/* Zmienne CSS (Apple-inspired palette) */
:root {
    --color-background: #f5f5f7; /* Light gray background */
    --color-text: #1d1d1f; /* Dark text */
    --color-primary: #0071e3; /* Apple blue */
    --color-primary-dark: #005bb5; /* Darker blue for hover */
    --color-secondary: #6e6e73; /* Gray for secondary elements */
    --color-secondary-dark: #515154; /* Darker gray for hover */
    --color-nav-background: #ffffff; /* White navbar */
    --color-nav-text: #1d1d1f; /* Dark nav text */
    --color-link: #0071e3; /* Blue links */
    --color-link-hover: #005bb5; /* Darker blue on hover */
    --color-gradient-start: #0071e3; /* Gradient start */
    --color-gradient-end: #00c4cc; /* Gradient end */
    --shadow-light: 0 4px 12px rgba(0, 0, 0, 0.05); /* Subtle shadow */
    --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.1); /* Hover shadow */
    --border-radius: 18px; /* Apple-style rounded corners */
}

/* Global Styles */
body {
    background-color: var(--color-background);
    color: var(--color-text);
    font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Poppins', sans-serif;
    padding-top: 80px; /* Space for fixed navbar */
    margin: 0;
    line-height: 1.6;
}

/* Navbar */
.navbar {
    background: linear-gradient(to bottom, #ffffff, #f5f5f7) !important;
    box-shadow: var(--shadow-light);
    padding: 10px 20px;
    border-bottom: 1px solid #e8ecef;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 8px;
}

.apple-brand-text {
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--color-text);
    transition: color 0.3s ease;
}

.navbar-brand:hover .apple-brand-text {
    color: var(--color-link-hover);
}

.apple-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    border-radius: 50%;
    color: #fff;
    transition: transform 0.3s ease;
}

.navbar-brand:hover .apple-logo {
    transform: rotate(360deg);
}

.navbar .nav-link {
    color: var(--color-nav-text) !important;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--border-radius);
    transition: color 0.3s ease, background 0.3s ease, transform 0.2s ease;
}

.navbar .nav-link:hover {
    color: var(--color-link-hover) !important;
    background: #f5f5f7;
    transform: scale(1.05);
}

.navbar .nav-link i {
    margin-right: 8px;
}

.navbar-toggler.apple-toggler {
    border: none;
    color: var(--color-text);
    transition: transform 0.3s ease;
}

.navbar-toggler.apple-toggler:hover {
    transform: rotate(90deg);
}

/* Dropdown Menu */
.dropdown-menu {
    background: #ffffff;
    border: none;
    box-shadow: var(--shadow-light);
    border-radius: var(--border-radius);
    padding: 10px;
    transition: opacity 0.3s ease, transform 0.3s ease;
    opacity: 0;
    transform: translateY(10px);
    visibility: hidden;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
}

.dropdown-item.apple-dropdown-item {
    color: var(--color-text);
    padding: 8px 16px;
    border-radius: 12px;
    transition: background 0.3s ease;
}

.dropdown-item.apple-dropdown-item:hover {
    background: linear-gradient(to right, #f5f5f7, #e8ecef);
}

/* Links */
a {
    color: var(--color-link);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--color-link-hover);
}

/* Buttons */
.btn-primary,
.btn-secondary,
.btn-success,
.btn-warning,
.btn-danger,
.btn-info,
.btn-light {
    border-radius: var(--border-radius);
    padding: 10px 20px;
    font-weight: 600;
    transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    border: none;
    color: #ffffff;
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background: var(--color-secondary);
    border: none;
    color: #ffffff;
}

.btn-secondary:hover {
    background: var(--color-secondary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-success {
    background: linear-gradient(135deg, #28a745, #1e7e34);
    border: none;
}

.btn-success:hover {
    background: #1e7e34;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-warning {
    background: linear-gradient(135deg, #ffc107, #e0a800);
    border: none;
    color: var(--color-text);
}

.btn-warning:hover {
    background: #e0a800;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-danger {
    background: linear-gradient(135deg, #dc3545, #c82333);
    border: none;
}

.btn-danger:hover {
    background: #c82333;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-info {
    background: linear-gradient(135deg, #17a2b8, #117a8b);
    border: none;
}

.btn-info:hover {
    background: #117a8b;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-light {
    background: #f8f9fa;
    border: 1px solid #e8ecef;
    color: var(--color-text);
}

