:root {
    --bg-color: #0f172a;
    --sidebar-bg: #1e293b;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    
    --success-color: #10b981;
    --success-bg: rgba(16, 185, 129, 0.1);
    
    --warning-color: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);
    
    --danger-color: #f43f5e;
    --danger-hover: #e11d48;
    
    --input-bg: #0f172a;
    --input-border: #334155;
    --input-focus: #3b82f6;
    
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
}

.app-container {
    display: flex;
    height: 100vh;
}

/* Sidebar Navigation */
.sidebar {
    width: 260px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.logo {
    padding: 24px;
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--primary-color);
    border-bottom: 1px solid var(--glass-border);
    flex-shrink: 0;
}

.nav-links {
    list-style: none;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
    overflow-y: auto;
}

.nav-links li {
    padding: 12px 16px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
}

.nav-links li:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.nav-links li.active {
    background-color: var(--primary-color);
    color: white;
}

/* Sidebar User Bar */
.sidebar-user-bar {
    padding: 14px 16px;
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    background: rgba(0, 0, 0, 0.15);
}

.sidebar-user-info {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.sidebar-user-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 600;
}

.sidebar-user-name {
    font-size: 0.85rem;
    color: var(--primary-color);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 170px;
}

.btn-icon {
    padding: 8px !important;
    border-radius: 50% !important;
    flex-shrink: 0;
    min-width: 36px;
    min-height: 36px;
}

/* Main Content */
.content {
    flex: 1;
    overflow-y: auto;
    padding: 32px;
    background: radial-gradient(circle at top right, #1e293b 0%, #0f172a 100%);
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease-out;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 24px;
}

.section-header h1 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.stats {
    display: flex;
    gap: 16px;
}

.stat-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 12px 24px;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 140px;
}

.stat-card.success { border-bottom: 3px solid var(--success-color); }
.stat-card.warning { border-bottom: 3px solid var(--danger-color); }

.stat-title {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    margin-top: 4px;
}

/* Glassmorphism Cards */
.card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

/* Form Styles */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.input-with-action {
    display: flex;
    gap: 12px;
}

select, input[type="text"] {
    width: 100%;
    padding: 14px 16px;
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    text-transform: uppercase;
}

select:focus, input[type="text"]:focus {
    outline: none;
    border-color: var(--input-focus);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}

input[type="password"] {
    width: 100%;
    padding: 14px 16px;
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

input[type="password"]:focus {
    outline: none;
    border-color: var(--input-focus);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}

input[type="date"] {
    padding: 8px 12px;
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: inherit;
}

.scan-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px 24px;
}

/* Buttons */
.btn {
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover { background-color: var(--primary-hover); }

.btn-secondary {
    background-color: var(--sidebar-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
}

.btn-secondary:hover { background-color: #334155; }

.btn-danger {
    background-color: var(--danger-color);
    color: white;
}

.btn-danger:hover { background-color: var(--danger-hover); }

.btn-icon {
    padding: 8px;
    border-radius: 50%;
    min-width: 36px;
    min-height: 36px;
    flex-shrink: 0;
}

.action-row {
    margin-top: 32px;
    display: flex;
    justify-content: flex-end;
}

/* Status Messages */
.status-message {
    margin-top: 24px;
    padding: 16px;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    font-size: 1.1rem;
}

.status-message.hidden { display: none; }

.status-success {
    background-color: var(--success-bg);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.status-error {
    background-color: rgba(244, 63, 94, 0.1);
    color: var(--danger-color);
    border: 1px solid var(--danger-color);
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-overlay.hidden { display: none; }

.modal {
    background: var(--sidebar-bg);
    padding: 32px;
    border-radius: 16px;
    width: 90%;
    max-width: 500px;
    border: 1px solid var(--glass-border);
    box-shadow: 0 24px 48px rgba(0,0,0,0.5);
    text-align: center;
}

.warning-modal {
    border: 2px solid var(--danger-color);
}

.warning-modal h2 {
    color: var(--danger-color);
    font-size: 1.8rem;
    margin: 16px 0;
}

.warning-modal p {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 1.1rem;
}

.modal-icon {
    display: flex;
    justify-content: center;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 24px;
}

/* Login Overlay */
#login-overlay {
    z-index: 9999;
    background: rgba(7, 13, 30, 0.92);
    backdrop-filter: blur(16px);
}

#login-overlay .modal {
    border: 1px solid rgba(59, 130, 246, 0.3);
    box-shadow: 0 0 60px rgba(59, 130, 246, 0.15), 0 24px 48px rgba(0, 0, 0, 0.6);
    animation: fadeIn 0.4s ease-out;
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed var(--glass-border);
    border-radius: 12px;
    padding: 48px;
    text-align: center;
    margin-top: 24px;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-secondary);
}

.upload-zone:hover {
    border-color: var(--primary-color);
    background-color: rgba(59, 130, 246, 0.05);
    color: var(--text-primary);
}

.upload-zone svg { margin-bottom: 16px; }

.upload-status {
    margin-top: 16px;
    padding: 12px;
    background: var(--sidebar-bg);
    border-radius: 8px;
    font-size: 0.95rem;
}

/* Reports Grid */
.reports-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.report-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.report-icon {
    padding: 12px;
    border-radius: 12px;
    margin-bottom: 16px;
}

.success-icon { background: var(--success-bg); color: var(--success-color); }
.warning-icon { background: var(--warning-bg); color: var(--warning-color); }

.report-card h3 { margin-bottom: 8px; }
.report-card p { color: var(--text-secondary); margin-bottom: 24px; flex: 1; }

.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.span-2 { grid-column: span 2; }

/* Recent List */
.recent-list-container {
    margin-top: 32px;
}

.recent-list-container h3 {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 8px;
}

.recent-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.recent-item {
    background: var(--glass-bg);
    padding: 12px 16px;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--glass-border);
    font-size: 0.9rem;
}

.recent-item.segregado {
    border-left: 4px solid var(--danger-color);
}
.recent-item.pre-alerta {
    border-left: 4px solid var(--success-color);
}

.recent-item-info {
    display: flex;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
}

.badge {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    white-space: nowrap;
}

.badge-success { background: var(--success-bg); color: var(--success-color); }
.badge-danger { background: rgba(244, 63, 94, 0.1); color: var(--danger-color); }