/* ================================================= */
/* ===         ZPĚVNÍK - HLAVNÍ STYLY            === */
/* ===         (Refaktorovaná verze)             === */
/* ================================================= */

/* === 1. ZÁKLADNÍ NASTAVENÍ A PROMĚNNÉ === */
:root {
    --bg-color: #f8f9fa;
    --text-color: #212529;
    --primary-color: #4c9143;
    --primary-hover-color: #30793c;
    --border-color: #dee2e6;
    --header-bg: #ffffff;
    --font-main: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

body.dark-mode {
    --bg-color: #212529;
    --text-color: #f8f9fa;
    --border-color: #495057;
    --header-bg: #343a40;
}

/* Bootstrap dark mode overrides */
body.dark-mode .btn-outline-secondary {
    color: #f8f9fa;
    border-color: #6c757d;
}

body.dark-mode .btn-outline-secondary:hover {
    background-color: #6c757d;
    color: #212529;
}

body.dark-mode .page-link {
    background-color: #343a40;
    border-color: #495057;
    color: #f8f9fa;
}

body.dark-mode .page-item.active .page-link {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

body.dark-mode .pagination .page-link:hover {
    background-color: #6c757d;
    color: #212529;
}

body.dark-mode .form-control {
    background-color: #343a40;
    border-color: #495057;
    color: #f8f9fa;
}

body.dark-mode .form-control:focus {
    background-color: #343a40;
    border-color: var(--primary-color);
    color: #f8f9fa;
    box-shadow: 0 0 0 0.25rem rgba(76, 145, 67, 0.25);
}

body.dark-mode .border {
    border-color: #495057 !important;
}

body.dark-mode .border-bottom {
    border-color: #495057 !important;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    height: 100%;
}

body {
    min-height: 100%;
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

/* === 2. OBECNÉ A ZNOVUPOUŽITELNÉ KOMPONENTY === */

/* --- A. Základní layout --- */
.container {
    max-width: 1100px;
    margin: 2rem auto;
    padding: 0 1rem;
}

header {
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    padding: 0 2rem;
    position: sticky;
    top: 0;
    z-index: 1000;
}

footer {
    text-align: center;
    padding: 1.5rem;
    margin-top: 2rem;
    font-size: 0.9rem;
    color: #6c757d;
    border-top: 1px solid var(--border-color);
}

/* --- B. Navigace --- */
.navbar-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-color);
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
    max-width: 1600px;
    margin: auto;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

.main-nav ul {
    display: flex;
    list-style-type: none;
    align-items: center;
}

.main-nav ul li a {
    padding: 0 1rem;
    height: 60px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-color);
    transition: background-color 0.2s;
}

.main-nav ul li a:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

body.dark-mode .main-nav ul li a:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.mobile-menu-button {
    display: none;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 2rem;
    cursor: pointer;
    padding: 0.5rem;
}

/* --- C. Formulářové prvky --- */
.form-section {
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.form-section fieldset {
    border: none;
    padding: 0;
    margin: 0;
}

.form-section legend {
    font-size: 1.2rem;
    font-weight: bold;
    padding: 0 10px;
    margin-left: -10px;
}

.form-section label {
    font-weight: bold;
    display: block;
    margin-top: 1rem;
    margin-bottom: 0.5rem;
}

.form-section input[type="url"],
.form-section input[type="text"],
.form-section input[type="number"],
.form-section textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    box-sizing: border-box;
}

.form-section button {
    font-size: 1rem;
    padding: 10px 20px;
    border: none;
    background-color: var(--primary-color);
    color: white;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 1.5rem;
    transition: background-color 0.2s;
}

.form-section button:hover {
    background-color: var(--primary-hover-color);
}

/* --- D. Tlačítka a Odkazy jako tlačítka --- */
.btn,
a.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background-color: var(--primary-color);
    color: white !important;
    /* !important zajistí přepsání barvy odkazu */
    text-decoration: none;
    border: none;
    border-radius: 5px;
    margin: 0 5px;
    transition: background-color 0.2s;
    cursor: pointer;
    text-align: center;
}

.btn:hover,
a.btn:hover {
    background-color: var(--primary-hover-color);
    color: white !important;
}

fieldset:disabled {
    opacity: 0.5;
}

/* --- D. Zprávy a notifikace --- */
.message {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 4px;
}

.message.success {
    background-color: #d4edda;
    color: #155724;
}

.message.error {
    background-color: #f8d7da;
    color: #721c24;
}

/* --- E. Modální okna --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1001;
    padding: 1rem;
}

.modal-content {
    background-color: var(--bg-color);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    color: var(--text-color);
    max-height: 85vh;
    display: flex;
    flex-direction: column;
}

