*{margin:0;padding:0;box-sizing:border-box;}
body{font-family:'Inter',sans-serif;background:#0f0f1a;color:#fff;display:flex;min-height:100vh;}

/* ── Sidebar ── */
.sidebar{width:240px;min-height:100vh;background:#1a1a2e;border-right:1px solid rgba(255,255,255,0.07);display:flex;flex-direction:column;position:fixed;top:0;left:0;z-index:100;}
.sidebar-logo{padding:22px 20px;border-bottom:1px solid rgba(255,255,255,0.07);display:flex;align-items:center;gap:12px;}
.sidebar-logo .icon{width:38px;height:38px;background:linear-gradient(135deg,#6c63ff,#a855f7);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:16px;}
.sidebar-logo span{font-size:14px;font-weight:700;color:#fff;}
.sidebar-logo small{display:block;font-size:10px;color:#a855f7;letter-spacing:1px;}
nav{flex:1;padding:16px 12px;overflow-y:auto;}
nav a{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:10px;color:#94a3b8;text-decoration:none;font-size:13.5px;font-weight:500;margin-bottom:4px;transition:all 0.2s;}
nav a:hover,nav a.active{background:rgba(108,99,255,0.15);color:#a855f7;}
nav a i{width:18px;text-align:center;font-size:14px;}
.sidebar-footer{padding:16px;border-top:1px solid rgba(255,255,255,0.07);font-size:12px;color:#475569;}

/* ── Main ── */
.main{margin-left:240px;flex:1;display:flex;flex-direction:column;}
.topbar{padding:16px 28px;background:#1a1a2e;border-bottom:1px solid rgba(255,255,255,0.07);display:flex;align-items:center;justify-content:space-between;}
.topbar h2{font-size:18px;font-weight:700;}
.topbar-actions{display:flex;align-items:center;gap:12px;}
.topbar-actions input{background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.1);border-radius:8px;padding:8px 14px;color:#fff;font-size:13px;width:200px;outline:none;}
.icon-btn{width:36px;height:36px;background:rgba(255,255,255,0.06);border:none;border-radius:8px;color:#94a3b8;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:14px;}
.avatar{width:36px;height:36px;background:linear-gradient(135deg,#6c63ff,#a855f7);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;cursor:pointer;}

.page{display:none;padding:28px;}
.page.active{display:block;}

/* ── KPI Cards ── */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:28px;}
.kpi{background:#1a1a2e;border:1px solid rgba(255,255,255,0.07);border-radius:14px;padding:22px 20px;}
.kpi label{font-size:12px;color:#64748b;text-transform:uppercase;letter-spacing:1px;display:block;margin-bottom:8px;}
.kpi .val{font-size:26px;font-weight:800;}
.kpi.green .val{color:#10b981;}
.kpi.orange .val{color:#f97316;}
.kpi.blue .val{color:#38bdf8;}
.kpi.red .val{color:#f43f5e;}

/* ── Charts row ── */
.charts-row{display:grid;grid-template-columns:2fr 1fr;gap:18px;margin-bottom:28px;}
.card{background:#1a1a2e;border:1px solid rgba(255,255,255,0.07);border-radius:14px;padding:22px;}
.card h4{font-size:14px;font-weight:600;margin-bottom:18px;color:#e2e8f0;}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.card-header h4{margin:0;}

/* ── Tables ── */
.table-card{background:#1a1a2e;border:1px solid rgba(255,255,255,0.07);border-radius:14px;padding:22px;margin-bottom:22px;}
table{width:100%;border-collapse:collapse;}
th{font-size:12px;color:#64748b;text-transform:uppercase;letter-spacing:0.8px;padding:10px 14px;text-align:left;border-bottom:1px solid rgba(255,255,255,0.06);}
td{font-size:13.5px;padding:12px 14px;border-bottom:1px solid rgba(255,255,255,0.04);color:#cbd5e1;}
tr:last-child td{border:none;}
tr:hover td{background:rgba(255,255,255,0.02);}

