@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

*{margin:0;padding:0;box-sizing:border-box;}
:root{--font-main:'IBM Plex Sans',sans-serif;--font-mono:'JetBrains Mono',monospace;--black:#000;--white:#fff;--gray-50:#fafafa;--gray-100:#f5f5f5;--gray-200:#eee;--gray-300:#ddd;--gray-400:#bbb;--gray-500:#888;--gray-600:#666;--gray-700:#444;--gray-800:#222;--green:#1b8a2a;--amber:#c77d00;--red:#c62828;--sidebar-w:240px;--topbar-h:50px;}
body{font-family:var(--font-main);font-size:13px;color:var(--gray-800);background:var(--gray-100);line-height:1.5;}
a{color:var(--black);text-decoration:none;}
a:hover{text-decoration:underline;}

/* Layout */
.app-wrapper{display:flex;min-height:100vh;}
.sidebar{width:var(--sidebar-w);background:var(--white);border-right:1px solid var(--gray-300);position:fixed;top:0;left:0;bottom:0;z-index:100;display:flex;flex-direction:column;transition:transform .2s;}
.sidebar .logo{padding:12px 16px;font-size:15px;font-weight:700;border-bottom:1px solid var(--gray-200);letter-spacing:-.3px;}
.sidebar .logo span{color:var(--gray-500);font-weight:400;font-size:11px;display:block;}
.sidebar nav{flex:1;overflow-y:auto;padding:8px 0;}
.sidebar nav a{display:flex;align-items:center;gap:10px;padding:9px 18px;font-size:13px;color:var(--gray-700);transition:background .15s;}
.sidebar nav a:hover{background:var(--gray-100);text-decoration:none;}
.sidebar nav a.active{background:var(--gray-200);color:var(--black);font-weight:600;}
.sidebar nav a svg{width:16px;height:16px;flex-shrink:0;}
.sidebar .nav-section{padding:14px 18px 4px;font-size:10px;text-transform:uppercase;font-weight:700;color:var(--gray-500);letter-spacing:.8px;}
.sidebar nav a .badge-count{margin-left:auto;background:var(--red);color:#fff;font-size:10px;padding:1px 6px;border-radius:8px;font-family:var(--font-mono);}

.main-content{margin-left:var(--sidebar-w);flex:1;display:flex;flex-direction:column;}
.topbar{height:var(--topbar-h);background:var(--white);border-bottom:1px solid var(--gray-300);display:flex;align-items:center;padding:0 20px;gap:14px;position:sticky;top:0;z-index:90;}
.topbar .search-box{flex:1;max-width:400px;}
.topbar .search-box input{width:100%;border:1px solid var(--gray-300);padding:6px 12px;font-size:12px;font-family:var(--font-main);border-radius:3px;background:var(--gray-50);}
.topbar .search-box input:focus{outline:none;border-color:var(--gray-600);}
.topbar .topbar-right{display:flex;align-items:center;gap:14px;margin-left:auto;}
.topbar .notif-btn{position:relative;background:none;border:none;cursor:pointer;padding:4px;}
.topbar .notif-btn svg{width:18px;height:18px;}
.topbar .notif-btn .notif-dot{position:absolute;top:-2px;right:-4px;min-width:16px;height:16px;background:var(--red);border-radius:8px;font-size:9px;font-weight:700;color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);padding:0 4px;}
.sidebar-toggle{background:none;border:none;font-size:18px;cursor:pointer;display:none;padding:4px 8px;color:var(--gray-600);}
@media(max-width:768px){.sidebar-toggle{display:inline-block;}}
.topbar .user-menu{display:flex;align-items:center;gap:8px;cursor:pointer;position:relative;}
.topbar .user-menu .avatar{width:28px;height:28px;border-radius:50%;background:var(--gray-300);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:var(--gray-700);}
.topbar .user-menu .name{font-size:12px;font-weight:500;}
.user-dropdown{display:none;position:absolute;top:100%;right:0;background:var(--white);border:1px solid var(--gray-300);box-shadow:0 4px 12px rgba(0,0,0,.08);border-radius:3px;min-width:160px;z-index:200;margin-top:6px;}
.user-dropdown.show{display:block;}
.user-dropdown a{display:block;padding:8px 14px;font-size:12px;color:var(--gray-700);}
.user-dropdown a:hover{background:var(--gray-100);text-decoration:none;}