.btn-light:hover {
    background: #e8ecef;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

/* Forms */
.form-control {
    border-radius: var(--border-radius);
    border: 1px solid #e8ecef;
    background: #f5f5f7;
    transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.form-control:focus {
    background: #ffffff;
    border-color: var(--color-primary);
    box-shadow: 0 2px 8px rgba(0, 113, 227, 0.2);
}

.form-label {
    font-weight: 500;
    color: var(--color-text);
}

textarea.form-control {
    resize: vertical;
}

/* Cards */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    background: #ffffff;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.card-body {
    padding: 20px;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
}

.card-subtitle {
    font-size: 0.9rem;
    color: var(--color-secondary);
}

/* Tables */
.table {
    background: #ffffff;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-light);
}

.table thead {
    background: #f5f5f7;
    color: var(--color-text);
}

.table th,
.table td {
    vertical-align: middle;
    border-bottom: 1px solid #e8ecef;
}

.table-hover tbody tr:hover {
    background: #f5f5f7;
}

/* Alerts */
.alert {
    border-radius: var(--border-radius);
    padding: 15px;
    display: flex;
    align-items: center;
    box-shadow: var(--shadow-light);
    transition: transform 0.3s ease;
}

.alert:hover {
    transform: translateY(-2px);
}

.alert i {
    margin-right: 10px;
}

.alert-success {
    background: linear-gradient(to right, #d1e7dd, #c3e6cb);
    color: #0f5132;
    border: none;
}

.alert-danger {
    background: linear-gradient(to right, #f8d7da, #f1c1c5);
    color: #842029;
    border: none;
}

.alert-warning {
    background: linear-gradient(to right, #fff3cd, #ffecb5);
    color: #664d03;
    border: none;
}

.alert-info {
    background: linear-gradient(to right, #cff4fc, #b6effb);
    color: #055160;
    border: none;
}

/* Footer */
.footer {
    background: linear-gradient(to top, #e8ecef, #f5f5f7);
    border-top: none;
    padding: 40px 0;
}

.footer h5.apple-footer-title {
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer a.apple-footer-link {
    color: var(--color-secondary);
    transition: color 0.3s ease, transform 0.3s ease;
}

.footer a.apple-footer-link:hover {
    color: var(--color-link-hover);
    transform: translateX(5px);
}

.footer a.apple-footer-link i {
    margin-right: 8px;
}

.apple-social-icons {
    display: flex;
    gap: 15px;
}

.apple-social-link {
    color: var(--color-secondary);
    font-size: 1.5rem;
    transition: transform 0.3s ease, color 0.3s ease;
}

.apple-social-link:hover {
    transform: scale(1.2);
}

.apple-social-link.fa-facebook:hover { color: #1877f2; }
.apple-social-link.fa-twitter:hover { color: #1da1f2; }
.apple-social-link.fa-instagram:hover { color: #e1306c; }

.apple-footer-divider {
    border-color: #e8ecef;
    margin: 20px 0;
}

.apple-footer-copyright {
    font-size: 0.875rem;
    color: var(--color-secondary);
}

/* Pagination */
.pagination {
    justify-content: center;
}

.pagination .page-link {
    color: var(--color-text);
    border: 1px solid #e8ecef;
    border-radius: var(--border-radius);
    background: #ffffff;
    transition: background 0.3s ease, transform 0.2s ease;
}

.pagination .page-link:hover {
    background: #f5f5f7;
    color: var(--color-link-hover);
    transform: translateY(-2px);
}

.pagination .active .page-link {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    border-color: var(--color-primary);
    color: #ffffff;
}

/* Rating Stars */
.rating-stars .star {
    cursor: pointer;
    color: #d1d1d6;
    font-size: 1.2rem;
    transition: color 0.2s ease, transform 0.2s ease;
}

.rating-stars .star:hover,
.rating-stars .star.text-warning {
    color: #ff9500;
    transform: scale(1.1);
}

/* Toast */
.toast {
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    background: #ffffff;
}

/* Responsiveness */
@media (max-width: 767.98px) {
    .navbar-brand {
        justify-content: center;
    }

    .navbar-nav .nav-item {
        margin-left: 0;
        margin-bottom: 10px;
    }

    .footer .row > div {
        margin-bottom: 20px;
    }

    .apple-container {
        padding: 20px;
    }
}