/* ========== RESET & BASE ========== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#0f172a;--bg2:#1e293b;--bg3:#334155;
  --surface:#ffffff;--surface2:#f1f5f9;--surface3:#e2e8f0;
  --text:#0f172a;--text2:#475569;--text3:#94a3b8;
  --accent:#10b981;--accent2:#059669;--accent-light:#d1fae5;
  --indigo:#6366f1;--indigo2:#4f46e5;--indigo-light:#e0e7ff;
  --danger:#ef4444;--danger-light:#fee2e2;
  --warning:#f59e0b;--warning-light:#fef3c7;
  --blue:#3b82f6;--blue-light:#dbeafe;
  --radius:12px;--radius-sm:8px;--radius-xs:6px;
  --shadow:0 1px 3px rgba(0,0,0,.08),0 4px 12px rgba(0,0,0,.04);
  --shadow-lg:0 4px 24px rgba(0,0,0,.12);
  --transition:all .2s ease;
  --sidebar-w:260px;--titlebar-h:38px;
}
html{font-size:14px}
body{font-family:'Inter',system-ui,sans-serif;background:var(--surface2);color:var(--text);overflow:hidden;height:100vh;touch-action:manipulation}
a{text-decoration:none;color:inherit}
button{cursor:pointer;border:none;background:none;font-family:inherit}
input,select,textarea{font-family:inherit;font-size:.9rem}
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--bg3);border-radius:3px}

/* ========== LOGIN ========== */
.login-screen{position:fixed;inset:0;background:linear-gradient(135deg,#0f172a 0%,#1e293b 50%,#0f172a 100%);display:flex;align-items:center;justify-content:center;z-index:9999}
.login-container{position:relative;z-index:2;width:400px;padding:48px 40px;background:rgba(255,255,255,.05);backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.1);border-radius:24px}
.login-brand{text-align:center;margin-bottom:32px}
.login-logo{width:64px;height:64px;background:linear-gradient(135deg,var(--accent),var(--indigo));border-radius:18px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.login-logo .material-icons-round{font-size:32px;color:#fff}
.login-brand h1{color:#fff;font-size:1.8rem;font-weight:700}
.login-brand h1 span{color:var(--accent)}
.login-brand p{color:var(--text3);margin-top:4px;font-size:.85rem}
.login-form h2{color:#fff;font-size:1.1rem;margin-bottom:20px;text-align:center}
.login-form .form-group{position:relative;margin-bottom:16px}
.login-form .input-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text3);font-size:20px;z-index:10}
.login-form input{width:100%;padding:14px 16px 14px 52px !important;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-sm);color:#fff;font-size:1rem;transition:var(--transition);position:relative}
.login-form input:focus{outline:none;border-color:var(--accent);background:rgba(255,255,255,.12)}
.login-form input::placeholder{color:var(--text3)}
.error-text{color:var(--danger);font-size:.8rem;text-align:center;margin-top:12px;min-height:20px}
.login-decoration{position:fixed;inset:0;overflow:hidden;z-index:1}
.deco-circle{position:absolute;border-radius:50%;filter:blur(80px);opacity:.15}
.c1{width:500px;height:500px;background:var(--accent);top:-100px;right:-100px;animation:float 8s ease-in-out infinite}
.c2{width:400px;height:400px;background:var(--indigo);bottom:-50px;left:-50px;animation:float 10s ease-in-out infinite reverse}
.c3{width:300px;height:300px;background:var(--blue);top:50%;left:50%;animation:float 12s ease-in-out infinite}
@keyframes float{0%,100%{transform:translate(0,0)}50%{transform:translate(30px,-30px)}}

/* ========== BUTTONS ========== */
.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border-radius:var(--radius-sm);font-weight:600;font-size:.85rem;transition:var(--transition);white-space:nowrap}
.btn .material-icons-round{font-size:18px}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 16px rgba(16,185,129,.3)}
.btn-outline{border:1.5px solid var(--surface3);color:var(--text2);background:var(--surface)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover{background:#dc2626}
.btn-sm{padding:6px 14px;font-size:.8rem}
.btn-full{width:100%;justify-content:center;padding:14px}
.btn-icon{width:36px;height:36px;padding:0;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-xs);color:var(--text2)}
.btn-icon:hover{background:var(--surface2);color:var(--accent)}

