:root{--font-base: 18px;--tap: 52px;--brand: #1f6feb;--bg: #f8fafc;--text: #1e293b;--text-muted: #94a3b8;--border: #e2e8f0;--surface: #ffffff}*{box-sizing:border-box}html{font-size:var(--font-base)}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);font-size:1rem;line-height:1.5}button,.btn{min-height:var(--tap);font-size:1.1rem;padding:0 1.25rem;border-radius:12px;border:none;background:var(--brand);color:#fff;cursor:pointer}input,select{min-height:var(--tap);font-size:1.1rem;padding:0 .9rem;border-radius:10px}@media (min-width: 768px){:root{--font-base: 17px}}.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}.unit-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.75rem}@media (min-width: 768px){.stats-grid{grid-template-columns:repeat(4,1fr)}.unit-grid{grid-template-columns:repeat(3,1fr)}}.card{background:var(--surface);border-radius:16px;padding:1.25rem;box-shadow:0 1px 4px #00000014}.card-stat{text-align:center}.card-stat .value{font-size:2rem;font-weight:700;color:var(--brand)}.card-stat .label{font-size:.85rem;color:var(--text-muted);margin-top:.25rem}.badge{display:inline-block;padding:.2rem .6rem;border-radius:99px;font-size:.8rem;font-weight:600}.badge-vacant{background:#f1f5f9;color:#64748b}.badge-occupied{background:#dcfce7;color:#16a34a}.badge-maintenance{background:#fef9c3;color:#ca8a04}.badge-overdue{background:#fee2e2;color:#dc2626}.badge-paid{background:#dcfce7;color:#16a34a}.badge-pending{background:#f1f5f9;color:#64748b}.badge-listed-sale{background:#dbeafe;color:#2563eb}.badge-listed-rent{background:#f3e8ff;color:#7c3aed}.badge-in-progress{background:#fef3c7;color:#d97706}.amount-income{color:#16a34a;font-weight:600}.amount-expense{color:#dc2626;font-weight:600}.bottom-nav{position:fixed;bottom:0;left:0;right:0;background:var(--surface);border-top:1px solid var(--border);display:flex;justify-content:space-around;padding:.5rem 0 env(safe-area-inset-bottom);z-index:100}.bottom-nav a{display:flex;flex-direction:column;align-items:center;gap:2px;font-size:.7rem;color:var(--text-muted);text-decoration:none;padding:.5rem;min-width:3.5rem}.bottom-nav a.active{color:var(--brand)}@media (min-width: 768px){.bottom-nav,.mobile-topbar{display:none}.app-layout{display:flex;min-height:100vh}.sidebar{width:220px;background:var(--surface);border-right:1px solid var(--border);padding:1.5rem 1rem;flex-shrink:0;display:flex;flex-direction:column}.sidebar a{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;border-radius:12px;font-size:1rem;color:var(--text);text-decoration:none}.sidebar a.active{background:var(--brand);color:#fff}.main-content{flex:1;overflow-y:auto;padding:1.5rem}}.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:200}@media (min-width: 768px){.modal-overlay{align-items:center}}.modal{background:var(--surface);border-radius:20px 20px 0 0;padding:1.5rem;width:100%;max-width:480px;max-height:90vh;overflow-y:auto}@media (min-width: 768px){.modal{border-radius:20px}}.form-group{margin-bottom:1rem}.form-group label{display:block;font-size:.9rem;margin-bottom:.4rem;color:var(--text-muted)}.form-group input,.form-group select,.form-group textarea{width:100%;padding:.75rem 1rem;border:1.5px solid var(--border);border-radius:12px;font-size:1rem;background:var(--bg);color:var(--text)}.form-group input:focus,.form-group select:focus{border-color:var(--brand);outline:none}.loading{display:flex;align-items:center;justify-content:center;min-height:100vh;font-size:1.2rem;color:var(--text-muted)}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.5rem}.page-header h1{font-size:1.4rem;font-weight:700;margin:0}.lang-btn{min-height:44px;padding:.5rem .75rem;background:transparent;border:1px solid var(--border);border-radius:8px;color:var(--brand);cursor:pointer}.lang-btn.active{background:var(--brand);color:#fff;border-color:var(--brand)}