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

body {
    font-family: 'Courier New', monospace;
    background: #1a1a1a;
    color: #0f0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    background: #111;
    padding: 1.5rem;
    border-bottom: 2px solid #0f0;
    text-align: center;
}

h1 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

header p {
    color: #888;
    font-size: 0.9rem;
}

.controls {
    background: #111;
    padding: 1rem;
    border-bottom: 1px solid #333;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.control-group {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

input[type="file"] {
    background: #000;
    border: 1px solid #0f0;
    color: #0f0;
    padding: 0.4rem;
    font-family: inherit;
    font-size: 0.9rem;
    cursor: pointer;
}

input[type="file"]::file-selector-button {
    background: #0f0;
    color: #000;
    border: none;
    padding: 0.4rem 0.8rem;
    font-family: inherit;
    font-weight: bold;
    cursor: pointer;
    margin-right: 0.5rem;
}

input[type="file"]::file-selector-button:hover {
    background: #0c0;
}

select {
    background: #000;
    border: 1px solid #0f0;
    color: #0f0;
    padding: 0.4rem 0.8rem;
    font-family: inherit;
    font-size: 0.9rem;
    cursor: pointer;
}

select option {
    background: #000;
    color: #0f0;
}

button {
    background: #0f0;
    color: #000;
    border: none;
    padding: 0.4rem 1rem;
    font-family: inherit;
    font-size: 0.9rem;
    cursor: pointer;
    font-weight: bold;
}

button:hover {
    background: #0c0;
}

button:disabled {
    background: #555;
    color: #888;
    cursor: not-allowed;
}

.sample-files {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.sample-files span {
    color: #888;
    font-size: 0.9rem;
}

.sample-btn {
    background: #333;
    color: #0f0;
    padding: 0.3rem 0.8rem;
    font-size: 0.85rem;
}

.sample-btn:hover {
    background: #444;
}

#viewer-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background: transparent;
    min-height: 600px;
}

#viewer-container.size-640 {
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

#viewer-container.size-960 {
    max-width: 960px;
    margin-left: auto;
    margin-right: auto;
}

#viewer-container.size-1280 {
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
}

#viewer-container:empty::before {
    content: 'Select an ANSI file to view';
    color: #555;
    font-size: 1.2rem;
}

.info {
    background: #111;
    border-top: 1px solid #333;
    padding: 1rem;
    font-size: 0.85rem;
    color: #888;
}

.info p {
    margin-bottom: 0.5rem;
}

.info code {
    background: #000;
    color: #0f0;
    padding: 0.2rem 0.5rem;
    border: 1px solid #333;
    border-radius: 2px;
    font-family: inherit;
    font-size: 0.8rem;
}