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

:root {
    --cyber-purple: #a78bfa;
    --cyber-cyan: #0ea5e9;
    --cyber-pink: #ec4899;
    --cyber-glow: rgba(167, 139, 250, 0.3);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #0a0a0a;
    color: #e0e0e0;
    overflow: hidden;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    width: 100%;
}

.login-box {
    background: #1a1a1a;
    border: 1px solid #333;
    border-radius: 8px;
    padding: 60px 40px;
    width: 360px;
    max-width: 90vw;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
}

.logo {
    text-align: center;
    font-size: 48px;
    margin-bottom: 40px;
    color: #666;
    font-weight: 300;
    letter-spacing: 2px;
}

.auth-step {
    display: none;
}

.auth-step.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

input[type="email"],
input[type="password"],
input[type="text"] {
    width: 100%;
    padding: 14px 16px;
    margin-bottom: 12px;
    background: #0a0a0a;
    border: 1px solid #333;
    border-radius: 4px;
    color: #e0e0e0;
    font-size: 14px;
    transition: all 0.2s ease;
    text-align: center;
    letter-spacing: 1px;
}

input:focus {
    outline: none;
    border-color: rgba(14, 165, 233, 0.3);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.05);
    background: #000;
}

input::placeholder {
    color: #444;
    letter-spacing: 4px;
}

.btn-primary {
    width: 100%;
    padding: 14px;
    background: rgba(14, 165, 233, 0.05);
    border: 1px solid #333;
    border-radius: 4px;
    color: #888;
    font-size: 18px;
    font-weight: 300;
    cursor: pointer;
    transition: all 0.2s ease;
    letter-spacing: 1px;
}

.btn-primary:hover {
    background: rgba(14, 165, 233, 0.1);
    border-color: var(--cyber-purple);
    color: var(--cyber-purple);
    box-shadow: 0 0 12px var(--cyber-glow);
}

.btn-primary:active {
    transform: translateY(1px);
}

.btn-primary:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    transform: none;
}

.btn-link {
    background: none;
    border: none;
    color: #666;
    cursor: pointer;
    font-size: 16px;
    padding: 0;
    margin-left: 8px;
    transition: color 0.2s;
}

.btn-link:hover {
    color: #888;
}

.user-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    padding: 12px 16px;
    background: #0a0a0a;
    border: 1px solid #333;
    border-radius: 4px;
    font-size: 12px;
    color: #888;
    letter-spacing: 0.5px;
}

.error-message {
    color: #ff4444;
    font-size: 12px;
    text-align: center;
    margin-top: 12px;
    opacity: 0;
    transition: opacity 0.3s;
    min-height: 20px;
}

.error-message.show {
    opacity: 1;
}

.loading-spinner {
    display: none;
    width: 24px;
    height: 24px;
    border: 2px solid #333;
    border-top-color: var(--cyber-purple);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 16px auto 0;
}

.loading-spinner.show {
    display: block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

#qrContainer {
    display: flex;
    justify-content: center;
    margin: 24px 0;
    padding: 20px;
    background: #0a0a0a;
    border: 1px solid #333;
    border-radius: 4px;
}

#qrContainer img {
    max-width: 200px;
    border-radius: 4px;
}

.secret-text {
    text-align: center;
    margin-bottom: 16px;
    font-size: 11px;
    color: #666;
    letter-spacing: 0.5px;
}

.secret-text code {
    display: block;
    margin-top: 8px;
    padding: 12px;
    background: #0a0a0a;
    border: 1px solid #333;
    border-radius: 4px;
    color: #888;
    font-family: 'Courier New', monospace;
    font-size: 10px;
    word-break: break-all;
    letter-spacing: 1px;
}