/* =====================================================================
   Faculty Centralized Dashboard Portal - Clean Corporate Theme
   ดัดแปลงจาก Mockup.html (รวม light/dark mode + responsive)
   ===================================================================== */

:root{
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
  --bg:#F2F5FA; --surface:#FFFFFF; --surface-2:#F7F9FC; --ink:#14213D; --muted:#58657F; --line:#DCE2EE;
  --header-bg:#1B3A73; --primary:#1E3F7A; --primary-hover:#163163; --primary-ink:#FFFFFF; --primary-soft:#E6EDF9;
  --gold:#C9962F;
  --public-bg:#E3F4EA; --public-ink:#1B6B3A; --restr-bg:#FCEFD6; --restr-ink:#8A5A0A;
  --danger:#B3261E; --danger-soft:#FBE7E5; --focus:#2F6FDE;
  --shadow:0 1px 2px rgba(20,33,61,.06),0 6px 18px rgba(20,33,61,.07);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0E1526; --surface:#162038; --surface-2:#1B2744; --ink:#E8EDF8; --muted:#9DAAC7; --line:#2B3858;
    --header-bg:#101A33; --primary:#5C86E6; --primary-hover:#7599EC; --primary-ink:#0B1226; --primary-soft:#1F2F55;
    --gold:#D9A94A; --public-bg:#15382A; --public-ink:#7FD3A0; --restr-bg:#3B2E12; --restr-ink:#F0C877;
    --danger:#F2877F; --danger-soft:#3A1D1B; --focus:#8FB0FF; --shadow:0 1px 2px rgba(0,0,0,.4),0 6px 18px rgba(0,0,0,.35);
  }
}
:root[data-theme="dark"]{
  --bg:#0E1526; --surface:#162038; --surface-2:#1B2744; --ink:#E8EDF8; --muted:#9DAAC7; --line:#2B3858;
  --header-bg:#101A33; --primary:#5C86E6; --primary-hover:#7599EC; --primary-ink:#0B1226; --primary-soft:#1F2F55;
  --gold:#D9A94A; --public-bg:#15382A; --public-ink:#7FD3A0; --restr-bg:#3B2E12; --restr-ink:#F0C877;
  --danger:#F2877F; --danger-soft:#3A1D1B; --focus:#8FB0FF; --shadow:0 1px 2px rgba(0,0,0,.4),0 6px 18px rgba(0,0,0,.35);
}

html{background:var(--bg);scroll-padding-top:env(safe-area-inset-top,0px)}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:'IBM Plex Sans Thai','Sarabun','Noto Sans Thai',system-ui,sans-serif;font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:6px}
h1,h2,h3,p{margin:0}
.muted{color:var(--muted)}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:9px 16px;border-radius:8px;font-weight:500;min-height:40px;text-decoration:none;transition:background .15s,border-color .15s}
.btn:hover{background:var(--surface-2);border-color:var(--muted)}
.btn.primary{background:var(--primary);border-color:var(--primary);color:var(--primary-ink)}
.btn.primary:hover{background:var(--primary-hover);border-color:var(--primary-hover)}
.btn.danger{background:var(--danger);border-color:var(--danger);color:#fff}
.btn.danger:hover{background:var(--danger);border-color:var(--danger);filter:brightness(.93)}
.btn.sm{padding:5px 12px;min-height:34px;font-size:14px}
.btn.icon{padding:0;width:36px;height:36px;min-height:36px}
.btn.ghost{border-color:transparent;background:transparent}
.btn.ghost:hover{background:var(--primary-soft)}
.btn[disabled]{opacity:.45;cursor:not-allowed}

