:root{
  --sinopec-red:#E60012;--sinopec-red-dark:#B8000E;
  --bp-green:#00A651;--bp-green-dark:#007A3D;
  --liberty-blue:#003DA5;--liberty-blue-dark:#002A73;
  --bg:#F4F6F8;--surface:#FFFFFF;--surface2:#F8FAFC;--surface3:#EEF2F6;
  --border:#DDE3EA;--border2:#C9D2DD;
  --text:#142033;--muted:#667085;--label:#344054;
  --mono:'DM Mono',monospace;--sans:'DM Sans',sans-serif;
  --accent:#00A651;--accent2:#003DA5;
  --warn:#F97316;--danger:#E60012;
  --purple:#7C3AED;--gold:#D97706;--pink:#DB2777;
  --ok-bg:#ECFDF3;--ok-border:#BBF7D0;
  --warn-bg:#FFF7ED;--warn-border:#FED7AA;
  --danger-bg:#FFF1F2;--danger-border:#FECDD3;
}
*{box-sizing:border-box;margin:0;padding:0}
html{font-size:14px}
body{background:linear-gradient(180deg,#F8FAFC 0%,#EEF2F6 100%);color:var(--text);font-family:var(--sans);min-height:100vh;overflow-x:hidden}

/* ── LOGIN ── */
#loginScreen{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px;position:relative;z-index:1}
.login-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:40px 36px;width:100%;max-width:380px;text-align:center;position:relative;overflow:hidden;box-shadow:0 4px 24px rgba(15,23,42,.10)}
.login-logo{width:48px;height:48px;background:linear-gradient(135deg,var(--sinopec-red),var(--liberty-blue));border-radius:12px;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;font-size:22px}
.login-brand{font-size:11px;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:var(--muted);font-family:var(--mono);margin-bottom:6px}
.login-title{font-size:22px;font-weight:700;margin-bottom:4px}
.login-sub{font-size:12px;color:var(--muted);margin-bottom:28px;line-height:1.5}
.pin-wrap{display:flex;justify-content:center;gap:8px;margin-bottom:20px}
.pin-dot{width:14px;height:14px;border-radius:50%;border:2px solid var(--border2);background:transparent;transition:all .2s}
.pin-dot.filled{background:var(--sinopec-red);border-color:var(--sinopec-red);box-shadow:0 0 8px rgba(230,0,18,.3)}
.pin-input{position:absolute;opacity:0;width:1px;height:1px}
.numpad{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:16px}
.num-btn{background:var(--surface2);border:1.5px solid var(--border);border-radius:10px;color:var(--text);font-family:var(--mono);font-size:18px;font-weight:600;padding:14px;cursor:pointer;transition:all .15s;user-select:none}
.num-btn:hover{background:var(--surface3);border-color:var(--sinopec-red)}
.num-btn:active{transform:scale(.95)}
.num-btn.del{font-size:14px;color:var(--muted)}
.num-btn.enter{background:linear-gradient(135deg,var(--sinopec-red),var(--sinopec-red-dark));border-color:var(--sinopec-red);color:#fff;font-size:12px;letter-spacing:.06em}
.login-error{display:none;font-size:12px;color:var(--danger);font-family:var(--mono);margin-top:8px}
.login-error.show{display:block}

/* ── APP SHELL ── */
#appShell{display:none;min-height:100vh;position:relative;z-index:1}

/* ── TOP BAR ── */
.topbar{background:linear-gradient(135deg,var(--sinopec-red) 0%,var(--liberty-blue) 100%);padding:0 20px;height:52px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100;box-shadow:0 4px 16px rgba(0,0,0,.15)}
.topbar-left{display:flex;align-items:center;gap:12px}
.topbar-logo{width:28px;height:28px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.25);border-radius:7px;display:flex;align-items:center;justify-content:center;font-size:13px;flex-shrink:0}
.topbar-brand{font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.8);font-family:var(--mono)}
.topbar-divider{width:1px;height:18px;background:rgba(255,255,255,.25)}
.topbar-title{font-size:13px;font-weight:700;color:#fff}
.topbar-right{display:flex;align-items:center;gap:10px}
.topbar-time{font-family:var(--mono);font-size:11px;color:rgba(255,255,255,.75)}
.logout-btn{font-size:11px;color:rgba(255,255,255,.8);cursor:pointer;font-family:var(--mono);padding:5px 10px;border:1px solid rgba(255,255,255,.25);border-radius:6px;background:rgba(255,255,255,.1);transition:all .15s}
.logout-btn:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.2)}

