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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    min-height: 100vh;
    color: #e0e0e0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    width: 100%;
    max-width: 500px;
    padding: 20px;
}

.card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 40px;
    backdrop-filter: blur(10px);
    text-align: center;
}

h1 {
    color: #00d4ff;
    margin-bottom: 10px;
    font-size: 2rem;
}

.subtitle {
    color: #a0a0c0;
    margin-bottom: 30px;
    font-size: 1rem;
}

.input-group {
    margin-bottom: 25px;
    text-align: left;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #c0c0e0;
    font-size: 0.95rem;
}

.input-group input {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.08);
    color: #e0e0e0;
    font-size: 1rem;
    font-family: 'Consolas', 'Monaco', monospace;
    transition: all 0.3s ease;
}

.input-group input:focus {
    outline: none;
    border-color: #00d4ff;
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.2);
}

.btn-primary {
    display: block;
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    color: #1a1a2e;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}