.btn-close-modal {
    background-color: #6c757d;
    color: white;
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 1.5rem;
    flex-shrink: 0;
}

/* === 3. STYLY PRO KONKRÉTNÍ STRÁNKY === */

/* --- A. Homepage (index.php) --- */
body.homepage-body {
    height: 100vh;
    overflow: hidden;
}

body.homepage-body .container {
    max-width: none;
    padding: 0;
    margin: 0;
    height: 100%;
}

body.homepage-body header,
body.homepage-body footer {
    display: none;
}

.search-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-image: url('../img/background.jpg');
    background-size: cover;
    background-position: center;
    text-align: center;
    padding: 2rem;
    color: white;
}

.homepage-title {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.search-box {
    position: relative;
    width: 50vw;
    max-width: 800px;
    margin: auto;
}

#search-input {
    width: 100%;
    padding: 1rem;
    font-size: 1.2rem;
    background-color: #cbcbcb;
    border-radius: 50px;
    border: 2px solid transparent;
    outline: none;
    transition: border-color 0.2s;
    color: #333;
    text-align: center; /* Center text horizontally */
}

#search-input:focus {
    border-color: var(--primary-color);
}

.search-results-dropdown {
    display: none;
    position: absolute;
    width: 100%;
    top: 100%;
    left: 0;
    background-color: white;
    border-radius: 10px;
    margin-top: 5px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    max-height: 300px;
    overflow-y: auto;
    text-align: left;
    z-index: 1001;
}

.search-results-dropdown ul {
    list-style-type: none;
}

.search-results-dropdown li a {
    display: block;
    padding: 0.8rem 1.2rem;
    color: #333;
    text-decoration: none;
    transition: background-color 0.2s;
}

.search-results-dropdown li a:hover {
    background-color: #f1f1f1;
}

.search-results-dropdown li.active a {
    background-color: var(--primary-color);
    color: white;
}

.search-results-dropdown .no-results {
    padding: 0.8rem 1.2rem;
    color: #888;
}

.homepage-links {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.homepage-links a {
    margin-bottom: 1rem;
    width: 300px; /* Fixed width for buttons */
}

/* --- B. Data Table Styles --- */
.data-table-controls {
    background-color: var(--header-bg);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

.data-table-info {
    font-weight: bold;
}

.data-table-pagination button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.sort-indicator {
    font-size: 0.8rem;
    margin-left: 0.5rem;
}

body.dark-mode .data-table-controls {
    background-color: var(--header-bg);
    border-color: var(--border-color);
}

body.dark-mode .table-striped > tbody > tr:nth-of-type(odd) > * {
    --bs-table-accent-bg: #2a2f35;
    color: var(--text-color);
}

body.dark-mode .table-hover > tbody > tr:hover > * {
    --bs-table-accent-bg: #343a40;
    color: var(--text-color);
}

/* --- C. Song List (list.php) --- */
.song-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.song-header .right-group {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.song-header .right-group a {
    color: var(--primary-color);
}

.filter-box {
    margin: 2rem 0;
}

.filter-box input {
    width: 100%;
    padding: 0.8rem;
    font-size: 1rem;
    border-radius: 5px;
    border: 1px solid var(--border-color);
}

.song-list {
    margin-top: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.song-list-item-wrapper {
    display: flex;
    align-items: stretch;
    border-bottom: 1px solid var(--border-color);
}

.song-list-item-wrapper:last-child {
    border-bottom: none;
}

.song-list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.7rem 1.5rem;
    width: 100%;
}

a.song-title-link {
    text-decoration: none;
    color: inherit;
    flex-grow: 1;
}

.song-title {
    font-weight: bold;
}

.song-artist {
    font-size: 0.9em;
    color: #6c757d;
    text-align: right;
}

body.dark-mode .song-artist {
    color: #adb5bd;
}

.edit-link,
.delete-link {
    flex-shrink: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 1.5rem;
    text-decoration: none;
    color: #aaa;
    border-left: 1px solid var(--border-color);
    transition: background-color 0.2s, color 0.2s;
}

.delete-link:hover {
    background-color: #f8d7da;
    color: #721c24;
}

body.dark-mode .song-list-item-wrapper:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

/* --- D. Alphabetical Filter --- */
.alphabet-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.alpha-btn {
    background-color: #f1f1f1;
    border: 1px solid #ddd;
    color: #333;
    padding: 8px 12px;
    cursor: pointer;
    border-radius: 5px;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.alpha-btn:hover {
    background-color: #ddd;
}

