/* ============================================================
   BIG DATA EDU — Modern Dashboard Stylesheet
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Sarabun:wght@300;400;500;600;700&family=Prompt:wght@400;500;600;700&display=swap');

:root{
  --bg:#f5f3ff; --card:#ffffff; --ink:#2e1065; --muted:#7c6f9b;
  --primary:#6d28d9; --primary-d:#5b21b6; --accent:#a855f7;
  --green:#16a34a; --amber:#f59e0b; --red:#dc2626; --purple:#7c3aed; --teal:#0d9488;
  --line:#ede9fe; --line2:#e7e0f5; --radius:16px;
  --sidebar:#4c1d95; --sidebar-2:#2e1065;
  --shadow:0 1px 3px rgba(76,29,149,.10), 0 8px 24px rgba(76,29,149,.10);
  --grad:linear-gradient(135deg,#6d28d9 0%,#a855f7 100%);
  --grad2:linear-gradient(135deg,#7c3aed 0%,#db2777 100%);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Sarabun','Prompt',system-ui,sans-serif;background:var(--bg);
  color:var(--ink);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1280px;margin:0 auto;padding:0 20px}

/* ---------- Topbar (front) ---------- */
.topbar{background:var(--grad);color:#fff;box-shadow:var(--shadow);position:sticky;top:0;z-index:50}
.topbar .container{display:flex;align-items:center;gap:18px;height:64px}
.topbar .logo{font-family:'Prompt';font-weight:700;font-size:22px;display:flex;align-items:center;gap:10px}
.topbar .logo .badge{background:rgba(255,255,255,.2);border-radius:10px;padding:4px 10px}
.topbar nav{margin-left:auto;display:flex;gap:6px;flex-wrap:wrap}
.topbar nav a{color:#fff;padding:8px 14px;border-radius:10px;font-size:15px;transition:.2s}
.topbar nav a:hover{background:rgba(255,255,255,.18);text-decoration:none}
.topbar .org{font-size:13px;opacity:.9;font-weight:300}
.topbar nav a.cur{background:rgba(255,255,255,.25)}
/* dropdown */
.navdrop{position:relative}
.navdrop>a{display:inline-block}
.navmenu{position:absolute;top:100%;left:0;min-width:250px;background:#fff;border-radius:12px;
  box-shadow:0 16px 40px rgba(15,23,42,.18);padding:8px;opacity:0;visibility:hidden;
  transform:translateY(8px);transition:.18s;z-index:60}
.navdrop:hover .navmenu{opacity:1;visibility:visible;transform:translateY(0)}
.navmenu a{display:block;color:#1e293b!important;padding:9px 14px;border-radius:8px;font-size:14px}
.navmenu a:hover{background:#eff6ff;color:#1d4ed8!important;text-decoration:none}
.report-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* ============ FRONT — เมนูซ้าย (sidebar) ธีมม่วง ============ */
.site{display:flex;min-height:100vh}
.site-side{width:272px;flex-shrink:0;background:linear-gradient(180deg,var(--sidebar) 0%,var(--sidebar-2) 100%);
  color:#e9d5ff;position:sticky;top:0;height:100vh;overflow-y:auto;box-shadow:2px 0 20px rgba(76,29,149,.18)}
.site-side::-webkit-scrollbar{width:8px}
.site-side::-webkit-scrollbar-thumb{background:#7c3aed66;border-radius:8px}
.side-brand{display:flex;align-items:center;gap:10px;padding:22px 20px;font-family:'Prompt';
  font-weight:700;font-size:22px;color:#fff;border-bottom:1px solid #ffffff1a}
.side-brand .badge{background:#ffffff22;border-radius:10px;padding:4px 10px}
.side-brand:hover{text-decoration:none}
.side-org{padding:12px 20px;font-size:12px;color:#c4b5fd;line-height:1.4;border-bottom:1px solid #ffffff14}
.side-nav{padding:10px 0 30px}
.side-link{display:flex;align-items:center;gap:12px;padding:12px 20px;color:#ddd6fe;font-size:15px;transition:.15s}
.side-link:hover{background:#ffffff14;color:#fff;text-decoration:none}
.side-link.cur{background:#ffffff22;color:#fff;border-left:3px solid var(--accent)}
/* dropdown แบบ <details> */
.side-nav details{border-bottom:1px solid #ffffff10}
.side-nav summary{display:flex;align-items:center;gap:12px;padding:12px 20px;cursor:pointer;
  list-style:none;color:#ede9fe;font-size:15px;font-weight:500;transition:.15s}
.side-nav summary::-webkit-details-marker{display:none}
.side-nav summary::after{content:'▾';margin-left:auto;font-size:12px;opacity:.7;transition:.2s}
.side-nav details[open] summary::after{transform:rotate(180deg)}
.side-nav summary:hover{background:#ffffff14;color:#fff}
.side-nav details[open] summary{background:#ffffff10;color:#fff}
.side-sub{padding:4px 0 8px}
.side-sub a{display:block;padding:9px 20px 9px 48px;color:#c4b5fd;font-size:14px;transition:.12s}
.side-sub a:hover{background:#ffffff1a;color:#fff;text-decoration:none}
.side-sub a.cur{color:#fff;background:#ffffff14;border-left:3px solid var(--accent)}
.side-login{margin:14px 16px 0;display:block;text-align:center;background:#ffffff1f;color:#fff!important;
  padding:11px;border-radius:12px;font-weight:500}
.side-login:hover{background:#ffffff33;text-decoration:none}

