/* Modern Layout Styles */
.modern-layout {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Top Navbar */
.top-navbar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    display: flex;
    align-items: center;
    padding: 0 2rem;
    height: 60px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    margin-right: 3rem;
}

.navbar-brand a {
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-brand i {
    font-size: 1.8rem;
}

.navbar-menu {
    display: flex;
    gap: 0.5rem;
    flex: 1;
}

.nav-item {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.15);
    color: white;
}

.nav-item.active {
    background: rgba(255, 255, 255, 0.25);
    color: white;
}

.navbar-user {
    margin-left: auto;
}

.btn-user {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    transition: all 0.2s;
}

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

.navbar-actions {
    display: flex;
    gap: 1rem;
}

.btn-login, .btn-register {
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s;
}

.btn-login {
    color: white;
    border: 2px solid white;
}

.btn-login:hover {
    background: white;
    color: #667eea;
}

.btn-register {
    background: white;
    color: #667eea;
}

.btn-register:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

/* Main Content */
.main-content {
    flex: 1;
    background: #f8f9fa;
}

.content-area {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* Dropdown Menu */
.dropdown {
    position: relative;
}

.dropdown-menu {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: 0.5rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    min-width: 200px;
    overflow: hidden;
}

.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu {
    display: block;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: #333;
    text-decoration: none;
    transition: background 0.2s;
}

.dropdown-item:hover {
    background: #f8f9fa;
}

.dropdown-divider {
    margin: 0;
    border: none;
    border-top: 1px solid #e9ecef;
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    animation: fadeIn 0.2s;
}

.modal-content {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    animation: slideUp 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

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

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #333;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #999;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s;
}

.modal-close:hover {
    background: #f8f9fa;
    color: #333;
}

/* Cards */
.card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    border: none;
    margin-bottom: 1.5rem;
}

.card-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 12px 12px 0 0 !important;
    padding: 1.25rem;
    border: none;
}

.card-header h3, .card-header h4, .card-header h5 {
    margin: 0;
    color: white;
}

.card-body {
    padding: 1.5rem;
}

/* Buttons */
.btn {
    border-radius: 8px;
    font-weight: 600;
    padding: 0.5rem 1.25rem;
    transition: all 0.2s;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

/* Forms */
.form-control, .form-select {
    border-radius: 8px;
    border: 1px solid #ddd;
    padding: 0.625rem 0.875rem;
}

.form-control:focus, .form-select:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

/* Tables */
.table {
    background: white;
}

.table thead th {
    background: #f8f9fa;
    border-bottom: 2px solid #667eea;
    color: #333;
    font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar-menu {
        display: none;
    }
    
    .content-area {
        padding: 1rem;
    }
    
    .top-navbar {
        padding: 0 1rem;
    }
}