/* ── LAYOUT ── */
.app-body{display:flex;min-height:calc(100vh - 52px)}

/* ── SIDEBAR ── */
.sidebar{width:200px;background:var(--surface);border-right:1.5px solid var(--border);flex-shrink:0;padding:16px 0;position:sticky;top:52px;height:calc(100vh - 52px);overflow-y:auto}
.nav-section-label{font-size:9px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-family:var(--mono);padding:8px 16px 4px}
.nav-item{display:flex;align-items:center;gap:10px;padding:9px 16px;cursor:pointer;transition:all .15s;border-left:2px solid transparent;color:var(--label);font-size:13px}
.nav-item:hover{background:var(--surface2);color:var(--sinopec-red)}
.nav-item.active{background:#FFF1F2;border-left-color:var(--sinopec-red);color:var(--sinopec-red)}
.nav-icon{font-size:14px;width:18px;text-align:center;flex-shrink:0}
.nav-label{font-weight:500}
.nav-badge{margin-left:auto;font-family:var(--mono);font-size:9px;padding:1px 5px;border-radius:4px;background:var(--danger-bg);color:var(--danger);border:1px solid var(--danger-border)}

/* ── MAIN CONTENT ── */
.main{flex:1;overflow:hidden;min-width:0}
.page{display:none;padding:20px;max-width:1200px}
.page.active{display:block}

/* ── PAGE HEADER ── */
.page-header{margin-bottom:20px}
.page-eyebrow{font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:4px}
.page-title{font-size:22px;font-weight:700;margin-bottom:4px}
.page-sub{font-size:12px;color:var(--muted)}

/* ── FILTERS BAR ── */
.filters-bar{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px;align-items:center}
.filter-group{display:flex;background:var(--surface);border:1px solid var(--border);border-radius:8px;overflow:hidden}
.filter-btn{padding:6px 12px;font-family:var(--mono);font-size:11px;font-weight:500;color:var(--muted);cursor:pointer;border:none;background:transparent;transition:all .15s;white-space:nowrap}
.filter-btn:hover{color:var(--text)}
.filter-btn.active{background:#FFF1F2;color:var(--sinopec-red);font-weight:700}
.filter-select{background:var(--surface);border:1px solid var(--border);border-radius:8px;color:var(--label);font-family:var(--mono);font-size:11px;padding:6px 10px;outline:none;cursor:pointer;-webkit-appearance:none}
.filter-select option{background:#fff}
.filter-select:focus{border-color:var(--sinopec-red)}
.refresh-btn{padding:6px 12px;font-family:var(--mono);font-size:11px;color:var(--muted);cursor:pointer;border:1px solid var(--border);border-radius:8px;background:transparent;transition:all .15s;display:flex;align-items:center;gap:6px}
.refresh-btn:hover{border-color:var(--sinopec-red);color:var(--sinopec-red)}

/* ── STAT CARDS ── */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px;margin-bottom:20px}
.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:16px;position:relative;overflow:hidden;transition:border-color .2s}
.stat-card:hover{border-color:var(--border2)}
.stat-card-stripe{position:absolute;top:0;left:0;width:100%;height:3px}
.stat-card-icon{font-size:18px;margin-bottom:10px;display:block}
.stat-card-value{font-family:var(--mono);font-size:26px;font-weight:600;line-height:1;margin-bottom:4px}
.stat-card-label{font-size:11px;color:var(--muted);line-height:1.4}
.stat-card-sub{font-family:var(--mono);font-size:10px;color:var(--label);margin-top:6px}
.stat-green .stat-card-value{color:var(--bp-green)}
.stat-blue .stat-card-value{color:var(--liberty-blue)}
.stat-orange .stat-card-value{color:var(--warn)}
.stat-red .stat-card-value{color:var(--sinopec-red)}
.stat-purple .stat-card-value{color:var(--purple)}
.stat-gold .stat-card-value{color:var(--gold)}
.stat-pink .stat-card-value{color:var(--pink)}
.stat-card.clickable{cursor:pointer}
.stat-card.clickable:hover{border-color:var(--sinopec-red);transform:translateY(-2px);box-shadow:0 4px 16px rgba(230,0,18,.10)}
.stat-card.clickable:active{transform:translateY(0)}

/* ── SECTION ── */
.section{background:var(--surface);border:1px solid var(--border);border-radius:12px;overflow:hidden;margin-bottom:16px}
.section-head{padding:12px 16px;background:var(--surface2);border-bottom:1.5px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:10px}
.section-head-left{display:flex;align-items:center;gap:8px}
.section-head-title{font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;font-family:var(--mono);color:var(--label)}
.section-count{font-family:var(--mono);font-size:10px;color:var(--muted);background:var(--surface);border:1px solid var(--border);padding:2px 7px;border-radius:4px}

