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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #0a0e27;
    color: #e5e5e5;
    line-height: 1.6;
}

/* Login Screen */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 100%);
}

.login-box {
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 2rem;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1 {
    color: #00d9ff;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: #9ca3af;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #e5e5e5;
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #e5e5e5;
    font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #00d9ff;
}

.btn-primary {
    width: 100%;
    padding: 0.75rem;
    background: linear-gradient(135deg, #00d9ff, #b026ff);
    border: none;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 217, 255, 0.4);
}

.btn-secondary {
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: #e5e5e5;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

.btn-danger {
    padding: 0.5rem 1rem;
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(239, 68, 68, 0.4);
    border-radius: 8px;
    color: #ef4444;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.3);
}

.btn-logout {
    width: 100%;
    padding: 0.75rem;
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(239, 68, 68, 0.4);
    border-radius: 8px;
    color: #ef4444;
    font-weight: 600;
    cursor: pointer;
}

.error-message {
    color: #ef4444;
    margin-top: 1rem;
    font-size: 0.875rem;
}

.success-message {
    color: #10b981;
    margin-top: 1rem;
    font-size: 0.875rem;
}

/* Admin Panel Layout */
.admin-panel {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    background: rgba(26, 31, 58, 0.8);
    backdrop-filter: blur(12px);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h2 {
    color: #00d9ff;
    font-size: 1.25rem;
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    color: #9ca3af;
    text-decoration: none;
    transition: all 0.2s;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #e5e5e5;
}

.nav-item.active {
    background: rgba(0, 217, 255, 0.1);
    color: #00d9ff;
    border-left: 3px solid #00d9ff;
}

.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.main-content {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.content-header h1 {
    color: #e5e5e5;
    font-size: 2rem;
}

.user-info {
    color: #9ca3af;
}

.content-section {
    display: none;
}

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

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: rgba(26, 31, 58, 0.6);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1.5rem;
}

.stat-card h3 {
    color: #9ca3af;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-number {
    color: #00d9ff;
    font-size: 2rem;
    font-weight: 700;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
}

.dashboard-card {
    background: rgba(26, 31, 58, 0.6);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1.5rem;
}

.dashboard-card h3 {
    color: #e5e5e5;
    margin-bottom: 1rem;
}

.recent-item {
    padding: 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Tables */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.section-header h2 {
    color: #e5e5e5;
}

.filters {
    display: flex;
    gap: 1rem;
}

.filters select {
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #e5e5e5;
}

.table-container {
    background: rgba(26, 31, 58, 0.6);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    overflow: hidden;
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead {
    background: rgba(0, 217, 255, 0.1);
}

th {
    padding: 1rem;
    text-align: left;
    color: #00d9ff;
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

td {
    padding: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: #e5e5e5;
}

td select,
td button {
    margin-right: 0.5rem;
}

.status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: capitalize;
}

.status-badge.status-pending,
.status-badge.status-new {
    background: rgba(251, 191, 36, 0.2);
    color: #fbbf24;
}

.status-badge.status-contacte,
.status-badge.status-qualified {
    background: rgba(59, 130, 246, 0.2);
    color: #3b82f6;
}

.status-badge.status-completed,
.status-badge.status-converted {
    background: rgba(16, 185, 129, 0.2);
    color: #10b981;
}

.status-badge.status-cancelled,
.status-badge.status-lost {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

.status-badge.status-success {
    background: rgba(16, 185, 129, 0.2);
    color: #10b981;
}

.status-badge.status-failed {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

/* Cards Grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.card {
    background: rgba(26, 31, 58, 0.6);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1.5rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.card-header h3 {
    color: #e5e5e5;
}

.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    background: rgba(0, 217, 255, 0.2);
    color: #00d9ff;
}

.badge-success {
    background: rgba(16, 185, 129, 0.2);
    color: #10b981;
}

.card-body {
    color: #9ca3af;
    margin-bottom: 1rem;
}

.card-body p {
    margin-bottom: 0.5rem;
}

.card-actions {
    display: flex;
    gap: 0.5rem;
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal {
    background: rgba(26, 31, 58, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 2rem;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    display: none;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.modal-header h2 {
    color: #e5e5e5;
}

.modal-close {
    background: none;
    border: none;
    color: #9ca3af;
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
}

.modal-close:hover {
    color: #e5e5e5;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 1.5rem;
}

.settings-card {
    background: rgba(26, 31, 58, 0.6);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 2rem;
    max-width: 600px;
}

.settings-card h3 {
    color: #e5e5e5;
    margin-bottom: 1.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .admin-panel {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
    
    .table-container {
        overflow-x: auto;
    }
}