/* Základní styly */
:root {
    --primary-color: #ff8c00; /* Oranžová */
    --primary-dark: #e67e00;
    --primary-light: #ffa333;
    --secondary-color: #343a40; /* Tmavě šedá */
    --secondary-light: #495057;
    --secondary-lighter: #6c757d;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --success-color: #28a745;
    --info-color: #17a2b8;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f5f5;
    color: var(--dark-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navigační lišta */
.navbar {
    background-color: var(--secondary-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 0.8rem 1rem;
}

.navbar-brand {
    font-weight: 700;
    color: var(--primary-color) !important;
    font-size: 1.5rem;
}

.navbar-dark .navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: all 0.3s ease;
}

.navbar-dark .navbar-nav .nav-link:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

.navbar-dark .navbar-nav .nav-link.active {
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
}

/* Tlačítka */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

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

.btn-secondary:hover {
    background-color: var(--secondary-light);
    border-color: var(--secondary-light);
}

/* Karty */
.card {
    border: none;
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.card-header {
    background-color: var(--secondary-color);
    color: white;
    border-bottom: none;
}

/* Formuláře */
.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(255, 140, 0, 0.25);
}

.input-group-text {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Tabulky */
.table {
    border-radius: 10px;
    overflow: hidden;
}

.table thead th {
    background-color: var(--secondary-color);
    color: white;
    border-color: var(--secondary-light);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0, 0, 0, 0.02);
}

.table-hover tbody tr:hover {
    background-color: rgba(255, 140, 0, 0.1);
}

/* Ikony funkcí */
.feature-icon {
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    background-color: var(--primary-color);
}

/* Footer */
.footer {
    margin-top: auto;
    background-color: var(--secondary-color);
    color: rgba(255, 255, 255, 0.6);
    padding: 1rem 0;
}

/* Modální okna */
.modal-header {
    background-color: var(--secondary-color);
    color: white;
}

.modal-content {
    border-radius: 10px;
    overflow: hidden;
}

/* DataTables úpravy */
.dataTables_wrapper .dataTables_paginate .paginate_button.current {
    background: var(--primary-color) !important;
    color: white !important;
    border-color: var(--primary-color) !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
    background: var(--primary-light) !important;
    color: white !important;
    border-color: var(--primary-light) !important;
}

/* Styl pro dropdown menu pro přepínání viditelnosti sloupců */
.column-toggle .dropdown-item {
    position: relative;
    padding-right: 30px;
}

.column-toggle .dropdown-item.active {
    background-color: var(--secondary-lighter);
    color: white;
}

.column-toggle .dropdown-item.active::after {
    content: '\f00d'; /* Font Awesome ikona křížku */
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    position: absolute;
    right: 10px;
    color: var(--danger-color);
}

.column-toggle .dropdown-item:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.column-toggle .dropdown-item.active:hover {
    background-color: var(--secondary-light);
}

/* Responzivní úpravy */
@media (max-width: 768px) {
    .navbar-brand {
        font-size: 1.2rem;
    }

    h1 {
        font-size: 1.8rem;
    }

    .lead {
        font-size: 1rem;
    }
}