/* css/style.css - Finální verze */

/* --- Základní nastavení a proměnné --- */
:root {
    --primary-color: #3498db;
    --primary-hover-color: #2980b9;
    --secondary-color: #f1f5f9;
    --secondary-hover-color: #e2e8f0;
    --success-color: #2ecc71;
    --success-hover-color: #27ae60;
    --danger-color: #e74c3c;
    --danger-hover-color: #c0392b;
    --info-color: #5bc0de;
    --info-hover-color: #31b0d5;
    --warning-color: #f0ad4e;
    --warning-hover-color: #ec971f;
    --text-color: #34495e;
    --background-color: #f8f9fa;
    --white-color: #ffffff;
    --border-color: #e1e5e9;
    --shadow-color: rgba(0, 0, 0, 0.05);
    --font-family: 'Inter', sans-serif;
    --header-height: 60px;
}

/* --- Globální styly --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

html {
    height: 100%;
}

body {
    margin: 0;
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color);
    font-size: 16px;
    line-height: 1.6;
}

.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

h2, h3, h4 { font-weight: 600; color: var(--text-color); margin-top: 0; }
h2 { font-size: 1.8rem; }
h3 { font-size: 1.4rem; }
h4 { font-size: 1.1rem; }

a { color: var(--primary-color); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--primary-hover-color); }

/* --- Hlavní layout aplikace --- */
.app-header {
    height: var(--header-height);
    background-color: var(--white-color);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 25px;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    z-index: 100;
}
.header-logo a { display: flex; align-items: center; gap: 10px; color: var(--text-color); font-size: 1.2rem; font-weight: 600; text-decoration: none; }
.header-logo .logo-icon { color: var(--primary-color); }
.header-right { display: flex; align-items: center; gap: 30px; }
.main-nav a, .user-menu a { font-weight: 500; color: var(--text-color); text-decoration: none; }
.user-menu { display: flex; align-items: center; gap: 15px; }
.logout-link { background-color: var(--secondary-color); padding: 6px 12px; border-radius: 6px; }
.logout-link:hover { background-color: var(--secondary-hover-color); }

main {
    display: flex;
    flex-grow: 1;
    overflow: hidden;
}

.sidebar-nav {
    width: 240px;
    background-color: var(--white-color);
    border-right: 1px solid var(--border-color);
    padding: 20px 0;
    flex-shrink: 0;
    overflow-y: auto;
}
.sidebar-nav ul { list-style: none; padding: 0; margin: 0; }
.sidebar-nav .menu-link { display: block; padding: 12px 25px; color: var(--text-color); font-weight: 500; border-left: 3px solid transparent; transition: all 0.3s ease; }
.sidebar-nav .menu-link:hover { background-color: var(--secondary-color); color: var(--primary-hover-color); text-decoration: none; }
.sidebar-nav .menu-link.active { background-color: #eaf5fc; color: var(--primary-hover-color); border-left-color: var(--primary-color); font-weight: 600; }

.content-wrapper {
    flex-grow: 1;
    padding: 30px;
    overflow-y: auto;
}

.site-footer {
    flex-shrink: 0;
    background-color: var(--white-color);
    text-align: center;
    padding: 20px;
    border-top: 1px solid var(--border-color);
    color: var(--dark-gray-color);
    font-size: 0.9rem;
}

/* --- Komponenty: Tlačítka --- */
.btn { display: inline-block; padding: 10px 20px; font-size: 1rem; font-weight: 500; border: none; border-radius: 6px; cursor: pointer; text-align: center; transition: background-color 0.2s ease, transform 0.1s ease; text-decoration: none !important; white-space: nowrap; }
.btn:hover { transform: translateY(-1px); }
.btn-sm { padding: 6px 12px; font-size: 0.9rem; }
.btn-primary { background-color: var(--primary-color); color: var(--white-color); }
.btn-primary:hover { background-color: var(--primary-hover-color); }
.btn-secondary { background-color: var(--secondary-color); color: var(--text-color); border: 1px solid var(--border-color); }
.btn-secondary:hover { background-color: var(--secondary-hover-color); }
.btn-success { background-color: var(--success-color); color: var(--white-color); }
.btn-success:hover { background-color: var(--success-hover-color); }
.btn-danger { background-color: var(--danger-color); color: var(--white-color); }
.btn-danger:hover { background-color: var(--danger-hover-color); }
.btn-info { background-color: var(--info-color); color: var(--white-color); }
.btn-info:hover { background-color: var(--info-hover-color); }
.btn-warning { background-color: var(--warning-color); color: var(--white-color); }
.btn-warning:hover { background-color: var(--warning-hover-color); }

