:root {
    --bg: #ffffff;
    --surface: #FAFAFA;
    --border: #E0E0E0;
    --text: #000000;
    --gold: #D4AF37;
    --btn-bg: #000000;
    --btn-fg: #D4AF37;
    --btn-hover-bg: #D4AF37;
    --btn-hover-fg: #000000;
}

[data-theme="dark"] {
    --bg: #111111;
    --surface: #1A1A1A;
    --border: #2E2E2E;
    --text: #EEEEEE;
    --gold: #D4AF37;
    --btn-bg: #D4AF37;
    --btn-fg: #000000;
    --btn-hover-bg: #000000;
    --btn-hover-fg: #D4AF37;
}

/* Disable text highlight/selection globally */
body {
    -webkit-user-select: none;
    -ms-user-select: none;
    user-select: none;

    background-color: var(--bg);
    color: var(--text);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Allow selection ONLY where functionally necessary */
textarea, #json-output {
    -webkit-user-select: auto;
    -ms-user-select: auto;
    user-select: auto;
}

.container {
    width: 100%;
    max-width: 1000px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

header {
    text-align: center;
    border-bottom: 2px solid var(--gold);
    padding-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
    margin: 0 0 0.5rem 0;
    letter-spacing: 2px;
}

.highlight {
    color: var(--gold);
}

main {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex-grow: 1;
}

.editor-panel {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    position: relative;
}

textarea {
    width: 100%;
    min-height: 250px;
    background-color: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
    border-left: 4px solid var(--text);
    padding: 1rem;
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
    resize: vertical;
    outline: none;
    box-sizing: border-box;
    transition: border-color 0.3s ease, background-color 0.3s ease, color 0.3s ease;
}

textarea:focus {
    border-left-color: var(--gold);
}

.controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

button {
    background-color: var(--btn-bg);
    color: var(--btn-fg);
    border: 2px solid var(--btn-bg);
    padding: 0.75rem 2rem;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

button:hover {
    background-color: var(--btn-hover-bg);
    color: var(--btn-hover-fg);
    border-color: var(--gold);
}

button.secondary {
    background-color: var(--bg);
    color: var(--text);
    border-color: var(--text);
}

button.secondary:hover {
    background-color: var(--btn-bg);
    color: var(--btn-fg);
    border-color: var(--btn-bg);
}

pre {
    background-color: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
    border-left: 4px solid var(--gold);
    padding: 1rem;
    min-height: 250px;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
    margin: 0;
    transition: background-color 0.3s ease, color 0.3s ease;
}

#error-message {
    background-color: #000000;
    color: var(--gold);
    padding: 1rem;
    margin-bottom: 1rem;
    font-family: monospace;
    border-left: 4px solid red;
}

.hidden {
    display: none !important;
}

#theme-toggle {
    position: fixed;
    top: 1rem;
    right: 1rem;
    padding: 0.4rem 0.9rem;
    font-size: 0.75rem;
    z-index: 100;
}

footer {
    text-align: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

#sponsor-btn {
    display: inline-block;
    background-color: var(--btn-bg);
    color: var(--btn-fg);
    border: 2px solid var(--btn-bg);
    padding: 0.5rem 1.5rem;
    font-size: 0.85rem;
    font-weight: bold;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

#sponsor-btn:hover {
    background-color: var(--btn-hover-bg);
    color: var(--btn-hover-fg);
    border-color: var(--gold);
}