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

body {
    background: linear-gradient(135deg, #0a0a1e 0%, #1a0a2e 100%);
    color: #fff;
    font-family: 'Segoe UI', Arial, sans-serif;
    min-height: 100vh;
    padding: 40px 20px;
}

.container { max-width: 900px; margin: 0 auto; }

.logo {
    font-size: 56px;
    font-weight: 900;
    text-align: center;
    background: linear-gradient(90deg, #ff2020, #ff8c00, #ffd700);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 20px;
}

.tagline {
    text-align: center;
    color: #aaa;
    font-size: 18px;
    margin-bottom: 60px;
}

.card {
    background: rgba(20, 10, 40, 0.7);
    border: 2px solid #ff2020;
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 30px;
}

.card h2 {
    color: #ffd700;
    margin-bottom: 20px;
    font-size: 24px;
}

.card p {
    color: #aaa;
    margin-bottom: 20px;
    line-height: 1.6;
}

input, textarea, select {
    width: 100%;
    padding: 12px 15px;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid #ff2020;
    border-radius: 8px;
    color: #fff;
    font-size: 14px;
    margin-bottom: 15px;
    font-family: inherit;
}

textarea {
    min-height: 200px;
    font-family: monospace;
}

.btn, button {
    background: linear-gradient(90deg, #ff2020, #ff8c00);
    color: #fff;
    border: none;
    padding: 15px 40px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: 0.3s;
}

.btn:hover, button:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 50px rgba(255, 215, 0, 0.8);
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.feature {
    background: rgba(30, 15, 60, 0.5);
    border: 1px solid #ff2020;
    border-radius: 12px;
    padding: 20px;
}

.feature h3 { color: #ffd700; margin-bottom: 10px; font-size: 18px; }
.feature p { color: #aaa; font-size: 14px; }

.result {
    display: none;
    background: rgba(0, 50, 0, 0.5);
    border: 1px solid #00ff88;
    border-radius: 8px;
    padding: 15px;
    margin-top: 15px;
    color: #00ff88;
    font-family: monospace;
    word-break: break-all;
}

.result.active { display: block; }
.result.error {
    background: rgba(50, 0, 0, 0.5);
    border-color: #ff2020;
    color: #ff2020;
}

.footer {
    text-align: center;
    color: #555;
    margin-top: 60px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 13px;
}