/* ========== TITLEBAR ========== */
.titlebar{position:fixed;top:0;left:0;right:0;height:var(--titlebar-h);background:var(--bg);display:flex;align-items:center;justify-content:space-between;z-index:100;-webkit-app-region:drag;padding:0 8px 0 16px}
.titlebar-drag{display:flex;align-items:center;gap:8px}
.titlebar-icon{color:var(--accent);font-size:18px}
.titlebar-text{color:#fff;font-size:.8rem;font-weight:600;opacity:.7}
.titlebar-controls{display:flex;-webkit-app-region:no-drag}
.tb-btn{width:40px;height:var(--titlebar-h);display:flex;align-items:center;justify-content:center;color:var(--text3);transition:var(--transition)}
.tb-btn:hover{background:rgba(255,255,255,.1);color:#fff}
.tb-close:hover{background:var(--danger);color:#fff}
.tb-btn .material-icons-round{font-size:16px}

/* ========== APP LAYOUT ========== */
.app{display:flex;height:100vh;padding-top:var(--titlebar-h)}

/* ========== SIDEBAR ========== */
.sidebar{width:var(--sidebar-w);background:var(--bg);display:flex;flex-direction:column;transition:width .3s ease;overflow:hidden;flex-shrink:0;border-right:1px solid rgba(255,255,255,.06)}
.sidebar.collapsed{width:72px}
.sidebar-header{display:flex;align-items:center;gap:12px;padding:20px 16px 16px}
.sidebar-logo{width:40px;height:40px;background:linear-gradient(135deg,var(--accent),var(--indigo));border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.sidebar-logo .material-icons-round{color:#fff;font-size:22px}
.sidebar-brand h2{color:#fff;font-size:1rem;font-weight:700;white-space:nowrap}
.sidebar-brand h2 span{color:var(--accent)}
.sidebar-brand small{color:var(--text3);font-size:.7rem}
.sidebar-toggle{color:var(--text3);padding:4px;margin-left:auto;display:none}
.sidebar-nav{flex:1;padding:8px;display:flex;flex-direction:column;gap:2px;overflow-y:auto}
.nav-item{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:var(--radius-sm);color:var(--text3);transition:var(--transition);white-space:nowrap}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-item.active{background:linear-gradient(135deg,rgba(16,185,129,.15),rgba(99,102,241,.1));color:var(--accent)}
.nav-item.active .material-icons-round{color:var(--accent)}
.nav-item .material-icons-round{font-size:22px;flex-shrink:0}
.nav-text{font-size:.85rem;font-weight:500}
.sidebar.collapsed .nav-text,.sidebar.collapsed .sidebar-brand,.sidebar.collapsed .user-details{display:none}
.sidebar-footer{padding:12px;border-top:1px solid rgba(255,255,255,.06);display:flex;align-items:center;gap:10px}
.user-info{display:flex;align-items:center;gap:10px;flex:1;min-width:0}
.user-avatar{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--indigo),var(--accent));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:.85rem;flex-shrink:0}
.user-name{color:#fff;font-size:.82rem;font-weight:600;display:block;overflow:hidden;text-overflow:ellipsis}
.user-role{color:var(--text3);font-size:.7rem;text-transform:capitalize}
.btn-logout{color:var(--text3);padding:8px;border-radius:var(--radius-xs);transition:var(--transition)}
.btn-logout:hover{background:rgba(239,68,68,.15);color:var(--danger)}

/* ========== MAIN CONTENT ========== */
.main-content{flex:1;overflow-y:auto;overflow-x:hidden;padding:24px 28px;scroll-behavior:smooth}
.page{display:none;animation:fadeUp .3s ease}
.page.active{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}

.page-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:24px;flex-wrap:wrap;gap:16px}
.page-header h1{font-size:1.6rem;font-weight:700;color:var(--text)}
.page-subtitle{color:var(--text2);font-size:.85rem;margin-top:2px}
.header-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}

