px;margin:0;font-weight:700;}
.topbar .user-chip{
    display:flex;align-items:center;gap:10px;font-size:14px;
}
.topbar .user-chip .avatar{
    width:34px;height:34px;border-radius:50%;
    background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;
    font-weight:700;font-size:14px;
}
.topbar .user-chip .role{color:var(--text-muted);font-size:12px;}
.topbar .logout-link{color:var(--danger);font-size:13px;margin-left:14px;}

.content{padding:24px;}

/* ---------- Login Page ---------- */
.login-wrap{
    min-height:100vh;display:flex;align-items:center;justify-content:center;
    background:linear-gradient(135deg,var(--navy) 0%,#0f1c33 100%);
    padding:20px;
}
.login-card{
    background:#fff;border-radius:16px;padding:40px 36px;width:100%;max-width:400px;
    box-shadow:0 20px 60px rgba(0,0,0,.3);
}
.login-card .logo-img{
    width:88px;height:88px;object-fit:contain;
    display:block;margin:0 auto 16px;
}
.login-card h1{text-align:center;font-size:19px;margin:0 0 4px;}
.login-card p.subtitle{text-align:center;color:var(--text-muted);font-size:13px;margin:0 0 24px;}

.form-group{margin-bottom:16px;}
.form-group label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--text);}
.form-control{
    width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:8px;
    font-family:inherit;font-size:14px;background:#fbfcfe;
}
.form-control:focus{outline:none;border-color:var(--navy);background:#fff;}
textarea.form-control{resize:vertical;min-height:80px;}

.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:6px;
    padding:10px 20px;border-radius:8px;border:none;font-size:14px;font-weight:600;
    cursor:pointer;font-family:inherit;
}
.btn-block{width:100%;}
.btn-primary{background:var(--navy);color:#fff;}
.btn-primary:hover{background:var(--navy-light);}
.btn-gold{background:var(--gold);color:var(--navy);}
.btn-outline{background:#fff;border:1px solid var(--border);color:var(--text);}
.btn-outline:hover{border-color:var(--navy);}
.btn-danger{background:var(--danger);color:#fff;}
.btn-sm{padding:6px 12px;font-size:13px;}

.alert{padding:12px 16px;border-radius:8px;font-size:13px;margin-bottom:16px;}
.alert-danger{background:#fdecea;color:#b3261e;border:1px solid #f6cac6;}
.alert-success{background:#e9f7ef;color:#146c43;border:1px solid #bfe6cf;}
.alert-info{background:#e7f6fb;color:#0a6a80;border:1px solid #bfe7f2;}

/* ---------- Dashboard department cards ---------- */
.dept-grid{
    display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;
}
.dept-card{
    background:var(--card-bg);border-radius:14px;padding:24px;
    border:1px solid var(--border);border-top:4px solid var(--accent,var(--navy));
    transition:transform .15s,box-shadow .15s;
}
.dept-card:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(20,30,60,.08);}
.dept-card .icon{
    width:52px;height:52px;border-radius:12px;background:var(--accent,var(--navy));
    color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:14px;
}
.dept-card h3{margin:0 0 6px;font-size:16px;}
.dept-card p{margin:0 0 14px;font-size:13px;color:var(--text-muted);line-height:1.5;}
.dept-card .count{font-size:12px;color:var(--accent,var(--navy));font-weight:700;}

/* ---------- Module grid (inside each department) ---------- */
.module-grid{
    display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px;
}
.module-card{
    background:var(--card-bg);border:1px solid var(--border);border-radius:12px;
    padding:16px;display:flex;flex-direction:column;gap:8px;position:relative;
}
.module-card.is-active{border-color:var(--accent,var(--navy));}
.module-card .m-icon{
    width:38px;height:38px;border-radius:9px;background:rgba(0,0,0,.04);
    display:flex;align-items:center;justify-content:center;color:var(--accent,var(--navy));font-size:17px;
}
.module-card h4{font-size:13.5px;margin:0;line-height:1.4;font-weight:700;}
.module-card .m-desc{font-size:12px;color:var(--text-muted);line-height:1.5;min-height:36px;}
.module-card .m-status{
    font-size:11px;padding:3px 8px;border-radius:20px;display:inline-block;width:fit-content;
}
.m-status.ready{background:#e9f7ef;color:#146c43;}
.m-status.soon{background:#f1f2f6;color:#7a8296;}
.m-status.disabled{background:#fdecea;color:#b3261e;}
.module-card a.m-link{
    margin-top:auto;font-size:12.5px;font-weight:700;color:var(--accent,var(--navy));
}
.module-card.is-soon{opacity:.72;}

/* ---------- Cards / panels ---------- */
.panel{background:var(--card-bg);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:20px;}
.panel-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;flex-wrap:wrap;gap:10px;}
.panel-header h2{font-size:16px;margin:0;}

.breadcrumb{font-size:13px;color:var(--text-muted);margin-bottom:16px;}
.breadcrumb a{color:var(--navy);font-weight:600;}

/* ---------- Table ---------- */
.table-wrap{overflow-x:auto;}
table.data-table{width:100%;border-collapse:collapse;font-size:13.5px;}
table.data-table th{
    text-align:left;padding:10px 12px;background:#f7f8fc;color:var(--text-muted);
    font-weight:700;font-size:12.5px;border-bottom:2px solid var(--border);white-space:nowrap;
}
table.data-table td{padding:10px 12px;border-bottom:1px solid var(--border);vertical-align:middle;}
table.data-table tr:hover td{background:#fafbff;}

.badge{padding:3px 10px;border-radius:20px;font-size:11.5px;font-weight:700;display:inline-block;}
.badge-success{background:#e9f7ef;color:#146c43;}
.badge-warning{background:#fff4e5;color:#a15c00;}
.badge-danger{background:#fdecea;color:#b3261e;}
.badge-info{background:#e7f6fb;color:#0a6a80;}
.badge-secondary{background:#f1f2f6;color:#5a6273;}

.actions-cell{display:flex;gap:6px;white-space:nowrap;}

.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:16px;}
.toolbar .form-control{width:auto;min-width:180px;}

.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;}

.empty-state{text-align:center;padding:50px 20px;color:var(--text-muted);}
.empty-state .icon{font-size:40px;margin-bottom:10px;}

.pagination{display:flex;gap:6px;margin-top:16px;}
.pagination a,.pagination span{padding:6px 12px;border-radius:6px;border:1px solid var(--border);font-size:13px;}
.pagination a.active{background:var(--navy);color:#fff;border-color:var(--navy);}

.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:20px;}
.stat-box{background:#fff;border:1px solid var(--border);border-radius:12px;padding:16px;}
.stat-box .num{font-size:24px;font-weight:800;color:var(--navy);}
.stat-box .label{font-size:12.5px;color:var(--text-muted);margin-top:2px;}

@media (max-width:900px){
    .sidebar{position:fixed;left:-260px;transition:left .2s;z-index:50;}
    .sidebar.open{left:0;}
    .menu-toggle{display:inline-flex !important;}
}
.menu-toggle{display:none;background:none;border:none;font-size:20px;cursor:pointer;color:var(--navy);}