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

body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    width: 100%;
    padding: 15px;
}

@media (max-width: 600px) {
    body {
        padding: 10px;
    }
}

.login-container {
    width: 100%;
    max-width: 450px;
    padding: 0;
}

@media (max-width: 600px) {
    .login-container {
        max-width: 100%;
    }
}

.login-box {
    background: rgba(20, 20, 30, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
    width: 100%;
    box-sizing: border-box;
}

@media (max-width: 768px) {
    .login-box {
        padding: 30px 25px;
        border-radius: 16px;
    }
}

@media (max-width: 480px) {
    .login-box {
        padding: 25px 20px;
        border-radius: 14px;
    }
}

.login-box h1 {
    font-family: 'Teko', sans-serif;
    font-size: 3rem;
    color: #ffd700;
    text-align: center;
    margin-bottom: 10px;
}

@media (max-width: 768px) {
    .login-box h1 {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .login-box h1 {
        font-size: 2rem;
        margin-bottom: 8px;
    }
}

.login-box h2 {
    text-align: center;
    color: #e0e0e0;
    margin-bottom: 30px;
    font-size: 1.5rem;
}

@media (max-width: 768px) {
    .login-box h2 {
        font-size: 1.3rem;
        margin-bottom: 25px;
    }
}

@media (max-width: 480px) {
    .login-box h2 {
        font-size: 1.1rem;
        margin-bottom: 20px;
    }
}

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

.input-group label {
    display: block;
    color: #aaa;
    margin-bottom: 8px;
    font-weight: 500;
}

.input-group input {
    width: 100%;
    padding: 12px 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #fff;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

@media (max-width: 768px) {
    .input-group input {
        padding: 11px 13px;
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    .input-group input {
        padding: 10px 12px;
        font-size: 0.9rem;
    }
}

.input-group input:focus {
    outline: none;
    border-color: #ffd700;
    background: rgba(255, 255, 255, 0.08);
}

.login-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #ffd700, #ffed4e);
    color: #000;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
}

@media (max-width: 768px) {
    .login-btn {
        padding: 13px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .login-btn {
        padding: 12px;
        font-size: 0.95rem;
    }
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(255, 215, 0, 0.4);
}

.register-link {
    text-align: center;
    margin-top: 20px;
    color: #aaa;
}

.register-link a {
    color: #ffd700;
    text-decoration: none;
    font-weight: 600;
}

.register-link a:hover {
    text-decoration: underline;
}

.wrong-credentials {
    background-color: rgba(255, 0, 0, 0.1);
    border: 1px solid #ff4d4d;
    padding: 10px;
    border-radius: 8px;
    margin-top: 15px;
    text-align: center;
    display: none;
}

.error-message {
    color: #ff4d4d;
    font-weight: 600;
}

.back-to-lobby {
    display: block;
    margin-top: 20px;
    padding: 10px 20px;
    background: #2a3f4d;
    color: #94a3b8;
    border-radius: 6px;
    text-decoration: none;
    text-align: center;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid #3b5c6f;
}

.back-to-lobby:hover {
    background: #3b5c6f;
    color: #fff;
    border-color: #3b82f6;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
}

/* Адаптивность */
@media (max-width: 768px) {
    body {
        padding: 15px;
    }
    
    .login-container {
        max-width: 100%;
        padding: 15px;
    }
    
    .login-box {
        padding: 30px 25px;
    }
    
    .login-box h1 {
        font-size: 2.5rem;
    }
    
    .login-box h2 {
        font-size: 1.3rem;
        margin-bottom: 25px;
    }
    
    .input-group {
        margin-bottom: 20px;
    }
    
    .input-group input {
        padding: 11px 13px;
        font-size: 0.95rem;
    }
    
    .login-btn {
        padding: 13px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .login-box {
        padding: 25px 20px;
        border-radius: 16px;
    }
    
    .login-box h1 {
        font-size: 2.2rem;
        margin-bottom: 8px;
    }
    
    .login-box h2 {
        font-size: 1.2rem;
        margin-bottom: 20px;
    }
    
    .input-group {
        margin-bottom: 18px;
    }
    
    .input-group label {
        font-size: 0.9rem;
        margin-bottom: 6px;
    }
    
    .input-group input {
        padding: 10px 12px;
        font-size: 0.9rem;
    }
    
    .login-btn {
        padding: 12px;
        font-size: 0.95rem;
    }
    
    .register-link {
        font-size: 0.9rem;
        margin-top: 16px;
    }
    
    .back-to-lobby {
        padding: 9px 18px;
        font-size: 0.85rem;
    }
}

@media (max-width: 360px) {
    .login-box h1 {
        font-size: 2rem;
    }
    
    .login-box {
        padding: 20px 15px;
    }
}