:root {
    --primary-color: #2e7d32; 
    --primary-dark: #1b5e20;
    --secondary-color: #81c784;
    --accent-color: #ff9800; 
    --bg-light: #f4f6f8;
    --text-dark: #333;
    --text-light: #777;
    --white: #ffffff;
    --danger: #d32f2f;
    --success: #388e3c;
    --google-blue: #4285F4;
    --border-radius: 8px;
    --shadow: 0 4px 12px rgba(0,0,0,0.08);
    --sidebar-width: 250px;
    --input-bg: #e3f2fd;       
    --input-border: #90caf9;   
    --input-focus: #2196f3;    
    --input-text: #0d47a1;     
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Roboto', sans-serif; }

body { background-color: var(--bg-light); color: var(--text-dark); height: 100vh; overflow: hidden; }

/* AUTH */
#auth-screen, #lock-screen {
    display: flex; justify-content: center; align-items: center; height: 100vh;
    background: linear-gradient(135deg, var(--primary-dark), #4caf50);
    position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
}
#lock-screen { z-index: 1100; display: none; background: linear-gradient(135deg, #2c3e50, #455a64); }
.auth-container { background: var(--white); width: 100%; max-width: 420px; border-radius: var(--border-radius); box-shadow: 0 15px 35px rgba(0,0,0,0.2); overflow: hidden; position: relative; }
.auth-header { background-color: var(--primary-color); padding: 2rem 1rem; text-align: center; color: white; }
#lock-screen .auth-header { background-color: #37474f; }
.auth-header i { font-size: 3rem; margin-bottom: 0.5rem; }
.auth-body { padding: 2rem; }
.auth-view { display: none; animation: fadeIn 0.3s ease; }
.auth-view.active { display: block; }
.social-login { margin-top: 1.5rem; border-top: 1px solid #eee; padding-top: 1.5rem; }
.btn-google { background: var(--white); color: #555; border: 1px solid #ddd; width: 100%; display: flex; align-items: center; justify-content: center; gap: 10px; padding: 0.7rem; border-radius: 4px; cursor: pointer; font-weight: 500; transition: 0.2s; }
.btn-google:hover { background: #f8f9fa; border-color: #ccc; }
.btn-google img { width: 18px; height: 18px; }
.auth-links { margin-top: 1rem; text-align: center; font-size: 0.9rem; }
.auth-links a { color: var(--primary-color); text-decoration: none; cursor: pointer; font-weight: 500; }

/* LAYOUT */
#app-layout { display: flex; height: 100vh; display: none; }
aside { width: var(--sidebar-width); background-color: var(--primary-dark); color: var(--white); display: flex; flex-direction: column; transition: 0.3s; overflow-y: auto; }
.brand { padding: 1.5rem; font-size: 1.2rem; font-weight: bold; display: flex; align-items: center; gap: 10px; border-bottom: 1px solid rgba(255,255,255,0.1); }
nav { flex: 1; padding-top: 1rem; }
nav a { display: flex; align-items: center; padding: 0.7rem 1.5rem; color: rgba(255,255,255,0.8); text-decoration: none; transition: 0.2s; cursor: pointer; font-size: 0.95rem; }
nav a:hover, nav a.active { background-color: rgba(255,255,255,0.1); color: var(--white); border-left: 4px solid var(--accent-color); }
nav a i { width: 25px; margin-right: 10px; text-align: center; }
.nav-group-title { padding: 1.2rem 1.5rem 0.5rem 1.5rem; font-size: 0.75rem; text-transform: uppercase; color: rgba(255,255,255,0.4); font-weight: bold; letter-spacing: 0.5px; }
main { flex: 1; overflow-y: auto; padding: 2rem; position: relative; }
header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 2rem; }
.mobile-toggle { display: none; font-size: 1.5rem; cursor: pointer; color: var(--primary-dark); }
.license-info { font-size: 0.8rem; padding: 1rem 1.5rem; background: rgba(0,0,0,0.2); border-top: 1px solid rgba(255,255,255,0.1); text-align: center; margin-top: auto; }

