/* NOVISA - CSS Styles */
:root {
    --primary: #0066cc;
    --primary-dark: #0052a3;
    --secondary: #6c757d;
    --success: #22c55e;
    --warning: #eab308;
    --danger: #ef4444;
    --dark: #1a1a2e;
    --darker: #0f0f1a;
    --light: #f4f4f5;
    --gray: #71717a;
    --border: rgba(255,255,255,0.1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--darker);
    color: #e4e4e7;
    line-height: 1.5;
}

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

.login-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 420px;
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.logo {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 3px;
}

.tagline {
    color: var(--gray);
    margin-top: 5px;
}

.login-form h2 {
    font-size: 1.25rem;
    margin-bottom: 20px;
    color: #fff;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    color: var(--gray);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: #fff;
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

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

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

.btn-secondary {
    background: rgba(255,255,255,0.1);
    color: #fff;
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.15);
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.toggle-form {
    text-align: center;
    margin-top: 20px;
    color: var(--gray);
}

.toggle-form a {
    color: var(--primary);
    text-decoration: none;
}

.error-message {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--danger);
    padding: 12px;
    border-radius: 8px;
    margin-top: 16px;
    text-align: center;
}

/* App Layout */
.app-container {
    display: flex;
    min-height: 100vh;
}

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

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid var(--border);
}

.sidebar-header .logo {
    font-size: 1.75rem;
}

.sidebar-nav {
    flex: 1;
    padding: 16px;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--gray);
    text-decoration: none;
    border-radius: 8px;
    margin-bottom: 4px;
    transition: all 0.2s;
}

.sidebar-nav a:hover {
    background: rgba(255,255,255,0.05);
    color: #fff;
}

.sidebar-nav a.active {
    background: var(--primary);
    color: #fff;
}

.sidebar-nav .badge {
    background: var(--danger);
    color: #fff;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.75rem;
    margin-left: auto;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-size: 0.875rem;
    margin-bottom: 12px;
}

.user-info i {
    font-size: 1.5rem;
    color: var(--gray);
}

.logout-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray);
    text-decoration: none;
    font-size: 0.875rem;
}

.logout-link:hover {
    color: var(--danger);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 32px;
}

.view {
    max-width: 1200px;
}

.view h2 {
    font-size: 1.75rem;
    margin-bottom: 24px;
}

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

.view-header h2 {
    margin-bottom: 0;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
}

.stat-card.highlight {
    background: rgba(0, 102, 204, 0.1);
    border-color: rgba(0, 102, 204, 0.3);
}

.stat-icon {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 12px;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: #fff;
}

.stat-label {
    color: var(--gray);
    font-size: 0.875rem;
    margin-top: 4px;
}

/* Quick Actions */
.quick-actions {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
}

.quick-actions h3 {
    margin-bottom: 16px;
}

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

/* Cards */
.client-card,
.thread-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 12px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.client-card:hover,
.thread-card:hover {
    background: rgba(255,255,255,0.05);
    border-color: var(--primary);
}

.client-info h3 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.client-info p {
    color: var(--gray);
    font-size: 0.875rem;
}

.client-status {
    display: flex;
    gap: 10px;
    align-items: center;
}

.status-badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

.status-pending {
    background: rgba(234, 179, 8, 0.15);
    color: var(--warning);
}

.status-paired {
    background: rgba(34, 197, 94, 0.15);
    color: var(--success);
}

.status-revoked {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.status-draft {
    background: rgba(108, 117, 125, 0.15);
    color: var(--secondary);
}

.status-issued,
.status-sent {
    background: rgba(0, 102, 204, 0.15);
    color: var(--primary);
}

.status-paid {
    background: rgba(34, 197, 94, 0.15);
    color: var(--success);
}

.uninvoiced-badge {
    background: rgba(0, 102, 204, 0.15);
    color: var(--primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Thread Card */
.thread-card {
    position: relative;
}

.thread-card.unread {
    border-left: 3px solid var(--primary);
}

.thread-priority {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 16px;
}

.priority-normal { background: var(--gray); }
.priority-high { background: var(--warning); }
.priority-urgent { background: var(--danger); }

.thread-info h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.thread-client {
    color: var(--gray);
    font-size: 0.875rem;
}

.thread-meta {
    text-align: right;
}

.thread-category {
    display: block;
    font-size: 0.75rem;
    color: var(--gray);
    margin-bottom: 4px;
}

.thread-time {
    font-size: 0.75rem;
    color: var(--gray);
}

/* Data Table */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(255,255,255,0.03);
    border-radius: 12px;
    overflow: hidden;
}

.data-table th {
    background: rgba(255,255,255,0.05);
    padding: 14px 16px;
    text-align: left;
    font-weight: 500;
    color: var(--gray);
    font-size: 0.875rem;
}

.data-table td {
    padding: 14px 16px;
    border-top: 1px solid var(--border);
}

.data-table tr:hover {
    background: rgba(255,255,255,0.02);
}

.data-table tr.overdue {
    background: rgba(239, 68, 68, 0.05);
}

.text-right {
    text-align: right;
}

.text-center {
    text-align: center;
}

.text-muted {
    color: var(--gray);
    font-size: 0.875rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state p {
    margin-bottom: 20px;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal {
    background: var(--dark);
    border: 1px solid var(--border);
    border-radius: 16px;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-sm {
    max-width: 400px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 {
    font-size: 1.25rem;
}

.modal-close {
    background: none;
    border: none;
    color: var(--gray);
    font-size: 1.5rem;
    cursor: pointer;
}

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

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* Pairing Code */
.pairing-code {
    font-family: monospace;
    font-size: 1.5rem;
    background: rgba(255,255,255,0.1);
    padding: 16px;
    border-radius: 8px;
    margin: 20px 0;
    word-break: break-all;
}

/* Responsive */
@media (max-width: 1200px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sidebar {
        display: none;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}