.site-main{flex:1;min-width:0;display:flex;flex-direction:column}
.site-top{display:none;align-items:center;gap:12px;background:#fff;padding:12px 18px;
  border-bottom:1px solid var(--line2);position:sticky;top:0;z-index:30}
.site-top .ham{font-size:24px;background:none;border:none;color:var(--primary);cursor:pointer}
.site-top .tt{font-family:'Prompt';font-weight:600;color:var(--primary)}
.site-main .container{width:100%;max-width:1200px}

@media(max-width:860px){
  .site{flex-direction:column}
  .site-side{position:fixed;left:0;top:0;bottom:0;z-index:80;transform:translateX(-100%);transition:.25s;width:280px;height:100vh}
  .site.open .site-side{transform:translateX(0)}
  .site-top{display:flex}
  .site-backdrop{display:none;position:fixed;inset:0;background:rgba(46,16,101,.45);z-index:70}
  .site.open .site-backdrop{display:block}
}
@media(max-width:860px){.navmenu{position:static;opacity:1;visibility:visible;transform:none;
  box-shadow:none;min-width:auto;background:rgba(255,255,255,.08);margin:4px 0}
  .navmenu a{color:#fff!important}.navdrop:hover .navmenu{}}

/* ---------- Page header ---------- */
.page-head{padding:28px 0 8px}
.page-head h1{font-family:'Prompt';font-size:26px;font-weight:600}
.page-head p{color:var(--muted)}
.year-pills{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.year-pills a{background:#fff;border:1px solid var(--line);padding:6px 14px;border-radius:999px;
  font-size:14px;color:var(--muted)}
.year-pills a.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ---------- Stat cards ---------- */
.grid{display:grid;gap:18px}
.grid-5{grid-template-columns:repeat(5,1fr);gap:12px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
/* การ์ดสรุปแบบกะทัดรัด (5 ใบเรียงแถวเดียว) */
.grid-5 .stat{padding:15px}
.grid-5 .stat .ico{width:38px;height:38px;font-size:19px;border-radius:11px;margin-bottom:9px}
.grid-5 .stat .num{font-size:25px}
.grid-5 .stat .lbl{font-size:13px}
.grid-5 .stat .sub{font-size:11px;margin-top:5px}
@media(max-width:820px){.grid-5{grid-template-columns:repeat(3,1fr)}}
@media(max-width:980px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:1fr}}
@media(max-width:560px){.grid-5{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.grid-4,.grid-2{grid-template-columns:1fr}}

