:root {
    --terminal-bg: #0a0a0a;
    --terminal-text: #00ff00;
    --terminal-border: #003300;
    --terminal-accent: #00cc00;
    --terminal-highlight: #008800;
    --terminal-disabled: #004400;
    --short-color: #ff4444;
    --short-bg: rgba(255, 0, 0, 0.1);
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Courier New', monospace;
    background: var(--terminal-bg);
    color: var(--terminal-text);
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
    border: 2px solid var(--terminal-border);
    margin-top: 20px;
    box-shadow: 0 0 20px rgba(0, 255, 0, 0.1);
}

.container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    align-items: start;
}

@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

h1 {
    text-align: center;
    color: var(--terminal-text);
    text-shadow: 0 0 10px rgba(0, 255, 0, 0.5);
    border-bottom: 1px solid var(--terminal-border);
    padding-bottom: 10px;
    margin-bottom: 30px;
    font-weight: normal;
    letter-spacing: 2px;
    grid-column: 1 / -1;
}

.form-group {
    margin-bottom: 20px;
    padding: 15px;
    border: 1px solid var(--terminal-border);
    background: rgba(0, 20, 0, 0.3);
}

label {
    display: block;
    margin-bottom: 8px;
    color: var(--terminal-accent);
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.9em;
    letter-spacing: 1px;
}

input {
    width: 100%;
    padding: 10px;
    background: var(--terminal-bg);
    border: 1px solid var(--terminal-border);
    border-radius: 0;
    color: var(--terminal-text);
    font-family: 'Courier New', monospace;
    font-size: 1em;
}

input:focus {
    outline: none;
    border-color: var(--terminal-accent);
    box-shadow: 0 0 10px rgba(0, 255, 0, 0.3);
}

button {
    background: var(--terminal-bg);
    color: var(--terminal-text);
    padding: 12px 25px;
    border: 1px solid var(--terminal-border);
    border-radius: 0;
    cursor: pointer;
    margin: 5px;
    font-family: 'Courier New', monospace;
    font-size: 1em;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

button:hover {
    background: var(--terminal-highlight);
    border-color: var(--terminal-accent);
    box-shadow: 0 0 15px rgba(0, 255, 0, 0.4);
}

.result-panel {
    background: rgba(0, 30, 0, 0.3);
    border: 1px solid var(--terminal-border);
    padding: 20px;
    min-height: 300px;
    border-left: 3px solid var(--terminal-accent);
    box-shadow: inset 0 0 10px rgba(0, 255, 0, 0.1);
}

.result-content {
    white-space: pre-wrap;
    font-family: 'Courier New', monospace;
    line-height: 1.4;
}

.error {
    color: #ff4444;
    background: rgba(255, 0, 0, 0.1);
    padding: 15px;
    border: 1px solid #ff4444;
    margin-top: 20px;
    font-family: 'Courier New', monospace;
    grid-column: 1 / -1;
}

.hidden {
    display: none;
}

.terminal-header {
    text-align: center;
    color: var(--terminal-accent);
    margin-bottom: 30px;
    font-size: 0.9em;
    grid-column: 1 / -1;
}

.terminal-footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 15px;
    border-top: 1px solid var(--terminal-border);
    color: var(--terminal-disabled);
    font-size: 0.8em;
    grid-column: 1 / -1;
}

.button-group {
    text-align: center;
    margin-top: 20px;
}

/* Hide number input spinners */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type="number"] {
    -moz-appearance: textfield;
}

/* Retro scanlines effect */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
            rgba(0, 255, 0, 0.03) 50%,
            rgba(0, 0, 0, 0.1) 50%
    );
    background-size: 100% 4px;
    z-index: 9999;
    pointer-events: none;
    opacity: 0.3;
}

/* Long/Short Tabs */
.position-tabs {
    display: flex;
    margin-bottom: 20px;
    border: 1px solid var(--terminal-border);
    background: rgba(0, 20, 0, 0.3);
}

.position-tab {
    flex: 1;
    padding: 12px;
    text-align: center;
    background: transparent;
    border: none;
    color: var(--terminal-text);
    font-family: 'Courier New', monospace;
    font-size: 1em;
    cursor: pointer;
    transition: all 0.3s ease;
}

.position-tab.active {
    background: var(--terminal-accent);
    color: var(--terminal-bg);
    font-weight: bold;
}

.position-tab.short.active {
    background: var(--short-color);
    color: var(--terminal-bg);
}

.position-tab:hover:not(.active) {
    background: var(--terminal-highlight);
}

.position-content {
    display: none;
}

.position-content.active {
    display: block;
}

.short-mode {
    color: var(--short-color);
    border-color: var(--short-color);
}

.short-mode .form-group {
    border-color: var(--short-color);
}

.short-mode input:focus {
    border-color: var(--short-color);
    box-shadow: 0 0 10px rgba(255, 0, 0, 0.3);
}