/*
 * /var/www/tak/WEB_picture_and_media/style.css
 * Hlavní stylopis pro TAK portál
 */

/* --- Základní nastavení a proměnné --- */
:root {
    --primary-bg: #111827; /* Tmavě modrošedá (pozadí) */
    --secondary-bg: #1f2937; /* Tmavší šedá (panely, karty) */
    --tertiary-bg: #374151; /* Světlejší šedá (hover, aktivní prvky) */
    --border-color: #4b5563; /* Barva ohraničení */
    --text-primary: #f9fafb; /* Hlavní text (téměř bílá) */
    --text-secondary: #d1d5db; /* Druhotný text (světle šedá) */
    --accent-color: #38bdf8; /* Akcentová barva (světle modrá) */
    --success-bg: #166534; /* Zelená pro úspěch */
    --success-text: #f0fdf4;
    --error-bg: #991b1b; /* Červená pro chyby */
    --error-text: #fef2f2;
    --font-sans: 'Inter', sans-serif;
}

/* ===== KLÍČOVÁ OPRAVA ZDE ===== */
/* Toto pravidlo zajistí, že HTML atribut 'hidden' bude vždy fungovat,
   i když jiné styly (jako 'form { display: flex; }') se ho snaží přebít. */
[hidden] {
    display: none !important;
}

body {
    font-family: var(--font-sans);
    background-color: var(--primary-bg);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    margin: 0;
    padding: 0;
}

/* --- Hlavička a Navigace --- */
header {
    background-color: var(--secondary-bg);
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

header .logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

header .logo-container img {
    height: 50px;
    width: auto;
}

header .logo-container h1 {
    font-size: 1.5rem;
    margin: 0;
    color: var(--text-primary);
}

.page-description {
    flex-grow: 1;
    text-align: center;
    margin: 0 2rem;
}

.page-description h2 {
    font-size: 1.75rem;
    font-weight: 600;
    margin: 0;
    padding: 0;
    color: var(--text-primary);
    border-bottom: none;
}

.main-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    transition: background-color 0.2s, color 0.2s;
}

.main-nav a:hover, .main-nav a.active {
    background-color: var(--tertiary-bg);
    color: var(--text-primary);
}

/* --- Hlavní obsah --- */
main {
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

section {
    background-color: var(--secondary-bg);
    padding: 1.5rem;
    border-radius: 0.5rem;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
}

h2 {
    font-size: 1.25rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
    margin-top: 0;
    margin-bottom: 1rem;
}

/* --- Formulářové prvky --- */
form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

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

input[type="text"],
input[type="password"],
input[type="email"],
input[type="url"],
select {
    background-color: var(--primary-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem;
    border-radius: 0.375rem;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus,
input[type="url"]:focus,
select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px var(--primary-bg), 0 0 0 4px var(--accent-color);
}

button, .button {
    background-color: var(--accent-color);
    color: var(--primary-bg);
    font-weight: bold;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.375rem;
    cursor: pointer;
    font-size: 1rem;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    transition: background-color 0.2s;
}

button:hover, .button:hover {
    background-color: #67cffb;
}

button.danger {
    background-color: var(--error-bg);
    color: var(--error-text);
}
button.danger:hover {
    background-color: #b91c1c;
}

/* --- Tabulky --- */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

th, td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background-color: var(--tertiary-bg);
    color: var(--text-primary);
    font-weight: 600;
}

tbody tr:nth-child(even) {
    background-color: var(--primary-bg);
}

tbody tr:hover {
    background-color: var(--tertiary-bg);
}

/* === SEKCE PRO LOGY A DLOUHÝ TEXT === */
/* Specifické styly pro tabulky s logy, aby se nerozbil vzhled */
#log-list table,
#db-maintenance table {
    table-layout: fixed; /* Donutí tabulku respektovat šířky sloupců */
    width: 100%;
}

/* Pravidla pro zalamování textu v buňkách těchto tabulek */
#log-list table td,
#db-maintenance table td {
    word-wrap: break-word;     /* Pro starší prohlížeče */
    overflow-wrap: break-word; /* Moderní standardní vlastnost */
}