/* ── TABLE ── */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse}
th{padding:8px 12px;text-align:left;font-family:var(--mono);font-size:9px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);border-bottom:1.5px solid var(--border);white-space:nowrap;background:var(--surface2)}
td{padding:9px 12px;border-bottom:1px solid var(--border);font-size:12px;color:var(--label);vertical-align:middle}
tr:last-child td{border-bottom:none}
tr:hover td{background:rgba(230,0,18,.025)}
.td-main{color:var(--text);font-weight:500}
.td-mono{font-family:var(--mono);font-size:11px}
.td-right{text-align:right}
.empty-row td{text-align:center;padding:32px;color:var(--muted);font-style:italic}

/* ── BADGES ── */
.badge{display:inline-flex;align-items:center;font-family:var(--mono);font-size:9px;font-weight:600;letter-spacing:.06em;padding:2px 7px;border-radius:4px;white-space:nowrap}
.badge-ok{background:var(--ok-bg);color:var(--accent);border:1px solid var(--ok-border)}
.badge-warn{background:var(--warn-bg);color:var(--warn);border:1px solid var(--warn-border)}
.badge-danger{background:var(--danger-bg);color:var(--danger);border:1px solid var(--danger-border)}
.badge-blue{background:rgba(34,211,238,.08);color:var(--accent2);border:1px solid rgba(34,211,238,.2)}
.badge-purple{background:rgba(167,139,250,.08);color:var(--purple);border:1px solid rgba(167,139,250,.2)}
.badge-pink{background:rgba(219,39,119,.08);color:var(--pink);border:1px solid rgba(219,39,119,.2)}
.badge-muted{background:rgba(90,106,133,.1);color:var(--muted);border:1px solid var(--border)}

/* ── ALERT CARDS ── */
.alert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px;margin-bottom:20px}
.alert-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:14px;transition:border-color .2s}
.alert-card-header{display:flex;align-items:center;gap:8px;margin-bottom:10px}
.alert-card-icon{font-size:16px}
.alert-card-title{font-size:11px;font-weight:600;letter-spacing:.07em;text-transform:uppercase;font-family:var(--mono);color:var(--label);flex:1}
.alert-card-count{font-family:var(--mono);font-size:12px;font-weight:600}
.alert-card-body{font-size:12px;color:var(--muted);line-height:1.7}
.alert-card-row{display:flex;align-items:flex-start;gap:8px;padding:3px 0}
.alert-card-row-icon{flex-shrink:0;margin-top:1px}
.alert-card-row-text{flex:1}
.alert-card.has-issues{border-color:rgba(251,146,60,.25);background:rgba(251,146,60,.03)}
.alert-card.has-danger{border-color:rgba(248,113,113,.25);background:rgba(248,113,113,.03)}
.alert-card.all-ok{border-color:rgba(74,222,128,.2);background:rgba(74,222,128,.03)}

/* ── SEARCH + PAGINATION ── */
.table-toolbar{padding:10px 14px;display:flex;align-items:center;justify-content:space-between;gap:10px;border-bottom:1px solid var(--border)}
.search-input{background:var(--surface);border:1.5px solid var(--border);border-radius:7px;color:var(--text);font-family:var(--sans);font-size:12px;padding:6px 10px;outline:none;transition:border-color .2s;width:200px}
.search-input:focus{border-color:var(--sinopec-red);box-shadow:0 0 0 3px rgba(230,0,18,.08)}
.pagination{display:flex;align-items:center;gap:6px;font-family:var(--mono);font-size:11px;color:var(--muted)}
.page-btn{padding:4px 9px;border:1px solid var(--border);border-radius:5px;background:transparent;color:var(--muted);cursor:pointer;transition:all .15s}
.page-btn:hover{border-color:var(--sinopec-red);color:var(--sinopec-red)}
.page-btn:disabled{opacity:.35;cursor:not-allowed}
.page-current{color:var(--sinopec-red);font-weight:700}

/* ── LOADING ── */
.loading-overlay{display:none;position:fixed;inset:0;z-index:500;background:rgba(244,246,248,.85);align-items:center;justify-content:center;flex-direction:column;gap:14px;backdrop-filter:blur(2px)}
.loading-overlay.show{display:flex}
.spinner{width:32px;height:32px;border:2px solid var(--border);border-top-color:var(--sinopec-red);border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-text{font-family:var(--mono);font-size:12px;color:var(--text);font-weight:600}

