:root {
    --footer-height: 70px;
    --primary: #4f46e5;
    --bg: #f9fafb;
    --card: #ffffff;
    --text: #111827;
    --muted: #6b7280;
    --border: #e5e7eb;
}

* {
    box-sizing: border-box;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    margin: 0;
    font-family: "Inter", system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
}

.container {
    flex: 1;
    max-width: 900px;
    margin: auto;
    padding: 20px;
}

.card {
    background: var(--card);
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    margin-bottom: 20px;
}

h1 {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.muted {
    color: var(--muted);
    font-size: 0.9rem;
}

input[type="file"] {
    border: 2px dashed var(--border);
    padding: 20px;
    width: 100%;
    border-radius: 10px;
    cursor: pointer;
}

select,
button {
    width: 100%;
    padding: 12px;
    margin-top: 10px;
    border-radius: 10px;
    border: 1px solid var(--border);
    font-size: 1rem;
}

button {
    background: var(--primary);
    color: white;
    border: none;
    cursor: pointer;
    transition: 0.2s;
}

button:hover {
    opacity: 0.9;
}

button.secondary {
    background: #e5e7eb;
    color: #111;
}

pre {
    background: #111827;
    color: #e5e7eb;
    padding: 15px;
    border-radius: 10px;
    overflow: auto;
    max-height: 300px;
    font-size: 0.85rem;
}

.hidden {
    display: none;
}

@media (min-width: 600px) {
    .row {
        display: flex;
        gap: 10px;
    }

    .row>* {
        flex: 1;
    }
}

body {
    padding-bottom: var(--footer-height);
}

footer{
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: var(--footer-height);
    background: #111827;
    color: #e5e7eb;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
}