:root{--bg: #0f1117;--bg-card: #1a1d2e;--bg-input: #252840;--border: #2e3155;--text: #e2e8f0;--text-muted: #94a3b8;--accent: #6366f1;--accent-hover: #4f46e5;--success: #10b981;--danger: #ef4444;--warning: #f59e0b}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;line-height:1.5}#root{min-height:100vh}.header{background:var(--bg-card);border-bottom:1px solid var(--border);padding:1rem 2rem;display:flex;align-items:center;justify-content:space-between}.header-title{font-size:1.25rem;font-weight:700;color:var(--text);display:flex;align-items:center;gap:.5rem}.header-subtitle{font-size:.75rem;color:var(--text-muted)}.main{max-width:1400px;margin:0 auto;padding:2rem}.stats-bar{display:flex;gap:1rem;margin-bottom:2rem}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:1rem 1.5rem;flex:1}.stat-label{font-size:.75rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.stat-value{font-size:1.75rem;font-weight:700;color:var(--text);margin-top:.25rem}.stat-value.accent{color:var(--accent)}.stat-value.success{color:var(--success)}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.25rem}.section-title{font-size:1rem;font-weight:600;color:var(--text)}.btn{display:inline-flex;align-items:center;gap:.4rem;padding:.55rem 1.1rem;border-radius:8px;border:none;font-size:.875rem;font-weight:500;cursor:pointer;transition:all .15s}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-ghost{background:transparent;color:var(--text-muted);border:1px solid var(--border)}.btn-ghost:hover:not(:disabled){color:var(--text);border-color:var(--text-muted)}.btn-danger{background:var(--danger);color:#fff}.btn:disabled{opacity:.5;cursor:not-allowed}.contracts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1rem}.empty-state{text-align:center;padding:4rem 2rem;color:var(--text-muted)}.empty-state-icon{font-size:3rem;margin-bottom:1rem}.empty-state h3{font-size:1.125rem;color:var(--text);margin-bottom:.5rem}.contract-card{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:1.25rem;transition:border-color .15s,transform .15s}.contract-card:hover{border-color:var(--accent);transform:translateY(-1px)}.card-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:.75rem}.card-code{font-size:.7rem;font-family:Courier New,monospace;color:var(--accent);background:#6366f11a;padding:.2rem .5rem;border-radius:4px}.card-badge{font-size:.65rem;padding:.2rem .6rem;border-radius:20px;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.badge-cliente-final{background:#10b98126;color:var(--success)}.badge-default{background:#94a3b826;color:var(--text-muted)}.card-supplier{font-size:.875rem;font-weight:600;color:var(--text);margin-bottom:.35rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.card-obra{font-size:.8rem;color:var(--text-muted);margin-bottom:.75rem}.card-divider{border:none;border-top:1px solid var(--border);margin:.75rem 0}.card-meta{display:grid;grid-template-columns:1fr 1fr;gap:.5rem}.card-meta-item{display:flex;flex-direction:column}.card-meta-label{font-size:.65rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.card-meta-value{font-size:.875rem;font-weight:600;color:var(--text)}.card-price{font-size:1rem;font-weight:700;color:var(--success)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:flex-start;justify-content:flex-end;z-index:1000}.sidebar{background:var(--bg-card);width:460px;height:100vh;overflow-y:auto;border-left:1px solid var(--border);display:flex;flex-direction:column;animation:slideIn .2s ease-out}@keyframes slideIn{0%{transform:translate(100%)}to{transform:translate(0)}}.sidebar-header{padding:1.5rem;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;background:var(--bg-card);z-index:1}.sidebar-title{font-size:1rem;font-weight:700}.sidebar-close{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:1.25rem;padding:.25rem;transition:color .15s}.sidebar-close:hover{color:var(--text)}.sidebar-body{padding:1.5rem;flex:1;display:flex;flex-direction:column;gap:1.25rem}.form-group{display:flex;flex-direction:column;gap:.4rem}.form-label{font-size:.8rem;font-weight:500;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em}.form-label .required{color:var(--danger);margin-left:2px}.form-input,.form-select{background:var(--bg-input);border:1px solid var(--border);border-radius:8px;color:var(--text);padding:.65rem .875rem;font-size:.875rem;width:100%;transition:border-color .15s;outline:none}.form-input:focus,.form-select:focus{border-color:var(--accent);box-shadow:0 0 0 2px #6366f133}.form-select option{background:var(--bg-card);color:var(--text)}.form-input::placeholder{color:var(--text-muted)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.form-error{font-size:.75rem;color:var(--danger)}.alert{padding:.75rem 1rem;border-radius:8px;font-size:.875rem}.alert-success{background:#10b9811a;border:1px solid rgba(16,185,129,.3);color:var(--success)}.alert-error{background:#ef44441a;border:1px solid rgba(239,68,68,.3);color:var(--danger)}.sidebar-footer{padding:1.25rem 1.5rem;border-top:1px solid var(--border);display:flex;gap:.75rem;justify-content:flex-end;position:sticky;bottom:0;background:var(--bg-card)}.loading-spinner{display:inline-block;width:1rem;height:1rem;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-state{text-align:center;padding:3rem;color:var(--text-muted)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}