/* ── STATUS BAR ── */
.status-bar{padding:6px 20px;background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:10px;color:var(--muted)}
.status-dot-live{width:5px;height:5px;border-radius:50%;background:var(--bp-green);box-shadow:0 0 5px var(--bp-green);animation:pulse 2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}

/* ── MODAL ── */
.modal-overlay{display:none;position:fixed;inset:0;z-index:300;background:rgba(20,32,51,.55);backdrop-filter:blur(4px);align-items:center;justify-content:center;padding:20px}
.modal-overlay.show{display:flex}
.modal{background:var(--surface);border:1px solid var(--border);border-radius:14px;width:100%;max-width:520px;max-height:80vh;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,.2)}
.modal-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.modal-title{font-size:15px;font-weight:700}
.modal-close{font-size:18px;color:var(--muted);cursor:pointer;padding:4px 8px;border-radius:6px;transition:all .15s}
.modal-close:hover{color:var(--sinopec-red);background:var(--danger-bg)}
.modal-body{padding:20px}
.modal-row{display:flex;padding:8px 0;border-bottom:1px solid var(--border);gap:12px}
.modal-row:last-child{border-bottom:none}
.modal-key{font-size:11px;color:var(--muted);font-family:var(--mono);width:40%;flex-shrink:0}
.modal-val{font-size:13px;font-weight:500;flex:1;word-break:break-word}

/* ── BACK BUTTON ── */
.back-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;font-family:var(--mono);font-size:11px;color:var(--muted);border:1px solid var(--border);border-radius:8px;background:transparent;cursor:pointer;transition:all .15s;margin-bottom:16px}
.back-btn:hover{border-color:var(--sinopec-red);color:var(--sinopec-red)}

/* ── DRAWER ── */
.drawer-overlay{display:none;position:fixed;inset:0;z-index:150;background:rgba(20,32,51,.45);backdrop-filter:blur(2px)}
.drawer-overlay.open{display:block}
.drawer{position:fixed;top:0;left:0;bottom:0;width:220px;background:var(--surface);border-right:1.5px solid var(--border);z-index:160;transform:translateX(-100%);transition:transform .25s cubic-bezier(.4,0,.2,1);padding:0;overflow-y:auto;box-shadow:4px 0 20px rgba(0,0,0,.1)}
.drawer.open{transform:translateX(0)}
.drawer-header{padding:16px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.drawer-brand{font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-family:var(--mono)}
.drawer-close{font-size:18px;color:var(--muted);cursor:pointer;padding:4px 8px;border-radius:6px}
.drawer-close:hover{color:var(--sinopec-red);background:var(--danger-bg)}
.drawer-nav{padding:12px 0}
.drawer-item{display:flex;align-items:center;gap:10px;padding:10px 16px;cursor:pointer;color:var(--label);font-size:13px;transition:all .15s;border-left:2px solid transparent}
.drawer-item:hover{background:var(--surface2);color:var(--sinopec-red)}
.drawer-item.active{background:#FFF1F2;border-left-color:var(--sinopec-red);color:var(--sinopec-red)}
.drawer-item-icon{font-size:15px;width:20px;text-align:center}
.drawer-item-label{font-weight:500}
.drawer-badge{margin-left:auto;font-family:var(--mono);font-size:9px;padding:1px 5px;border-radius:4px;background:var(--danger-bg);color:var(--danger);border:1px solid var(--danger-border)}

/* ── HAMBURGER ── */
.hamburger{display:none;align-items:center;justify-content:center;width:32px;height:32px;cursor:pointer;color:rgba(255,255,255,.85);font-size:18px;border-radius:6px;transition:all .15s;margin-right:4px}
.hamburger:hover{background:rgba(255,255,255,.2);color:#fff}

/* ── COMPLAINT SEVERITY ROWS ── */
.sev-high-row td{background:rgba(230,0,18,.03)}
.sev-mid-row td{background:rgba(249,115,22,.02)}

/* ── RESPONSIVE ── */
@media(max-width:768px){
  .sidebar{display:none}
  .hamburger{display:flex}
  .stats-grid{grid-template-columns:1fr 1fr}
  .alert-grid{grid-template-columns:1fr}
  .page{padding:14px}
  .filters-bar{gap:6px;flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:4px}
  .filters-bar .filter-group{flex-shrink:0}
  .filter-select{flex-shrink:0}
  .app-body{flex-direction:column}
  .table-toolbar{flex-wrap:wrap}
  .search-input{width:100%}
}