:root { --bg-color: #000000;
--primary-red: #ff0000;
--bright-red: #ff3333; 
--dark-red: #440000;
--text-color: #ff0000;
--input-text: #ff1a1a;
--neon-shadow: 0 0 10px #ff0000, 0 0 20px #ff0000;
--neon-border: 2px solid #ff0000;
} * { box-sizing: border-box;
-webkit-tap-highlight-color: transparent;
} body { margin: 0;
background: var(--bg-color);
font-family: 'Segoe UI', Roboto, Arial, sans-serif;
text-align: center;
color: var(--text-color);
min-height: 100vh;
padding-bottom: 40px;
} h1 { margin-top: 20px;
font-size: 70px;
color: var(--primary-red);
text-shadow: var(--neon-shadow);
text-transform: uppercase;
font-weight: 900;
letter-spacing: 5px;
} .line { width: 100%;
height: 2px;
background: var(--primary-red);
box-shadow: var(--neon-shadow);
position: relative;
top: -20px;
margin-bottom: 40px;
} .container { margin: 0 auto;
max-width: 500px;
padding: 0 20px;
display: flex;
flex-direction: column;
gap: 20px;
} .btn, .main-btn, .nav-btn { display: block;
width: 100%;
padding: 18px 0;
font-size: 20px;
color: var(--primary-red);
text-decoration: none;
border: var(--neon-border);
border-radius: 50px;
background: transparent;
box-shadow: var(--neon-shadow);
cursor: pointer;
font-weight: 900;
text-transform: uppercase;
transition: 0.3s;
margin: 15px auto;
letter-spacing: 2px;
text-align: center;
} .btn:active, .main-btn:active { transform: scale(0.95);
box-shadow: 0 0 5px #ff0000;
} .card { background: #000;
border: var(--neon-border);
border-radius: 40px;
padding: 20px;
box-shadow: inset 0 0 15px rgba(255, 0, 0, 0.2), 0 0 15px rgba(255, 0, 0, 0.2);
text-align: left;
} .label { display: block;
font-size: 12px;
text-transform: uppercase;
margin-bottom: 10px;
margin-left: 15px;
font-weight: bold;
letter-spacing: 1px;
color: var(--primary-red);
} textarea, input { background: #050000;
border: 1px solid var(--dark-red);
color: var(--input-text);
border-radius: 25px;
padding: 15px 20px;
width: 100%;
font-size: 16px;
outline: none;
transition: 0.3s;
} .row { display: flex;
gap: 15px;
} .btn-group { display: flex;
background: #0a0000;
border: 1px solid var(--dark-red);
border-radius: 30px;
padding: 5px;
width: 100%;
} .btn-toggle { flex: 1;
background: transparent;
border: none;
color: var(--primary-red);
padding: 12px;
border-radius: 25px;
cursor: pointer;
font-weight: bold;
text-transform: uppercase;
font-size: 11px;
transition: 0.3s;
} .btn-toggle.active { background: var(--primary-red);
color: #000;
box-shadow: var(--neon-shadow);
} .secondary-btn { background: transparent;
border: 1px solid var(--primary-red);
color: var(--primary-red);
border-radius: 40px;
padding: 12px;
cursor: pointer;
font-weight: bold;
flex: 1;
text-transform: uppercase;
font-size: 11px;
display: flex;
align-items: center;
justify-content: center;
text-decoration: none;
} .output-box { background: #020000;
border: 1px solid var(--dark-red);
border-radius: 30px;
padding: 20px;
min-height: 120px;
max-height: 250px;
overflow-y: auto;
color: var(--bright-red);
font-family: monospace;
white-space: pre-wrap;
word-break: break-all;
} .toast { position: fixed;
bottom: 20px;
background: var(--primary-red);
color: #000;
padding: 10px 30px;
border-radius: 20px;
font-weight: bold;
display: none;
box-shadow: var(--neon-shadow);
z-index: 2000;
left: 50%;
transform: translateX(-50%);
}