/* =========================================
   1. ZMIENNE I MOTYWY (Light / Dark)
   ========================================= */
:root {
    /* Motyw JASNY (Domyślny) */
    --bg-body: #f4f6f8;
    --bg-container: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-nav: #2c3e50;
    
    --text-main: #333333;
    --text-muted: #666666;
    --text-nav: #ffffff;
    
    --border-color: #dddddd;
    
    /* Kolory akcentów */
    --accent: #3498db;       /* Niebieski główny */
    --accent-hover: #2980b9;
    --success: #2ecc71;      /* Zielony */
    --danger: #e74c3c;       /* Czerwony */
    --warning: #f1c40f;      /* Żółty */
    
    /* Muzyka */
    --chord-color: #e74c3c;  /* Czerwone chwyty na jasnym tle */
    --font-mono: 'Courier New', Courier, monospace;
}

/* Motyw CIEMNY (aktywowany przez JS: data-theme="dark") */
[data-theme="dark"] {
    --bg-body: #121212;
    --bg-container: #1e1e1e;
    --bg-secondary: #2c2c2c;
    --bg-nav: #000000;
    
    --text-main: #e0e0e0;
    --text-muted: #a0a0a0;
    --text-nav: #e0e0e0;
    
    --border-color: #444444;
    
    --accent: #5dade2;       /* Jaśniejszy niebieski dla kontrastu */
    --accent-hover: #3498db;
    
    --chord-color: #ff9f43;  /* Pomarańczowe chwyty na ciemnym tle */
}

/* =========================================
   2. RESET I STYLE BAZOWE
   ========================================= */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text_decoration: underline;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* =========================================
   3. NAWIGACJA
   ========================================= */
nav {
    background-color: var(--bg-nav);
    color: var(--text-nav);
    padding: 1rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

nav a {
    color: var(--text-nav);
    margin-right: 15px;
    font-weight: 500;
}

nav a:hover {
    color: var(--accent);
    text-decoration: none;
}

/* =========================================
   4. FORMULARZE I PRZYCISKI
   ========================================= */
input[type="text"],
input[type="email"],
input[type="password"],
textarea,
select {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-container);
    color: var(--text-main);
    font-family: inherit;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 3px rgba(52, 152, 219, 0.5);
}

button, .btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--accent);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    text-align: center;
    transition: background 0.2s;
}

button:hover, .btn:hover {
    background-color: var(--accent-hover);
    text-decoration: none;
}

.btn-danger { background-color: var(--danger); }
.btn-success { background-color: var(--success); }
.btn-warning { background-color: var(--warning); color: #333; }

/* =========================================
   5. TABELE I LISTY
   ========================================= */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background-color: var(--bg-container);
    border-radius: 8px;
    overflow: hidden; /* Zaokrąglone rogi tabeli */
}

th, td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background-color: var(--bg-secondary);
    font-weight: 600;
}

tr:hover {
    background-color: rgba(0,0,0,0.02);
}

/* W Dark Mode lekko rozjaśniamy wiersze parzyste/hover */
[data-theme="dark"] tr:hover {
    background-color: rgba(255,255,255,0.05);
}

/* =========================================
   6. KOMPONENTY: ALERTY I ODZNAKI (BADGES)
   ========================================= */
.alert {
    padding: 15px;
    margin-bottom: 20px;
    border: 1px solid transparent;
    border-radius: 4px;
}

.alert-success { background-color: #d4edda; color: #155724; border-color: #c3e6cb; }
.alert-error, .alert-danger { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.alert-warning { background-color: #fff3cd; color: #856404; border-color: #ffeeba; }

.badge {
    display: inline-block;
    padding: 0.25em 0.4em;
    font-size: 75%;
    font-weight: 700;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: 0.25rem;
    color: #fff;
}

.badge-owner { background-color: var(--danger); }
.badge-moderator { background-color: var(--warning); color: #333; }
.badge-member { background-color: var(--accent); }

/* =========================================
   7. SPECYFICZNE DLA MUZYKI (PIOSENKI I PLAYER)
   ========================================= */

/* Kontener tekstu piosenki */
.song-text-area, .song-content {
    font-family: var(--font-mono);
    font-size: 16px; /* Lub 18px dla lepszej widoczności na scenie */
    white-space: pre-wrap; /* Zachowuje entery i spacje */
    line-height: 3.0; /* Bardzo ważne: miejsce na chwyty nad tekstem */
    background-color: var(--bg-container);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    overflow-x: auto; /* Przewijanie jak linijka jest za długa */
    position: relative;
}

/* Styl chwytu gitarowego */
.chord-span {
    position: absolute;
    margin-top: -1.5em; /* Przesunięcie w górę nad tekst */
    font-weight: bold;
    color: var(--chord-color);
    font-size: 0.9em;
    user-select: none; /* Żeby przy kopiowaniu tekstu nie kopiować chwytów (opcjonalne) */
    background-color: rgba(0,0,0,0.05); /* Delikatne tło pod chwytem */
    padding: 0 4px;
    border-radius: 4px;
}

[data-theme="dark"] .chord-span {
    background-color: rgba(255,255,255,0.1);
}

/* Player na żywo */
.player-nav {
    background-color: #000 !important; /* Zawsze czarny pasek w trybie playera */
    border-bottom: 1px solid #333;
}

.player-btn {
    font-size: 0.9em;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* =========================================
   8. KARTY (Dashboard / Grupy)
   ========================================= */
.group-card, .stat-card {
    background-color: var(--bg-container);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.group-card:hover, .stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.group-card.active {
    border-color: var(--accent);
    border-width: 2px;
}

/* =========================================
   9. STRONA LOGOWANIA (Auth)
   ========================================= */
.auth-container {
    background-color: var(--bg-container);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

/* =========================================
   10. RESPANSYWNOŚĆ (Mobile)
   ========================================= */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
        align-items: flex-start;
    }
    
    nav a {
        margin-bottom: 10px;
        display: block;
    }

    .song-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr; /* Jedna kolumna na telefonie */
    }

    .edit-container {
        flex-direction: column;
    }
}