:root {
    --primary-dark: #2c3e50;
    --secondary-dark: #34495e;
    --bg-light: #f4f7f6;
    --text-muted: #7f8c8d;
    --text-light: #bdc3c7;
    --success: #27ae60;
    --warning: #e67e22;
    --danger: #e74c3c;
    --accent: #007bff;
    --accent-hover: #0056b3;
    --shadow: 0 4px 15px rgba(0,0,0,0.1);
}

/* Reset i bazy */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    background-color: var(--bg-light);
    color: #333;
}

/* Wspólne elementy formularzy */
input[type="text"], 
input[type="password"], 
input[type="email"], 
input[type="number"],
input[type="file"],
input[type="date"],
input[type="datetime-local"],
select, 
textarea {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    box-sizing: border-box;
    border: 1px solid #ddd;
    border-radius: 10px; /* Zaokrąglone pola */
    font-family: inherit;
    font-size: 14px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    outline: none;
    background-color: #fff;
}

select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' 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 12px center;
    background-size: 16px;
    padding-right: 40px !important;
    background-clip: padding-box; /* Wymusza trzymanie się tła wewnątrz zaokrąglonych rogów */
    cursor: pointer;
}

/* Usuwa domyślną strzałkę w IE i Edge */
select::-ms-expand {
    display: none;
}

/* Usuwa kropkowane obramowanie tekstu w Firefox po kliknięciu */
select:-moz-focusring {
    color: transparent;
    text-shadow: 0 0 0 var(--primary-dark);
}

input[type="text"]:hover, 
input[type="password"]:hover, 
input[type="email"]:hover, 
input[type="number"]:hover, 
input[type="file"]:hover, 
select:hover, 
textarea:hover {
    border-color: var(--text-light);
}

input[type="text"]:focus, 
input[type="password"]:focus, 
input[type="email"]:focus, 
input[type="number"]:focus, 
input[type="file"]:focus, 
select:focus, 
textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
    background-color: #fff;
}

/* Stylizacja przycisku wewnątrz pola pliku */
input[type="file"]::file-selector-button {
    padding: 8px 15px;
    border-radius: 50px;
    border: 1px solid #ddd;
    background: white;
    cursor: pointer;
    margin-right: 15px;
    transition: all 0.3s ease;
    font-weight: 600;
    font-family: inherit;
}

input[type="file"]::file-selector-button:hover {
    background: var(--bg-light);
    border-color: var(--text-light);
}

button, .btn {
    padding: 12px 25px;
    border: 1px solid transparent;
    border-radius: 50px; /* Bardzo zaokrąglone przyciski */
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    font-weight: 600;
    font-family: inherit;
    font-size: 14px;
    line-height: 1.2;
    box-sizing: border-box;
    vertical-align: middle;
}

.btn-primary {
    background: var(--accent);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0,123,255,0.3);
}

/* Ekran logowania */
.login-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.login-box {
    background: white;
    padding: 2.5rem;
    border-radius: 20px; /* Bardziej zaokrąglone okno logowania */
    box-shadow: var(--shadow);
    width: 350px;
}

.error-msg {
    color: var(--danger);
    font-size: 0.9rem;
    margin-bottom: 10px;
    background: #fee;
    padding: 10px;
    border-radius: 8px;
}

/* Layout Dashboardu */
.dashboard-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background-color: var(--primary-dark);
    color: white;
    padding: 20px;
    box-sizing: border-box;
    flex-shrink: 0; /* Zapobiega zwężaniu się menu przy szerokiej treści w main-content */
}

.main-content {
    flex-grow: 1;
    padding: 40px;
}

/* Karty statystyk */
.stats-grid {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.stat-card {
    background: white;
    padding: 25px;
    border-radius: 15px; /* Zaokrąglone karty */
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    flex: 1;
}

.stat-card .value {
    font-size: 2.2rem;
    font-weight: bold;
    color: var(--primary-dark);
    display: block;
    margin-top: 5px;
}

/* Dodatkowe style panelu bocznego i menu */
.sidebar h2 { font-size: 1.2rem; margin-bottom: 20px; border-bottom: 1px solid var(--secondary-dark); padding-bottom: 10px; }
.user-info { margin-bottom: 30px; font-size: 0.9rem; line-height: 1.6; }
.role-badge { background: var(--success); padding: 2px 10px; border-radius: 50px; font-size: 0.75rem; color: white; }
.role-badge.admin { background: var(--warning); }

.nav-menu { list-style: none; padding: 0; margin: 0; }
.nav-menu li { margin: 8px 0; }
.nav-menu a { 
    color: var(--text-light); 
    text-decoration: none; 
    display: block; 
    padding: 12px; 
    border-radius: 12px; 
    transition: all 0.3s ease; 
}
.nav-menu a:hover { background: var(--secondary-dark); color: white; transform: translateX(5px); }
.nav-menu a.active-menu-item {
    background: var(--secondary-dark);
    color: white;
}

.logout-btn { color: var(--danger) !important; margin-top: 30px; border-top: 1px solid var(--secondary-dark); padding-top: 15px !important; }

.header h1 { margin: 0 0 10px 0; color: var(--primary-dark); }

/* Style dla tabel */
.content-card {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    margin-top: 20px;
}

.styled-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.styled-table th, .styled-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #eee;
    vertical-align: middle; /* Powrót do naturalnego wyrównania */
}

.styled-table th {
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
}

.badge {
    padding: 5px 12px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-success { background: #e8f5e9; color: var(--success); }
.badge-gray { background: #f5f5f5; color: var(--text-muted); }
.badge-info { background: #e3f2fd; color: var(--accent); }