/* --- Komponenty: Karty (Card) --- */
.card { background-color: var(--white-color); border-radius: 8px; border: 1px solid var(--border-color); box-shadow: 0 4px 6px var(--shadow-color); margin-bottom: 30px; overflow: hidden; }
.card-header { padding: 20px 25px; border-bottom: 1px solid var(--border-color); margin: 0; background-color: #fafbfd; }
.card-body { padding: 25px; }

/* --- Formuláře --- */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-weight: 500; margin-bottom: 8px; }
.form-control { width: 100%; padding: 12px; font-size: 1rem; border: 1px solid var(--border-color); border-radius: 6px; box-sizing: border-box; transition: border-color 0.2s ease, box-shadow 0.2s ease; }
.form-control:focus { outline: none; border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2); }

.filter-bar { padding: 20px; background-color: #fdfdff; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; }
.filter-group, .actions-group { display: flex; align-items: center; gap: 15px; flex-wrap: wrap; }
.filter-bar .form-group { margin-bottom: 0; display: flex; align-items: center; }
.filter-bar label { margin-bottom: 0; margin-right: 5px; font-weight: 600; }

.filter-bar .form-control {
    background-color: var(--white-color);
    color: var(--text-color);
    -webkit-appearance: none; -moz-appearance: none; appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%237f8c8d' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 35px !important;
}
.filter-bar input[type="month"].form-control { background-image: none; padding-right: 12px !important; }

/* --- Tabulky --- */
.responsive-table { width: 100%; overflow-x: auto; }
table.modern-table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
table.modern-table th, table.modern-table td { padding: 15px; text-align: left; border-bottom: 1px solid var(--border-color); }
table.modern-table th { background-color: var(--secondary-color); font-weight: 600; color: var(--text-color); }
table.modern-table tbody tr:hover { background-color: #fcfdff; }
table.modern-table .actions-cell { display: flex; gap: 10px; align-items: center; }
.d-inline { display: inline-block; }

/* --- Modální okna --- */
.modal { display: none; position: fixed; z-index: 1000; left: 0; top: 0; width: 100%; height: 100%; overflow: auto; background-color: rgba(0,0,0,0.5); backdrop-filter: blur(4px); }
.modal-content { background-color: var(--white-color); margin: 5% auto; border-radius: 8px; max-width: 800px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); animation: slide-down 0.4s ease-out; }
@keyframes slide-down { from { transform: translateY(-30px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.modal-header { padding: 20px 25px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
.modal-header .close { font-size: 2rem; font-weight: bold; color: var(--medium-gray-color); cursor: pointer; background: none; border: none; }
.modal-header .close:hover { color: var(--text-color); }
.modal-body { padding: 25px; display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
.modal-body .form-group { margin-bottom: 20px; }
.grid-span-2 { grid-column: 1 / -1; }
.modal-footer { padding: 15px 25px; border-top: 1px solid var(--border-color); background-color: var(--secondary-color); display: flex; justify-content: flex-end; gap: 10px; border-bottom-left-radius: 8px; border-bottom-right-radius: 8px; }

/* --- Ostatní komponenty --- */
.flash-message { padding: 15px 20px; margin-bottom: 20px; border-radius: 6px; color: var(--white-color); font-weight: 500; }
.flash-message.success { background-color: var(--success-color); }
.flash-message.error { background-color: var(--danger-color); }
.flash-message.warning { background-color: var(--warning-color); }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.stat-card { background-color: var(--white-color); padding: 25px; border-radius: 8px; display: flex; align-items: center; gap: 20px; border: 1px solid var(--border-color); }
.stat-card .icon { font-size: 2.5rem; }
.stat-card .info h4 { margin: 0 0 5px 0; font-size: 1.8rem; }
.stat-card .info p { margin: 0; color: var(--dark-gray-color); }