.page-body{padding:20px;flex:1;}
.breadcrumb{font-size:11px;color:var(--gray-500);margin-bottom:14px;}
.breadcrumb a{color:var(--gray-600);}
.breadcrumb span{margin:0 4px;}
.page-title{font-size:18px;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:12px;}
.page-title .subtitle{font-size:12px;font-weight:400;color:var(--gray-500);}

/* Cards */
.card{background:var(--white);border:1px solid var(--gray-200);border-radius:4px;box-shadow:0 1px 3px rgba(0,0,0,.04);}
.card-header{padding:12px 16px;border-bottom:1px solid var(--gray-200);font-weight:600;font-size:13px;display:flex;align-items:center;justify-content:space-between;}
.card-body{padding:16px;}
.card-footer{padding:10px 16px;border-top:1px solid var(--gray-200);font-size:12px;}

/* Summary Cards */
.summary-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin-bottom:20px;}
.summary-card{background:var(--white);border:1px solid var(--gray-200);border-radius:4px;padding:14px 16px;box-shadow:0 1px 3px rgba(0,0,0,.04);}
.summary-card .label{font-size:10px;text-transform:uppercase;font-weight:700;color:var(--gray-500);letter-spacing:.5px;margin-bottom:4px;}
.summary-card .value{font-size:22px;font-weight:700;font-family:var(--font-mono);}
.summary-card .sub{font-size:11px;color:var(--gray-500);margin-top:2px;}

/* Tables */
.table-wrap{overflow-x:auto;}
table{width:100%;border-collapse:collapse;font-size:12px;}
table thead th{background:var(--black);color:var(--white);padding:8px 10px;text-align:left;font-weight:600;font-size:11px;text-transform:uppercase;letter-spacing:.3px;white-space:nowrap;}
table tbody tr{border-bottom:1px solid var(--gray-200);}
table tbody tr:nth-child(even){background:var(--gray-50);}
table tbody tr:hover{background:var(--gray-100);}
table tbody td{padding:7px 10px;vertical-align:middle;}
table .num{text-align:right;font-family:var(--font-mono);}
table .mono{font-family:var(--font-mono);}
table .actions{white-space:nowrap;}
table .actions a,table .actions button{margin-right:4px;}

/* Badges */
.badge{display:inline-block;padding:2px 8px;border-radius:3px;font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.3px;}
.badge-dark{background:var(--gray-800);color:var(--white);}
.badge-green{background:var(--green);color:var(--white);}
.badge-amber{background:var(--amber);color:var(--white);}
.badge-red{background:var(--red);color:var(--white);}
.badge-gray{background:var(--gray-400);color:var(--white);}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;font-size:12px;font-weight:600;border:1px solid transparent;border-radius:3px;cursor:pointer;font-family:var(--font-main);transition:opacity .15s;text-decoration:none;}
.btn:hover{opacity:.85;text-decoration:none;}
.btn-primary{background:var(--black);color:var(--white);border-color:var(--black);}
.btn-secondary{background:var(--white);color:var(--black);border-color:var(--black);}
.btn-danger{background:var(--red);color:var(--white);border-color:var(--red);}
.btn-success{background:var(--green);color:var(--white);border-color:var(--green);}
.btn-sm{padding:4px 10px;font-size:11px;}
.btn:disabled,.btn.disabled{opacity:.4;cursor:not-allowed;}

/* Forms */
.form-group{margin-bottom:14px;}
.form-group label{display:block;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--gray-600);margin-bottom:4px;}
.form-control{width:100%;padding:7px 10px;border:1px solid var(--gray-300);border-radius:3px;font-size:13px;font-family:var(--font-main);background:var(--white);transition:border-color .15s;}
.form-control:focus{outline:none;border-color:var(--gray-700);}
select.form-control{appearance:auto;}
textarea.form-control{resize:vertical;min-height:70px;}
.form-row{display:flex;gap:14px;}
.form-row .form-group{flex:1;}
.form-check{display:flex;align-items:center;gap:6px;margin-bottom:6px;}
.form-check input[type="checkbox"]{width:15px;height:15px;accent-color:var(--black);}
.form-check label{font-size:12px;text-transform:none;font-weight:400;margin-bottom:0;}
.form-inline{display:flex;align-items:flex-end;gap:10px;}
.form-inline .form-group{margin-bottom:0;}

