:root{
  --blue:#2563eb;--bg:#f6f7f9;--card-bg:#fff;--border:#dfe3e8;--text:#1f2530;--muted:#6b7280;
  --badge-open-bg:#e0f2fe;--badge-open-text:#075985;
  --badge-in-progress-bg:#ede9fe;--badge-in-progress-text:#5b21b6;
  --badge-on-hold-bg:#e5e7eb;--badge-on-hold-text:#374151;
  --badge-pending-bg:#fef3c7;--badge-pending-text:#92400e;
  --badge-closed-bg:#e5e7eb;--badge-closed-text:#374151;
  --badge-high-bg:#fee2e2;--badge-high-text:#991b1b;
  --badge-medium-bg:#fef3c7;--badge-medium-text:#92400e;
  --badge-low-bg:#e5e7eb;--badge-low-text:#374151;
  --msg-staff-bg:#eff6ff;--msg-requester-bg:#fff;--msg-note-bg:#fffbeb;--msg-note-border:#f5d99a;--badge-note-bg:#fef3c7;--badge-note-text:#92400e;
  --error-bg:#fee2e2;--error-text:#991b1b;
  --success-bg:#dcfce7;--success-text:#166534;
  --hover-row:#fafbfc;--input-bg:#fff;
}
[data-theme="dark"]{
  --blue:#60a5fa;--bg:#14171c;--card-bg:#1c2027;--border:#2c313a;--text:#e5e7eb;--muted:#9ca3af;
  --badge-open-bg:#0c2f4a;--badge-open-text:#7dd3fc;
  --badge-in-progress-bg:#2e1065;--badge-in-progress-text:#c4b5fd;
  --badge-on-hold-bg:#374151;--badge-on-hold-text:#d1d5db;
  --badge-pending-bg:#452c06;--badge-pending-text:#fcd34d;
  --badge-closed-bg:#374151;--badge-closed-text:#d1d5db;
  --badge-high-bg:#3b1414;--badge-high-text:#fca5a5;
  --badge-medium-bg:#452c06;--badge-medium-text:#fcd34d;
  --badge-low-bg:#374151;--badge-low-text:#d1d5db;
  --msg-staff-bg:#152238;--msg-requester-bg:#1c2027;--msg-note-bg:#332a12;--msg-note-border:#6b5522;--badge-note-bg:#4a3a12;--badge-note-text:#fbd889;
  --error-bg:#3b1414;--error-text:#fca5a5;
  --success-bg:#0f2e1c;--success-text:#86efac;
  --hover-row:#20242c;--input-bg:#1c2027;
}
*{box-sizing:border-box;}
body{margin:0;font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);}
a{color:var(--blue);text-decoration:none;}
.topbar{display:flex;align-items:center;justify-content:space-between;background:var(--card-bg);border-bottom:1px solid var(--border);padding:14px 24px;}
.brand{font-weight:700;font-size:18px;color:var(--text);}
.topbar nav{display:flex;align-items:center;}
.topbar nav a{margin-left:16px;color:var(--text);}
.topbar nav .account-menu{margin-left:16px;}
.topbar nav .who{margin-left:16px;color:var(--muted);}
.theme-toggle{margin-left:16px;background:none;border:1px solid var(--border);border-radius:6px;padding:6px 8px;cursor:pointer;color:var(--text);display:inline-flex;align-items:center;}
.theme-toggle:hover{background:var(--hover-row);}
.wrap{max-width:1100px;margin:24px auto;padding:0 20px;}
.card{background:var(--card-bg);border:1px solid var(--border);border-radius:8px;padding:20px;margin-bottom:16px;}
table{width:100%;border-collapse:collapse;}
th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--border);font-size:14px;}
th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.03em;}
tr:hover td{background:var(--hover-row);}
.badge{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600;}
.badge-open{background:var(--badge-open-bg);color:var(--badge-open-text);}
.badge-in-progress{background:var(--badge-in-progress-bg);color:var(--badge-in-progress-text);}
.badge-on-hold{background:var(--badge-on-hold-bg);color:var(--badge-on-hold-text);}
.badge-pending{background:var(--badge-pending-bg);color:var(--badge-pending-text);}
.badge-closed{background:var(--badge-closed-bg);color:var(--badge-closed-text);}
.badge-high{background:var(--badge-high-bg);color:var(--badge-high-text);}
.badge-medium{background:var(--badge-medium-bg);color:var(--badge-medium-text);}
.badge-low{background:var(--badge-low-bg);color:var(--badge-low-text);}
.btn{display:inline-block;background:var(--blue);color:#fff;padding:9px 16px;border-radius:6px;border:none;cursor:pointer;font-size:14px;}
.btn:hover{filter:brightness(0.9);}
.btn-secondary{background:var(--card-bg);color:var(--text);border:1px solid var(--border);}
input[type=text],input[type=email],input[type=password],input[type=search],input[type=number],select,textarea{width:100%;padding:9px 10px;border:1px solid var(--border);border-radius:6px;font-size:14px;margin-bottom:12px;background:var(--input-bg);color:var(--text);}
label{font-size:13px;font-weight:600;color:var(--muted);display:block;margin-bottom:4px;}
.error{background:var(--error-bg);color:var(--error-text);padding:10px 14px;border-radius:6px;margin-bottom:14px;font-size:14px;}
.success{background:var(--success-bg);color:var(--success-text);padding:10px 14px;border-radius:6px;margin-bottom:14px;font-size:14px;}
.msg{border:1px solid var(--border);border-radius:8px;padding:14px 16px;margin-bottom:12px;}
.msg-staff{background:var(--msg-staff-bg);}
.msg-requester{background:var(--msg-requester-bg);}
.msg-meta{font-size:12px;color:var(--muted);margin-bottom:6px;}
.msg-body :is(ul,ol){margin:6px 0;padding-left:22px;}
.sp-editor-toolbar{display:flex;gap:6px;margin-bottom:6px;}
.sp-editor-toolbar button{border:1px solid var(--border);background:var(--card-bg);color:var(--text);border-radius:4px;padding:5px 10px;cursor:pointer;font-size:13px;}
.sp-editor-toolbar button:hover{background:var(--hover-row);}
.sp-editor-area{min-height:260px;border:1px solid var(--border);border-radius:6px;padding:10px;background:var(--input-bg);color:var(--text);font-size:14px;}
.attachment-list a{display:inline-block;margin-right:10px;font-size:13px;}
.login-box{max-width:360px;margin:80px auto;}
.ticket-title{font-size:20px;font-weight:700;margin-bottom:4px;}
.ticket-sub{color:var(--muted);font-size:13px;margin-bottom:18px;}
.meta-row{display:flex;gap:24px;flex-wrap:wrap;row-gap:12px;}
.meta-row form{flex:0 0 auto;}
.meta-row label{margin:0;white-space:nowrap;}
.meta-row select{width:auto;min-width:160px;margin-bottom:0;}