/* COMPONENTS */
.dashboard-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.5rem; margin-bottom: 2rem; }
.card { background: var(--white); padding: 1.5rem; border-radius: var(--border-radius); box-shadow: var(--shadow); position: relative; overflow: hidden; }
.card h3 { font-size: 0.9rem; color: var(--text-light); text-transform: uppercase; margin-bottom: 0.5rem; }
.card .value { font-size: 1.8rem; font-weight: bold; color: var(--primary-dark); }
.card .icon { position: absolute; right: 15px; bottom: 15px; font-size: 2.5rem; opacity: 0.1; color: var(--primary-dark); }
.charts-container { display: grid; grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); gap: 1.5rem; margin-bottom: 2rem; }
.chart-box { background: var(--white); padding: 1rem; border-radius: var(--border-radius); box-shadow: var(--shadow); height: 350px; }
.btn { padding: 0.6rem 1.2rem; border: none; border-radius: 4px; cursor: pointer; font-weight: 500; transition: 0.2s; display: inline-flex; align-items: center; gap: 5px; justify-content: center; text-decoration: none; }
.btn-primary { background-color: var(--primary-color); color: var(--white); }
.btn-primary:hover { background-color: var(--primary-dark); }
.btn-danger { background-color: var(--danger); color: var(--white); }
.btn-success { background-color: var(--success); color: var(--white); }
.btn-warning { background-color: var(--accent-color); color: var(--white); }
.btn-info { background-color: #0288d1; color: var(--white); }
.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.85rem; }
.btn-outline { border: 1px solid #ccc; background: transparent; color: var(--text-dark); }
.btn-active { background-color: var(--primary-color); color: var(--white); border-color: var(--primary-color); }
.table-container { background: var(--white); padding: 1.5rem; border-radius: var(--border-radius); box-shadow: var(--shadow); overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 600px; }
th, td { padding: 1rem; text-align: left; border-bottom: 1px solid #eee; }
th { font-weight: 600; color: var(--text-light); font-size: 0.9rem; }
tr:hover { background-color: #fafafa; }
.status-badge { padding: 4px 8px; border-radius: 12px; font-size: 0.75rem; font-weight: 500; }
.badge-income { background: #e8f5e9; color: #2e7d32; }
.badge-expense { background: #ffebee; color: #c62828; }
.text-income { color: #2e7d32; font-weight: bold; }
.text-expense { color: #c62828; font-weight: bold; }
.badge-info { background: #e3f2fd; color: #1565c0; }

.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-size: 0.9rem; color: var(--text-dark); }
.form-control { width: 100%; padding: 0.7rem; border: 1px solid var(--input-border); border-radius: 4px; font-size: 1rem; background-color: var(--input-bg); color: var(--input-text); transition: all 0.2s ease; }
.form-control:focus { border-color: var(--input-focus); background-color: #ffffff; box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.15); outline: none; }
.form-control[readonly] { background-color: #cfd8dc; color: #455a64; border-color: #b0bec5; cursor: not-allowed; }
select.form-control { background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230d47a1' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e"); background-repeat: no-repeat; background-position: right 10px center; background-size: 1em; appearance: none; -webkit-appearance: none; -moz-appearance: none; }
textarea.form-control { resize: vertical; }

.modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); display: none; justify-content: center; align-items: center; z-index: 2000; }
.modal { background: var(--white); width: 90%; max-width: 600px; border-radius: var(--border-radius); padding: 2rem; max-height: 90vh; overflow-y: auto; }
.modal-header { display: flex; justify-content: space-between; margin-bottom: 1.5rem; align-items: center; }
.close-modal { font-size: 1.5rem; cursor: pointer; color: #999; }
.d-flex { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.text-right { text-align: right; }
.hidden { display: none !important; }
.form-section-title { margin: 1.5rem 0 1rem 0; padding-bottom: 0.5rem; border-bottom: 1px solid #eee; color: var(--primary-color); font-weight: 500; display: flex; align-items: center; gap: 8px; }
.grid-2-col { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.report-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.report-section h4 { margin-bottom: 1rem; color: var(--primary-dark); border-bottom: 2px solid var(--secondary-color); padding-bottom: 0.5rem; }
.report-table { width: 100%; font-size: 0.9rem; }
.report-table td { padding: 6px 0; border-bottom: 1px dashed #eee; }
.report-toolbar { background: #f1f8e9; padding: 10px; border-radius: 4px; margin-bottom: 15px; display: flex; justify-content: space-between; align-items: center; border: 1px solid #c5e1a5; }
.report-toolbar-group { display: flex; gap: 5px; }
.pdf-viewer-frame { width: 100%; height: 600px; border: 1px solid #ddd; border-radius: 4px; display: none; }
.view-section { display: none; }
.view-section.active { display: block; animation: fadeIn 0.3s; }
.pdf-fullscreen { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; z-index: 9999; border: none; border-radius: 0; }

#alert-container { position: fixed; top: 20px; right: 20px; z-index: 3000; display: flex; flex-direction: column; gap: 10px; }
.alert-toast { background: #fff; border-left: 5px solid var(--accent-color); padding: 15px; border-radius: 4px; box-shadow: 0 4px 15px rgba(0,0,0,0.2); width: 320px; display: flex; align-items: center; justify-content: space-between; animation: slideIn 0.3s ease; }
.alert-toast.critical { border-left-color: var(--danger); }
.alert-content h4 { font-size: 0.95rem; margin-bottom: 4px; color: #333; }
.alert-content p { font-size: 0.85rem; color: #666; }
.close-alert { cursor: pointer; color: #999; font-size: 1.2rem; margin-left: 10px; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@media (max-width: 768px) { aside { position: fixed; left: -250px; height: 100%; z-index: 1001; } aside.open { left: 0; } .mobile-toggle { display: block; } .charts-container { grid-template-columns: 1fr; } .grid-2-col { grid-template-columns: 1fr; } .report-grid { grid-template-columns: 1fr; } .report-toolbar { flex-direction: column; gap: 10px; align-items: stretch; } .report-toolbar-group { justify-content: center; } }