:root{--bg:#f6f7f9;--card:#fff;--ink:#1f2937;--muted:#6b7280;--line:#e5e7eb;--brand:#2563eb;--brand-dark:#1d4ed8;--ok:#059669;--warn:#d97706;--err:#dc2626;--row-alt:#fafbfc}
html[data-theme="dark"]{--bg:#0b1220;--card:#111827;--ink:#e5e7eb;--muted:#9ca3af;--line:#1f2937;--brand:#60a5fa;--brand-dark:#3b82f6;--ok:#10b981;--warn:#f59e0b;--err:#f87171;--row-alt:#0f1828}
@media (prefers-color-scheme: dark){html:not([data-theme]){--bg:#0b1220;--card:#111827;--ink:#e5e7eb;--muted:#9ca3af;--line:#1f2937;--brand:#60a5fa;--brand-dark:#3b82f6;--ok:#10b981;--warn:#f59e0b;--err:#f87171;--row-alt:#0f1828}}
input,select,textarea{background:var(--card);color:var(--ink)}
.btn{background:var(--card);color:var(--ink)}
.kanban .col{background:var(--row-alt)}
th{background:var(--row-alt) !important}
.theme-toggle{background:none;border:1px solid var(--line);color:var(--ink);padding:4px 10px;border-radius:6px;cursor:pointer;font-size:12px}
.search-box{display:flex;gap:6px;align-items:center}
.search-box input{padding:6px 10px;border-radius:6px;border:1px solid var(--line);font-size:13px;width:180px}
@media (max-width:900px){.search-box{display:none}}
*{box-sizing:border-box}html,body{margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Pretendard","Malgun Gothic",sans-serif;background:var(--bg);color:var(--ink);font-size:14px;line-height:1.5}
a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}
.container{max-width:1200px;margin:0 auto;padding:24px}
.nav{background:#fff;border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:24px;max-width:1200px;margin:0 auto;padding:12px 24px}
.nav .brand{font-weight:700;color:var(--brand);font-size:18px}
.nav a{color:var(--ink);padding:8px 0}.nav a.active{color:var(--brand);font-weight:600}
.nav .spacer{flex:1}
.card{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:20px;margin-bottom:16px}
h1{margin:0 0 16px;font-size:22px}h2{margin:0 0 12px;font-size:18px}
.btn{display:inline-block;padding:8px 14px;border-radius:6px;border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;font-size:14px}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand)}.btn-primary:hover{background:var(--brand-dark)}
.btn-danger{background:var(--err);color:#fff;border-color:var(--err)}
.btn-sm{padding:4px 10px;font-size:12px}
form .row{margin-bottom:14px}label{display:block;margin-bottom:4px;font-weight:500}
input,select,textarea{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:6px;font-size:14px;font-family:inherit}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand)}
.error{color:var(--err);font-size:12px;margin-top:4px}
.flash{padding:10px 14px;border-radius:6px;margin-bottom:16px}
.flash.success{background:#d1fae5;color:#065f46;border:1px solid #a7f3d0}
.flash.error{background:#fee2e2;color:#991b1b;border:1px solid #fecaca}
table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line)}th{background:#f9fafb;font-weight:600;font-size:12px;color:var(--muted);text-transform:uppercase}
.muted{color:var(--muted)}.right{text-align:right}.center{text-align:center}
.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:600}
.badge.gray{background:#f3f4f6;color:#374151}.badge.blue{background:#dbeafe;color:#1e40af}.badge.amber{background:#fef3c7;color:#92400e}.badge.green{background:#d1fae5;color:#065f46}.badge.red{background:#fee2e2;color:#991b1b}
.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin-bottom:20px}
.kpi{background:#fff;border:1px solid var(--line);border-radius:8px;padding:16px}
.kpi .v{font-size:24px;font-weight:700;margin-top:4px}
.kanban{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.kanban .col{background:#f3f4f6;border-radius:8px;padding:10px;min-height:200px}
.kanban .col h3{font-size:13px;margin:0 0 10px;color:var(--muted);text-transform:uppercase}
.kanban .item{background:#fff;border:1px solid var(--line);border-radius:6px;padding:10px;margin-bottom:8px;font-size:13px}
.auth-wrap{max-width:380px;margin:80px auto}.auth-wrap .brand{text-align:center;font-size:24px;font-weight:700;color:var(--brand);margin-bottom:24px}
.nav-toggle{display:none;background:none;border:none;font-size:20px;cursor:pointer;padding:6px 10px;color:var(--ink)}
@media (max-width: 900px){
  .nav-inner{flex-wrap:wrap;gap:10px}
  .nav-toggle{display:inline-block;order:1;margin-left:auto}
  .nav-links{display:none;flex-basis:100%;flex-direction:column;gap:6px;order:3}
  .nav-links a{padding:10px 4px;border-bottom:1px solid var(--line)}
  body.nav-open .nav-links{display:flex}
  .nav-user{display:none}
  .container{padding:14px}
  .kanban{grid-template-columns:1fr}
  table{font-size:12px}
  .cal{grid-template-columns:repeat(7, minmax(40px, 1fr));gap:2px}
  .cal .day{min-height:80px;font-size:10px;padding:3px}
}
.nav-links{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.bell{position:relative;font-size:18px;padding:6px 10px;text-decoration:none;color:inherit}
.bell-badge{position:absolute;top:0;right:0;background:#dc2626;color:#fff;font-size:10px;font-weight:700;padding:1px 5px;border-radius:10px;min-width:16px;text-align:center}
.pager{display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin-top:14px}
.pager .page{padding:5px 10px;border:1px solid var(--line);border-radius:4px;text-decoration:none;color:var(--ink);font-size:12px}
.pager .page.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.pager .page.disabled{opacity:0.4;pointer-events:none}

