:root{--hhi-primary: #1c2420;--hhi-primary-light: #2a3630;--hhi-accent: #2e9e45;--hhi-accent-cyan: #1c7a38;--hhi-accent-coral: #c99a2e;--hhi-success: #2e9e45;--hhi-danger: #c0392b;--hhi-warning-text: #8f6d21;--hhi-grad-primary: linear-gradient(135deg, #1c2420 0%, #2e9e45 100%);--hhi-grad-accent: linear-gradient(135deg, #2e9e45 0%, #1c7a38 100%);--hhi-grad-warm: linear-gradient(135deg, #c99a2e 0%, #e4c069 100%);--hhi-bg-body: #f7f8f5;--hhi-bg-surface: #ffffff;--hhi-bg-subtle: #f1f5f9;--hhi-border-color: rgba(226, 232, 240, .8);--hhi-border-focus: rgba(46, 158, 69, .4);--hhi-text-main: #1c2420;--hhi-text-muted: #64748b;--hhi-text-light: #94a3b8;--hhi-text-inverse: #ffffff;--hhi-shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, .07), 0 2px 4px -2px rgba(0, 0, 0, .05);--hhi-shadow-md: 0 10px 15px -3px rgba(0, 0, 0, .08), 0 4px 6px -4px rgba(0, 0, 0, .04);--hhi-shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, .09), 0 8px 10px -6px rgba(0, 0, 0, .04);--hhi-radius-sm: 8px;--hhi-radius-md: 12px;--hhi-radius-lg: 18px;--hhi-radius-full: 9999px;--hhi-transition-fast: all .2s cubic-bezier(.4, 0, .2, 1);--hhi-transition-normal: all .3s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box}body{margin:0;font-family:Plus Jakarta Sans,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--hhi-bg-body);color:var(--hhi-text-main)}h1,h2,h3,h4,.brand-font{font-family:Outfit,Plus Jakarta Sans,sans-serif}a{color:inherit}button,input,select,textarea{font-family:inherit;font-size:inherit}.app-shell{display:flex;min-height:100vh}.sidebar{width:220px;flex-shrink:0;background:var(--hhi-grad-primary);color:var(--hhi-text-inverse);display:flex;flex-direction:column;padding:24px 16px}.sidebar .brand{font-family:Outfit,sans-serif;font-weight:800;font-size:18px;margin-bottom:32px;padding:0 8px}.sidebar nav{display:flex;flex-direction:column;gap:4px;flex:1;overflow-y:auto}.sidebar nav a{display:block;padding:10px 12px;border-radius:var(--hhi-radius-sm);text-decoration:none;color:#ffffffbf;font-weight:500;font-size:14px;transition:var(--hhi-transition-fast)}.sidebar nav a.top-level{margin-bottom:4px}.nav-group{margin-bottom:2px}.nav-group-header{display:flex;align-items:center;justify-content:space-between;width:100%;background:transparent;border:none;color:#ffffff8c;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;padding:10px 12px 4px;cursor:pointer}.nav-group-header:hover{color:#ffffffd9}.nav-group-chevron{display:inline-block;transition:transform .15s ease;font-size:10px}.nav-group-chevron.collapsed{transform:rotate(-90deg)}.nav-group-items{display:flex;flex-direction:column;gap:4px}.sidebar nav a:hover{background:#ffffff14;color:#fff}.sidebar nav a.active{background:var(--hhi-accent);color:#fff}.sidebar .user-block{padding:12px 8px 0;border-top:1px solid rgba(255,255,255,.12);margin-top:12px}.sidebar .user-block .name{font-weight:600;font-size:13px}.sidebar .user-block .role{font-size:11px;color:#fff9;text-transform:uppercase;letter-spacing:.04em}.sidebar .logout-btn{margin-top:10px;background:transparent;border:1px solid rgba(255,255,255,.25);color:#fff;padding:6px 10px;border-radius:var(--hhi-radius-sm);font-size:12px;cursor:pointer;width:100%}.main-content{flex:1;padding:32px 40px;max-width:1200px}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;gap:16px;flex-wrap:wrap}.page-header h1{margin:0;font-size:24px}.card{background:var(--hhi-bg-surface);border:1px solid var(--hhi-border-color);border-radius:var(--hhi-radius-lg);box-shadow:var(--hhi-shadow-sm);padding:24px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:var(--hhi-bg-surface);border:1px solid var(--hhi-border-color);border-radius:var(--hhi-radius-lg);padding:20px;box-shadow:var(--hhi-shadow-sm)}.stat-card .label{font-size:12px;color:var(--hhi-text-muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:6px}.stat-card .value{font-family:Outfit,sans-serif;font-size:26px;font-weight:700}.stat-card.accent .value{color:var(--hhi-accent)}.stat-card.warn .value{color:var(--hhi-warning-text)}table.data-table{width:100%;border-collapse:collapse}table.data-table th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--hhi-text-muted);padding:10px 12px;border-bottom:2px solid var(--hhi-border-color)}table.data-table td{padding:12px;border-bottom:1px solid var(--hhi-border-color);font-size:14px}table.data-table tbody tr:hover{background:var(--hhi-bg-subtle)}table.data-table a.row-link{text-decoration:none;color:var(--hhi-primary);font-weight:600}.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:var(--hhi-radius-sm);border:none;font-weight:600;font-size:14px;cursor:pointer;transition:var(--hhi-transition-fast);text-decoration:none}.btn-primary{background:var(--hhi-grad-accent);color:#fff}.btn-primary:hover{box-shadow:var(--hhi-shadow-md)}.btn-secondary{background:var(--hhi-bg-subtle);color:var(--hhi-text-main);border:1px solid var(--hhi-border-color)}.btn-danger{background:#fdecea;color:var(--hhi-danger)}.btn:disabled{opacity:.5;cursor:not-allowed}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.form-field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}.form-field label{font-size:13px;font-weight:600;color:var(--hhi-text-muted)}.form-field input,.form-field select,.form-field textarea{padding:9px 12px;border:1px solid var(--hhi-border-color);border-radius:var(--hhi-radius-sm);font-size:14px;background:#fff}.form-field input:focus,.form-field select:focus,.form-field textarea:focus{outline:none;border-color:var(--hhi-accent);box-shadow:0 0 0 3px var(--hhi-border-focus)}.badge{display:inline-block;padding:3px 10px;border-radius:var(--hhi-radius-full);font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.03em}.badge-draft{background:#eef2f7;color:#475569}.badge-sent{background:#e6f0ff;color:#1d4ed8}.badge-partial{background:#fef3e2;color:#b45309}.badge-paid{background:#e7f6ec;color:#1c7a38}.badge-overdue{background:#fdecea;color:#c0392b}.badge-void{background:#f1f5f9;color:#94a3b8}.error-text{color:var(--hhi-danger);font-size:13px;margin:8px 0}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--hhi-grad-dark, var(--hhi-primary))}.login-card{width:340px;background:#fff;border-radius:var(--hhi-radius-lg);padding:32px;box-shadow:var(--hhi-shadow-lg)}.login-card h1{font-size:20px;margin:0 0 4px}.login-card p.sub{color:var(--hhi-text-muted);font-size:13px;margin:0 0 20px}.line-items-table th,.line-items-table td{padding:8px}.line-items-table input{width:100%}.text-muted{color:var(--hhi-text-muted)}.section-title{font-size:13px;text-transform:uppercase;letter-spacing:.04em;color:var(--hhi-text-muted);margin:24px 0 12px}.actions-row{display:flex;gap:8px;flex-wrap:wrap}