:root {
    --bg-color: #f8f9fa;
    --container-bg: #fff;
    --text-color: #333;
    --border-color: #ddd;
    --input-border: #ccc;
    --input-bg: #fff;
    --text-secondary: #777;
    --button-bg: #007bff;
    --button-hover: #0056b3;
    --error-bg: #f8d7da;
    --error-border: #f5c6cb;
    --error-text: #721c24;
    --table-header-bg: #f4f4f4;
    --table-row-even: #f9f9f9;
    --table-row-hover: #e9ecef;
    --shadow: rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
    --bg-color: #1a1a1a;
    --container-bg: #2d2d2d;
    --text-color: #e0e0e0;
    --border-color: #444;
    --input-border: #555;
    --input-bg: #3a3a3a;
    --text-secondary: #aaa;
    --button-bg: #0d6efd;
    --button-hover: #0b5ed7;
    --error-bg: #4a1f1f;
    --error-border: #6b2a2a;
    --error-text: #f5c6cb;
    --table-header-bg: #3a3a3a;
    --table-row-even: #333;
    --table-row-hover: #404040;
    --shadow: rgba(0, 0, 0, 0.3);
}

body {
    font-family: Arial, sans-serif;
    margin: 20px;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.form-container {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--container-bg);
    padding: 20px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    box-shadow: 0 0 10px var(--shadow);
    transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

[data-theme="dark"] .form-container {
    box-shadow: none;
    border: none;
    outline: none;
}

.form-container h2 {
    margin-bottom: 20px;
    font-size: 24px;
    text-align: center;
    color: var(--text-color);
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: var(--text-color);
}

.form-group textarea,
.form-group input[type="text"],
.form-group input[type="submit"] {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--input-border);
    border-radius: 4px;
    box-sizing: border-box;
    background-color: var(--input-bg);
    color: var(--text-color);
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-group input[type="submit"] {
    background-color: var(--button-bg);
    color: #fff;
    font-weight: bold;
    cursor: pointer;
    margin-top: 10px;
    border: none;
    transition: background-color 0.3s;
}

.form-group input[type="submit"]:hover {
    background-color: var(--button-hover);
}

.form-text {
    font-size: 12px;
    color: var(--text-secondary);
}
.alert {
    margin-top: 20px;
    padding: 15px;
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    border-radius: 4px;
}

[data-theme="dark"] .alert {
    background-color: #1e3a1e;
    color: #90ee90;
    border-color: #2d5a2d;
}

/* General table styling */
.container {
    max-width: 1000px;
    margin: 20px auto;
    background-color: var(--container-bg);
    padding: 20px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    box-shadow: 0 0 10px var(--shadow);
    overflow: auto;
    transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

[data-theme="dark"] .container {
    box-shadow: none;
    border: none;
    overflow: auto;
}

[data-theme="dark"] .container::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

[data-theme="dark"] .container::-webkit-scrollbar-track {
    background: var(--bg-color);
}

[data-theme="dark"] .container::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

[data-theme="dark"] .container::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

.container h3 {
    color: var(--text-color);
}

.table-container h3 {
    text-align: center;
    margin-bottom: 15px;
    font-size: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 10px 0;
}

table, th, td {
    border: 1px solid var(--input-border);
}

th, td {
    padding: 10px;
    text-align: left;
    vertical-align: middle;
    color: var(--text-color);
}

th {
    background-color: var(--table-header-bg);
    font-weight: bold;
}

tr:nth-child(even) {
    background-color: var(--table-row-even);
}

tr:hover {
    background-color: var(--table-row-hover);
}

caption {
    caption-side: top;
    text-align: left;
    padding: 5px 0;
    font-weight: bold;
    font-size: 16px;
    color: var(--text-color);
}

.table-container .no-data {
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
    padding: 15px;
}

/* Responsive styling */
@media (max-width: 600px) {
    table, thead, tbody, th, td, tr {
        display: block;
        width: 100%;
    }
    thead tr {
        position: absolute;
        top: -9999px;
        left: -9999px;
    }
    tr {
        border: 1px solid #ddd;
        margin-bottom: 5px;
    }
    td {
        border: none;
        padding-left: 50%;
        position: relative;
        text-align: left;
    }
    td::before {
        content: attr(data-label);
        position: absolute;
        left: 10px;
        width: calc(50% - 20px);
        font-weight: bold;
        color: var(--text-color);
    }
}

/* Theme toggle button */
.theme-toggle {
    position: fixed !important;
    top: 20px !important;
    right: 20px !important;
    left: auto !important;
    margin: 0 !important;
    background-color: var(--button-bg);
    color: #fff;
    border: none;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    font-weight: bold;
    box-shadow: 0 2px 5px var(--shadow);
    transition: background-color 0.3s ease, transform 0.2s ease;
    z-index: 10000 !important;
    display: inline-flex !important;
    align-items: center;
    gap: 5px;
    min-width: 80px;
    justify-content: center;
}

.theme-toggle:hover {
    background-color: var(--button-hover);
    transform: scale(1.05);
}

.theme-toggle:active {
    transform: scale(0.95);
}