/* Header */
.hdr{position:sticky;top:env(safe-area-inset-top,0px);z-index:30;background:var(--header-bg);color:#fff;border-bottom:3px solid var(--gold)}
.hdr .wrap{display:flex;align-items:center;gap:16px;min-height:64px}
.brand{display:flex;align-items:center;gap:12px;font-weight:600;line-height:1.25;background:none;border:0;color:#fff;padding:0;text-align:left;text-decoration:none}
.brand small{display:block;font-weight:400;opacity:.75;font-size:12px}
.logo{height:36px;width:auto;flex:none;display:block}
.nav{display:flex;gap:4px;margin-left:12px}
.nav a{display:inline-block;color:#fff;opacity:.8;padding:8px 12px;border-radius:8px;font-weight:500;text-decoration:none}
.nav a:hover{background:rgba(255,255,255,.1);opacity:1}
.nav a[aria-current="page"]{background:rgba(255,255,255,.16);opacity:1}
.userbox{margin-left:auto;display:flex;align-items:center;gap:12px}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--gold);color:#1a1405;display:grid;place-items:center;font-weight:700;flex:none}
.uinfo{line-height:1.25;font-size:14px}
.uinfo small{display:block;opacity:.75;font-size:12px}
.role{display:inline-block;font-size:12px;font-weight:600;padding:1px 8px;border-radius:99px;background:rgba(255,255,255,.18);margin-left:6px}
.hdr .btn{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.hdr .btn:hover{background:rgba(255,255,255,.12)}

/* Login */
.login{min-height:100dvh;display:grid;grid-template-columns:1.05fr 1fr}
.login-side{background:var(--header-bg);color:#fff;padding:56px;display:flex;flex-direction:column;justify-content:space-between;border-right:4px solid var(--gold)}
.login-side h1{font-size:34px;line-height:1.3;font-weight:700;max-width:14em;margin-top:28px}
.login-side p{opacity:.8;max-width:30em;margin-top:14px}
.login-side ul{list-style:none;padding:0;margin:28px 0 0;display:grid;gap:10px;font-size:14px;opacity:.9}
.login-side li{display:flex;gap:10px;align-items:center}
.login-main{display:grid;place-items:center;padding:32px 20px}
.login-card{width:100%;max-width:420px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:32px;box-shadow:var(--shadow)}
.login-card h2{font-size:22px;margin-bottom:6px}
.sso-btn{width:100%;margin-top:22px;min-height:48px;font-size:16px}
.demo-box{margin-top:26px;padding-top:20px;border-top:1px dashed var(--line);font-size:14px}
.demo-box h3{font-size:14px;font-weight:600;margin-bottom:10px}
.opt{display:flex;gap:10px;align-items:center;padding:7px 0}
.opt input{accent-color:var(--primary);width:17px;height:17px}
.field-inline{margin:6px 0 0 27px}
.field-inline select{width:100%}

/* Page */
main{padding:28px 0 90px}
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.page-head h1{font-size:26px;line-height:1.3}
.page-head p{color:var(--muted);margin-top:2px}

/* Dept sidebar */
.layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:28px;align-items:start}
.side{position:sticky;top:calc(67px + env(safe-area-inset-top,0px) + 16px)}
.side-toggle{display:none}
.side-panel{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px;box-shadow:var(--shadow)}
.side-h{font-size:12.5px;font-weight:600;color:var(--muted);padding:6px 10px 8px}
.side-item{width:100%;display:flex;align-items:center;gap:10px;text-align:left;padding:9px 10px;border:0;border-left:3px solid transparent;border-radius:8px;background:none;font-weight:500;line-height:1.4}
.side-item:hover{background:var(--surface-2)}
.side-item .dot{width:10px;height:10px;border-radius:50%;flex:none}
.side-item .nm{flex:1;min-width:0}
.side-item .n{font-size:12px;min-width:26px;text-align:center;padding:1px 8px;border-radius:99px;background:var(--surface-2);color:var(--muted);border:1px solid var(--line);flex:none}
.side-item[aria-current="true"]{background:var(--primary-soft);border-left-color:var(--primary);font-weight:600}
.side-item[aria-current="true"] .n{background:var(--primary);border-color:var(--primary);color:var(--primary-ink)}
.side-item.zero:not([aria-current="true"]){color:var(--muted)}
.side-sep{height:1px;background:var(--line);margin:6px 4px}

