* {
    box-sizing: border-box;
}

:root {
    --green: #33ff66;
    --green-dim: #1f9c46;
    --green-glow: rgba(51, 255, 102, 0.55);
    --bg: #050705;
    --bg-panel: #0a0f0a;
}

body {
    font-family: 'Consolas', 'Courier New', monospace;
    background: var(--bg);
    background-image:
        repeating-linear-gradient(
            0deg,
            rgba(51, 255, 102, 0.035) 0px,
            rgba(51, 255, 102, 0.035) 1px,
            transparent 1px,
            transparent 3px
        );
    color: var(--green);
    margin: 0;
    padding: 2rem;
    text-shadow: 0 0 2px var(--green-glow);
}

header {
    max-width: 900px;
    margin: 0 auto 2rem;
    border-bottom: 1px dashed var(--green-dim);
    padding-bottom: 1rem;
}

header h1 {
    margin-bottom: 0.5rem;
    font-size: 1.4rem;
    letter-spacing: 0.02em;
    text-shadow: 0 0 6px var(--green-glow), 0 0 12px var(--green-glow);
}

.prompt {
    color: var(--green);
}

.path {
    color: var(--green-dim);
}

.cursor {
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    50.01%, 100% { opacity: 0; }
}

.subtitle {
    color: var(--green-dim);
    margin-top: 0;
    font-size: 0.85rem;
    line-height: 1.5;
}

.subtitle code {
    color: var(--green);
    background: rgba(51, 255, 102, 0.08);
    padding: 0 0.25rem;
}

main {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.panel {
    background: var(--bg-panel);
    border: 1px solid var(--green-dim);
    border-radius: 2px;
    padding: 1.25rem 1.5rem;
    box-shadow: 0 0 12px rgba(51, 255, 102, 0.12), inset 0 0 20px rgba(51, 255, 102, 0.03);
}

.panel h2 {
    margin-top: 0;
    font-size: 1rem;
    letter-spacing: 0.05em;
    color: var(--green);
    text-shadow: 0 0 6px var(--green-glow);
}

label {
    display: block;
    margin-top: 0.75rem;
    margin-bottom: 0.25rem;
    font-size: 0.8rem;
    color: var(--green-dim);
}

textarea, button {
    width: 100%;
    font-family: inherit;
    font-size: 0.9rem;
    padding: 0.6rem;
    border-radius: 2px;
    border: 1px solid var(--green-dim);
    background: #000;
    color: var(--green);
    caret-color: var(--green);
}

textarea {
    resize: vertical;
}

textarea:focus, button:focus {
    outline: none;
    border-color: var(--green);
    box-shadow: 0 0 8px var(--green-glow);
}

textarea[readonly] {
    color: var(--green-dim);
    background: #030503;
}

textarea::placeholder {
    color: var(--green-dim);
    opacity: 0.6;
}

.hint {
    font-style: italic;
    color: var(--green-dim);
    opacity: 0.8;
}

button {
    margin-top: 0.75rem;
    background: #000;
    border: 1px solid var(--green);
    cursor: pointer;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: lowercase;
    transition: background 0.15s ease, color 0.15s ease;
}

button:hover {
    background: var(--green);
    color: #000;
    text-shadow: none;
}

pre {
    background: #000;
    border: 1px solid var(--green-dim);
    border-radius: 2px;
    padding: 0.75rem;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
    font-size: 0.85rem;
    color: var(--green-dim);
}