/* Modal */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:500;align-items:center;justify-content:center;}
.modal-overlay.show{display:flex;}
.modal{background:var(--white);border-radius:4px;width:90%;max-width:560px;max-height:85vh;overflow-y:auto;box-shadow:0 8px 30px rgba(0,0,0,.15);}
.modal-header{padding:14px 18px;border-bottom:1px solid var(--gray-200);font-weight:700;font-size:14px;display:flex;justify-content:space-between;align-items:center;}
.modal-header .close-btn{background:none;border:none;font-size:20px;cursor:pointer;color:var(--gray-500);line-height:1;}
.modal-body{padding:18px;}
.modal-footer{padding:12px 18px;border-top:1px solid var(--gray-200);display:flex;justify-content:flex-end;gap:8px;}

/* Toast */
.toast-container{position:fixed;top:60px;right:20px;z-index:600;display:flex;flex-direction:column;gap:8px;}
.toast{padding:10px 16px;border-radius:3px;font-size:12px;font-weight:500;box-shadow:0 2px 8px rgba(0,0,0,.1);animation:slideIn .3s ease;min-width:250px;}
.toast-success{background:var(--green);color:#fff;}
.toast-error{background:var(--red);color:#fff;}
.toast-warning{background:var(--amber);color:#fff;}
@keyframes slideIn{from{transform:translateX(100%);opacity:0;}to{transform:translateX(0);opacity:1;}}

/* Pagination */
.pagination{display:flex;gap:4px;margin-top:14px;align-items:center;}
.pagination a,.pagination span{display:inline-flex;align-items:center;justify-content:center;min-width:30px;height:28px;padding:0 8px;border:1px solid var(--gray-300);border-radius:3px;font-size:11px;font-family:var(--font-mono);color:var(--gray-700);}
.pagination a:hover{background:var(--gray-100);text-decoration:none;}
.pagination .active{background:var(--black);color:var(--white);border-color:var(--black);}

/* Tabs */
.tabs{display:flex;border-bottom:2px solid var(--gray-200);margin-bottom:16px;}
.tab{padding:8px 16px;font-size:12px;font-weight:600;color:var(--gray-500);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;transition:color .15s;}
.tab:hover{color:var(--black);}
.tab.active{color:var(--black);border-bottom-color:var(--black);}
.tab-content{display:none;}
.tab-content.active{display:block;}

/* Steps / Wizard */
.wizard-steps{display:flex;margin-bottom:24px;border-bottom:1px solid var(--gray-200);padding-bottom:16px;}
.wizard-step{flex:1;text-align:center;position:relative;padding:0 10px;}
.wizard-step .step-num{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;border:2px solid var(--gray-300);font-size:12px;font-weight:700;font-family:var(--font-mono);color:var(--gray-500);margin-bottom:4px;}
.wizard-step.active .step-num{border-color:var(--black);background:var(--black);color:var(--white);}
.wizard-step.done .step-num{border-color:var(--green);background:var(--green);color:var(--white);}
.wizard-step .step-label{display:block;font-size:10px;text-transform:uppercase;font-weight:600;color:var(--gray-500);letter-spacing:.3px;}
.wizard-step.active .step-label{color:var(--black);}
.wizard-panel{display:none;}
.wizard-panel.active{display:block;}

/* Activity */
.activity-list{list-style:none;}
.activity-list li{padding:8px 0;border-bottom:1px solid var(--gray-200);font-size:12px;display:flex;gap:10px;align-items:flex-start;}
.activity-list li:last-child{border-bottom:none;}
.activity-list .time{font-family:var(--font-mono);font-size:10px;color:var(--gray-500);white-space:nowrap;min-width:110px;}
.activity-list .dot{width:8px;height:8px;border-radius:50%;background:var(--gray-400);margin-top:4px;flex-shrink:0;}

/* PDF Viewer */
.pdf-container{background:var(--gray-200);border:1px solid var(--gray-300);border-radius:4px;position:relative;overflow:auto;max-height:70vh;}
.pdf-page-wrap{position:relative;margin:10px auto;background:var(--white);box-shadow:0 1px 4px rgba(0,0,0,.1);}
.pdf-nav{display:flex;align-items:center;justify-content:center;gap:10px;padding:8px;background:var(--white);border-top:1px solid var(--gray-200);}
.pdf-nav .btn{padding:4px 12px;}
.pdf-nav span{font-family:var(--font-mono);font-size:12px;}