/* Filters */
.filters{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin:0 0 20px}
.search{position:relative;flex:1 1 280px;max-width:460px;min-width:0}
.search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--muted)}
.input,select.input,textarea.input{width:100%;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:9px 12px;min-height:42px}
.search .input{padding-left:40px}
.input:focus{border-color:var(--focus)}
.input.invalid{border-color:var(--danger)}
.seg{display:inline-flex;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:3px}
.seg button{border:0;background:none;padding:6px 14px;border-radius:7px;font-weight:500;color:var(--muted)}
.seg button[aria-pressed="true"]{background:var(--primary);color:var(--primary-ink)}
.count{margin-left:auto;color:var(--muted);font-size:14px}

/* Cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:18px 18px 14px;display:flex;flex-direction:column;box-shadow:var(--shadow);position:relative}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
.dept{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);font-weight:500;min-width:0}
.dept i{width:9px;height:9px;border-radius:50%;flex:none}
.dept span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.vis-wrap{position:relative;display:inline-flex;align-items:center;gap:4px;flex:none}
.badge{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;padding:2px 9px;border-radius:99px;line-height:1.6}
.badge.public{background:var(--public-bg);color:var(--public-ink)}
.badge.restricted{background:var(--restr-bg);color:var(--restr-ink)}
.people{width:28px;height:28px;border-radius:50%;border:1px solid var(--line);background:var(--surface-2);display:grid;place-items:center;color:var(--restr-ink);padding:0}
.people:hover{border-color:var(--restr-ink)}
.pop{display:none;position:absolute;right:0;top:100%;padding-top:8px;z-index:20;width:250px}
.pop-in{background:var(--surface);border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 30px rgba(10,20,40,.22);padding:12px 14px;font-size:13px}
.vis-wrap:hover .pop,.vis-wrap:focus-within .pop,.vis-wrap.open .pop{display:block}
.pop h4{margin:0 0 4px;font-size:12px;color:var(--muted);font-weight:600}
.pop h4:not(:first-child){margin-top:10px}
.pop ul{margin:0;padding:0;list-style:none;max-height:150px;overflow:auto}
.pop li,.pop .row{padding:3px 0}
.pop li small{color:var(--muted);display:block;line-height:1.3}
.card h3{font-size:18px;line-height:1.35;font-weight:600;margin-bottom:6px}
.desc{color:var(--muted);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:3.2em}
.meta{margin-top:14px;padding-top:12px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:10px;font-size:13px;color:var(--muted)}
.meta b{font-weight:500;color:var(--ink)}
.card-actions{display:flex;align-items:center;gap:8px;margin-top:14px;flex-wrap:wrap}
.mode{margin-left:auto;display:inline-flex;align-items:center;gap:5px;font-size:12px;color:var(--muted)}
.card-actions .icon{margin-left:0}
.empty{grid-column:1/-1;text-align:center;padding:56px 20px;background:var(--surface);border:1px dashed var(--line);border-radius:12px}
.empty h3{font-size:18px;margin-bottom:6px}