.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:20px;font-size:11px;font-weight:600;}
.badge.paid{background:rgba(16,185,129,0.15);color:#10b981;}
.badge.pending{background:rgba(249,115,22,0.15);color:#f97316;}
.badge.overdue{background:rgba(244,63,94,0.15);color:#f43f5e;}
.badge.draft{background:rgba(100,116,139,0.15);color:#94a3b8;}
.badge.new{background:rgba(56,189,248,0.15);color:#38bdf8;}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:10px;font-size:13.5px;font-weight:600;border:none;cursor:pointer;transition:all 0.2s;text-decoration:none;}
.btn-primary{background:linear-gradient(135deg,#6c63ff,#a855f7);color:#fff;}
.btn-primary:hover{opacity:0.9;}
.btn-outline{background:transparent;border:1px solid rgba(255,255,255,0.12);color:#94a3b8;}
.btn-outline:hover{background:rgba(255,255,255,0.06);}
.btn-sm{padding:7px 14px;font-size:12px;}
.btn-danger{background:rgba(244,63,94,0.15);color:#f43f5e;border:1px solid rgba(244,63,94,0.2);}

/* ── Form ── */
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.form-group{display:flex;flex-direction:column;gap:6px;}
.form-group label{font-size:12px;color:#64748b;font-weight:500;}
.form-group input,.form-group select,.form-group textarea{background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.1);border-radius:8px;padding:10px 14px;color:#fff;font-size:13.5px;outline:none;font-family:'Inter',sans-serif;transition:border-color 0.2s;}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:#a855f7;}
.form-group select option{background:#1a1a2e;}
.full{grid-column:1/-1;}

/* ── Modal ── */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.7);z-index:200;align-items:center;justify-content:center;}
.modal-overlay.open{display:flex;}
.modal{background:#1a1a2e;border:1px solid rgba(255,255,255,0.1);border-radius:18px;padding:30px;width:680px;max-width:95vw;max-height:90vh;overflow-y:auto;}
.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.modal-header h3{font-size:18px;font-weight:700;}
.modal-close{background:none;border:none;color:#64748b;font-size:20px;cursor:pointer;}
.modal-footer{display:flex;gap:12px;justify-content:flex-end;margin-top:24px;padding-top:20px;border-top:1px solid rgba(255,255,255,0.07);}

/* ── Invoice Preview ── */
.invoice-preview{background:#fff;color:#1e293b;border-radius:12px;padding:32px;margin-top:16px;}
.inv-header{display:flex;justify-content:space-between;margin-bottom:24px;}
.inv-header h2{color:#6c63ff;font-size:24px;}
.inv-to{margin-bottom:20px;}
.inv-to p{font-size:13px;color:#64748b;margin-bottom:2px;}
.inv-items th{background:#f8fafc;color:#64748b;font-size:12px;}
.inv-items td{color:#1e293b;font-size:13px;}
.inv-total{text-align:right;margin-top:16px;}
.inv-total table{margin-left:auto;min-width:220px;}
.inv-total td{font-size:13px;color:#475569;padding:4px 8px;}
.inv-total .grand td{font-weight:700;color:#1e293b;font-size:15px;border-top:2px solid #e2e8f0;padding-top:10px;}
.paid-stamp{display:inline-block;border:3px solid #10b981;color:#10b981;padding:4px 16px;border-radius:6px;font-weight:800;font-size:18px;transform:rotate(-10deg);margin-top:16px;}

/* ── Stats small ── */
.stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:28px;}
.stat-item{background:#1a1a2e;border:1px solid rgba(255,255,255,0.07);border-radius:12px;padding:18px 20px;display:flex;align-items:center;gap:14px;}
.stat-icon{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:18px;}
.stat-info label{font-size:11px;color:#64748b;text-transform:uppercase;letter-spacing:0.8px;}
.stat-info span{display:block;font-size:20px;font-weight:700;}

/* ── GST summary ── */
.gst-row{display:flex;gap:12px;margin-bottom:8px;}
.gst-pill{flex:1;background:rgba(255,255,255,0.04);border-radius:8px;padding:12px;text-align:center;}
.gst-pill .p{font-size:22px;font-weight:800;color:#a855f7;}
.gst-pill label{font-size:11px;color:#64748b;display:block;margin-top:4px;}

/* ── canvas ── */
canvas{width:100%!important;}

/* ── back link ── */
.back-home{display:inline-flex;align-items:center;gap:6px;color:#a855f7;text-decoration:none;font-size:13px;margin-bottom:0;}
.back-home:hover{text-decoration:underline;}