/* === Portal 2.0 (customer-facing) === */
.portal-wrap{max-width:920px;margin:0 auto;padding:18px 14px 60px}
.portal-hero{background:linear-gradient(135deg,#2563eb 0%,#1e3a8a 100%);color:#fff;border-radius:14px;padding:26px 22px;margin-bottom:18px;box-shadow:0 6px 20px rgba(37,99,235,.18)}
.portal-hero h1{margin:0 0 4px;font-size:22px;color:#fff}
.portal-hero p{margin:0;color:rgba(255,255,255,.85);font-size:13.5px}
.portal-summary{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:10px;margin-top:18px}
.portal-summary .s{background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.18);border-radius:10px;padding:10px 12px;backdrop-filter:blur(2px)}
.portal-summary .s .lbl{font-size:11px;color:rgba(255,255,255,.7);text-transform:uppercase;letter-spacing:.5px}
.portal-summary .s .val{font-size:20px;font-weight:700;margin-top:2px}
.portal-toast{position:fixed;top:18px;left:50%;transform:translateX(-50%);background:#059669;color:#fff;padding:12px 22px;border-radius:30px;font-weight:600;font-size:14px;box-shadow:0 8px 25px rgba(5,150,105,.3);z-index:1000;animation:portal-toast-in .3s ease}
.portal-toast.danger{background:#dc2626;box-shadow:0 8px 25px rgba(220,38,38,.3)}
@keyframes portal-toast-in{from{opacity:0;transform:translate(-50%,-12px)}to{opacity:1;transform:translate(-50%,0)}}
.portal-card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:12px;box-shadow:0 1px 3px rgba(0,0,0,.04)}
.portal-card .head{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.portal-card .notice-no{font-weight:700;font-size:15px;color:var(--ink)}
.portal-card .meta{font-size:12px;color:var(--muted);margin-top:2px}
.portal-card .amount{font-size:20px;font-weight:700;color:var(--ink);text-align:right}
.portal-card .amount small{display:block;font-size:11px;color:var(--muted);font-weight:400}
.portal-card .grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:10px 0;font-size:13px}
.portal-card .grid2 .lbl{color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.4px}
.portal-card .grid2 .val{margin-top:1px;color:var(--ink)}
.portal-stepper{display:flex;align-items:center;margin:12px 0;gap:6px;overflow-x:auto;padding-bottom:4px}
.portal-stepper .step{display:flex;flex-direction:column;align-items:center;flex:1;min-width:64px;font-size:11px;color:var(--muted);text-align:center}
.portal-stepper .step .dot{width:22px;height:22px;border-radius:50%;background:#e5e7eb;border:2px solid #e5e7eb;display:flex;align-items:center;justify-content:center;color:#9ca3af;font-size:11px;font-weight:700;margin-bottom:4px;transition:all .2s}
.portal-stepper .step.done .dot{background:var(--brand);border-color:var(--brand);color:#fff}
.portal-stepper .step.active .dot{background:var(--warn);border-color:var(--warn);color:#fff;animation:pulse 1.6s ease infinite}
.portal-stepper .step.error .dot{background:var(--err);border-color:var(--err);color:#fff}
.portal-stepper .step.done,.portal-stepper .step.active{color:var(--ink);font-weight:600}
.portal-stepper .bar{flex:1;height:2px;background:#e5e7eb;min-width:14px}
.portal-stepper .bar.filled{background:var(--brand)}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(217,119,6,.45)}50%{box-shadow:0 0 0 6px rgba(217,119,6,0)}}
.portal-card .actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.portal-card .actions a.pay{display:inline-flex;align-items:center;gap:6px;background:var(--brand);color:#fff;padding:9px 16px;border-radius:8px;font-weight:600;font-size:13px;text-decoration:none}
.portal-card .actions a.pay:hover{background:var(--brand-dark);text-decoration:none}
.portal-card .actions .btn-ack{background:var(--card);border:1px solid var(--line);color:var(--ink);padding:8px 14px;border-radius:8px;font-size:13px;cursor:pointer}
.portal-card .actions .btn-dispute{background:#fff;border:1px solid #fecaca;color:#dc2626;padding:8px 14px;border-radius:8px;font-size:13px;cursor:pointer}
.portal-dispute{margin-top:10px;padding:14px;background:#fff7ed;border:1px solid #fed7aa;border-radius:10px;display:none}
.portal-dispute.open{display:block}
.portal-dispute label{font-size:12px;font-weight:600;color:#9a3412}
.portal-dispute select,.portal-dispute textarea{width:100%;padding:8px 10px;margin-top:4px;margin-bottom:8px;border:1px solid #fed7aa;border-radius:6px;font-size:13px;font-family:inherit;background:#fff}
.portal-dispute .actions-row{display:flex;gap:8px}
.portal-dispute .btn-cancel{background:transparent;border:1px solid #fed7aa;color:#9a3412;padding:8px 14px;border-radius:6px;font-size:12px;cursor:pointer}
.portal-empty{text-align:center;padding:60px 20px;color:var(--muted)}
.portal-empty .ic{font-size:42px;margin-bottom:8px}
.portal-faq{margin-top:24px}
.portal-faq h2{font-size:15px;margin-bottom:8px;color:var(--ink)}
.portal-faq details{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:12px 14px;margin-bottom:6px;font-size:13px}
.portal-faq details summary{cursor:pointer;font-weight:600;list-style:none}
.portal-faq details summary::-webkit-details-marker{display:none}
.portal-faq details summary::before{content:"▸ ";color:var(--brand);transition:transform .15s}
.portal-faq details[open] summary::before{content:"▾ "}
.portal-faq details p{margin:8px 0 0;color:var(--muted);line-height:1.6}
.portal-footer{text-align:center;color:var(--muted);font-size:11px;padding:30px 14px;line-height:1.7}
.portal-footer a{color:var(--brand)}
.portal-pager{display:flex;gap:8px;justify-content:center;margin:18px 0}
.portal-pager a,.portal-pager span{padding:7px 13px;border:1px solid var(--line);border-radius:6px;background:var(--card);text-decoration:none;font-size:13px;color:var(--ink)}
.portal-pager .cur{background:var(--brand);color:#fff;border-color:var(--brand)}
.portal-pager .dis{opacity:.4;pointer-events:none}
@media (max-width:600px){
  .portal-card .head .amount{text-align:left;font-size:18px}
  .portal-card .head{flex-direction:column}
  .portal-card .grid2{grid-template-columns:1fr}
  .portal-stepper .step{font-size:10px;min-width:54px}
}