/* Modal */
.overlay{position:fixed;inset:0;background:rgba(10,18,36,.55);z-index:60;display:flex;align-items:flex-start;justify-content:center;padding:calc(24px + env(safe-area-inset-top,0px)) 16px calc(24px + env(safe-area-inset-bottom,0px));overflow-y:auto}
.modal{background:var(--surface);border-radius:14px;width:100%;max-width:620px;box-shadow:0 20px 60px rgba(0,0,0,.35);border:1px solid var(--line);animation:pop .16s ease-out}
.modal.narrow{max-width:460px}
@keyframes pop{from{transform:translateY(8px);opacity:0}to{transform:none;opacity:1}}
.m-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:20px 24px 4px}
.m-head h2{font-size:20px}
.m-head p{color:var(--muted);font-size:14px;margin-top:2px}
.m-body{padding:16px 24px;display:grid;gap:16px}
.m-foot{padding:14px 24px 20px;display:flex;justify-content:flex-end;gap:10px;border-top:1px solid var(--line)}
.f label.l,.f .l{display:block;font-weight:600;font-size:14px;margin-bottom:6px}
.req{color:var(--danger)}
.err{color:var(--danger);font-size:13px;margin-top:4px;display:none}
.err.show{display:block}
.hint{color:var(--muted);font-size:13px;margin-top:4px}
.ro{background:var(--surface-2);color:var(--muted)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.choice{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.choice label{display:block;border:1px solid var(--line);border-radius:10px;padding:11px 13px;cursor:pointer;position:relative}
.choice label:hover{border-color:var(--muted)}
.choice input{position:absolute;opacity:0}
.choice label:has(input:checked){border-color:var(--primary);background:var(--primary-soft);box-shadow:inset 0 0 0 1px var(--primary)}
.choice label:has(input:focus-visible){outline:3px solid var(--focus);outline-offset:2px}
.choice b{display:flex;align-items:center;gap:7px;font-size:14px}
.choice small{color:var(--muted);display:block;font-size:12.5px;line-height:1.4;margin-top:2px}
.picker{border:1px solid var(--line);border-radius:10px;background:var(--surface-2);padding:12px}
.picker-list{margin-top:10px;max-height:210px;overflow:auto;background:var(--surface);border:1px solid var(--line);border-radius:8px}
.pk{display:flex;align-items:center;gap:12px;padding:8px 12px;cursor:pointer;border-bottom:1px solid var(--line)}
.pk:last-child{border-bottom:0}
.pk:hover{background:var(--surface-2)}
.pk input{accent-color:var(--primary);width:17px;height:17px;flex:none}
.pk small{color:var(--muted);display:block;line-height:1.3}
.picker-top{display:flex;justify-content:space-between;align-items:center;font-size:13px;margin-bottom:8px;color:var(--muted)}
.picker-top b{color:var(--ink)}

/* Viewer */
.viewer{display:flex;flex-direction:column;height:calc(100dvh - 67px - env(safe-area-inset-top,0px) - env(safe-area-inset-bottom,0px))}
.v-bar{background:var(--surface);border-bottom:1px solid var(--line)}
.v-bar .wrap{display:flex;align-items:center;gap:14px;min-height:60px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}
.v-title{min-width:0;flex:1}
.v-title h1{font-size:17px;line-height:1.3;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.v-title span{font-size:13px;color:var(--muted)}
.v-frame{flex:1;padding:14px;min-height:0}
.frame-wrap{position:relative;width:100%;height:100%;min-height:0}
.v-frame .frame{width:100%;height:100%;background:var(--surface);border:1px solid var(--line);border-radius:10px;display:block}
.frame-loading{position:absolute;inset:0;z-index:2;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:var(--surface);border:1px solid var(--line);border-radius:10px;color:var(--muted);font-size:14px;transition:opacity .3s ease,visibility .3s ease}
.frame-loading.hide{opacity:0;visibility:hidden;pointer-events:none}
.spinner{width:34px;height:34px;border-radius:50%;border:3px solid var(--line);border-top-color:var(--primary);animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.spinner{animation-duration:1.6s}}