.login-logo{text-align:center;margin-bottom:18px;}
.login-logo img{max-width:180px;height:auto;}
.login-logo .logo-dark{display:none;}
[data-theme="dark"] .login-logo .logo-light{display:none;}
[data-theme="dark"] .login-logo .logo-dark{display:inline;}

.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:0 -4px;}
.table-scroll table{min-width:640px;}

@media (max-width:640px){
  .wrap{padding:0 12px;margin:14px auto;}
  .topbar{padding:10px 14px;flex-wrap:wrap;row-gap:8px;}
  .brand{font-size:16px;}
  .topbar nav{flex-wrap:wrap;row-gap:6px;}
  .topbar nav a,.topbar nav .who{margin-left:0;margin-right:12px;font-size:13px;}
  .topbar nav .account-menu{margin-left:0;margin-right:12px;}
  .theme-toggle{margin-left:auto;}
  .card{padding:14px;}
  .ticket-title{font-size:17px;}
  th,td{padding:8px 6px;font-size:13px;}
  .col-optional{display:none;}
  .table-scroll table{min-width:0;}
  .login-box{margin:36px auto;max-width:100%;}
  .login-logo img{max-width:140px;}
  .meta-row{gap:14px;}
  .meta-row select{min-width:0;width:100%;}
  .meta-row form{flex:1 1 100%;}
  .sp-editor-toolbar{flex-wrap:wrap;}
}

.msg-note{background:var(--msg-note-bg);border-color:var(--msg-note-border);border-style:dashed;}
.badge-note{background:var(--badge-note-bg);color:var(--badge-note-text);margin-left:6px;}
.btn-note{background:transparent;border:1px solid var(--msg-note-border);color:var(--badge-note-text);}

.link-btn{background:none;border:none;padding:0;color:var(--blue);text-decoration:underline;cursor:pointer;font-size:inherit;font-family:inherit;}
.btn-cancel{background:none;border:1px solid var(--border);color:var(--text);padding:9px 16px;border-radius:6px;cursor:pointer;font-size:14px;}

.stats-bar{display:flex;gap:24px;flex-wrap:wrap;}
.stats-bar .stat{flex:1;min-width:140px;}
.stats-bar .stat-num{font-size:26px;font-weight:700;line-height:1.1;}
.stats-bar .stat-label{color:var(--muted);font-size:12px;margin-top:2px;}
@media (max-width:640px){
  .stats-bar{gap:16px;}
  .stats-bar .stat-num{font-size:20px;}
}

@media (max-width:640px){
  .dashboard-filters{flex-direction:column;align-items:stretch;}
  .dashboard-filters input,.dashboard-filters select{width:100% !important;min-width:0 !important;}
}

.brand{display:flex;align-items:center;gap:8px;}
.brand-logo{height:26px;width:auto;display:block;}
.brand-logo-dark{display:none;}
[data-theme="dark"] .brand-logo-light{display:none;}
[data-theme="dark"] .brand-logo-dark{display:block;}

.account-menu{position:relative;display:inline-block;}
.account-trigger{background:none;border:none;color:var(--text);font-size:14px;cursor:pointer;padding:4px 2px;font-family:inherit;display:inline-flex;align-items:center;gap:4px;}
.account-trigger .caret{font-size:10px;color:var(--muted);}
.account-dropdown{display:none;position:absolute;right:0;top:calc(100% + 8px);background:var(--card-bg);border:1px solid var(--border);border-radius:8px;min-width:150px;box-shadow:0 4px 16px rgba(0,0,0,.15);z-index:50;overflow:hidden;}
.account-dropdown.open{display:block;}
.account-dropdown a{display:block;padding:10px 14px;color:var(--text);text-decoration:none;font-size:14px;}
.account-dropdown a:hover{background:var(--bg);}