/* CenterBox Invoice System Styles */
:root {
    --primary: #FF6B35;
    --secondary: #004E89;
    --dark: #1A1A2E;
    --light: #F5F5F5;
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    --info: #17a2b8;
    --white: #ffffff;
    --gray: #6c757d;
    --border: #dee2e6;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--light);
    color: var(--dark);
    line-height: 1.6;
}

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

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-box {
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.login-box .logo {
    text-align: center;
    margin-bottom: 20px;
}

.login-box .logo img {
    max-width: 150px;
    height: auto;
}

.login-box h1 {
    text-align: center;
    color: var(--dark);
    margin-bottom: 10px;
}

.login-box .subtitle {
    text-align: center;
    color: var(--gray);
    margin-bottom: 30px;
}

.login-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 0.85rem;
    color: var(--gray);
}

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

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--dark);
    color: var(--white);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-logo {
    max-width: 120px;
    height: auto;
    margin-bottom: 10px;
}

.sidebar-header h3 {
    font-size: 1rem;
    font-weight: 500;
}

.sidebar-nav {
    flex: 1;
    padding: 20px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.3s;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
}

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

.nav-item svg {
    margin-right: 12px;
    stroke-width: 2;
}

.sidebar-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 10px 0;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 260px;
    background: var(--light);
}

.top-bar {
    background: var(--white);
    padding: 20px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.top-bar h1 {
    font-size: 1.5rem;
    color: var(--dark);
}

.user-info {
    color: var(--gray);
}

.content-wrapper {
    padding: 30px;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    gap: 30px;
}

.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.stat-card {
    background: var(--white);
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    gap: 20px;
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.stat-icon.blue {
    background: var(--secondary);
}

.stat-icon.green {
    background: var(--success);
}

.stat-icon.orange {
    background: var(--primary);
}

.stat-icon.red {
    background: var(--danger);
}

.stat-content h3 {
    font-size: 1.8rem;
    margin-bottom: 5px;
    color: var(--dark);
}

.stat-content p {
    color: var(--gray);
    font-size: 0.9rem;
}

/* Card */
.card {
    background: var(--white);
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.card-header {
    padding: 20px 25px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h2 {
    font-size: 1.2rem;
    color: var(--dark);
}

/* Table */
.table-responsive {
    overflow-x: auto;
}

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

.table thead {
    background: var(--light);
}

.table th,
.table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.table th {
    font-weight: 600;
    color: var(--dark);
    font-size: 0.9rem;
}

.table tbody tr:hover {
    background: var(--light);
}

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

/* Badges */
.badge {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.badge-draft {
    background: var(--gray);
    color: var(--white);
}

.badge-sent {
    background: var(--info);
    color: var(--white);
}

.badge-paid {
    background: var(--success);
    color: var(--white);
}

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

.badge-cancelled {
    background: var(--dark);
    color: var(--white);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    font-size: 0.95rem;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s;
    font-weight: 500;
}

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

.btn-primary:hover {
    background: #e55a2b;
}

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

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

.btn-info:hover {
    background: #138496;
}

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

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

.btn-sm {
    padding: 6px 15px;
    font-size: 0.85rem;
}

.btn-block {
    width: 100%;
    display: block;
}

.btn-icon {
    padding: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 5px;
    color: var(--gray);
    transition: all 0.3s;
}

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

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 5px;
    font-size: 0.95rem;
    transition: border-color 0.3s;
}

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

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* Alerts */
.alert {
    padding: 15px 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 70px;
    }

    .sidebar-header h3,
    .nav-item span {
        display: none;
    }

    .sidebar-logo {
        max-width: 40px;
    }

    .main-content {
        margin-left: 70px;
    }

    .stats-row {
        grid-template-columns: 1fr;
    }

    .top-bar {
        padding: 15px 20px;
    }

    .content-wrapper {
        padding: 20px;
    }
}