/* Admin */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);overflow:hidden}
.panel-h{padding:16px 20px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.panel-h h2{font-size:17px}
.panel-tools{display:flex;align-items:center;justify-content:flex-end;gap:10px;flex:1 1 300px;min-width:0}
.panel-tools .search{flex:1 1 200px;max-width:420px;min-width:0}
.panel-tools .btn{flex:0 0 auto;white-space:nowrap}
.panel-b{padding:16px 20px}
.tbl-wrap{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:14px}
th,td{text-align:left;padding:11px 16px;border-bottom:1px solid var(--line);vertical-align:middle}
th{font-weight:600;color:var(--muted);background:var(--surface-2);white-space:nowrap}
tr:last-child td{border-bottom:0}
tbody tr{transition:background .12s}
tbody tr:hover{background:var(--surface-2)}
.row-actions{display:flex;gap:6px;justify-content:flex-end;flex-wrap:nowrap}
.add-row{display:flex;gap:10px;flex-wrap:wrap}
.add-row .input{flex:1 1 200px}
.users-table{min-width:0}
th.acts,td.acts{width:1%;white-space:nowrap;text-align:right}
.st{display:inline-flex;align-items:center;white-space:nowrap;font-size:12px;font-weight:600;padding:2px 10px;border-radius:99px;line-height:1.7}
.st.ok{background:var(--public-bg);color:var(--public-ink)}
.st.wait{background:var(--restr-bg);color:var(--restr-ink)}
.st.off{background:var(--danger-soft);color:var(--danger)}
.badges{display:flex;flex-wrap:wrap;align-items:center;gap:6px}
tr.row-off{background:var(--surface-2)}
tr.row-off .u-name,tr.row-off .u-dept{opacity:.55}
.color-input{flex:0 0 auto;width:46px;padding:4px;min-height:42px;cursor:pointer}
.pager{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px 12px;padding:12px 20px;color:var(--muted);font-size:13px;border-top:1px solid var(--line);min-width:0}
.pager .pg-info{min-width:0;overflow-wrap:anywhere}
.pager .row-actions{flex-wrap:wrap}
.cols{display:grid;grid-template-columns:2fr 1fr;gap:18px;align-items:start}
.subtabs{display:flex;gap:6px;margin-bottom:18px;border-bottom:1px solid var(--line)}
.subtabs button{background:none;border:0;padding:10px 16px;font-weight:500;color:var(--muted);border-bottom:3px solid transparent;margin-bottom:-1px}
.subtabs button[aria-selected="true"]{color:var(--primary);border-bottom-color:var(--primary)}

/* Toast */
.toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:#14213D;color:#fff;padding:11px 18px;border-radius:10px;z-index:90;box-shadow:0 8px 24px rgba(0,0,0,.3);font-size:14px;max-width:calc(100vw - 32px);display:flex;gap:8px;align-items:center}
.toast.error{background:var(--danger)}

/* Error page */
.err-page{min-height:100dvh;display:grid;place-items:center;padding:24px}
.err-code{font-size:44px;font-weight:700;color:var(--primary);line-height:1.1}

@media (max-width:860px){
  .layout{grid-template-columns:1fr;gap:16px}
  .side{position:static}
  .side-toggle{display:flex;align-items:center;gap:10px;width:100%;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:10px 14px;font-weight:500;min-height:46px}
  .side-toggle .lbl{color:var(--muted);font-size:13px}
  .side-toggle .cur{flex:1;text-align:left;min-width:0}
  .side-toggle svg:last-child{transition:transform .15s}
  .side.open .side-toggle svg:last-child{transform:rotate(180deg)}
  .side-panel{display:none;margin-top:8px}
  .side.open .side-panel{display:block}
  .login{grid-template-columns:1fr}
  .login-side{padding:28px 24px;border-right:0;border-bottom:4px solid var(--gold)}
  .login-side h1{font-size:26px}
  .login-side ul{display:none}
  .cols{grid-template-columns:1fr}
  .uinfo{display:none}
  .nav{margin-left:0}
}
@media (max-width:560px){
  .wrap{padding:0 14px}
  .brand small{display:none}
  .two,.choice{grid-template-columns:1fr}
  .count{margin-left:0;width:100%}
  .page-head h1{font-size:22px}
  .m-head,.m-body,.m-foot{padding-left:16px;padding-right:16px}
  .hdr .wrap{gap:8px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}