/* ========== CARDS ========== */
.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--surface3);overflow:hidden}
.card-header{padding:16px 20px;border-bottom:1px solid var(--surface3);display:flex;align-items:center;justify-content:space-between}
.card-header h3{display:flex;align-items:center;gap:8px;font-size:.95rem;font-weight:600;color:var(--text)}
.card-header h3 .material-icons-round{font-size:20px;color:var(--accent)}
.card-body{padding:20px}
.card-body.scrollable{max-height:500px;overflow-y:auto}

/* ========== STATS GRID ========== */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-bottom:24px}
.stat-card{background:var(--surface);border-radius:var(--radius);padding:20px;border:1px solid var(--surface3);box-shadow:var(--shadow);transition:var(--transition);position:relative;overflow:hidden}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.stat-card::after{content:'';position:absolute;top:0;left:0;right:0;height:3px}
.stat-card.green::after{background:linear-gradient(90deg,var(--accent),var(--accent2))}
.stat-card.blue::after{background:linear-gradient(90deg,var(--blue),var(--indigo))}
.stat-card.red::after{background:linear-gradient(90deg,var(--danger),#f97316)}
.stat-card.yellow::after{background:linear-gradient(90deg,var(--warning),#f97316)}
.stat-card.indigo::after{background:linear-gradient(90deg,var(--indigo),var(--blue))}
.stat-icon{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.stat-icon.green{background:var(--accent-light);color:var(--accent2)}
.stat-icon.blue{background:var(--blue-light);color:var(--blue)}
.stat-icon.red{background:var(--danger-light);color:var(--danger)}
.stat-icon.yellow{background:var(--warning-light);color:var(--warning)}
.stat-icon.indigo{background:var(--indigo-light);color:var(--indigo)}
.stat-icon .material-icons-round{font-size:22px}
.stat-value{font-size:1.5rem;font-weight:800;color:var(--text);line-height:1.2}
.stat-label{font-size:.78rem;color:var(--text2);margin-top:4px;font-weight:500}

/* ========== DASHBOARD GRID ========== */
.dashboard-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* ========== SEARCH BOX ========== */
.search-box{position:relative;display:flex;align-items:center}
.search-box .material-icons-round{position:absolute;left:12px;color:var(--text3);font-size:20px}
.search-box input{padding:10px 16px 10px 40px;border:1.5px solid var(--surface3);border-radius:var(--radius-sm);background:var(--surface);font-size:.85rem;width:280px;transition:var(--transition)}
.search-box input:focus{outline:none;border-color:var(--accent)}
.search-box.compact input{width:200px;padding:8px 12px 8px 36px;font-size:.8rem}

/* ========== TABLES ========== */
.table-responsive{overflow-x:auto}
table{width:100%;border-collapse:collapse}
th{text-align:left;padding:12px 16px;font-size:.75rem;font-weight:600;color:var(--text2);text-transform:uppercase;letter-spacing:.5px;background:var(--surface2);border-bottom:1px solid var(--surface3)}
td{padding:12px 16px;font-size:.85rem;border-bottom:1px solid var(--surface3);color:var(--text)}
tr:last-child td{border-bottom:none}
tr:hover td{background:rgba(16,185,129,.03)}
.table-actions{display:flex;gap:4px}

/* ========== BADGES ========== */
.badge{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:20px;font-size:.72rem;font-weight:600}
.badge-success{background:var(--accent-light);color:var(--accent2)}
.badge-danger{background:var(--danger-light);color:var(--danger)}
.badge-warning{background:var(--warning-light);color:#b45309}
.badge-info{background:var(--blue-light);color:var(--blue)}
.badge-neutral{background:var(--surface2);color:var(--text2)}

/* ========== FILTER TABS ========== */
.filter-tabs{display:flex;gap:4px;background:var(--surface2);padding:4px;border-radius:var(--radius-sm)}
.filter-tab{padding:7px 16px;border-radius:var(--radius-xs);font-size:.8rem;font-weight:500;color:var(--text2);transition:var(--transition)}
.filter-tab.active{background:var(--surface);color:var(--text);box-shadow:0 1px 3px rgba(0,0,0,.1)}

