/* Basic Reset & Root Variables */
:root {
    --font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;

    /* Light Theme (Default) */
    --bg-color: #f8f9fa;
    --text-color: #212529;
    --border-color: #dee2e6;
    --input-bg: #ffffff;
    --input-border: #ced4da;
    --button-bg: #0d6efd;
    --button-text: #ffffff;
    --button-hover-bg: #0b5ed7;
    --console-bg: #e9ecef;
    --console-text: #495057;
    --table-header-bg: #e9ecef;
    --table-border: #dee2e6;
    --link-color: #0d6efd;
    --error-color: #dc3545;
    --success-color: #198754;
    --info-color: #0dcaf0;
    --time-color: #6c757d;


    /* Transitions */
    --transition-speed: 0.3s;
}

/* Dark Theme */
body.dark-mode {
    --bg-color: #212529;
    --text-color: #f8f9fa;
    --border-color: #495057;
    --input-bg: #343a40;
    --input-border: #6c757d;
    --button-bg: #0d6efd;
    --button-text: #ffffff;
    --button-hover-bg: #0b5ed7;
    --console-bg: #343a40;
    --console-text: #adb5bd;
    --table-header-bg: #343a40;
    --table-border: #495057;
    --link-color: #6ea8fe;
    --error-color: #f57a7a;
    --success-color: #75b798;
    --info-color: #6edff6;
    --time-color: #adb5bd;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
    padding: 1rem;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    transition: border-color var(--transition-speed) ease;
}

header h1 {
    font-size: 1.8rem;
    font-weight: 600;
}

.controls {
    display: flex;
    gap: 1rem;
    align-items: center;
}

/* Custom File Input */
.file-label {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: var(--button-bg);
    color: var(--button-text);
    border: 1px solid var(--button-bg);
    border-radius: 0.25rem;
    cursor: pointer;
    transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease;
    text-align: center;
}

.file-label:hover {
    background-color: var(--button-hover-bg);
    border-color: var(--button-hover-bg);
}

.file-label input[type="file"] {
    display: none; /* Hide the default input */
}

button {
    padding: 0.5rem 1rem;
    font-size: 1rem;
    background-color: var(--button-bg);
    color: var(--button-text);
    border: 1px solid var(--button-bg);
    border-radius: 0.25rem;
    cursor: pointer;
    transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

button:hover:not(:disabled) {
    background-color: var(--button-hover-bg);
    border-color: var(--button-hover-bg);
}

button:disabled {
    background-color: #6c757d; /* Use a neutral disabled color */
    border-color: #6c757d;
    cursor: not-allowed;
    opacity: 0.7;
}

#themeToggle {
    background-color: #6c757d;
    border-color: #6c757d;
}
#themeToggle:hover {
    background-color: #5a6268;
    border-color: #545b62;
}


main {
    display: grid;
    grid-template-columns: 1fr 1fr; /* Two equal columns */
    gap: 1.5rem;
}

@media (max-width: 768px) {
    main {
        grid-template-columns: 1fr; /* Stack on smaller screens */
    }
    header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    .controls {
        width: 100%;
        justify-content: space-between; /* Space out controls on small screens */
    }
}


.editor-pane, .output-pane {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

h2 {
    font-size: 1.3rem;
    font-weight: 500;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.3rem;
    margin-bottom: 0.5rem;
    transition: border-color var(--transition-speed) ease;
}

textarea#sqlEditor {
    width: 100%;
    padding: 0.75rem;
    font-family: 'Courier New', Courier, monospace; /* Monospace for code */
    font-size: 0.95rem;
    border: 1px solid var(--input-border);
    border-radius: 0.25rem;
    background-color: var(--input-bg);
    color: var(--text-color);
    resize: vertical; /* Allow vertical resizing */
    min-height: 150px;
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

textarea#sqlEditor:focus {
    outline: none;
    border-color: var(--link-color);
    box-shadow: 0 0 0 2px rgba(13, 110, 253, 0.25); /* Subtle focus ring */
}

/* Updated #resultsTableContainer */
#resultsTableContainer {
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
    overflow: auto; /* Enables V & H scroll if content overflows */
    max-height: 400px; /* Limit vertical size */
    background-color: var(--input-bg);
    transition: background-color var(--transition-speed) ease, border-color var(--transition-speed) ease;
    /* Removed padding from container itself */
}

/* Style the placeholder paragraph separately */
#resultsTableContainer p {
    padding: 1rem; /* Add padding only to the placeholder text */
    color: #6c757d;
    margin: 0; /* Ensure no extra margin */
}
body.dark-mode #resultsTableContainer p {
    color: var(--console-text);
}

/* Updated table.results */
table.results {
    /* Removed width: 100% to allow table to expand */
    border-collapse: collapse;
    font-size: 0.9rem;
    /* Optional: ensures table is at least as wide as container if content is narrow */
    /* min-width: 100%; */
}

/* Updated table cells */
table.results th, table.results td {
    border: 1px solid var(--table-border);
    padding: 0.6rem 0.8rem;
    text-align: left;
    transition: border-color var(--transition-speed) ease;
    white-space: nowrap; /* Prevent text wrapping */
}

/* Sticky header styling */
table.results thead th {
    background-color: var(--table-header-bg);
    font-weight: 600;
    position: sticky;
    top: 0;
    z-index: 1; /* Keep header above scrolled content */
    transition: background-color var(--transition-speed) ease;
}

table.results tbody tr:nth-child(even) {
    background-color: rgba(0,0,0,0.03); /* Subtle striping */
}

body.dark-mode table.results tbody tr:nth-child(even) {
    background-color: rgba(255,255,255,0.05); /* Dark mode striping */
}

footer {
    margin-top: 1rem;
}

pre#consoleOutput {
    background-color: var(--console-bg);
    color: var(--console-text);
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
    padding: 1rem;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
    white-space: pre-wrap; /* Wrap long lines */
    word-wrap: break-word;
    min-height: 80px;
    max-height: 200px;
    overflow-y: auto; /* Scrollable console */
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

/* Console message styling */
.console-error { color: var(--error-color); font-weight: bold; }
.console-success { color: var(--success-color); font-weight: bold;}
.console-info { color: var(--text-color); opacity: 0.9; }
body.dark-mode .console-info { color: var(--console-text); }
.console-time { color: var(--time-color); font-style: italic; opacity: 0.8; }