.alpha-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    font-weight: bold;
}

body.dark-mode .alpha-btn {
    background-color: #444;
    border-color: #666;
    color: #eee;
}

body.dark-mode .alpha-btn:hover {
    background-color: #555;
}

body.dark-mode .alpha-btn.active {
    background-color: var(--primary-color);
    color: white;
}

.letter-heading {
    margin-top: 2rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
}

.song-group:first-child .letter-heading {
    margin-top: 0;
}

/* --- E. Performer Tags (použito na list.php a song.php) --- */
.song-artist a.performer-link,
.song-performers a.performer-link {
    display: inline-block;
    text-decoration: none;
    background-color: #f1f1f1;
    color: #333;
    padding: 2px 8px;
    border-radius: 15px;
    font-size: 0.85rem;
    margin-right: 5px;
    margin-bottom: 5px;
    transition: all 0.2s;
}

.song-artist a.performer-link:hover,
.song-performers a.performer-link:hover {
    background-color: #ddd;
    color: #000;
    text-decoration: none;
}

body.dark-mode .song-artist a.performer-link,
body.dark-mode .song-performers a.performer-link {
    background-color: #444;
    color: #eee;
    border: 1px solid #666;
}

body.dark-mode .song-artist a.performer-link:hover,
body.dark-mode .song-performers a.performer-link:hover {
    background-color: #555;
    color: #fff;
}

/* Toto pravidlo zajistí, že odkazy na písničky v modálním okně i na stránce interpreta
   nebudou modré, ale přebiorou barvu textu daného motivu. */
.song-list-columns .song-list-item-wrapper a,
#modal-song-list .song-list-item-wrapper a {
    color: var(--text-color);
    text-decoration: none;
}

/* Zachováme hover efekt i na těchto místech */
#modal-song-list .song-list-item-wrapper:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

body.dark-mode #modal-song-list .song-list-item-wrapper:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

/* === STYLY PRO NOVÝ INLINE EDITOR OBRÁZKŮ === */
.current-performer-photo {
    max-width: 250px;
    height: auto;
    border-radius: 8px;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

#cropper-container-inline {
    width: 100%;
    height: 360px; /* Pevná výška pro ořezávací plochu */
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    position: relative;
    background-color: var(--bg-color);
    margin-top: 1rem;
}

#cropper-placeholder {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
    text-align: center;
    color: #888;
}

#cropper-placeholder .material-symbols-outlined {
    font-size: 4rem;
    color: #ccc;
}
body.dark-mode #cropper-placeholder .material-symbols-outlined { color: #555; }

.btn-secondary {
    padding: 0.5rem 1rem;
    background-color: #6c757d;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
.btn-secondary:hover { background-color: #5a6268; }

#image-to-crop-inline {
    display: block;
    max-width: 100%;
    opacity: 0; /* Skryjeme, dokud se nenahraje obrázek */
}

#image-editor-container .cropper-container {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
}

.image-editor-actions {
    margin-top: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* === 8. STYLY PRO PŘIHLÁŠOVACÍ STRÁNKU (login.php) === */

/* Použijeme stejné pozadí jako na homepage */
body.login-page-body {
    height: 100vh;
    overflow: hidden;
    background-image: url('../img/background.jpg');
    background-size: cover;
    background-position: center;
}

/* Skryjeme standardní hlavičku a patičku */
body.login-page-body header,
body.login-page-body footer {
    display: none;
}

/* Hlavní kontejner, který vše vycentruje */
.login-wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 2rem;
    color: white;
    background-color: rgba(0, 0, 0, 0.5); /* Ztmavující překryv pro lepší čitelnost */
}

/* Language selector styles */
.language-selector select {
    background-color: var(--header-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.9rem;
}

.language-selector select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Box pro samotný formulář */
.login-box {
    width: 100%;
    max-width: 500px;
}

.login-box h1 {
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.login-box p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

/* Úprava formuláře, aby byl bez ohraničení */
.login-box .form-section {
    border: none;
    background: none;
    padding: 0;
}

/* Nový styl pro pole s heslem, inspirovaný vyhledáváním */
.login-box input[type="password"] {
    width: 100%;
    padding: 1rem;
    font-size: 1.2rem;
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 50px;
    border: 2px solid transparent;
    outline: none;
    transition: border-color 0.2s, background-color 0.2s;
    color: #333;
    text-align: center;
}

.login-box input[type="password"]:focus {
    background-color: white;
    border-color: var(--primary-color);
}

/* Tlačítko Vstoupit */
.login-box button {
    width: 100%;
    padding: 1rem;
    margin-top: 1rem;
    border-radius: 50px;
    font-size: 1.2rem;
}