.stat{background:var(--card);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);
  position:relative;overflow:hidden;border:1px solid var(--line)}
.stat .ico{width:48px;height:48px;border-radius:14px;display:flex;align-items:center;
  justify-content:center;font-size:24px;color:#fff;margin-bottom:14px}
.stat .num{font-family:'Prompt';font-size:34px;font-weight:700;line-height:1}
.stat .lbl{color:var(--muted);font-size:15px;margin-top:6px}
.stat .sub{font-size:13px;margin-top:8px}
.stat .sub.up{color:var(--green)} .stat .sub.down{color:var(--red)}
.ico.blue{background:var(--grad)} .ico.green{background:linear-gradient(135deg,#16a34a,#4ade80)}
.ico.amber{background:linear-gradient(135deg,#f59e0b,#fbbf24)}
.ico.purple{background:var(--grad2)} .ico.teal{background:linear-gradient(135deg,#0d9488,#2dd4bf)}
.ico.red{background:linear-gradient(135deg,#dc2626,#f87171)}

/* ---------- Panels / charts ---------- */
.panel{background:var(--card);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);
  border:1px solid var(--line);margin-bottom:18px}
.panel h3{font-family:'Prompt';font-size:17px;font-weight:600;margin-bottom:16px;
  display:flex;align-items:center;gap:8px}
.panel h3 .dot{width:10px;height:10px;border-radius:50%;background:var(--primary)}
.chart-box{position:relative;height:300px}
.mt{margin-top:18px}.section{margin:26px 0}

/* ---------- Tables ---------- */
.table-wrap{overflow-x:auto;border-radius:12px;border:1px solid var(--line)}
table.data{width:100%;border-collapse:collapse;background:#fff;font-size:14px}
table.data th,table.data td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line)}
table.data thead th{background:#f8fafc;color:var(--muted);font-weight:600;
  position:sticky;top:0;white-space:nowrap}
table.data tbody tr:hover{background:#f8fafc}
table.data td.num,table.data th.num{text-align:right;font-variant-numeric:tabular-nums}
.empty{padding:40px;text-align:center;color:var(--muted)}

/* ---------- Badges / buttons ---------- */
.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:500}
.badge.b-small{background:#dbeafe;color:#1d4ed8}.badge.b-mid{background:#dcfce7;color:#15803d}
.badge.b-big{background:#fef3c7;color:#b45309}.badge.b-xl{background:#fce7f3;color:#be185d}
.badge.b-gray{background:#e2e8f0;color:#475569}
.btn{display:inline-flex;align-items:center;gap:6px;border:none;cursor:pointer;
  padding:9px 16px;border-radius:10px;font-family:inherit;font-size:14px;font-weight:500;transition:.15s}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-d)}
.btn-green{background:var(--green);color:#fff}.btn-danger{background:var(--red);color:#fff}
.btn-ghost{background:#f1f5f9;color:var(--ink)}.btn-sm{padding:6px 12px;font-size:13px}
.btn-block{width:100%;justify-content:center}

/* ---------- Login ---------- */
.login-page{background:var(--grad);display:flex;min-height:100vh;align-items:center;justify-content:center;padding:20px}
.login-card{background:#fff;border-radius:22px;padding:40px;width:100%;max-width:400px;
  box-shadow:0 30px 70px rgba(0,0,0,.3)}
.login-brand{text-align:center;margin-bottom:26px}
.login-logo{font-size:46px}.login-brand h1{font-family:'Prompt';font-size:30px;color:var(--primary)}
.login-brand p{color:var(--muted);font-size:13px;margin-top:4px}
.login-card label{display:block;font-size:14px;font-weight:500;margin:14px 0 6px}
.login-card input{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:12px;
  font-family:inherit;font-size:15px;transition:.15s}
.login-card input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.15)}
.login-card .btn{margin-top:22px}
.login-back{display:block;text-align:center;margin-top:18px;color:var(--muted);font-size:14px}
.alert{padding:12px 16px;border-radius:12px;font-size:14px;margin-bottom:8px}
.alert-danger{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}
.alert-success{background:#f0fdf4;color:#15803d;border:1px solid #bbf7d0}