/* === Toast notification system (replaces flash) === */
.toast-container{position:fixed;top:20px;right:20px;display:flex;flex-direction:column;gap:8px;z-index:9999;max-width:380px;pointer-events:none}
.toast{pointer-events:auto;background:var(--card);color:var(--ink);border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:8px;padding:12px 14px;box-shadow:0 6px 18px rgba(0,0,0,.08);animation:toast-in .25s ease;display:flex;align-items:flex-start;gap:10px;min-width:280px}
.toast.success{border-left-color:var(--ok)}
.toast.error{border-left-color:var(--err)}
.toast.warning{border-left-color:var(--warn)}
.toast .ic{font-size:18px;line-height:1;flex-shrink:0}
.toast .body{flex:1;font-size:13px;line-height:1.45}
.toast .x{background:none;border:none;cursor:pointer;color:var(--muted);font-size:18px;line-height:1;padding:0 2px}
.toast .x:hover{color:var(--ink)}
.toast.dismissing{animation:toast-out .2s ease forwards}
@keyframes toast-in{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:translateX(0)}}
@keyframes toast-out{from{opacity:1;transform:translateX(0)}to{opacity:0;transform:translateX(20px)}}
@media (max-width:500px){.toast-container{left:10px;right:10px;top:10px;max-width:none}.toast{min-width:0}}