/* ========== PAYMENTS LAYOUT ========== */
.payments-layout{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* ========== PAYMENT ITEM ========== */
.payment-item{display:flex;align-items:center;gap:12px;padding:14px 16px;border-bottom:1px solid var(--surface3);transition:var(--transition)}
.payment-item:last-child{border-bottom:none}
.payment-item:hover{background:var(--surface2)}
.payment-item .pi-avatar{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.85rem;flex-shrink:0;color:#fff}
.payment-item .pi-info{flex:1;min-width:0}
.payment-item .pi-name{font-weight:600;font-size:.85rem;color:var(--text)}
.payment-item .pi-detail{font-size:.75rem;color:var(--text2);margin-top:2px}
.payment-item .pi-amount{font-weight:700;font-size:.9rem;white-space:nowrap}
.payment-item .pi-amount.positive{color:var(--accent2)}
.payment-item .pi-actions{display:flex;gap:4px}

.pi-behind{border-left:3px solid var(--danger)}
.pi-ok{border-left:3px solid var(--accent)}

/* ========== PENDING PAYMENT CARD ========== */
.pending-card-item{background:var(--surface);border:1px solid var(--surface3);border-radius:var(--radius-sm);padding:14px;margin-bottom:10px;transition:var(--transition)}
.pending-card-item:hover{box-shadow:var(--shadow)}
.pending-card-item.behind{border-left:3px solid var(--danger)}
.pci-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:8px}
.pci-name{font-weight:600;font-size:.9rem}
.pci-product{font-size:.78rem;color:var(--text2)}
.pci-stats{display:flex;gap:16px;margin-bottom:10px;font-size:.78rem;color:var(--text2)}
.pci-stats span{display:flex;align-items:center;gap:4px}
.pci-stats .material-icons-round{font-size:14px}
.pci-progress{height:4px;background:var(--surface3);border-radius:2px;margin-bottom:10px;overflow:hidden}
.pci-progress-bar{height:100%;border-radius:2px;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .3s ease}
.pci-actions{display:flex;justify-content:space-between;align-items:center}

/* ========== REPORT TABS ========== */
.report-tabs{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap}
.report-tab{display:flex;align-items:center;gap:6px;padding:10px 20px;border-radius:var(--radius-sm);font-size:.85rem;font-weight:500;color:var(--text2);background:var(--surface);border:1.5px solid var(--surface3);transition:var(--transition)}
.report-tab:hover{border-color:var(--accent);color:var(--accent)}
.report-tab.active{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;border-color:transparent}

/* ========== TODAY SUMMARY ========== */
.today-summary{display:flex;gap:16px;align-items:center}
.today-stat{display:flex;align-items:center;gap:6px}
.today-stat .label{font-size:.8rem;color:var(--text2)}
.today-stat .value{font-size:1.1rem;font-weight:700;color:var(--accent2)}

/* ========== MODAL ========== */
.modal-overlay{position:fixed;inset:0;background:rgba(15,23,42,.6);backdrop-filter:blur(4px);z-index:1000;display:none;align-items:center;justify-content:center;padding:24px}
.modal-overlay.open{display:flex}
.modal{background:var(--surface);border-radius:var(--radius);width:100%;max-width:560px;max-height:90vh;display:flex;flex-direction:column;box-shadow:var(--shadow-lg);animation:modalIn .25s ease}
@keyframes modalIn{from{opacity:0;transform:scale(.95) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--surface3)}
.modal-header h2{font-size:1.1rem;font-weight:600}
.modal-close{color:var(--text3);padding:4px;border-radius:var(--radius-xs);transition:var(--transition)}
.modal-close:hover{background:var(--surface2);color:var(--text)}
.modal-body{padding:24px;overflow-y:auto;flex:1}

/* ========== FORM ELEMENTS ========== */
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:.8rem;font-weight:600;color:var(--text2);margin-bottom:6px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:10px 14px;border:1.5px solid var(--surface3);border-radius:var(--radius-xs);font-size:.85rem;background:var(--surface);transition:var(--transition);color:var(--text)}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--accent)}
.form-group textarea{resize:vertical;min-height:80px}
.form-group .hint{font-size:.72rem;color:var(--text3);margin-top:4px}
.form-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:8px;padding-top:16px;border-top:1px solid var(--surface3)}