/* ============================================================
   ADMIN
   ============================================================ */
.admin{display:flex;min-height:100vh}
.sidebar{width:260px;background:#0f172a;color:#cbd5e1;flex-shrink:0;position:sticky;top:0;
  height:100vh;overflow-y:auto}
.sidebar .brand{padding:22px 22px;font-family:'Prompt';font-weight:700;font-size:20px;color:#fff;
  display:flex;align-items:center;gap:10px;border-bottom:1px solid #1e293b}
.sidebar .brand .badge{background:var(--primary);border-radius:8px;padding:2px 8px;font-size:13px}
.sidebar .menu{padding:12px 0}
.sidebar .menu .group{padding:14px 22px 6px;font-size:11px;letter-spacing:.08em;
  text-transform:uppercase;color:#475569}
.sidebar .menu a{display:flex;align-items:center;gap:12px;padding:11px 22px;color:#cbd5e1;
  font-size:15px;transition:.15s;border-left:3px solid transparent}
.sidebar .menu a:hover{background:#1e293b;color:#fff;text-decoration:none}
.sidebar .menu a.active{background:#1e293b;color:#fff;border-left-color:var(--accent)}
.sidebar .menu a .mi{width:22px;text-align:center}

.admin-main{flex:1;min-width:0;display:flex;flex-direction:column}
.admin-top{background:#fff;border-bottom:1px solid var(--line);padding:14px 26px;
  display:flex;align-items:center;gap:16px;position:sticky;top:0;z-index:20}
.admin-top h2{font-family:'Prompt';font-size:18px;font-weight:600}
.admin-top .right{margin-left:auto;display:flex;align-items:center;gap:14px}
.admin-top .user{display:flex;align-items:center;gap:10px;font-size:14px}
.admin-top .avatar{width:36px;height:36px;border-radius:50%;background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:600}
.admin-body{padding:26px;flex:1}
.crumb{color:var(--muted);font-size:13px;margin-bottom:4px}

.toolbar{display:flex;align-items:center;gap:12px;margin-bottom:18px;flex-wrap:wrap}
.toolbar .search{flex:1;min-width:200px}
.toolbar input,.toolbar select,.form-grid input,.form-grid select,.form-grid textarea{
  padding:10px 13px;border:1px solid var(--line);border-radius:10px;font-family:inherit;font-size:14px;width:100%}
.toolbar input:focus,.form-grid input:focus,.form-grid select:focus{outline:none;border-color:var(--primary)}
.form-grid input[type=checkbox]{width:auto;margin-right:6px;transform:scale(1.2);vertical-align:middle}
.form-grid textarea{resize:vertical}

.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.form-grid .full{grid-column:1/-1}
.form-grid label{display:block;font-size:13px;font-weight:500;margin-bottom:6px;color:#475569}
@media(max-width:700px){.form-grid{grid-template-columns:1fr}.sidebar{width:72px}
  .sidebar .brand span,.sidebar .menu .group,.sidebar .menu a span{display:none}}

.actions{display:flex;gap:6px}
.pagination{display:flex;gap:6px;margin-top:18px;justify-content:flex-end}
.pagination a,.pagination span{padding:7px 12px;border:1px solid var(--line);border-radius:8px;
  font-size:14px;background:#fff;color:var(--ink)}
.pagination .cur{background:var(--primary);color:#fff;border-color:var(--primary)}
.muted{color:var(--muted)}.right-text{text-align:right}
.foot{padding:18px;text-align:center;color:var(--muted);font-size:13px}

/* progress bars used in distribution panels */
.dist{margin-bottom:12px}
.dist .row{display:flex;justify-content:space-between;font-size:14px;margin-bottom:5px}
.dist .bar{height:9px;background:#eef2f7;border-radius:999px;overflow:hidden}
.dist .bar i{display:block;height:100%;border-radius:999px;background:var(--grad)}
.dist:nth-child(2n) .bar i{background:var(--grad2)}