:root{--bg: #f8f9fa;--card: #ffffff;--text: #212529;--text-secondary: #6c757d;--border: #dee2e6;--primary: #0d6efd;--primary-hover: #0b5ed7;--danger: #dc3545;--success: #198754;--warning: #ffc107;--danger-bg: #fff5f5;--radius: 8px;--shadow: 0 1px 3px rgba(0, 0, 0, .08)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}.container{max-width:480px;margin:0 auto;padding:16px}.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;margin-bottom:12px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border:none;border-radius:var(--radius);font-size:14px;font-weight:500;cursor:pointer;transition:opacity .2s}.btn:active{opacity:.8}.btn-primary{background:var(--primary);color:#fff;width:100%}.btn-primary:hover{background:var(--primary-hover)}.btn-danger{background:var(--danger);color:#fff}.btn-success{background:var(--success);color:#fff}.btn-ghost{background:transparent;color:var(--text-secondary);padding:8px 12px}.btn-sm{padding:6px 12px;font-size:13px}.form-group{margin-bottom:14px}.form-label{display:block;font-size:13px;font-weight:500;color:var(--text-secondary);margin-bottom:4px}.form-input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius);font-size:15px;outline:none;transition:border-color .2s}.form-input:focus{border-color:var(--primary)}.form-row{display:flex;gap:12px}.form-row>*{flex:1}.error-msg{color:var(--danger);font-size:13px;margin-top:4px}.loan-group-title{font-size:13px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;padding:8px 0;border-bottom:1px solid var(--border);margin-bottom:8px}.loan-row{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid #f0f0f0;cursor:pointer}.loan-row:last-child{border-bottom:none}.loan-row.overdue{color:var(--danger)}.loan-row .borrower{font-weight:600;font-size:15px}.loan-row .meta{font-size:12px;color:var(--text-secondary);margin-top:2px}.loan-row .amount{text-align:right;font-weight:600;font-size:15px}.loan-row .interest{font-size:12px;color:var(--text-secondary);text-align:right}.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:16px}.stat-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px;text-align:center}.stat-card .value{font-size:22px;font-weight:700;color:var(--text)}.stat-card .label{font-size:12px;color:var(--text-secondary);margin-top:2px}.stat-card.danger .value{color:var(--danger)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:flex-end;justify-content:center;z-index:100}.modal-content{background:var(--card);border-radius:16px 16px 0 0;width:100%;max-width:480px;max-height:85vh;overflow-y:auto;padding:20px}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.modal-header h3{font-size:17px}.nav{display:flex;gap:0;background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:16px;overflow:hidden}.nav-item{flex:1;padding:12px;text-align:center;font-size:14px;font-weight:500;cursor:pointer;border:none;background:transparent;color:var(--text-secondary);transition:all .2s}.nav-item.active{background:var(--primary);color:#fff}.rate-options{display:flex;gap:8px;margin-bottom:8px}.rate-option{padding:8px 16px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;cursor:pointer;background:transparent;transition:all .2s}.rate-option.active{border-color:var(--primary);background:#e7f1ff;color:var(--primary)}.detail-row{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid #f0f0f0;font-size:14px}.detail-row .label{color:var(--text-secondary)}.detail-row .value{font-weight:500}.btn-group{display:flex;gap:10px;margin-top:16px}.btn-group .btn{flex:1}.badge-repaid{display:inline-block;padding:2px 8px;background:#e6f4ea;color:var(--success);font-size:12px;border-radius:12px;font-weight:500}.badge-overdue{display:inline-block;padding:2px 8px;background:var(--danger-bg);color:var(--danger);font-size:12px;border-radius:12px;font-weight:500}.login-container{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:16px}.login-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:32px 24px;width:100%;max-width:360px;text-align:center}.login-card h1{font-size:22px;margin-bottom:24px}.empty{text-align:center;padding:40px 20px;color:var(--text-secondary);font-size:14px}.fab{position:fixed;bottom:24px;right:24px;width:56px;height:56px;border-radius:50%;background:var(--primary);color:#fff;border:none;font-size:28px;cursor:pointer;box-shadow:0 4px 12px #0d6efd4d;display:flex;align-items:center;justify-content:center}@media(min-width:481px){.fab{right:calc(50% - 216px)}}.dialog-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:200}.dialog{background:var(--card);border-radius:var(--radius);padding:24px;width:300px;text-align:center}.dialog h4{margin-bottom:16px}.dialog .btn-group{margin-top:16px}