/* ========== TOAST ========== */
.toast-container{position:fixed;bottom:24px;right:24px;z-index:2000;display:flex;flex-direction:column-reverse;gap:8px}
.toast{display:flex;align-items:center;gap:10px;padding:14px 20px;border-radius:var(--radius-sm);background:var(--bg);color:#fff;font-size:.85rem;font-weight:500;box-shadow:var(--shadow-lg);animation:toastIn .3s ease;min-width:280px}
.toast.success{border-left:4px solid var(--accent)}
.toast.error{border-left:4px solid var(--danger)}
.toast.warning{border-left:4px solid var(--warning)}
.toast .material-icons-round{font-size:20px}
.toast.success .material-icons-round{color:var(--accent)}
.toast.error .material-icons-round{color:var(--danger)}
.toast.warning .material-icons-round{color:var(--warning)}
@keyframes toastIn{from{opacity:0;transform:translateX(40px)}to{opacity:1;transform:translateX(0)}}
@keyframes toastOut{to{opacity:0;transform:translateX(40px)}}

/* ========== LOADING / EMPTY ========== */
.loading-placeholder{text-align:center;padding:40px;color:var(--text3);font-size:.9rem}
.empty-state{text-align:center;padding:48px 24px;color:var(--text3)}
.empty-state .material-icons-round{font-size:56px;margin-bottom:12px;opacity:.4}
.empty-state h3{font-size:1rem;color:var(--text2);margin-bottom:6px}
.empty-state p{font-size:.82rem}

/* ========== REPORT SPECIFIC ========== */
.report-table-wrapper{overflow-x:auto}
.profit-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:24px}
.profit-card{padding:20px;border-radius:var(--radius-sm);text-align:center}
.profit-card.income{background:var(--accent-light)}
.profit-card.expense{background:var(--blue-light)}
.profit-card.profit{background:var(--indigo-light)}
.profit-card .pc-value{font-size:1.4rem;font-weight:800}
.profit-card .pc-label{font-size:.78rem;color:var(--text2);margin-top:4px}
.profit-card.income .pc-value{color:var(--accent2)}
.profit-card.expense .pc-value{color:var(--blue)}
.profit-card.profit .pc-value{color:var(--indigo2)}

/* ========== WHATSAPP TEMPLATES MODAL ========== */
.template-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.template-item {
  text-align: left;
  padding: 16px;
  background: var(--surface2);
  border: 1px solid var(--surface3);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.template-item:hover {
  background: var(--accent-light);
  border-color: var(--accent);
  transform: translateY(-2px);
}
.template-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text);
  margin-bottom: 4px;
}
.template-preview {
  font-size: 0.85rem;
  color: var(--text2);
  line-height: 1.4;
}

/* ========== COLLECTOR CARD ========== */
.collector-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.collector-card{border:1px solid var(--surface3);border-radius:var(--radius);padding:20px;transition:var(--transition)}
.collector-card:hover{box-shadow:var(--shadow)}
.cc-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.cc-avatar{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,var(--indigo),var(--accent));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1rem}
.cc-name{font-weight:600;font-size:.95rem}
.cc-role{font-size:.75rem;color:var(--text2);text-transform:capitalize}
.cc-stats{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.cc-stat{text-align:center;padding:10px;background:var(--surface2);border-radius:var(--radius-xs)}
.cc-stat-val{font-size:1rem;font-weight:700;color:var(--text)}
.cc-stat-label{font-size:.7rem;color:var(--text2);margin-top:2px}
.cc-actions{display:flex;gap:8px;margin-top:14px;justify-content:flex-end}

/* ========== RESPONSIVE ========== */
@media(max-width:1100px){
  .dashboard-grid,.payments-layout{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
}
@media(max-width:768px){
  .sidebar{position:fixed;left:-260px;z-index:50;height:calc(100vh - var(--titlebar-h));top:var(--titlebar-h);transition:left .3s ease}
  .sidebar.open{left:0}
  .sidebar-toggle{display:block}
  .main-content{padding:16px}
  .page-header{flex-direction:column}
  .header-actions{width:100%}
  .search-box input{width:100%}
  .form-row{grid-template-columns:1fr}
  .profit-summary{grid-template-columns:1fr}
  .modal{max-width:100%;margin:8px}
}