/* === Action Center (dashboard) === */
.action-center{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin-bottom:18px}
.action-tile{display:block;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px 16px;text-decoration:none;color:var(--ink);transition:all .15s;border-left:4px solid var(--brand)}
.action-tile:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgba(0,0,0,.06);text-decoration:none}
.action-tile.urgent{border-left-color:var(--err)}
.action-tile.warning{border-left-color:var(--warn)}
.action-tile.ok{border-left-color:var(--ok);opacity:.7}
.action-tile .lbl{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px;font-weight:600}
.action-tile .val{font-size:24px;font-weight:700;margin-top:2px}
.action-tile .val small{font-size:12px;font-weight:400;color:var(--muted);margin-left:4px}
.action-tile .hint{font-size:11px;color:var(--muted);margin-top:2px}
.action-tile.ok .hint{color:var(--ok);font-weight:600}

/* === Error pages === */
.error-page{min-height:80vh;display:flex;align-items:center;justify-content:center;padding:20px}
.error-page .box{text-align:center;max-width:480px}
.error-page .code{font-size:84px;font-weight:800;color:var(--brand);line-height:1;margin-bottom:8px;background:linear-gradient(135deg,#2563eb 0%,#7c3aed 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.error-page h1{margin:0 0 10px;font-size:22px}
.error-page p{color:var(--muted);margin:0 0 20px;line-height:1.6}
.error-page .btn{display:inline-block;margin:0 4px}

/* === Help shortcuts modal === */
.kbd-modal{position:fixed;inset:0;background:rgba(0,0,0,.5);display:none;align-items:center;justify-content:center;z-index:9000;padding:20px}
.kbd-modal.open{display:flex;animation:kbd-fade-in .15s ease}
@keyframes kbd-fade-in{from{opacity:0}to{opacity:1}}
.kbd-modal .panel{background:var(--card);border-radius:12px;max-width:520px;width:100%;max-height:80vh;overflow:auto;box-shadow:0 20px 50px rgba(0,0,0,.3)}
.kbd-modal .panel h2{margin:0;padding:18px 22px;border-bottom:1px solid var(--line);font-size:16px;display:flex;align-items:center;gap:10px}
.kbd-modal .panel h2 .x{margin-left:auto;background:none;border:none;font-size:24px;cursor:pointer;color:var(--muted);line-height:1}
.kbd-modal .panel .body{padding:14px 22px}
.kbd-modal .panel section{margin-bottom:18px}
.kbd-modal .panel section h3{margin:0 0 8px;font-size:11px;text-transform:uppercase;letter-spacing:1px;color:var(--muted)}
.kbd-modal .panel .row{display:flex;justify-content:space-between;align-items:center;padding:6px 0;border-bottom:1px dashed var(--line);font-size:13px}
.kbd-modal .panel .row:last-child{border-bottom:none}
.kbd-modal .panel kbd{background:var(--row-alt);border:1px solid var(--line);border-bottom-width:2px;border-radius:4px;padding:2px 7px;font-family:ui-monospace,SFMono-Regular,monospace;font-size:11.5px;font-weight:600;color:var(--ink)}