.calendar-navigation { display: flex; justify-content: space-between; align-items: center; padding: 20px; }
.calendar-navigation .btn { margin-top: 0; margin-bottom: 0; }
.calendar-grid { width: 100%; border-collapse: collapse; }
.calendar-grid th, .calendar-grid td { width: 14.28%; height: 120px; vertical-align: top; padding: 8px; border: 1px solid var(--border-color); }
.calendar-grid th { height: auto; text-align: center; padding: 10px; background-color: var(--secondary-color); }
.calendar-grid .day-number { font-weight: 600; font-size: 0.9rem; }
.calendar-grid .weekend { background-color: #fdfdfe; }
.calendar-grid .today { background-color: #fefcf5; border: 2px solid var(--warning-color); }
.calendar-grid .other-month { background-color: var(--secondary-color); }

/* ZÁLOŽKY - ZDE JE NOVÝ, VÝRAZNĚJŠÍ VZHLED */
.sub-tab-menu {
    border-bottom: 1px solid var(--border-color);
    padding: 0 20px;
    display: flex;
    gap: 5px;
}
.sub-tab-link {
    background-color: var(--secondary-color);
    border: 1px solid var(--border-color);
    border-bottom: none;
    border-top-left-radius: 6px;
    border-top-right-radius: 6px;
    padding: 12px 20px;
    font-size: 1rem;
    cursor: pointer;
    font-weight: 500;
    color: var(--dark-gray-color);
    transition: all 0.2s ease;
    position: relative;
    bottom: -1px;
}
.sub-tab-link:hover:not(.active) {
    background-color: var(--secondary-hover-color);
}
.sub-tab-link.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--white-color);
    font-weight: 600;
    bottom: -1px; /* Mírně upraveno pro lepší vzhled */
}
/* KONEC ZMĚN PRO ZÁLOŽKY */

.status-badge { display: inline-block; padding: 5px 12px; font-size: 0.9rem; font-weight: 600; line-height: 1.4; text-align: center; border-radius: 15px; color: var(--white-color) !important; min-width: 80px; }

.absence-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); gap: 20px; padding: 20px; }
.absence-card { background-color: var(--white-color); border: 1px solid var(--border-color); border-left: 5px solid var(--primary-color); border-radius: 6px; box-shadow: 0 2px 4px var(--shadow-color); }
.absence-card-header { display: flex; justify-content: space-between; align-items: center; padding: 15px; border-bottom: 1px solid var(--border-color); }
.absence-card-header h4 { margin: 0; font-size: 1.1rem; }
.absence-card-body { padding: 15px; display: grid; gap: 10px; }
.absence-card .info-item { display: flex; justify-content: space-between; }
.absence-card .info-item strong { color: var(--dark-gray-color); }

/* --- Responzivní design --- */
@media (max-width: 992px) {
    .app-container { min-height: 0; }
    main { flex-direction: column; height: auto; overflow: visible; }
    .sidebar-nav { width: 100%; height: auto; border-right: none; border-bottom: 1px solid var(--border-color); display: flex; justify-content: center; padding: 0; }
    .sidebar-nav ul { display: flex; flex-wrap: wrap; justify-content: center; }
    .sidebar-nav .menu-link { border-left: none; border-bottom: 3px solid transparent; }
     .sidebar-nav .menu-link.active { border-bottom-color: var(--primary-color); }
    .content-wrapper { padding: 20px; overflow-y: visible; }
}
@media (max-width: 768px) {
    .header-right { display: none; }
    .filter-bar { flex-direction: column; align-items: stretch; }
    .modal-content { margin: 5% auto; width: 90%; }
    .modal-body { grid-template-columns: 1fr; }
    .grid-span-2 { grid-column: 1; }
}
/* --- Styly pro přihlašovací stránku --- */
main.login-page-main {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-grow: 1; /* Zajistí, že <main> vyplní dostupnou výšku */
    padding: 30px;
}

.login-container {
    width: 100%;
    max-width: 450px;
}

.login-container .card-header {
    text-align: center;
    font-size: 1.6rem;
}

.login-container .card-body {
    padding: 30px;
}

.login-container .btn {
    width: 100%; /* Tlačítko bude přes celou šířku karty */
    padding: 12px;
    font-size: 1.1rem;
    margin-top: 10px;
}

.form-options {
    display: flex;
    justify-content: flex-end; /* Posune odkaz doprava */
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.app-logo {
    text-align: center;
    margin-bottom: 25px;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-color);
}

.app-logo span {
    color: var(--primary-color);
}