.terms-container {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.actions { 
    display: flex; 
    gap: 10px; 
    align-items: center; /* Wyśrodkowanie przycisków w pionie wewnątrz kontenera */
}
.btn-sm { padding: 8px 15px; font-size: 0.85rem; }
.btn-outline { 
    border: 1px solid #ddd; 
    background: white; 
    color: var(--primary-dark); 
}
.btn-outline:hover { 
    background: #f8f9fa; 
    border-color: var(--text-light);
    transform: translateY(-1px);
}

/* Stylizacja pola numerycznego z przyciskami +/- */
.number-input-wrapper {
    display: flex;
    align-items: center;
    margin: 10px 0;
}

.number-input-wrapper input[type="number"] {
    width: 70px !important; /* Nadpisanie globalnego 100% */
    text-align: center;
    margin: 0;
    border-radius: 0;
    border-left: none;
    border-right: none;
    height: 45px;
    -moz-appearance: textfield; /* Ukrycie strzałek w Firefox */
}

.number-input-wrapper input[type="number"]::-webkit-outer-spin-button,
.number-input-wrapper input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.btn-number {
    width: 45px;
    height: 45px;
    background: white;
    border: 1px solid #ddd;
    cursor: pointer;
    font-weight: bold;
    font-size: 1.2rem;
    color: var(--primary-dark);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.btn-minus { border-radius: 10px 0 0 10px; }
.btn-plus { border-radius: 0 10px 10px 0; }
.btn-number:hover { background: #f8f9fa; border-color: var(--text-light); }

.input-error {
    border-color: var(--danger) !important;
    background-color: #fff8f8;
}

/* Nowoczesna stylizacja checkbox i radio */
input[type="checkbox"],
input[type="radio"] {
    appearance: none;
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--text-light);
    background-color: #fff;
    cursor: pointer;
    display: inline-grid;
    place-content: center;
    transition: all 0.2s ease-in-out;
    vertical-align: middle;
    position: relative;
    margin: 0;
}

input[type="checkbox"] {
    border-radius: 6px;
}

input[type="radio"] {
    border-radius: 50%;
}

input[type="checkbox"]::before {
    content: "";
    width: 10px;
    height: 10px;
    transform: scale(0);
    transition: 120ms transform ease-in-out;
    background-color: #fff;
    /* Tworzy kształt "ptaszka" (checkmark) */
    clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
}

input[type="radio"]::before {
    content: "";
    width: 10px;
    height: 10px;
    border-radius: 50%;
    transform: scale(0);
    transition: 120ms transform ease-in-out;
    background-color: #fff;
}

input[type="checkbox"]:checked,
input[type="radio"]:checked {
    background-color: var(--accent);
    border-color: var(--accent);
}

input[type="checkbox"]:checked::before,
input[type="radio"]:checked::before {
    transform: scale(1);
}

input[type="checkbox"]:focus,
input[type="radio"]:focus {
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.2);
}

/* Toolbar filtrowania */
.filter-toolbar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    background: #f8f9fa;
    padding: 15px;
    border-radius: 10px;
    align-items: center;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.filter-group label {
    font-size: 0.8rem;
    white-space: nowrap;
}

.filter-toolbar select,
.filter-toolbar input[type="text"],
.filter-toolbar input[type="date"] {
    margin: 0;
    padding: 8px;
    width: auto;
}

.edit-note-row td {
    padding: 0 !important; /* Usuwamy padding z komórki, aby content-card miał pełną kontrolę */
}

/* Zarządzanie załącznikami */
.att-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 15px; margin-top: 15px; }
.att-card { border: 1px solid #ddd; border-radius: 8px; padding: 10px; background: #f9f9f9; position: relative; }
.att-card img { width: 100%; height: 120px; object-fit: cover; border-radius: 4px; }
.att-card .file-icon { font-size: 3rem; text-align: center; display: block; }
.att-card .delete-btn { color: var(--danger); font-size: 0.8rem; cursor: pointer; background: none; border: none; padding: 5px; width: 100%; text-align: center; }

/* Klasy pomocnicze formularzy */
.form-control { 
    padding: 12px; 
    border: 1px solid #ddd; 
    border-radius: 10px; 
    font-family: inherit;
    box-sizing: border-box;
}
textarea.textarea-large { min-height: 250px; resize: vertical; }

/* Style listy tematów i notatek w panelu ucznia */
.note-content {
    margin-top: 15px;
    padding: 20px;
    background: #f8fafc;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
}

/* Stylizacja menu rozwijanego (Akcje) */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    background-color: white;
    min-width: 180px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    border-radius: 12px;
    z-index: 1000;
    padding: 8px 0;
    border: 1px solid #e2e8f0;
}

.dropdown:hover .dropdown-content {
    display: block;
}

.dropdown-content a, 
.dropdown-content button {
    display: block;
    width: 100%;
    padding: 10px 16px;
    text-decoration: none;
    color: var(--primary-dark);
    font-size: 0.85rem;
    text-align: left;
    border: none;
    background: none;
    font-family: inherit;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.dropdown-content a:hover, 
.dropdown-content button:hover {
    background-color: #f1f5f9;
    color: var(--accent);
}

.dropdown-content .delete-action {
    color: var(--danger);
    border-top: 1px solid #eee;
    margin-top: 5px;
    padding-top: 12px;
}

.dropdown-content .delete-action:hover {
    background-color: #fff5f5;
    color: var(--danger);
}