/* Speciální pravidla pro <pre> tagy uvnitř logovacích tabulek */
#log-list table td pre,
#db-maintenance table td pre {
    white-space: pre-wrap;   /* Zachová formátování, ale zalamuje řádky */
    word-break: break-all;   /* Umožní zlomit text kdekoli, i uprostřed slova */
    margin: 0; /* Vynuluje defaultní odsazení <pre> tagu */
}
/* === KONEC SEKCE PRO LOGY === */


/* --- Notifikační zprávy --- */
.info-message {
    padding: 1rem;
    margin-bottom: 1.5rem;
    border-radius: 0.375rem;
    border: 1px solid transparent;
}

.info-message.success {
    background-color: var(--success-bg);
    color: var(--success-text);
    border-color: #22c55e;
    display: block;
}

.info-message.error {
    background-color: var(--error-bg);
    color: var(--error-text);
    border-color: #ef4444;
    display: block;
}

/* --- Styly pro TAKmanuals --- */
.manual-section {
    background-color: var(--secondary-bg);
    padding: 0;
    border-radius: 0.5rem;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.manual-heading summary {
    padding: 1rem 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
}

.summary-main-content {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.manual-heading summary h2 {
    border-bottom: none;
    margin: 0;
    padding: 0;
}

.heading-description {
    font-style: italic;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0.25rem 0 0 0;
    padding: 0;
    line-height: 1.3;
}

.manual-content {
    padding: 0 1.5rem 1.5rem 1.5rem;
    border-top: 1px solid var(--border-color);
}
.manual-content ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.content-item {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--tertiary-bg);
}
.content-item:last-child {
    border-bottom: none;
}

.item-display {
    flex-grow: 1;
    min-width: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.item-main-info {
    flex-grow: 1; 
    min-width: 0; 
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis; 
}

.item-main-info a, .item-main-info .text-content {
    color: var(--accent-color);
    text-decoration: none;
}

.item-main-info a:hover {
    text-decoration: underline;
}

.item-main-info .text-content {
    color: var(--text-primary);
}

.item-date {
    flex-shrink: 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-style: italic;
}


/* Styly pro admin akce */
.admin-actions form.add-heading-form {
    display: flex;
    gap: 1rem;
}
.admin-actions input {
    flex-grow: 1;
}

.delete-heading-form {
    display: inline;
}
.delete-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.25rem;
    line-height: 1;
}
.delete-btn:hover {
    color: var(--error-bg);
}

.add-content-area {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px dashed var(--border-color);
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}
.add-btn {
    background-color: var(--tertiary-bg);
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
}
.add-form {
    margin-top: 1rem;
    padding: 1rem;
    background-color: var(--primary-bg);
    border-radius: 0.375rem;
}
.add-form label {
    margin-bottom: 0.5rem;
    display: block;
}

.add-form button[type="submit"] {
    width: auto;
    align-self: flex-start;
}

textarea {
    background-color: var(--primary-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem;
    border-radius: 0.375rem;
    font-size: 1rem;
    font-family: var(--font-sans);
    transition: border-color 0.2s, box-shadow 0.2s;
    min-height: 80px;
    width: 100%;
    box-sizing: border-box;
    margin-bottom: 0.5rem;
}
textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px var(--primary-bg), 0 0 0 4px var(--accent-color);
}

.file-upload-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}
.file-upload-wrapper input[type="file"] {
    display: none;
}
.file-upload-label {
    background-color: var(--tertiary-bg);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: background-color 0.2s;
    display: inline-block;
}
.file-upload-label:hover {
    background-color: #4b5563;
}
.file-upload-filename {
    color: var(--text-secondary);
    font-style: italic;
}

/* --- Responzivita --- */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    main {
        padding: 1rem;
    }
    .item-display {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }
}
/* --- Styly pro editační prvky v TAKmanuals --- */

.heading-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

.item-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

.edit-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.25rem;
    line-height: 1;
}
.edit-btn:hover {
    color: var(--accent-color);
}

.edit-form {
    margin-top: 1rem;
    padding: 1rem;
    background-color: var(--primary-bg);
    border-radius: 0.375rem;
    width: 100%;
    box-sizing: border-box;
}

.item-display-actions-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    gap: 1rem;
}

/* NOVÉ: Styly pro stránkování */
.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.5rem;
    margin-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.pagination span {
    color: var(--text-secondary);
    font-weight: 500;
}

.pagination .button {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}