/* === Responsive tables (stack to cards under 600px) === */
@media (max-width:600px){
  .responsive-table thead{display:none}
  .responsive-table,.responsive-table tbody,.responsive-table tr,.responsive-table td{display:block;width:100%}
  .responsive-table tr{background:var(--card);border:1px solid var(--line);border-radius:8px;margin-bottom:10px;padding:8px 12px}
  .responsive-table td{border:none;padding:6px 0;display:flex;justify-content:space-between;align-items:flex-start;gap:10px;text-align:right;font-size:13px}
  .responsive-table td::before{content:attr(data-label);color:var(--muted);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.4px;flex-shrink:0;text-align:left}
  .responsive-table td:empty{display:none}
  .responsive-table td.actions,.responsive-table td:last-child{justify-content:flex-end;border-top:1px dashed var(--line);padding-top:10px;margin-top:4px}
  .responsive-table td.actions::before,.responsive-table td:last-child::before{content:""}
}

/* === Confirmation modal === */
.confirm-modal{position:fixed;inset:0;background:rgba(0,0,0,.5);display:none;align-items:center;justify-content:center;z-index:9500;padding:20px}
.confirm-modal.open{display:flex;animation:kbd-fade-in .15s ease}
.confirm-modal .panel{background:var(--card);border-radius:12px;max-width:400px;width:100%;box-shadow:0 20px 50px rgba(0,0,0,.3);overflow:hidden}
.confirm-modal .panel .body{padding:24px 22px}
.confirm-modal .panel .ic{font-size:36px;margin-bottom:10px;line-height:1}
.confirm-modal .panel.danger .ic{color:var(--err)}
.confirm-modal .panel.warn .ic{color:var(--warn)}
.confirm-modal .panel h3{margin:0 0 8px;font-size:17px;color:var(--ink)}
.confirm-modal .panel p{margin:0 0 4px;color:var(--muted);line-height:1.55;font-size:13.5px}
.confirm-modal .panel .acts{padding:14px 22px;background:var(--row-alt);display:flex;gap:8px;justify-content:flex-end}
.confirm-modal .panel .acts .btn{min-width:80px}

/* === Command palette === */
.cmdk{position:fixed;inset:0;background:rgba(0,0,0,.5);display:none;align-items:flex-start;justify-content:center;z-index:9700;padding-top:10vh}
.cmdk.open{display:flex;animation:kbd-fade-in .12s ease}
.cmdk .panel{background:var(--card);border-radius:12px;max-width:540px;width:92%;max-height:70vh;overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.4);display:flex;flex-direction:column}
.cmdk .panel input{width:100%;padding:14px 18px;border:none;border-bottom:1px solid var(--line);font-size:15px;background:var(--card);color:var(--ink);outline:none;border-radius:0}
.cmdk .panel .results{overflow-y:auto;flex:1;padding:6px 0}
.cmdk .panel .item{padding:9px 18px;display:flex;align-items:center;gap:10px;cursor:pointer;font-size:13.5px;color:var(--ink);text-decoration:none}
.cmdk .panel .item:hover,.cmdk .panel .item.sel{background:var(--row-alt);text-decoration:none}
.cmdk .panel .item .ic{width:22px;font-size:16px;text-align:center;flex-shrink:0}
.cmdk .panel .item .grow{flex:1}
.cmdk .panel .item .hint{font-size:11px;color:var(--muted)}
.cmdk .panel .empty{padding:30px 18px;text-align:center;color:var(--muted);font-size:13px}
.cmdk .panel .footer{padding:8px 18px;border-top:1px solid var(--line);font-size:11px;color:var(--muted);background:var(--row-alt);display:flex;gap:14px;flex-wrap:wrap}
.cmdk .panel .footer kbd{background:var(--card);border:1px solid var(--line);border-radius:3px;padding:1px 6px;font-family:ui-monospace,monospace;font-size:10px}

/* === Impersonation banner === */
.impersonate-banner{background:linear-gradient(135deg,#dc2626 0%,#7c2d12 100%);color:#fff;padding:8px 16px;text-align:center;font-size:13px;font-weight:600;display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap}
.impersonate-banner a,.impersonate-banner button{color:#fff;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.3);padding:4px 12px;border-radius:5px;text-decoration:none;font-size:12px;cursor:pointer}
.impersonate-banner a:hover,.impersonate-banner button:hover{background:rgba(255,255,255,.28);text-decoration:none;color:#fff}
.impersonate-banner .ic{font-size:16px}

/* === Bell pulse on new notif === */
.bell-pulse{animation:bell-shake .5s ease 2}
@keyframes bell-shake{0%,100%{transform:rotate(0)}25%{transform:rotate(-15deg)}75%{transform:rotate(15deg)}}