:root {
    --green: #39ff14;
    --green-dim: #1a8c00;
    --green-dark: #0d4d00;
    --bg: #060a06;
    --bg-panel: #0b110b;
    --border: #1f3d1f;
    --error: #ff4444;
    --font: 'Courier New', Courier, monospace;
}

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

body {
    background-color: var(--bg);
    color: var(--green);
    font-family: var(--font);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: 40px 20px;
}

.terminal {
    width: 100%;
    max-width: 800px;
}

.header {
    font-size: 1.4rem;
    font-weight: bold;
    text-shadow: 0 0 10px var(--green);
    border-bottom: 1px solid var(--border);
    padding-bottom: 16px;
    margin-bottom: 32px;
    letter-spacing: 2px;
}

.section {
    margin-bottom: 32px;
}

.label {
    color: var(--green-dim);
    font-size: 0.8rem;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

p {
    line-height: 1.7;
    color: #aad4aa;
}

ul {
    list-style: none;
    padding-left: 0;
}

ul li {
    color: #aad4aa;
    padding: 4px 0;
    line-height: 1.7;
}

ul li::before {
    content: '> ';
    color: var(--green-dim);
}

.cipher-box {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    padding: 24px;
    font-size: 1.3rem;
    letter-spacing: 4px;
    word-spacing: 12px;
    text-shadow: 0 0 8px var(--green);
    line-height: 2;
    word-break: break-all;
}

.stage-badge {
    display: inline-block;
    border: 1px solid var(--green-dim);
    padding: 2px 10px;
    font-size: 0.75rem;
    color: var(--green-dim);
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 32px 0;
}

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

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

@keyframes scanline {
    0% { top: -10%; }
    100% { top: 110%; }
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(transparent, rgba(57, 255, 20, 0.06), transparent);
    animation: scanline 6s linear infinite;
    pointer-events: none;
    z-index: 999;
}