/* Signature Zone */
.sig-zone{position:absolute;border:2px dashed;border-radius:3px;cursor:move;display:flex;align-items:center;justify-content:center;font-size:9px;font-weight:700;text-transform:uppercase;opacity:.7;transition:opacity .15s;}
.sig-zone:hover{opacity:1;}
.sig-zone .zone-label{pointer-events:none;text-shadow:0 1px 2px rgba(255,255,255,.8);}
.sig-zone .zone-delete{position:absolute;top:-8px;right:-8px;width:16px;height:16px;border-radius:50%;background:var(--red);color:#fff;border:none;font-size:10px;cursor:pointer;display:flex;align-items:center;justify-content:center;line-height:1;}
.sig-zone .zone-resize{position:absolute;bottom:-4px;right:-4px;width:10px;height:10px;background:var(--gray-600);cursor:se-resize;}

/* Signing methods */
.sign-method-card{border:1px solid var(--gray-200);border-radius:4px;padding:16px;text-align:center;cursor:pointer;transition:border-color .15s;}
.sign-method-card:hover,.sign-method-card.selected{border-color:var(--black);}
.sign-method-card h4{font-size:13px;margin-bottom:4px;}
.sign-method-card p{font-size:11px;color:var(--gray-500);}

/* Utility */
.text-center{text-align:center;}
.text-right{text-align:right;}
.text-muted{color:var(--gray-500);}
.text-red{color:var(--red);}
.text-green{color:var(--green);}
.mb-0{margin-bottom:0;}
.mb-8{margin-bottom:8px;}
.mb-16{margin-bottom:16px;}
.mt-16{margin-top:16px;}
.mt-8{margin-top:8px;}
.flex{display:flex;}
.flex-between{display:flex;justify-content:space-between;align-items:center;}
.gap-8{gap:8px;}
.gap-12{gap:12px;}
.hidden{display:none!important;}

/* Login */
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--gray-100);}
.login-box{background:var(--white);border:1px solid var(--gray-200);border-radius:4px;padding:36px;width:100%;max-width:380px;box-shadow:0 2px 8px rgba(0,0,0,.06);}
.login-box h1{font-size:20px;margin-bottom:4px;}
.login-box .sub{font-size:12px;color:var(--gray-500);margin-bottom:24px;}
.login-box .error-msg{background:#fdecea;border:1px solid #f5c6cb;color:var(--red);padding:8px 12px;border-radius:3px;font-size:12px;margin-bottom:14px;}

/* Responsive */
@media(max-width:768px){
    .sidebar{transform:translateX(-100%);}
    .sidebar.open{transform:translateX(0);}
    .main-content{margin-left:0;}
    .form-row{flex-direction:column;}
    .summary-cards{grid-template-columns:repeat(2,1fr);}
}

/* Signer colors */
.signer-color-0{border-color:#1a73e8;color:#1a73e8;background:rgba(26,115,232,.08);}
.signer-color-1{border-color:#e8710a;color:#e8710a;background:rgba(232,113,10,.08);}
.signer-color-2{border-color:#9334e6;color:#9334e6;background:rgba(147,52,230,.08);}
.signer-color-3{border-color:#e52592;color:#e52592;background:rgba(229,37,146,.08);}
.signer-color-4{border-color:#12b5cb;color:#12b5cb;background:rgba(18,181,203,.08);}

/* Toggle */
.toggle-switch{position:relative;display:inline-block;width:40px;height:22px;}
.toggle-switch input{opacity:0;width:0;height:0;}
.toggle-slider{position:absolute;inset:0;background:var(--gray-300);border-radius:11px;cursor:pointer;transition:.2s;}
.toggle-slider:before{content:'';position:absolute;height:16px;width:16px;left:3px;bottom:3px;background:#fff;border-radius:50%;transition:.2s;}
input:checked+.toggle-slider{background:var(--black);}
input:checked+.toggle-slider:before{transform:translateX(18px);}

/* Tooltip */
.tooltip-wrap{position:relative;display:inline-block;}
.tooltip-wrap .tooltip-text{visibility:hidden;background:var(--gray-800);color:#fff;font-size:10px;padding:4px 8px;border-radius:3px;position:absolute;bottom:125%;left:50%;transform:translateX(-50%);white-space:nowrap;z-index:10;}
.tooltip-wrap:hover .tooltip-text{visibility:visible;}

/* Signature Pad canvas */
.sig-pad-wrap{border:1px solid var(--gray-300);border-radius:4px;background:var(--white);}
.sig-pad-wrap canvas{display:block;width:100%;height:200px;}